Appendices for Installation, Operation and Maintenance Manual. Danfoss PAHT G 6, PAHT 6, PAHT 4, PAHT 12.5, PAHT 10, PAHT 2, PAHT 3.2, PAHT G 2, PAHT G 12.5, PAHT G 10
Below you will find brief information for high pressure pump PAHT 2, high pressure pump PAHT G 2, high pressure pump PAHT 3.2, high pressure pump PAHT G 3.2, high pressure pump PAHT 4, high pressure pump PAHT G 4, high pressure pump PAHT 6, high pressure pump PAHT G 6, high pressure pump PAHT 10, high pressure pump PAHT G 10, high pressure pump PAHT 12.5, high pressure pump PAHT G 12.5. These pumps designed for the use in systems with technical water. The pumps must be installed according to local regulations.
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MAKING MODERN LIVING POSSIBLE
User manual
Appendices for Installation, Operation and Maintenance Manual
PAHT / PAHT G 2-12.5 pumps
PAHT/PAHT G 2 and
PAHT/PAHT G 12.5
danfoss.high-pressurepumps.com
User manual
Table of Contents
Installation, Operation and Maintenance Manual for PAHT / PAHT G 2-12.5 pumps
3 .
1 .
2 .
Electric motor manual (182R9230) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .51
Trouble shooting guide for PAH, PAHT, PAHT G, PAHT 674 and PAH F pumps . . . . . . . . . . . . .73
Right and wrong - Trouble shooting guide for water hydraulic systems (180R9042) . . . . . . .83
18
180R9287 / IOM PAHT /PAHT G 2-12.5 pumps - v01 / 06.2013
MAKING MODERN LIVING POSSIBLE
1. Data sheet PAHT /
PAHT G 2-308 pumps
Data sheet
PAHT 2-308 pumps /
PAHT G 2-308 pumps
danfoss.high-pressurepumps.com
Data sheet PAHT 2-308 and PAHT G 2-308 pumps
Table of Contents
Data sheet
PAHT / PAHT G 2-308 pumps
(521B1247)
1.
2.
3.
4.
4.1
4.2
4.3
4.4
5.
5.1
5.2
5.3
5.4
5.5
Introduction
Benefits
Application examples
Technical data
PAHT 2-12.5
PAHT 20-32
PAHT 50-90
PAHT 256-308
Flow
PAHT 2-6.3 flow curves at max pressure
PAHT 10-12.5 flow curves at max pressure
PAHT 20-32 flow curves at max pressure
PAHT 50-90 flow curves at max pressure
PAHT 256-308 flow curves at max pressure
6.
7.
7.1
7.2
7.3
7.4
Motor requirements
Installation
Filtration
Noise
Open-system design
Closed-system design
8.
8.1
8.2
8.3
8.4
8.5
PAHT 2-6.3
PAHT 10-12.5
PAHT 20-32
PAHT 50-90
PAHT 256-308
9. Service
1. Introduction
•
•
•
The Danfoss range of PAHT and PAHT G highpressure pumps is specifically designed for use with technical water such as:
Ultra-pure water that has undergone multiple reverse osmosis processes
De-ionized water
Demineralized water
Danfoss PAHT pumps are positive displacement pumps, with axial pistons that move a fixed amount of water in each cycle. Flow is proportional to the number of input shaft revolutions
(rpm). Unlike centrifugal pumps, they produce the same flow at a given speed no matter what the discharge pressure.
The range of PAHT G pumps is based on the standard PAHT pump series. The PAHT G pumps are made with some extra coatings that reduce the wear of the pump. This coating is particularly important for pumps used in gas turbine applications or other similar applications where the wear of the pumps is high due to the ultra pure water quality.
The next pages will cover both PAHT and PAHT G pumps with the name PAHT pumps.
Data sheet PAHT 2-308 and PAHT G 2-308 pumps
Table of Contents
Data sheet
PAHT / PAHT G 2-308 pumps
(521B1247)
1.
2.
3.
4.
4.1
4.2
4.3
4.4
5.
5.1
5.2
5.3
5.4
5.5
Introduction
Benefits
Application examples
Technical data
PAHT 2-12.5
PAHT 20-32
PAHT 50-90
PAHT 256-308
Flow
PAHT 2-6.3 flow curves at max pressure
PAHT 10-12.5 flow curves at max pressure
PAHT 20-32 flow curves at max pressure
PAHT 50-90 flow curves at max pressure
PAHT 256-308 flow curves at max pressure
6.
7.
7.1
7.2
7.3
7.4
Motor requirements
Installation
Filtration
Noise
Open-system design
Closed-system design
8.
8.1
8.2
8.3
8.4
8.5
PAHT 2-6.3
PAHT 10-12.5
PAHT 20-32
PAHT 50-90
PAHT 256-308
9. Service
1. Introduction
•
•
•
The Danfoss range of PAHT and PAHT G highpressure pumps is specifically designed for use with technical water such as:
Ultra-pure water that has undergone multiple reverse osmosis processes
De-ionized water
Demineralized water
Danfoss PAHT pumps are positive displacement pumps, with axial pistons that move a fixed amount of water in each cycle. Flow is proportional to the number of input shaft revolutions
(rpm). Unlike centrifugal pumps, they produce the same flow at a given speed no matter what the discharge pressure.
The range of PAHT G pumps is based on the standard PAHT pump series. The PAHT G pumps are made with some extra coatings that reduce the wear of the pump. This coating is particularly important for pumps used in gas turbine applications or other similar applications where the wear of the pumps is high due to the ultra pure water quality.
The next pages will cover both PAHT and PAHT G pumps with the name PAHT pumps.
Data sheet PAHT 2-308 and PAHT G 2-308 pumps
Below sectional drawing is an example of a PAHT pump.
10
1: Shaft sealing
2: Mounting flange
3: Retainer ring
4: Piston/shoe
5: Valve plate
6: Swash plate
7: Cylinder barrel
2 1 9 5 4 7 8 11
8: Spring
9: Port plate
10: Connecting flange
11: Housing with bearing
3 6
2. Benefits
•
•
•
Zero risk of lubricant contamination:
- Oil lubricants are replaced with the pumped medium, water, so there is no contamination risk from the pump.
Low maintenance costs:
- Efficient design and all-stainless steel construction ensure exceptionally long life. When Danfoss specifications are met, service intervals of up to 8,000 hours can be expected. Service is easy, and can be carried out on site due to the simple design and few parts.
Low energy costs:
- The highly efficient axial piston design provides the lowest electricity consumption of any comparable pump on
• the market.
Easy installation:
The lightest and most compact design available.
- Pump can be installed horizontally or vertically.
- No pulsation dampeners necessary due to extremely low-pressure pulsation.
- tion engines.
- pressure and water supply from a tank.
•
- high mechanical efficiency.
Certified quality:
- ments, VDI 6022, HACCP.
-
ISO 9006, ISO 14001
ATEX available on PAHT G,
API available on request
3. Application examples
•
•
•
High-pressure cleaning with ultra-pure water, as used in the manufacturing of flat-panel displays and other electronic products.
High-pressure cleaning with ultra-pure water, as used in the manufacturing of parts for the automobile industry.
Adiabatic cooling systems to replace or supplement standard A/C systems in server rooms and factories.
•
•
•
Humidification in office buildings, electronic component manufacturing, dairies, greenhouses, etc.
Dust suppression and odor control systems, for example in paper, textile and wood production.
Reduction of NOx emissions in diesel engines.
2
521B1247 / DKCFN.PD.012.M1.02 / 05.2013
Data sheet
4. Technical data
PAHT 2-308 and PAHT G 2-308 pumps
4.1 PAHT 2-12.5
Pump size
Code number PAHT
Code number PAHT G
Housing material
Geometric displacement
cm³/rpm in³/rpm
Pressure
Min. outlet pressure barg psig
Max. outlet pressure, continuous
Inlet pressure, continuous
Max. inlet pressure, peak barg psig barg psig barg psig
PAHT 2
180B0031
180B1003
AISI 304
2
0.12
30
435
100
1450
0-4
0-58
4
58
Speed
Min. speed, continuous rpm 1000
Max. speed, continuous rpm 3000
Typical flow - Flow curves available in item 5
1000 rpm at max. pressure l/min 0.9
l/min 1.9
1500 rpm at max. pressure
1200 rpm at max. pressure gpm 0.3
0.7
1800 rpm at max. pressure gpm
Typical motor size
1500 rpm at max. pressure kW hp 1800 rpm at max. pressure
Torque at max. outlet pressure
Nm lbf-ft
Media temperature
Ambient temperature
Sound pressure level*
Weight
°C
°F
°C
°F dB(A) kg lb
0.75
1.0
4.4
3.2
2-50
37-122
0-50
32-122
76
4.4
9.7
PAHT 3.2
180B0077
180B1004
AISI 304
3.2
0.20
30
435
100
1450
0-4
0-58
4
58
1000
3000
2.3
3.8
0.8
1.3
1.1
1.5
6.7
4.9
2-50
37-122
0-50
32-122
76
4.4
9.7
PAHT 4 PAHT 6.3
180B0030
180B1005
AISI 304
4
0.24
30
435
100
1450
0-4
0-58
4
58
1000
3000
3.1
5.1
1.0
1.7
1.5
2.0
8.1
6.0
2-50
37-122
0-50
32-122
76
4.4
9.7
180B0029
180B1006
AISI 304
6.3
0.38
30
435
100
1450
0-4
0-58
4
58
1000
3000
5.5
8.6
1.8
2.8
2.2
3.0
12.4
9.2
2-50
37-122
0-50
32-122
76
4.4
9.7
PAHT 10 PAHT 12.5
180B0032
180B1007
AISI 304
10
0.61
30
435
140
2031
0-4
0-58
4
58
1000
2400
8.0
12.8
2.6
4.1
4.0
7.5
25.6
18.9
2-50
37-122
0-50
32-122
75
7.7
17.0
180B0033
180B1008
AISI 304
12.5
0.76
30
435
140
2031
0-4
0-58
4
58
1000
2400
10.5
16.5
3.4
5.3
5.5
7.5
7.7
17.0
31.7
23.4
2-50
37-122
0-50
32-122
75
PA, 1m
] values are calculated.
Measured at max pressure and rpm for a motor pump unit.
Data sheet
4. Technical data
PAHT 2-308 and PAHT G 2-308 pumps
4.1 PAHT 2-12.5
Pump size
Code number PAHT
Code number PAHT G
Housing material
Geometric displacement
cm³/rpm in³/rpm
Pressure
Min. outlet pressure barg psig
Max. outlet pressure, continuous
Inlet pressure, continuous
Max. inlet pressure, peak barg psig barg psig barg psig
PAHT 2
180B0031
180B1003
AISI 304
2
0.12
30
435
100
1450
0-4
0-58
4
58
Speed
Min. speed, continuous rpm 1000
Max. speed, continuous rpm 3000
Typical flow - Flow curves available in item 5
1000 rpm at max. pressure l/min 0.9
l/min 1.9
1500 rpm at max. pressure
1200 rpm at max. pressure gpm 0.3
0.7
1800 rpm at max. pressure gpm
Typical motor size
1500 rpm at max. pressure kW hp 1800 rpm at max. pressure
Torque at max. outlet pressure
Nm lbf-ft
Media temperature
Ambient temperature
Sound pressure level*
Weight
°C
°F
°C
°F dB(A) kg lb
0.75
1.0
4.4
3.2
2-50
37-122
0-50
32-122
76
4.4
9.7
PAHT 3.2
180B0077
180B1004
AISI 304
3.2
0.20
30
435
100
1450
0-4
0-58
4
58
1000
3000
2.3
3.8
0.8
1.3
1.1
1.5
6.7
4.9
2-50
37-122
0-50
32-122
76
4.4
9.7
PAHT 4
180B0030
180B1005
AISI 304
4
0.24
30
435
100
1450
0-4
0-58
4
58
1000
3000
3.1
5.1
1.0
1.7
1.5
2.0
8.1
6.0
2-50
37-122
0-50
32-122
76
4.4
9.7
PAHT 6.3
180B0029
180B1006
AISI 304
6.3
0.38
30
435
100
1450
0-4
0-58
4
58
1000
3000
5.5
8.6
1.8
2.8
2.2
3.0
12.4
9.2
2-50
37-122
0-50
32-122
76
4.4
9.7
PAHT 10 PAHT 12.5
180B0032
180B1007
AISI 304
10
0.61
30
435
140
2031
0-4
0-58
4
58
1000
2400
8.0
12.8
2.6
4.1
4.0
7.5
25.6
18.9
2-50
37-122
0-50
32-122
75
7.7
17.0
180B0033
180B1008
AISI 304
12.5
0.76
30
435
140
2031
0-4
0-58
4
58
1000
2400
10.5
16.5
3.4
5.3
5.5
7.5
7.7
17.0
31.7
23.4
2-50
37-122
0-50
32-122
75
PA, 1m
] values are calculated.
Measured at max pressure and rpm for a motor pump unit.
4
521B1247 / DKCFN.PD.012.M1.02 / 05.2013
Data sheet PAHT 2-308 and PAHT G 2-308 pumps
4.2 PAHT 20-32
Pump size
Code number PAHT
Code number PAHT G
Housing material
Geometric displacement
cm³/rpm in³/rpm
PAHT 20 PAHT 25 PAHT 32
180B0019 180B0020 180B0021
180B1009 180B1010 180B1011
AISI 316 or higher
AISI 316 or higher
AISI 316 or higher
20
1.22
25
1.53
32
1.95
Pressure
Min. outlet pressure
Max. outlet pressure, continuous
Inlet pressure, continuous
Max. inlet pressure, peak barg psig barg psig barg psig barg psig
30
435
80
1160
3-6
43-87
15
218
Speed
Min. speed, continuous rpm 700
Max. speed, continuous rpm 2400
Typical flow - Flow curves available in item 5
l/min 17.7
1000 rpm at max pressure
1500 rpm at max pressure l/min 27.7
5.7
1200 rpm at max. pressure gpm
1800 rpm at max. pressure gpm
Typical motor size
kW 1500 rpm at max. pressure
1800 rpm at max. pressure hp
9.0
5.5
7.5
30
435
160
2321
3-6
43-87
15
218
700
2400
20.9
33.4
6.8
10.8
11.0
20.0
30
435
160
2321
3-6
43-87
15
218
700
2400
29.0
45.0
9.4
14.3
15.0
20.0
Torque at max. outlet pressure
Media temperature
Ambient temperature
Nm lbf-ft
°C
°F
°C
°F dB(A)
21.0
15.5
2-50
37-122
0-50
32-122
79
69.2
51.1
2-50
37-122
0-50
32-122
79
89.0
65.7
2-50
37-122
0-50
32-122
79
Sound pressure level*
Weight
kg lb
19
42
19
42
19
42
Measurements according to EN ISO 3744: 2010 / dB(A) [L
PA, 1m
Measured at max pressure and rpm for a motor pump unit.
] values are calculated.
Data sheet PAHT 2-308 and PAHT G 2-308 pumps
4.3 PAHT 50-90
Pump size
Code number PAHT
Code number PAHT G
Housing material
Geometric displacement
cm³/rpm in³/rpm
PAHT 50 PAHT 63 PAHT 70 PAHT 80 PAHT 90
180B0085 180B0086 180B0087 180B0088 180B0089
180B1012 180B1013 180B1014 180B1015 180B1016
AISI 316 or higher
AISI 316 or higher
AISI 316 or higher
AISI 316 or higher
AISI 316 or higher
50
3.05
63
3.84
70
4.27
80
4.88
90
5.49
Pressure
Min. outlet pressure
Max. outlet pressure, continuous
Inlet pressure, continuous
Max. inlet pressure, peak barg psig barg psig barg psig barg psig
30
435
80
1160
3-6
43-87
15
218
Speed
Min. speed, continuous rpm 700
Max. speed, continuous rpm 1800
Typical flow - Flow curves available in item 5
l/min 43.7
1000 rpm at max. pressure
1500 rpm at max. pressure l/min 68.7
14.2
1200 rpm at max. pressure gpm
1800 rpm at max. pressure gpm
Typical motor size
kW 1500 rpm at max. pressure
1800 rpm at max. pressure hp
22.1
11
20
30
435
160
2321
3-6
43-87
15
218
700
1800
51.6
83.1
17.0
27.0
30
50
30
435
160
2321
3-6
43-87
15
218
700
1800
57.2
92.2
18.8
30.7
30
50
30
435
160
2321
3-6
43-87
15
218
700
1800
69.2
109.2
22.5
35.2
37
60
30
435
160
2321
3-6
43-87
15
218
700
1800
79.3
124.3
25.7
40.0
45
75
Torque at max. outlet pressure
Media temperature
Ambient temperature
Nm lbf-ft
°C
°F
°C
°F dB(A)
68.5
50.6
2-50
37-122
0-50
32-122
80
172.6
127.4
2-50
37-122
0-50
32-122
80
191.8
141.5
2-50
37-122
0-50
32-122
80
219.8
162.2
2-50
37-122
0-50
32-122
80
246.6
182.0
2-50
37-122
0-50
32-122
81
Sound pressure level*
Weight
kg lb
34
75
34
75
34
75
34
75
34
75
PA, 1m
] values are calculated.
Measured at max pressure and rpm for a motor pump unit.
Data sheet PAHT 2-308 and PAHT G 2-308 pumps
4.3 PAHT 50-90
Pump size
Code number PAHT
Code number PAHT G
Housing material
Geometric displacement
cm³/rpm in³/rpm
PAHT 50 PAHT 63 PAHT 70 PAHT 80 PAHT 90
180B0085 180B0086 180B0087 180B0088 180B0089
180B1012 180B1013 180B1014 180B1015 180B1016
AISI 316 or higher
AISI 316 or higher
AISI 316 or higher
AISI 316 or higher
AISI 316 or higher
50
3.05
63
3.84
70
4.27
80
4.88
90
5.49
Pressure
Min. outlet pressure
Max. outlet pressure, continuous
Inlet pressure, continuous
Max. inlet pressure, peak barg psig barg psig barg psig barg psig
30
435
80
1160
3-6
43-87
15
218
Speed
Min. speed, continuous rpm 700
Max. speed, continuous rpm 1800
Typical flow - Flow curves available in item 5
l/min 43.7
1000 rpm at max. pressure
1500 rpm at max. pressure l/min 68.7
14.2
1200 rpm at max. pressure gpm
1800 rpm at max. pressure gpm
Typical motor size
kW 1500 rpm at max. pressure
1800 rpm at max. pressure hp
22.1
11
20
30
435
160
2321
3-6
43-87
15
218
700
1800
51.6
83.1
17.0
27.0
30
50
30
435
160
2321
3-6
43-87
15
218
700
1800
57.2
92.2
18.8
30.7
30
50
30
435
160
2321
3-6
43-87
15
218
700
1800
69.2
109.2
22.5
35.2
37
60
30
435
160
2321
3-6
43-87
15
218
700
1800
79.3
124.3
25.7
40.0
45
75
Torque at max. outlet pressure
Media temperature
Ambient temperature
Nm lbf-ft
°C
°F
°C
°F dB(A)
68.5
50.6
2-50
37-122
0-50
32-122
80
172.6
127.4
2-50
37-122
0-50
32-122
80
191.8
141.5
2-50
37-122
0-50
32-122
80
219.8
162.2
2-50
37-122
0-50
32-122
80
246.6
182.0
2-50
37-122
0-50
32-122
81
Sound pressure level*
Weight
kg lb
34
75
34
75
34
75
34
75
34
75
PA, 1m
] values are calculated.
Measured at max pressure and rpm for a motor pump unit.
6
521B1247 / DKCFN.PD.012.M1.02 / 05.2013
Data sheet PAHT 2-308 and PAHT G 2-308 pumps
4.4 PAHT 256-308
Pump size
Code number PAHT
Code number PAHT G
Housing material
Geometric displacement
cm³/rpm in³/rpm
PAHT 256 PAHT 308
180B1001 180B1002
180B6090 180B6091
AISI 316 or higher
AISI 316 or higher
256
15.6
308
18.8
Pressure
Min. outlet pressure
Max. outlet pressure, continuous
Inlet pressure, continuous
Max inlet pressure, peak barg psig barg psig barg psig barg psig
30
435
120
1740
3-6
43-87
15
218
Speed
Min. speed, continuous rpm 450
Max. speed, continuous rpm 1250
Typical flow - Flow curves available in item 5
l/min 78 450 rpm at max. pressure
1250 rpm at max. pressure l/min 282
20.6
450 rpm at max. pressure gpm
1250 rpm at max. pressure gpm
Typical motor size
kW 1000 rpm at max. pressure
1200 rpm at max. pressure hp
74.5
55
100
30
435
120
1740
3-6
43-87
15
218
450
1250
92
338
25.0
89.3
75
125
Torque at max. outlet pressure
Media temperature
Ambient temperature
Nm lbf-ft
°C
°F
°C
°F dB(A)
549.6
405.6
2-50
37-122
0-50
32-122
82
661.3
448.0
2-50
37-122
0-50
32-122
87
Sound pressure level*
Weight
kg lb
105
231
105
231
Measurements according to EN ISO 3744: 2010 / dB(A) [L
PA, 1m
Measured at max pressure and rpm for a motor pump unit.
] values are calculated.
Data sheet
5. Flow
3.5
3
3.0
2,5
2.5
2
2.0
1,5
1.5
1
1.0
0,5
0.5
0
0
0
5
5
4,5
4.5
4
4.0
3,5
14
12
12
10
10
8
8
6
8
6
4
6
4
2
4
2
0
0
2
0
PAHT 2-308 and PAHT G 2-308 pumps
The flow (Q eff
) at less than max. pressure (p max
) can be calculated with the following equation:
Q eff
= Q
(th)
– [(Q
(th)
– Q (p max
)) x (p / p max
)]
Q
Q (p p p:
V: n:
(th) max
: max
Theoretical flow (l/min)
): see 4.1-4.4
: Max pressure (bar)
Pressure (bar)
Displacement (ccm/rev.)
Motor speed (rpm)
The theoretical flow can be calculated with the following equation:
Q
(th)
=
V x n
1000
At zero pressure the true flow equals the theoretical flow Q
(th)
.
5.1 PAHT 2-6.3 flow curves at max pressure
Flow curve @ max pressure PAHT 2 - 6.3
Flow curve @ max pressure PAHT 2 - 6.3
PAHT 6.3
PAHT 4
PAHT 3.2
PAHT 2 rpm
rpm
Flow curve @ max pressure PAHT 2 - 6.3
Flow curve @ max pressure PAHT 2 - 6.3
PAHT 6.3
PAHT 4
PAHT 3.2
PAHT 2 rpm
Data sheet
5. Flow
8
3.5
3
3.0
2,5
2.5
2
2.0
1,5
1.5
1
1.0
0,5
0.5
0
0
0
5
5
4,5
4.5
4
4.0
3,5
14
12
12
10
10
8
8
6
8
6
4
6
4
2
4
2
0
0
2
0
PAHT 2-308 and PAHT G 2-308 pumps
The flow (Q eff
) at less than max. pressure (p max
) can be calculated with the following equation:
Q eff
= Q
(th)
– [(Q
(th)
– Q (p max
)) x (p / p max
)]
Q
(th)
Q (p
: max
Theoretical flow (l/min)
): see 4.1-4.4
p max p:
V: n:
: Max pressure (bar)
Pressure (bar)
Displacement (ccm/rev.)
Motor speed (rpm)
The theoretical flow can be calculated with the following equation:
Q
(th)
=
V x n
1000
At zero pressure the true flow equals the theoretical flow Q
(th)
.
5.1 PAHT 2-6.3 flow curves at max pressure
Flow curve @ max pressure PAHT 2 - 6.3
Flow curve @ max pressure PAHT 2 - 6.3
PAHT 6.3
PAHT 4
PAHT 3.2
PAHT 2 rpm
rpm
Flow curve @ max pressure PAHT 2 - 6.3
Flow curve @ max pressure PAHT 2 - 6.3
PAHT 6.3
PAHT 4
PAHT 3.2
PAHT 2 rpm
521B1247 / DKCFN.PD.012.M1.02 / 05.2013
Data sheet PAHT 2-308 and PAHT G 2-308 pumps
8
8
7
7
6
6
5
5
4
4
3
3
2
2
1
1
0
0
5.2 PAHT 10-12.5 flow curves at max pressure
Flow curve @ max pressure PAHT 10 - 12.5
Flow curve @ max pressure PAHT 10 - 12.5
12
12
8
8
4
4
0
0
20
20
16
16
32
32
28
28
24
24
rpm
RPM
Flow curve @ max pressure PAHT 10 - 12.5
Flow curve @ max pressure PAHT 10 - 12.5
rpm
PAHT 12.5
PAHT 10
PAHT 12.5
PAHT 10
Data sheet
20
18
16
14
12
10
8
8
6
4
2
2
0
0
PAHT 2-308 and PAHT G 2-308 pumps
5.3 PAHT 20-32 flow curves at max pressure
Flow curve @ max pressure PAHT 20 - 32
80
70
60
50
40
30
20
10
0
PAHT 32
PAHT 25
PAHT 20
PAHT 32
PAHT 25
PAHT 20 rpm
Data sheet
20
18
16
14
12
10
8
8
6
4
2
2
0
0
PAHT 2-308 and PAHT G 2-308 pumps
5.3 PAHT 20-32 flow curves at max pressure
Flow curve @ max pressure PAHT 20 - 32
80
70
60
50
40
30
20
10
0
PAHT 32
PAHT 25
PAHT 20
PAHT 32
PAHT 25
PAHT 20 rpm
Data sheet
45
35
35 35
30
30 30
25
25 25
20
20 20
20
15
15
15
10
10
10
10
5
5
5
0
0
0
PAHT 2-308 and PAHT G 2-308 pumps
5.4 PAHT 50-90 flow curves at max pressure
160
160
160
140
140
140
120
120
100
100
100
80
80 80
80
60
60 60
60
40
40
20
20
0
0
0
0
rpm
PAHT 90
PAHT 80
PAHT 70
PAHT 63
PAHT 50
PAHT 90
PAHT 80
PAHT 70
PAHT 63
PAHT 50
[L/min]
10
521B1247 / DKCFN.PD.012.M1.02 / 05.2013
Data sheet PAHT 2-308 and PAHT G 2-308 pumps
5.5 PAHT 256-308 flow curves at max pressure
400
350
300
250
200
150
100
50
0
45
0
50
0
55
0
60
0
65
0
70
0
75
0
80
0
rpm
85
0
90
0
95
0
10
00
105
0
11
00
11
50
12
00
12
50
PAHT 308
PAHT 256
60
50
40
30
100
90
80
70
20
10
0
45
0
50
0
55
0
60
0
65
0
70
0
75
0
80
0
rpm
85
0
90
0
95
0
10
00
105
0
11
00
11
50
12
00
12
50
PAHT 308
PAHT 256
Data sheet PAHT 2-308 and PAHT G 2-308 pumps
5.5 PAHT 256-308 flow curves at max pressure
400
350
300
250
200
150
100
50
0
45
0
50
0
55
0
60
0
65
0
70
0
75
0
80
0
rpm
85
0
90
0
95
0
10
00
105
0
11
00
11
50
12
00
12
50
PAHT 308
PAHT 256
60
50
40
30
100
90
80
70
20
10
0
45
0
50
0
55
0
60
0
65
0
70
0
75
0
80
0
rpm
85
0
90
0
95
0
10
00
105
0
11
00
11
50
12
00
12
50
PAHT 308
PAHT 256
Data sheet
6. Motor requirements
PAHT 2-308 and PAHT G 2-308 pumps
The required motor power can be calculated by using the following equation:
P = n x V x p
600.000 x η
P: Power (kW)
M: Torque (Nm)
η: Mechanical efficiency p: Pressure (bar) n: Motor speed (rpm)
V: Displacement (ccm/rev.)
From the flow curves in item 5, you can determine the rpm of the pump at the desired flow.
The required torque is calculated as follows:
M =
V x p
62.8 x η
To determine the correct motor size, both the power and torque requirement must be verified.
The mechanical efficiency of the pump, at max pressure, is as follows:
PAHT 2, 3.2, 4, 6.3
PAHT 10, 12.5
PAHT 20, 25, 32, 50, 63, 70, 80, 90
PAHT 256, 308
0.8
0.9
0.95
0.95
12
521B1247 / DKCFN.PD.012.M1.02 / 05.2013
Data sheet
7. Installation
PAHT 2-308 and PAHT G 2-308 pumps
See the figure below for instructions on how to mount the pump and connect it to an electric motor or combustion engine.
A B C D
A: Pump
B: Bell housing
C: Coupling
D: Motor
If alternative mounting is required, please contact your Danfoss sales representative for further information.
Note: Do not add any axial or radial loads to the pump shaft.
7.1 Filtration
Proper filtration is crucial for the performance, maintenance and warranty of your pump.
Protect your pump, and the application in which it is installed, by always ensuring that all filtration specifications are met, and by always changing filter cartridges according to schedule.
Since water has very low viscosity, Danfoss PAHT pumps have been designed with very narrow clearances in order to control internal leakage rates and improve component performance. To
minimize wear on the pump, it is therefore essential to filter inlet water properly.
The main filter must have a filtration efficiency of 99.98% at 10 μm. We strongly recommend that you always use precision depth filter cartridges rated 10 μm abs. β
10
≥ 5000.
Please note that we do not recommend bag
filters or string-wound filter cartridges, which typically have only 50% filtration efficiency. This means that out of 100,000 particles that enter such filters, 50,000 particles pass right through them; compare this to precision depth filters that are 99.98% efficient, and only allow 20 of the same 100,000 particles to pass through.
For more information on the importance of proper filtration, including explanation of filtration principles, definitions, and guidance on how to select the right filter for your pump, please consult our Filtration information and specifications (Danfoss document number
521B1009).
7.2 Noise
Since the pump unit is mounted on a frame, the overall noise level can only be determined for a complete system. To minimize vibrations and noise throughout the system, it is therefore very important to mount the pump unit correctly on a frame with dampers and to use flexible hoses rather than metal pipes where possible.
The noise level is influenced by:
•
Pump speed:
High rpm makes more fluid/structure-
•
borne pulsations/vibrations than low rpm.
Discharge pressure:
High pressure makes more noise than low pressure.
•
•
•
Pump mounting:
Rigid mounting makes more noise than flexible mounting because of structureborne vibrations. Be sure to use dampers when mounting.
Connections to pump:
Pipes connected directly to the pump make more noise than flexible hoses because of structure-borne vibrations.
Variable frequency drives (VFDs):
Motors regulated by VFDs can produce more noise if the VFD does not have the right settings.
Data sheet
7. Installation
14
PAHT 2-308 and PAHT G 2-308 pumps
See the figure below for instructions on how to mount the pump and connect it to an electric motor or combustion engine.
Data sheet
A B C D
A: Pump
B: Bell housing
C: Coupling
D: Motor
If alternative mounting is required, please contact your Danfoss sales representative for further information.
Note: Do not add any axial or radial loads to the pump shaft.
7.1 Filtration
Proper filtration is crucial for the performance, maintenance and warranty of your pump.
Protect your pump, and the application in which it is installed, by always ensuring that all filtration specifications are met, and by always changing filter cartridges according to schedule.
Since water has very low viscosity, Danfoss PAHT pumps have been designed with very narrow clearances in order to control internal leakage rates and improve component performance. To
minimize wear on the pump, it is therefore essential to filter inlet water properly.
The main filter must have a filtration efficiency of 99.98% at 10 μm. We strongly recommend that you always use precision depth filter cartridges rated 10 μm abs. β
10
≥ 5000.
Please note that we do not recommend bag
filters or string-wound filter cartridges, which typically have only 50% filtration efficiency. This means that out of 100,000 particles that enter such filters, 50,000 particles pass right through them; compare this to precision depth filters that are 99.98% efficient, and only allow 20 of the same 100,000 particles to pass through.
For more information on the importance of proper filtration, including explanation of filtration principles, definitions, and guidance on how to select the right filter for your pump, please consult our Filtration information and specifications (Danfoss document number
521B1009).
7.2 Noise
Since the pump unit is mounted on a frame, the overall noise level can only be determined for a complete system. To minimize vibrations and noise throughout the system, it is therefore very important to mount the pump unit correctly on a frame with dampers and to use flexible hoses rather than metal pipes where possible.
The noise level is influenced by:
•
Pump speed:
High rpm makes more fluid/structure-
•
borne pulsations/vibrations than low rpm.
Discharge pressure:
High pressure makes more noise than low pressure.
•
•
•
Pump mounting:
Rigid mounting makes more noise than flexible mounting because of structureborne vibrations. Be sure to use dampers when mounting.
Connections to pump:
Pipes connected directly to the pump make more noise than flexible hoses because of structure-borne vibrations.
Variable frequency drives (VFDs):
Motors regulated by VFDs can produce more noise if the VFD does not have the right settings.
Reservoir
2
521B1247 / DKCFN.PD.012.M1.02 / 05.2013
4
PI
6
5
6
PI
7
PAHT 2-308 and PAHT G 2-308 pumps
7.3 Open-system design
Inlet line:
Dimension the inlet line to obtain minimum pressure loss (large flow, minimum pipe length, minimum number of bends/ connections, and fittings with small pressure losses).
Inlet filter:
Install the inlet filter (1) in front of the PAHT pump (2). Please consult the Danfoss filter data sheet for guidance on how to select the right filter.
C
Monitoring pressure switch:
Install the monitoring pressure switch (3) between the filter and the pump inlet. Set the minimum inlet pressure according to specifications described in item 4, technical data. The monitoring pressure switch stops the pump if inlet pressure is lower than the set minimum pressure.
D
Monitoring temperature switch:
Install the monitoring temperature switch
(4) between the filter and the pump, on either side of the monitoring pressure switch. Set the temperature value according to technical data, item 4. The monitoring temperature switch stops the pump if inlet temperature is higher than the set value.
Hoses:
Always use flexible hoses (5) to minimize
F
vibrations and noise.
Inlet pressure:
In order to eliminate the risk of cavitation and other pump damage, pump inlet pressure must be maintained according to specifications described in item 4, technical data.
G
Non-return valve (6):
Should be installed after the outlet to prevent pump backspin, which may ruin the pump.
H
Pressure relief valve:
As the Danfoss PAHT pump begins to create pressure and flow immediately after start-up regardless of any counter pressure, a pressure relief valve (7) should be installed to prevent system damage.
Note: If a non-return valve is mounted in the inlet line, a low-pressure relief valve is also required between the non-return valve and the pump to protect against high-pressure peaks.
4
2
1
PI
PI
System
5
6
3
5
7
System
1
9
10
8
3
Data sheet PAHT 2-308 and PAHT G 2-308 pumps
Closed-system design (not applicable for PAHT/PAHT G 256-308)
Inlet line:
Dimension the inlet line to obtain minimum pressure loss (large flow, minimum pipe length, minimum number of bends/ connections, and fittings with small pressure losses).
Inlet filter:
Install the inlet filter (1) in front of the tank
(2). Please consult the Danfoss filter data sheet for guidance on how to select the right filter.
C
Monitoring pressure switch:
Install the monitoring pressure switch (3) in front of the filter (1). Set the maximum inlet pressure to 2 bar (29.0 psi). The monitoring pressure switch will stop the pump (5) if inlet pressure is higher than 2 bar (29.0 psi), indicating that the filter element must be changed.
Monitoring temperature switch:
Install the monitoring temperature switch
(4) in the tank. Set the temperature value according to technical data, item 4. The monitoring temperature stops the pump if inlet temperature is higher than the set value.
Hoses:
Always use flexible hoses (6) to minimize vibrations and noise.
F
Inlet pressure:
In order to eliminate the risk of cavitation and other pump damage, pump inlet pressure must be maintained according to specifications described in item 4, technical data.
Non-return valve (7):
Should be installed after the outlet to prevent pump backspin, which may ruin the pump.
1
Pressure relief valve:
As the Danfoss PAHT pump begins to create pressure and flow immediately after start-up regardless of any counter pressure, a pressure relief valve (8) should be installed to prevent system damage.
System water filling:
To ensure proper filtration of new water
(10) supplied to the system, always use the filling valve (9).
J Minimum level switch:
Install the minimum level switch (11) above the outlet of the reservoir. The level switch must stop the pump if the water in the reservoir is below the switch, which indicates that the reservoir is empty.
PI
3
4
2
11 4
Reservoir
6
5
6 7
PI PI
5
2
5
PI
7
6
System
System
1
9
10
3
8
Data sheet PAHT 2-308 and PAHT G 2-308 pumps
Closed-system design (not applicable for PAHT/PAHT G 256-308)
Inlet line:
Dimension the inlet line to obtain minimum pressure loss (large flow, minimum pipe length, minimum number of bends/ connections, and fittings with small pressure losses).
Inlet filter:
Install the inlet filter (1) in front of the tank
(2). Please consult the Danfoss filter data sheet for guidance on how to select the right filter.
C
Monitoring pressure switch:
Install the monitoring pressure switch (3) in front of the filter (1). Set the maximum inlet pressure to 2 bar (29.0 psi). The monitoring pressure switch will stop the pump (5) if inlet pressure is higher than 2 bar (29.0 psi), indicating that the filter element must be changed.
Monitoring temperature switch:
Install the monitoring temperature switch
(4) in the tank. Set the temperature value according to technical data, item 4. The monitoring temperature stops the pump if inlet temperature is higher than the set value.
Hoses:
Always use flexible hoses (6) to minimize vibrations and noise.
F
Inlet pressure:
In order to eliminate the risk of cavitation and other pump damage, pump inlet pressure must be maintained according to specifications described in item 4, technical data.
Non-return valve (7):
Should be installed after the outlet to prevent pump backspin, which may ruin the pump.
1
Pressure relief valve:
As the Danfoss PAHT pump begins to create pressure and flow immediately after start-up regardless of any counter pressure, a pressure relief valve (8) should be installed to prevent system damage.
System water filling:
To ensure proper filtration of new water
(10) supplied to the system, always use the filling valve (9).
J Minimum level switch:
Install the minimum level switch (11) above the outlet of the reservoir. The level switch must stop the pump if the water in the reservoir is below the switch, which indicates that the reservoir is empty.
PI
3
4
2
11 4
Reservoir
6
5
6 7
PI PI
5
2
5
PI
Data sheet
Dimensions and connections
7
6
System
System
1
9
10
3
8
PAHT 2-308 and PAHT G 2-308 pumps
8.1 PAHT 2-6.3
Bleeding port
Description
Parallel key,
DIN 6885
Bleeding
Inlet port
Outlet port
Mounting flange
PAHT 2-6.3
mm 5 × 5 × 20
in
0.20 × 0.20 × 0.79
M6; hex key 4 mm
G ½” BSPP; depth 15 mm
G ¼” BSPP; depth 11 mm
ISO 3019-2 63A2HW
Outlet
Inlet
Bleeding port
16
521B1247 / DKCFN.PD.012.M1.02 / 05.2013
Data sheet PAHT 2-308 and PAHT G 2-308 pumps
8.2 PAHT 10-12.5
Outlet
Bleeding port
Inlet
Description
Parallel key,
DIN 6885
Bleeding
Inlet port
Outlet port
Mounting flange
PAHT 10-12.5
mm 5 × 5 × 20
in
0.20 × 0.20 × 0.79
G ¼” BSPP; hex key 6 mm
G ¾” BSPP; depth 17 mm
G
⅜”
BSPP
; depth 15 mm
ISO 3019-2 63A2HW
Bleeding port
Data sheet PAHT 2-308 and PAHT G 2-308 pumps
8.2 PAHT 10-12.5
Outlet
Bleeding port
Inlet
18
Description
Parallel key,
DIN 6885
Bleeding
Inlet port
Outlet port
Mounting flange
PAHT 10-12.5
mm 5 × 5 × 20
in
0.20 × 0.20 × 0.79
G ¼” BSPP; hex key 6 mm
G ¾” BSPP; depth 17 mm
G
⅜”
BSPP
; depth 15 mm
ISO 3019-2 63A2HW
521B1247 / DKCFN.PD.012.M1.02 / 05.2013
Bleeding port
Data sheet PAHT 2-308 and PAHT G 2-308 pumps
8.3 PAHT 20-32
Outlet
Bleeding port
Gauge port inlet
Inlet
Description
Parallel key,
DIN 6885
Bleeding
Inlet port
Outlet port
Gauge ports
Mounting flange
PAHT 20-32
mm 8 × 7 × 32
in
0.31 × 0.28 × 1.26
M6; hex key 5 mm
G 1” BSPP; depth 16 mm
G ¾
”
BSPP
; depth 18 mm
G ¼” BSPP; depth 15 mm
ISO 3019-2 100A2HW
Data sheet PAHT 2-308 and PAHT G 2-308 pumps
8.4 PAHT 50-90
Outlet
Bleeding port
Gauge port outlet
Gauge port inlet
Inlet
Description
Parallel key,
DIN 6885
Bleeding
Inlet port
Outlet port
Gauge ports
Mounting flange
PAHT 50-90
mm 10 × 8 × 45
in
0.39 × 0.31 × 1.77
M6; hex key 5 mm
G 1½” BSPP; depth 24 mm
G 1” BSPP; depth 24 mm
G ¼” BSPP; depth 15 mm
ISO 3019-2 125A2HW
Data sheet PAHT 2-308 and PAHT G 2-308 pumps
8.4 PAHT 50-90
Outlet
Bleeding port
Gauge port outlet
Gauge port inlet
Inlet
Data sheet PAHT 2-308 and PAHT G 2-308 pumps
8.5 PAHT 256-308
Bleeding port
20
Description
Parallel key,
DIN 6885
Bleeding
Inlet port
Outlet port
Gauge ports
Mounting flange
PAHT 50-90
mm 10 × 8 × 45
in
0.39 × 0.31 × 1.77
M6; hex key 5 mm
G 1½” BSPP; depth 24 mm
G 1” BSPP; depth 24 mm
G ¼” BSPP; depth 15 mm
ISO 3019-2 125A2HW
521B1247 / DKCFN.PD.012.M1.02 / 05.2013
Description
Parallel key,
DIN 6885
Bleeding
Inlet port
Outlet port
Mounting flange
PAHT 256-308
mm 12 × 8 × 70
in
0.47 × 0.31 × 2.76
M6; hex key 5 mm
M60 x 1.5; depth 24 mm
M60 x 1.5; depth 24 mm
ISO 3019-2 180B4TW
Data sheet
9. Service
PAHT 2-308 and PAHT G 2-308 pumps
Danfoss PAHT pumps are designed for long periods of service-free operation to provide customers with low maintenance and life cycle costs. Provided that the pump is installed and operated according to Danfoss specifications,
Danfoss PAHT pumps typically run 8,000 hours between service routines. However, the service schedule for your Danfoss PAHT pump may vary according to the application and other factors.
The life of a pump may be greatly shortened if
Danfoss recommendations concerning system design and operation are not followed.
In our experience, poor filtration is the number one cause of pump damage.
•
•
•
•
Other factors that affect pump performance and lifetime include:
running the pump at speeds outside specifications
supplying the pump with water at temperatures higher than recommended
running the pump at inlet pressures outside specifications
running the pump at outlet pressures outside the specifications.
We recommend that you inspect your pump after 8,000 hours of operation even if it is running without any noticeable problems.
Replace any worn parts as necessary, including pistons and shaft seals, to keep your pump running efficiently and to prevent breakdown. If worn parts are not replaced, then our guidelines recommend more frequent inspection.
Danfoss A/S
High Pressure Pumps
DK-6430 Nordborg
Denmark
Danfoss can accept no responsibility for possible errors in catalogues, brochures and other printed material. Danfoss reserves the right to alter its products without notice.
This also applies to products already on order provided that such alterations can be made without subsequential changes being necessary in specifications already agreed.
All trademarks in this material are property of the respective companies. Danfoss and the Danfoss logotype are trademarks of Danfoss A/S. All rights reserved.
Data sheet
9. Service
PAHT 2-308 and PAHT G 2-308 pumps
Danfoss PAHT pumps are designed for long periods of service-free operation to provide customers with low maintenance and life cycle costs. Provided that the pump is installed and operated according to Danfoss specifications,
Danfoss PAHT pumps typically run 8,000 hours between service routines. However, the service schedule for your Danfoss PAHT pump may vary according to the application and other factors.
The life of a pump may be greatly shortened if
Danfoss recommendations concerning system design and operation are not followed.
In our experience, poor filtration is the number one cause of pump damage.
•
•
•
•
Other factors that affect pump performance and lifetime include:
running the pump at speeds outside specifications
supplying the pump with water at temperatures higher than recommended
running the pump at inlet pressures outside specifications
running the pump at outlet pressures outside the specifications.
We recommend that you inspect your pump after 8,000 hours of operation even if it is running without any noticeable problems.
Replace any worn parts as necessary, including pistons and shaft seals, to keep your pump running efficiently and to prevent breakdown. If worn parts are not replaced, then our guidelines recommend more frequent inspection.
MAKING MODERN LIVING POSSIBLE
2. Pump instruction PAH/
PAHT/PAHT G 2-12.5
Instruction
PAH / PAHT / PAHT G 2-6.3 pumps/
PAH / PAHT / PAHT G 10-12.5 pumps
Danfoss A/S
High Pressure Pumps
DK-6430 Nordborg
Denmark
Danfoss can accept no responsibility for possible errors in catalogues, brochures and other printed material. Danfoss reserves the right to alter its products without notice.
This also applies to products already on order provided that such alterations can be made without subsequential changes being necessary in specifications already agreed.
All trademarks in this material are property of the respective companies. Danfoss and the Danfoss logotype are trademarks of Danfoss A/S. All rights reserved.
22
521B1247 / DKCFN.PD.012.M1.02 / 05.2013
danfoss.high-pressurepumps.com
Instruction
Table of Contents
Pump instruction
PAH/PAHT/PAHT G 2-12.5
(180R9277)
Pump instruction PAH / PAHT / PAHT G 2-12.5
1. Identification
2.
2.1
2.2
2.3
2.4
System design
Closed-system design
Open-system design
General guidelines for calculation of pressure losses
General comments on
3.
3.1
3.2
3.3
3.4
3.5
Mounting
Direction of rotation
Orientation
Protection from too high pressures
Connections
4. Initial start-up
5.
5.1
5.2
5.3
5.4
5.5
5.6
Operation
Water quality
Temperature
Pressure
Dry running
Disconnection
Storage
Water hydraulic systems, water recirculated
5.6.2
Open-ended systems with direct water supply
6 Service
7.
7.1
7.2
7.3
General information
Inspection of pump parts
How to inspect the pump
1. Identification
Instruction
Table of Contents
Pump instruction
PAH/PAHT/PAHT G 2-12.5
(180R9277)
Pump instruction PAH / PAHT / PAHT G 2-12.5
1. Identification
2.
2.1
2.2
2.3
2.4
System design
Closed-system design
Open-system design
General guidelines for calculation of pressure losses
General comments on
3.
3.1
3.2
3.3
3.4
3.5
Mounting
Direction of rotation
Orientation
Protection from too high pressures
Connections
4. Initial start-up
5.
5.1
5.2
5.3
5.4
5.5
5.6
Operation
Water quality
Temperature
Pressure
Dry running
Disconnection
Storage
Water hydraulic systems, water recirculated
5.6.2
Open-ended systems with direct water supply
6 Service
7.
7.1
7.2
7.3
General information
Inspection of pump parts
How to inspect the pump
1. Identification
Instruction
2. System design
Pump instruction PAH / PAHT / PAHT G 2-12.5
2.1 Closed-system design
Inlet line:
Dimension the inlet line to obtain minimum pressure loss (large flow, minimum pipe length, minimum number of bends/ connections, and fittings with small pressure losses).
Inlet filter:
Install the inlet filter (1) in front of the tank
(2). Please consult the Danfoss filter data sheet for guidance on how to select the right filter.
C
Monitoring pressure switch:
Install the monitoring pressure switch (3) in front of the filter (1). Set the maximum inlet pressure to 2 barg (29.0 psig). The monitoring pressure switch will stop the pump (5) if inlet pressure is higher than 2 barg
(29.0 psig), indicating that the filter element must be changed.
Monitoring temperature switch:
Install the monitoring temperature switch
(4) in the tank. Set the temperature value according to technical data, item 4. The monitoring temperature stops the pump if inlet temperature is higher than the set value.
E
Always use flexible hoses (6) to minimize vibrations and noise.
Inlet pressure:
In order to eliminate the risk of cavitation and other pump damage, pump inlet pressure must be maintained according to specifications described in item 4, technical data.
Non-return valve (7):
Should be installed after the outlet to prevent pump backspin, which may ruin the pump.
Pressure relief valve:
As the Danfoss PAHT pump begins to create pressure and flow immediately after start-up regardless of any counter pressure, a pressure relief valve (8) should be installed to prevent system damage.
System water filling:
To ensure proper filtration of new water
(10) supplied to the system, always use the filling valve (9).
J Minimum level switch:
Install the minimum level switch (11) above the outlet of the reservoir. The level switch must stop the pump if the water in the reservoir is below the switch, which indicates that the reservoir is empty.
PI
3
4
2
11 4
Reservoir
6
5
6 7
PI PI
5
2
5
PI
7
6
System
System
1
9
10
3
8
2
180R9277 / 521B1246 / DKCFN.PI.011.C1.02 / 05.2013
Instruction Pump instruction PAH / PAHT / PAHT G 2-12.5
2.2 Open-system design
Inlet line:
Dimension the inlet line to obtain minimum pressure loss (large flow, minimum pipe length, minimum number of bends/ connections, and fittings with small pressure losses).
Inlet filter:
Install the inlet filter (1) in front of the PAHT pump (2). Please consult the Danfoss filter data sheet for guidance on how to select the right filter.
C
Monitoring pressure switch:
Install the monitoring pressure switch (3) between the filter and the pump inlet. Set the minimum inlet pressure according to specifications described in item 4, technical data. The monitoring pressure switch stops the pump if inlet pressure is lower than the set minimum pressure.
D
Monitoring temperature switch:
Install the monitoring temperature switch
(4) between the filter and the pump, on either side of the monitoring pressure switch. Set the temperature value according to technical data, item 4. The monitoring temperature switch stops the pump if inlet temperature is higher than the set value.
Hoses:
Always use flexible hoses (5) to minimize
F
vibrations and noise.
Inlet pressure:
In order to eliminate the risk of cavitation and other pump damage, pump inlet pressure must be maintained according to specifications described in item 4, technical data.
G
Non-return valve (6):
Should be installed after the outlet to prevent pump backspin, which may ruin the pump.
H
Pressure relief valve:
As the Danfoss PAHT pump begins to create pressure and flow immediately after start-up regardless of any counter pressure, a pressure relief valve (7) should be installed to prevent system damage.
Note: If a non-return valve is mounted in the inlet line, a low-pressure relief valve is also required between the non-return valve and the pump to protect against high-pressure peaks.
4
2
1
PI
PI
System
5
6
3
5
7
11
2
Reservoir
4
PI
6
5
6
PI
7
System
1
9
10
8
3
11
2
4
Instruction Pump instruction PAH / PAHT / PAHT G 2-12.5
2.2 Open-system design
Inlet line:
Dimension the inlet line to obtain minimum pressure loss (large flow, minimum pipe length, minimum number of bends/ connections, and fittings with small pressure losses).
Inlet filter:
Install the inlet filter (1) in front of the PAHT pump (2). Please consult the Danfoss filter data sheet for guidance on how to select the right filter.
C
Monitoring pressure switch:
Install the monitoring pressure switch (3) between the filter and the pump inlet. Set the minimum inlet pressure according to specifications described in item 4, technical data. The monitoring pressure switch stops the pump if inlet pressure is lower than the set minimum pressure.
D
Monitoring temperature switch:
Install the monitoring temperature switch
(4) between the filter and the pump, on either side of the monitoring pressure switch. Set the temperature value according to technical data, item 4. The monitoring temperature switch stops the pump if inlet temperature is higher than the set value.
Hoses:
Always use flexible hoses (5) to minimize
F
vibrations and noise.
Inlet pressure:
In order to eliminate the risk of cavitation and other pump damage, pump inlet pressure must be maintained according to specifications described in item 4, technical data.
G
Non-return valve (6):
Should be installed after the outlet to prevent pump backspin, which may ruin the pump.
H
Pressure relief valve:
As the Danfoss PAHT pump begins to create pressure and flow immediately after start-up regardless of any counter pressure, a pressure relief valve (7) should be installed to prevent system damage.
Note: If a non-return valve is mounted in the inlet line, a low-pressure relief valve is also required between the non-return valve and the pump to protect against high-pressure peaks.
4
2
1
PI
PI
System
5
6
3
5
7
Instruction Pump instruction PAH / PAHT / PAHT G 2-12.5
General guidelines for calculation of pressure losses
The suction conditions can be optimized according to below guidelines.
In smooth pipes and hoses
In 90° bends
•
•
2.4 General comments on
Filtration
A good filtration is vital to ensure a long and trouble free life of the pump.
When selecting a filter or strainer, please note that filter materials should be compatible with water, i.e. should neither corrode or dissolve. Also be aware of the electrochemical series of the applied materials.
•
Main filter must have a fineness of 10 µm abs. β
10
≥ 5000.
The pressure loss across the filter should be monitored.
Please contact the Danfoss Sales Organization for further filter details.
Automatic pressure equalization between tank and surroundings must be ensured.
Inlet from the water supply (the return line) and inlet to the pump should be placed in opposite ends of the tank to calm and deaerate the water, and to ensure optimum opportunity for particles to settle.
Pump suction line should be placed above the tank bottom in order to prevent settled particles from being led into the pump.
Water tank
Must be made of corrosion-proof material such as stainless steel or plastic and must be sealed to prevent entrance of impurities from the environment.
Reservoir
1
PI
4
6
3
5
6 7
PI
180R9277 / 521B1246 / DKCFN.PI.011.C1.02 / 05.2013
System
9
10
8
Instruction Pump instruction PAH / PAHT / PAHT G 2-12.5
We recommend a separation (“wall”) to separate the inlet from the outlet end of the tank.
•
•
•
Monitoring
It is recommended to continuously monitor the following conditions:
Water level in the tank
Filter contamination
Pressure (inlet- and outlet side of the pump)
Building up the pump unit
3.1 Mounting
A: Elastic coupling
B: Bell housing
C: Motor shaft
If alternative mounting is desired, please contact the Danfoss Sales Organization.
Choose proper tolerances to ensure an easy mounting of the elastic coupling without use of tools.
Please take care to observe the recommended length tolerances of the chosen coupling, as an axial force on the pump shaft must be avoided.
3.2 Direction of rotation
Is indicated by means of an arrow at the label of the pump.
T = Inlet
P = Outlet
3.3 Orientation
The pump can be mounted/orientated in any direction.
Instruction Pump instruction PAH / PAHT / PAHT G 2-12.5
We recommend a separation (“wall”) to separate the inlet from the outlet end of the tank.
•
•
•
Monitoring
It is recommended to continuously monitor the following conditions:
Water level in the tank
Filter contamination
Pressure (inlet- and outlet side of the pump)
Instruction Pump instruction PAH / PAHT / PAHT G 2-12.5
3.4 Protection from too high pressures
The pump should be protected against too high pressure by means of a pressure relief valve or a bypass/unloading valve placed on the pressure side.
The valve should be placed as close to the pump as possible.
The opening characteristics of the valve must not result in peak pressures higher than 200 bar
(2,900 psi).
The valve outlet must not be connected directly to the pump suction line. It shall be connected directly to the tank.
Building up the pump unit
3.1 Mounting
A: Elastic coupling
B: Bell housing
C: Motor shaft
If alternative mounting is desired, please contact the Danfoss Sales Organization.
Choose proper tolerances to ensure an easy mounting of the elastic coupling without use of tools.
Please take care to observe the recommended length tolerances of the chosen coupling, as an axial force on the pump shaft must be avoided.
3.2 Direction of rotation
Is indicated by means of an arrow at the label of the pump.
T = Inlet
P = Outlet
6
3.3 Orientation
The pump can be mounted/orientated in any direction.
180R9277 / 521B1246 / DKCFN.PI.011.C1.02 / 05.2013
3.5 Connections
P: Pressure
T: Tank
C: Bleeding
D: Parallel key
5 x 5 x 20,
DIN 6885
Thread size
Max tighten torque
P
G 1⁄4 x 11
PAH / PAHT / PAHT G 2-6.3
T
G 1⁄2 x 15
C
M6; Allen key
4 mm
25 Nm 25 Nm 5 Nm
P
G 3⁄8 x 15
PAH / PAHT / PAHT G 10-12.5
T
G 3⁄4 X 17
C
G 1⁄4, NV6
14 deep
25 Nm 25 Nm 15 Nm
Recommended torque values refer to steel washers containing a rubber sealing element.
Instruction
4. Initial start-up
5. Operation
Pump instruction PAH / PAHT / PAHT G 2-12.5
Before start-up, loosen the top bleeding plug “C”.
When water appears from the bleeding plug, retighten the plug. With its inlet line connected to the water supply or the tank, the pump is now started with open outlet port.
At the initial start of the system, the pump should be run without pressure for about 5 minutes, thus removing possible impurities from pipes, hoses, etc. However, the system should be flushed before start-up.
Warning:
Make sure that the direction of rotation of the electric motor corresponds to the direction of rotation of the pump. Otherwise the pump will be damaged if a check valve is placed between pump and tank.
5.1 Water quality
Water of drinking water quality, confirming to the EEC directive 98/83/EC and without abrasive sediments. Please contact Danfoss sales organization in case of doubt.
5.2 Temperature
5.5 Disconnection
If the inlet line is disconnected from the water supply, the pump will be emptied of water through the disconnected inlet line.
When starting up again, follow the bleeding procedure described under section 4: Initial start up.
Fluid temperature
Ambient temperature
Storage temperature
Min. +2° C to max. +50° C
Min. 0° C to max. 50° C
Min. -40° C to max. +70° C
5.6 Storage
When preparing the pump for long-term storage or for temperatures below the freezing point, flush the pump with an anti-freeze medium type monopropylene glycol to prevent internal corrosion or frost in the pump. For further information on anti-freeze media, please contact the Danfoss Sales Organization.
In case of lower operating tempera tures, please contact the Danfoss Sales Organization.
5.3 Pressure
The inlet pressure must be between min. 0 barg/
0 psig and max. 4 barg/60 psig. The use of pump outside this range damage the pump.
Max. pressure on the pump’s outlet line should be limited at 140 barg (2,030 psig) continuously.
Short-term pressure peaks (e.g. in connection with closing of a valve) of up to 200 barg
(2,900 psig) are acceptable.
NB: The pump unit should include a pressure gauge on the high pressure side.
5.4 Dry running
When running, the pump must always be connected to the water supply in order to avoid damage if it should run dry.
In systems with water tank it is recommended to build in a level gauge in the tank to avoid the risk of running dry.
Recommended procedure
5.6.1 Water hydraulic systems, water recirculated
Disconnect the power pack from the system.
Empty the tank of water. Fill up the tank with anti-freeze medium to a level well above the suction line.
3. of minutes, in a closed loop system let the anti-freeze medium run back to tank through the pressure relief valve or the bypass valve.
4.
Empty the pump through the lower bleeding plug.
The pump is now protected against internal corrosion and frost.
Instruction
4. Initial start-up
5. Operation
8
Pump instruction PAH / PAHT / PAHT G 2-12.5
Before start-up, loosen the top bleeding plug “C”.
When water appears from the bleeding plug, retighten the plug. With its inlet line connected to the water supply or the tank, the pump is now started with open outlet port.
At the initial start of the system, the pump should be run without pressure for about 5 minutes, thus removing possible impurities from pipes, hoses, etc. However, the system should be flushed before start-up.
Warning:
Make sure that the direction of rotation of the electric motor corresponds to the direction of rotation of the pump. Otherwise the pump will be damaged if a check valve is placed between pump and tank.
5.1 Water quality
Water of drinking water quality, confirming to the EEC directive 98/83/EC and without abrasive sediments. Please contact Danfoss sales organization in case of doubt.
5.2 Temperature
5.5 Disconnection
If the inlet line is disconnected from the water supply, the pump will be emptied of water through the disconnected inlet line.
When starting up again, follow the bleeding procedure described under section 4: Initial start up.
Fluid temperature
Ambient temperature
Storage temperature
Min. +2° C to max. +50° C
Min. 0° C to max. 50° C
Min. -40° C to max. +70° C
5.6 Storage
When preparing the pump for long-term storage or for temperatures below the freezing point, flush the pump with an anti-freeze medium type monopropylene glycol to prevent internal corrosion or frost in the pump. For further information on anti-freeze media, please contact the Danfoss Sales Organization.
In case of lower operating tempera tures, please contact the Danfoss Sales Organization.
5.3 Pressure
The inlet pressure must be between min. 0 barg/
0 psig and max. 4 barg/60 psig. The use of pump outside this range damage the pump.
Max. pressure on the pump’s outlet line should be limited at 140 barg (2,030 psig) continuously.
Short-term pressure peaks (e.g. in connection with closing of a valve) of up to 200 barg
(2,900 psig) are acceptable.
NB: The pump unit should include a pressure gauge on the high pressure side.
5.4 Dry running
When running, the pump must always be connected to the water supply in order to avoid damage if it should run dry.
In systems with water tank it is recommended to build in a level gauge in the tank to avoid the risk of running dry.
Recommended procedure
5.6.1 Water hydraulic systems, water recirculated
Disconnect the power pack from the system.
Empty the tank of water. Fill up the tank with anti-freeze medium to a level well above the suction line.
3. of minutes, in a closed loop system let the anti-freeze medium run back to tank through the pressure relief valve or the bypass valve.
4.
Empty the pump through the lower bleeding plug.
The pump is now protected against internal corrosion and frost.
180R9277 / 521B1246 / DKCFN.PI.011.C1.02 / 05.2013
Instruction Pump instruction PAH / PAHT / PAHT G 2-12.5
5.6.2 Open-ended systems with water supply from tank.
Empty the tank of water and empty the pump housing through the lower bleeding plug. When the pump is empty, retighten the plug.
Through the upper bleeding plug, fill the pump housing with anti-freeze medium.
Pour anti-freeze medium into the tank.
Connect a hose to the outlet of the pump and lead the other end of the hose back to tank.
Quickly start and stop the pump. Make sure that the pump does not run dry.
The pump is now protected against internal corrosion and frost.
5.6.3 Open-ended systems with direct water supply.
1. Disconnect the water supply to the pump.
2. the pump housing of water and close it again.
3.
6 gal. of anti-freeze additive. Connect a hose to the inlet port of the pump and via another hose return the flow from the outlet port port to the tank with anti-freeze additives.
Quickly start and stop the pump. Make sure that the pump does not run dry.
The pump is now protected against internal corrosion and frost.
6. Service
The Danfoss PAHT/PAHT G pumps are designed for long periods of service-free operation to provide customers with low maintenance and life cycle costs. Provided that the pumps are installed and operated according to Danfoss specifications, the Danfoss PAHT/PAHT G pumps typically run 8,000 hours between service routines. However, the service schedule for your
PAHT/PAHT G pump may vary according to the application and other factors.
The life of a pump may be greatly shortened if
Danfoss recommendations concerning system design and operation are not followed.
In our experience, poor filtration is the number one cause of pump damage.
•
•
•
•
Other factors that affect pump performance and lifetime include:
running the pump at speeds outside specifications
supplying the pump with water at temperatures higher than recommended
running the pump at inlet pressures outside specifications
running the pump at outlet pressures outside the specifications.
Recommended service intervals
7.1 General information
This guideline provides information on the recommended service intervals for the PAHT/
PAHT G pumps. The recommendation is based upon good engineering practice and on experience gained from operation even under extreme conditions.
The recommendation is for guidance only.
7.2 Inspection of pump parts
Danfoss recommends to inspect the pumps after
8,000 hours. Typical signs of wear are seen on the contact/sliding surfaces in the pumps. If the pumps must run for additional 8,000 hours, the following parts will have to be inspected:
•
•
•
•
•
Pistons
Retainer plate, ball and bearing
Valve plate
Port plate
Sealings
If there are any wear marks on the parts they need to be replaced.
•
•
If service inspection due to the application is complicated, the plant operator can decide to extend the service interval by evaluating the following deviations:
•
Sound - does the pump have any unusual sounds?
Electric motor power consumption and speed compared with measurement made in the past.
Pressure/flow according to measurements made in the past?
We advise that the above mentioned parameter during the extended service interval is inspected for every 500-2,000 hours beyond the 8,000 hours. The pump must in any case be inspected after maximum 16,000 hours or 2 years.
7.3 How to inspect the pump
Service manuals are available on the internet www.danfoss.high-pressurepumps.com
Instruction Pump instruction PAH / PAHT / PAHT G 2-12.5
Danfoss A/S
High Pressure Pumps
DK-6430 Nordborg
Denmark
Danfoss can accept no responsibility for possible errors in catalogues, brochures and other printed material. Danfoss reserves the right to alter its products without notice.
This also applies to products already on order provided that such alterations can be made without subsequential changes being necessary in specifications already agreed.
All trademarks in this material are property of the respective companies. Danfoss and the Danfoss logotype are trademarks of Danfoss A/S. All rights reserved.
Instruction Pump instruction PAH / PAHT / PAHT G 2-12.5
Danfoss A/S
High Pressure Pumps
DK-6430 Nordborg
Denmark
Danfoss can accept no responsibility for possible errors in catalogues, brochures and other printed material. Danfoss reserves the right to alter its products without notice.
This also applies to products already on order provided that such alterations can be made without subsequential changes being necessary in specifications already agreed.
All trademarks in this material are property of the respective companies. Danfoss and the Danfoss logotype are trademarks of Danfoss A/S. All rights reserved.
10
180R9277 / 521B1246 / DKCFN.PI.011.C1.02 / 05.2013
3. Electric motor manual
(180R9230)
Electric Motors
Motor Manual
hoyermotors.com
Manual
180R9287 / IOM PAHT /PAHT G 2-12.5 pumps - v01 / 06.2013
180R9230
51
This manual concerns the following types of standard induction motors from Hoyer:
HMA2, HMC2, HMD, HMT, MS, Y2E1, Y2E2, YDT
These motors are manufactured in accordance with IEC/EN
60034-4 and IEC/EN 60072.
Motors are rated for the ambient temperature range -20°C to +40°C and site altitudes
≤1000 m above sea level.
Low-voltage motors are components for installation in machinery. They are CE marked according to the Low
Voltage Directive 2006/95/EC
Correct alignment is essential to avoid bearing, vibration and shaft failure.
Use appropriate methods for alignment.
Re-check the alignment after the final tightening of the outdoors and not running 24 hours / day, so that the motor machinery. They are CE marked according to the Low
Voltage Directive 2006/95/EC bolts or studs.
Check that drain holes and plugs face downwards. We recommend opening the drain hole for motors placed outdoors and not running 24 hours / day, so that the motor can breathe, thus ensuring a dry motor.
Work is only permitted to be carried out by qualified specialists and must to be carried out in accordance with
Check the motor for external damage immediately upon receipt and, if found, inform the forwarding agent right away. Check all rating plate data, and compare it with the requirement of the motor.
Turn the shaft by hand to check free rotation, remove transport locking if used.
Transport locking must be used again for internal transport also. It is also important that transport locking is used when motors are transported mounted on equipment.
All motors should be stored indoors, in dry, vibration- and local regulations.
Before work commences, ensure that all power is switched off and cannot be switched on again. This also applies to the auxiliary power circuits, e.g. anti-condense heaters.
Check that supply voltage and frequency are the same as rated data.
Motors can be used with a supply deviation of ± 5% voltage and ± 2% frequency, according to IEC60034-1
Connection diagrams for main supply and accessory as PTC or heater are located inside the terminal box.
Lifting eyebolts must be tightened before use. Damaged eyebolts must not be used, check before use. Lifting eyes at motor must not be used to lift the motor when it is attached
Connections must be made in such a way as to ensure that a permanently safe electrical connection is maintained, both for the main supply and the earth connection.
We recommend that crimped connections are made in accordance with IEC 60352-2.
Before commissioning, measure the insulation impedance.
If values are
≤ 10MΩ at 25°C, the winding must be oven dried.
The insulation resistance reference is halved for each 20°C
Tightening torques for terminal board screws:
M5 M6 M6 M8 M8 M10 M10 M12 M16 M16 M20 M20 rise in motor temperature.
It is recommended that shafts are rotated periodically by hand to prevent grease migration.
M5
2.5 2.5 3.5 3.5 7 7 12 18
Ensure that the terminal box is clean and dry.
Unused glands must be closed.
12 18
Ensure that the terminal box is clean and dry.
Unused glands must be closed.
35 35 55 55
The motor must be fixed on a stable, clear and flat foundation. It must be sufficiently rigid to withstand possible short
5. Maintenance
circuit forces.
It is important to ensure that the mounting conditions do not cause resonance with the rotational frequency and the doubled supply frequency.
Only mount or remove drive components (pulley, coupling,
Inspect the motor at regular intervals, keep it clean and ensure free ventilation air flow, check the condition of shaft seals and replace if necessary. Both electrical and mechanical connections must be checked and tightened if
Only mount or remove drive components (pulley, coupling, etc.) using suitable tools, never hit the drive components with a hammer as this will cause damage to the bearing.
The motor are balancing with half key, ensure that the drive components are also the same.
necessary.
2
Motor Manual
This manual concerns the following types of standard induction motors from Hoyer:
HMA2, HMC2, HMD, HMT, MS, Y2E1, Y2E2, YDT
These motors are manufactured in accordance with IEC/EN
60034-4 and IEC/EN 60072.
Correct alignment is essential to avoid bearing, vibration and shaft failure.
Use appropriate methods for alignment.
Re-check the alignment after the final tightening of the bolts or studs.
Motors are rated for the ambient temperature range -20°C to +40°C and site altitudes machinery. They are CE marked according to the Low
Voltage Directive 2006/95/EC
≤1000 m above sea level.
Low-voltage motors are components for installation in machinery. They are CE marked according to the Low
Re-check the alignment after the final tightening of the bolts or studs.
Check that drain holes and plugs face downwards. We recommend opening the drain hole for motors placed outdoors and not running 24 hours / day, so that the motor
Work is only permitted to be carried out by qualified specialists and must to be carried out in accordance with
Check the motor for external damage immediately upon receipt and, if found, inform the forwarding agent right away. Check all rating plate data, and compare it with the requirement of the motor.
Turn the shaft by hand to check free rotation, remove transport locking if used.
Transport locking must be used again for internal transport also. It is also important that transport locking is used when motors are transported mounted on equipment.
All motors should be stored indoors, in dry, vibration- and local regulations.
Before work commences, ensure that all power is switched off and cannot be switched on again. This also applies to the auxiliary power circuits, e.g. anti-condense heaters.
Check that supply voltage and frequency are the same as rated data.
Motors can be used with a supply deviation of ± 5% voltage and ± 2% frequency, according to IEC60034-1
Lifting eyebolts must be tightened before use. Damaged eyebolts must not be used, check before use. Lifting eyes at motor must not be used to lift the motor when it is attached
Connections must be made in such a way as to ensure that a permanently safe electrical connection is maintained, both for the main supply and the earth connection.
We recommend that crimped connections are made in accordance with IEC 60352-2.
Before commissioning, measure the insulation impedance.
If values are
≤ 10MΩ at 25°C, the winding must be oven dried.
The insulation resistance reference is halved for each 20°C rise in motor temperature.
It is recommended that shafts are rotated periodically by hand to prevent grease migration.
M5 M5 M6 M6 M8 M8 M10 M12 M16 M20 M20
2.5 2.5 3.5 3.5 7 7 12 12 18 18 35 35
Ensure that the terminal box is clean and dry.
Unused glands must be closed.
55 55
The motor must be fixed on a stable, clear and flat foundation. It must be sufficiently rigid to withstand possible short
5. Maintenance
circuit forces.
It is important to ensure that the mounting conditions do not cause resonance with the rotational frequency and the doubled supply frequency.
Only mount or remove drive components (pulley, coupling,
Inspect the motor at regular intervals, keep it clean and ensure free ventilation air flow, check the condition of shaft seals and replace if necessary. Both electrical and mechanical connections must be checked and tightened if etc.) using suitable tools, never hit the drive components with a hammer as this will cause damage to the bearing.
The motor are balancing with half key, ensure that the drive components are also the same.
2 2
Bearing size and type are specified on the rating plate.
Motor types HMA2 and HMC2 is as standard with lifetime greased bearing with motor size
≤225.
Motor types MS and Y2E is as standard with lifetime greased bearing with motor size
≤160.
The table values are based on an ambient temperature of
25°C. The values must be halved for every 15K increase in bearing temperature.
Higher speed operations, e.g. frequency converter drive will require shorter greasing intervals. Typically, doubling the speed will reduce the values by 50%.
Typical duty hours for lifetime lubricated bearings.
6. Special note for Atex Zone 22 motors.
Frame size
56 – 160
180
200
225
180 – 225
Poles
2
2
2 – 8
2
4 – 8
Typical lifetime
40.000h
35.000h
27.000h
23.000h
40.000h
Notice for the use of electrical equipment in areas with combustible dust.
Designation of motor according to EC directive:
Ex II 3D T125°C, IP55.
Motors with a re-greasing system must be lubricated with high quality lithium complex grease, NLGI grade 2 or 3, with a temperature range of between -40°C to +150°C.
Motors are normal fitted with a data plate with greasing information; if it is missing use the following re-greasing intervals.
The dust hazardous 3-phase asynchronous motors are in accordance with European standard EN 50281-1-1.
Combustible dust areas will be found in agricultural areas and in industrial environments.
Only one electrical installation may be installed in one specified area (zone).
250
280
315
355
400
Frame Grease 2 pole size (g) (h)
160
180
200
225
20
20
25
25
4200
4200
3100
3100
35
35
50
60
80
2000
2000
1500
1000
800
4 pole
(h)
7000
7000
6500
6500
6000
6000
5500
4000
3000
6 pole
(h)
8500
8500
8500
8500
7000
7000
6500
5000
4000
7000
7000
6500
6000
6000
8 pole
(h)
8500
8500
8500
8500
Grease the motor while running, open the grease outlet plug and let the motor run 1-2 hours before the outlet grease plug is closed again.
Only certificated cable glands for category 2D may be used.
Unused glands must be closed.
Connections must be made in such a way as to ensure that a permanently safe electrical connection is maintained, both for the main supply and earth connection.
Installations must be in accordance with actual standards for installation in the Zone 22 area.
It is recommended that EN 50281-2 is followed according temperature and dust on the motor surface.
The use of motors with so much surface dust that the motor temperature increases is not permitted.
Regularly cleaning is recommended.
The radial shaft sealing ring is part of the ATEX certification.
It is important that the ring is always intact.
The shaft sealing must be regularly checked, and if dry it must be lubricated. It is recommended that the seal is re-lubricated regularly.
Always use the original seal ring when replaced.
Replacing bearings also means replacing the seals.
Grease the motor for the first time during commissioning.
The following applies in general for both lifetime lubricated and re-lubricated bearings:
At 60Hz the time will be reduced by app. 20%.
Data for vertically mounted motors are half of the above values.
All machines must be inspected regularly for mechanical damage.
The user is responsible for changing parts in accordance with the lifetime of parts, in particular: bearings, grease and lubrication of shaft sealing.
Maintenance, repairs and replacement on zone 22 motors must only be carried out by qualified specialists.
180R9287 / IOM PAHT /PAHT G 2-12.5 pumps - v01 / 06.2013
Hoyer Motors, Motor Manual, October 2011
Motor Manual Motor Manual
1. General
This manual concerns the following types of standard induction motors from Hoyer:
HMA2, HMC2, HMD, HMT, MS, Y2E1, Y2E2, YDT
These motors are manufactured in accordance with IEC/EN
60034-4 and IEC/EN 60072.
Motors are rated for the ambient temperature range -20°C to +40°C and site altitudes
≤1000 m above sea level.
Low-voltage motors are components for installation in machinery. They are CE marked according to the Low
Voltage Directive 2006/95/EC
Correct alignment is essential to avoid bearing, vibration and shaft failure.
Use appropriate methods for alignment.
Re-check the alignment after the final tightening of the bolts or studs.
Check that drain holes and plugs face downwards. We recommend opening the drain hole for motors placed outdoors and not running 24 hours / day, so that the motor can breathe, thus ensuring a dry motor.
2. Transport and storage
Check the motor for external damage immediately upon receipt and, if found, inform the forwarding agent right away. Check all rating plate data, and compare it with the requirement of the motor.
Turn the shaft by hand to check free rotation, remove transport locking if used.
Transport locking must be used again for internal transport also. It is also important that transport locking is used when motors are transported mounted on equipment.
All motors should be stored indoors, in dry, vibration- and dust-free conditions.
4. Electrical connection
Work is only permitted to be carried out by qualified specialists and must to be carried out in accordance with local regulations.
Before work commences, ensure that all power is switched off and cannot be switched on again. This also applies to the auxiliary power circuits, e.g. anti-condense heaters.
Check that supply voltage and frequency are the same as rated data.
Motors can be used with a supply deviation of ± 5% voltage and ± 2% frequency, according to IEC60034-1
Connection diagrams for main supply and accessory as PTC or heater are located inside the terminal box.
Lifting eyebolts must be tightened before use. Damaged eyebolts must not be used, check before use. Lifting eyes at motor must not be used to lift the motor when it is attached to other equipment.
Connections must be made in such a way as to ensure that a permanently safe electrical connection is maintained, both for the main supply and the earth connection.
We recommend that crimped connections are made in accordance with IEC 60352-2.
Before commissioning, measure the insulation impedance.
If values are
≤ 10MΩ at 25°C, the winding must be oven dried.
The insulation resistance reference is halved for each 20°C rise in motor temperature.
It is recommended that shafts are rotated periodically by hand to prevent grease migration.
Tightening torques for terminal board screws:
Thread
T.(Nm)
M5
2.5
M6 M8 M10 M12 M16 M20
3.5 7 12 18 35 55
Ensure that the terminal box is clean and dry.
Unused glands must be closed.
Check the terminal box gasket before it is remounted.
3. Installation
The motor must be fixed on a stable, clear and flat foundation. It must be sufficiently rigid to withstand possible short circuit forces.
It is important to ensure that the mounting conditions do not cause resonance with the rotational frequency and the doubled supply frequency.
Only mount or remove drive components (pulley, coupling, etc.) using suitable tools, never hit the drive components with a hammer as this will cause damage to the bearing.
The motor are balancing with half key, ensure that the drive components are also the same.
5. Maintenance
Inspect the motor at regular intervals, keep it clean and ensure free ventilation air flow, check the condition of shaft seals and replace if necessary. Both electrical and mechanical connections must be checked and tightened if necessary.
2 Hoyer Motors, Motor Manual, October 2011
Bearing size and type are specified on the rating plate.
Motor types HMA2 and HMC2 is as standard with lifetime greased bearing with motor size
≤225.
Motor types MS and Y2E is as standard with lifetime greased bearing with motor size
≤160.
The table values are based on an ambient temperature of
25°C. The values must be halved for every 15K increase in bearing temperature.
Higher speed operations, e.g. frequency converter drive will require shorter greasing intervals. Typically, doubling the speed will reduce the values by 50%.
Typical duty hours for lifetime lubricated bearings.
6. Special note for Atex Zone 22 motors.
Frame size
56 – 160
180
200
225
180 – 225
Poles
2
2
2 – 8
2
4 – 8
Typical lifetime
40.000h
35.000h
27.000h
23.000h
40.000h
Notice for the use of electrical equipment in areas with combustible dust.
Designation of motor according to EC directive:
Ex II 3D T125°C, IP55.
Motors with a re-greasing system must be lubricated with high quality lithium complex grease, NLGI grade 2 or 3, with a temperature range of between -40°C to +150°C.
Motors are normal fitted with a data plate with greasing information; if it is missing use the following re-greasing intervals.
The dust hazardous 3-phase asynchronous motors are in accordance with European standard EN 50281-1-1.
Combustible dust areas will be found in agricultural areas and in industrial environments.
Only one electrical installation may be installed in one specified area (zone).
250
280
315
355
400
Frame Grease 2 pole size (g) (h)
160
180
200
225
20
20
25
25
4200
4200
3100
3100
35
35
50
60
80
2000
2000
1500
1000
800
4 pole
(h)
7000
7000
6500
6500
6000
6000
5500
4000
3000
6 pole
(h)
8500
8500
8500
8500
7000
7000
6500
5000
4000
7000
7000
6500
6000
6000
8 pole
(h)
8500
8500
8500
8500
Grease the motor while running, open the grease outlet plug and let the motor run 1-2 hours before the outlet grease plug is closed again.
Only certificated cable glands for category 2D may be used.
Unused glands must be closed.
Connections must be made in such a way as to ensure that a permanently safe electrical connection is maintained, both for the main supply and earth connection.
Installations must be in accordance with actual standards for installation in the Zone 22 area.
It is recommended that EN 50281-2 is followed according temperature and dust on the motor surface.
The use of motors with so much surface dust that the motor temperature increases is not permitted.
Regularly cleaning is recommended.
The radial shaft sealing ring is part of the ATEX certification.
It is important that the ring is always intact.
The shaft sealing must be regularly checked, and if dry it must be lubricated. It is recommended that the seal is re-lubricated regularly.
Always use the original seal ring when replaced.
Replacing bearings also means replacing the seals.
Grease the motor for the first time during commissioning.
The following applies in general for both lifetime lubricated and re-lubricated bearings:
At 60Hz the time will be reduced by app. 20%.
Data for vertically mounted motors are half of the above values.
All machines must be inspected regularly for mechanical damage.
The user is responsible for changing parts in accordance with the lifetime of parts, in particular: bearings, grease and lubrication of shaft sealing.
Maintenance, repairs and replacement on zone 22 motors must only be carried out by qualified specialists.
3
55
Svend Hoyer A/S · Over Hadstenvej 42 · DK-8370 Hadsten
T +45 86 98 21 11 · F +45 86 98 17 79 · [email protected] · svendhoyer.com
MAKING MODERN LIVING POSSIBLE
4. Parts list PAHT and
PAHT G (521B1237)
Parts list
PAHT 2-308 pumps
PAHT G 2-308 pumps
Svend Hoyer A/S · Over Hadstenvej 42 · DK-8370 Hadsten
T +45 86 98 21 11 · F +45 86 98 17 79 · [email protected] · svendhoyer.com
danfoss.high-pressurepumps.com
Parts list
Table of Contents
Parts list for
PAHT and PAHT G pumps
(521B1237)
PAHT and PAHT G pumps
13.
14.
15.
16.
9.
10.
11.
12.
7.
8.
5.
6.
3.
4.
1.
2.
21.
22.
23.
24.
17.
18.
19.
20.
25.
26.
General
Spare parts list for PAHT 2
Exploded view for PAHT 2
Spare parts list for PAHT G 2
Exploded view for PAHT G 2
Spare parts list for PAHT 3.2-6.3
Exploded view for PAHT 3.2-6.3
Spare parts list for PAHT G 3.2-6.3
Exploded view for PAHT G 3.2-6.3
Spare parts list for PAHT 10-12.5
Exploded view for PAHT 10-12.5
Spare parts list for PAHT G 10-12.5
Exploded view for PAHT G 10-12.5
Spare parts list for PAHT 20-32
Exploded view for PAHT 20-32
Spare parts list for PAHT G 20-32
Exploded view for PAHT G 20-32
Spare parts list for PAHT 50-90
Exploded view for PAHT 50-90
Spare parts list for PAHT G 50-90
Exploded view for PAHT G 50-90
Spare parts list for PAHT 256-308
Exploded view for PAHT 256-308
Spare parts list for PAHT G 256-308
Exploded view for PAHT G 256-308
Tool sets
Not included
Parts list
Table of Contents
Parts list for
PAHT and PAHT G pumps
(521B1237)
PAHT and PAHT G pumps
13.
14.
15.
16.
9.
10.
11.
12.
7.
8.
5.
6.
3.
4.
1.
2.
21.
22.
23.
24.
17.
18.
19.
20.
25.
26.
General
Spare parts list for PAHT 2
Exploded view for PAHT 2
Spare parts list for PAHT G 2
Exploded view for PAHT G 2
Spare parts list for PAHT 3.2-6.3
Exploded view for PAHT 3.2-6.3
Spare parts list for PAHT G 3.2-6.3
Exploded view for PAHT G 3.2-6.3
Spare parts list for PAHT 10-12.5
Exploded view for PAHT 10-12.5
Spare parts list for PAHT G 10-12.5
Exploded view for PAHT G 10-12.5
Spare parts list for PAHT 20-32
Exploded view for PAHT 20-32
Spare parts list for PAHT G 20-32
Exploded view for PAHT G 20-32
Spare parts list for PAHT 50-90
Exploded view for PAHT 50-90
Spare parts list for PAHT G 50-90
Exploded view for PAHT G 50-90
Spare parts list for PAHT 256-308
Exploded view for PAHT 256-308
Spare parts list for PAHT G 256-308
Exploded view for PAHT G 256-308
Tool sets
2
521B1237 / DKCFN.PY.011.A1.02 / 05.2013
Parts list
1. General
PAHT and PAHT G pumps
•
•
•
•
•
•
This parts list provides an overview of the content of the various service sets for the
PAHT 2-6.3
PAHT G 2-6.3
PAHT 10-12.5
PAHT G 10-12.5
PAHT 20-32
PAHT G 20-32
•
•
•
•
PAHT 50-90
PAHT G 50-90
PAHT 256-308
PAHT G 256-308 as well as exploded views of the pumps.
Not included
Parts list
Spare parts list for
PAHT 2
PAHT and PAHT G pumps
122
123
124
125
126
127
136
69
91
92
93
94
121
62
63
64
65
66
67
32
33
34
61
Pos.
Qnt.
Designation
1 1 Housing
2 1 Pin Ø5 x 10
5
31
4
1
Screw M6 x 16
Swash plate
1
1
1
1
Screw M6 x 8
Washer
Pin Ø4 x 8
Cylinder barrel
1
1
1
1
5
1
1
1
1
5
5
1
Spring
Spring guide
Retainer ball
Retainer plate
Piston
Key 5 x 5 x 20
Stop
Port plate
Valve plate
Back up ring
O-ring Ø8,73 x Ø1,78
Port flange
1 O-ring Ø70 x Ø2,72
1 O-ring Ø75,92 x Ø1,78
1 Shaft seal
1 End cover
1 Pin Ø4 x 8
2 Screw M5 x 20
2 O-ring Ø7 x Ø1,5
1 Service instruction
Material
AISI 304 / PEEK
AISI 316
AISI 316
AISI 431
AISI 304
AISI 304
AISI 316
AISI 431 / PEEK
AISI 304
PEEK
PEEK
1.4301
AISI 431/ PEEK
AISI 316Ti
PEEK
AISI 304 / PEEK
AISI 431
PTFE
NBR
AISI 304 / PEEK
NBR
NBR
AISI 304 / NBR
AISI 304
AISI 316
AISI 304
NBR x x x x x x x x x x x x x x x x x x x x x x
Parts list
Spare parts list for
PAHT 2
PAHT and PAHT G pumps
122
123
124
125
126
127
136
69
91
92
93
94
121
62
63
64
65
66
67
32
33
34
61
Pos.
Qnt.
Designation
1 1 Housing
2 1 Pin Ø5 x 10
5
31
4
1
Screw M6 x 16
Swash plate
1
1
1
1
Screw M6 x 8
Washer
Pin Ø4 x 8
Cylinder barrel
1
1
1
1
5
1
1
1
1
5
5
1
Spring
Spring guide
Retainer ball
Retainer plate
Piston
Key 5 x 5 x 20
Stop
Port plate
Valve plate
Back up ring
O-ring Ø8,73 x Ø1,78
Port flange
1 O-ring Ø70 x Ø2,72
1 O-ring Ø75,92 x Ø1,78
1 Shaft seal
1 End cover
1 Pin Ø4 x 8
2 Screw M5 x 20
2 O-ring Ø7 x Ø1,5
1 Service instruction
Material
AISI 304 / PEEK
AISI 316
AISI 316
AISI 431
AISI 304
AISI 304
AISI 316
AISI 431 / PEEK
AISI 304
PEEK
PEEK
1.4301
AISI 431/ PEEK
AISI 316Ti
PEEK
AISI 304 / PEEK
AISI 431
PTFE
NBR
AISI 304 / PEEK
NBR
NBR
AISI 304 / NBR
AISI 304
AISI 316
AISI 304
NBR x x x x x x x x x x x x x x x x x x x x x x
4
521B1237 / DKCFN.PY.011.A1.02 / 05.2013
Parts list
Exploded view for
PAHT 2
PAHT and PAHT G pumps
Parts list
Spare parts list for
PAHT G 2
PAHT and PAHT G pumps
122
123
124
125
126
127
136
69
91
92
93
94
121
62
63
64
65
66
67
32
33
34
61
Pos.
Qnt.
Designation
1 1 Housing
2 1 Pin Ø5 x 10
5
31
4
1
Screw M6 x 16
Swash plate
1
1
1
1
Screw M6 x 8
Washer
Pin Ø4 x 8
Cylinder barrel
1
1
1
1
5
1
1
1
1
5
5
1
Spring
Spring guide
Retainer ball
Retainer plate
Piston
Key 5 x 5 x 20
Stop
Port plate
Valve plate
Back up ring
O-ring Ø8,73 x Ø1,78
Port flange
1 O-ring Ø70 x Ø2,72
1 O-ring Ø75,92 x Ø1,78
1 Shaft seal
1 End cover
1 Pin Ø4 x 8
2 Screw M5 x 20
2 O-ring Ø7 x Ø1,5
1 Service instruction
Material
AISI 304 / PEEK
AISI 316
AISI 316
AISI 431
AISI 304
AISI 304
AISI 316
AISI 431 / PEEK
AISI 304
PEEK
PEEK
1.4301
AISI 431/ PEEK
AISI 316Ti
PEEK
AISI 304 / PEEK
AISI 431
PTFE
NBR
AISI 304 / PEEK
NBR
NBR
AISI 304 / NBR
AISI 304
AISI 316
AISI 304
NBR x x x x x x x x x x x x x x x x x x x x x x
Parts list
Spare parts list for
PAHT G 2
PAHT and PAHT G pumps
122
123
124
125
126
127
136
69
91
92
93
94
121
62
63
64
65
66
67
32
33
34
61
Pos.
Qnt.
Designation
1 1 Housing
2 1 Pin Ø5 x 10
5
31
4
1
Screw M6 x 16
Swash plate
1
1
1
1
Screw M6 x 8
Washer
Pin Ø4 x 8
Cylinder barrel
1
1
1
1
5
1
1
1
1
5
5
1
Spring
Spring guide
Retainer ball
Retainer plate
Piston
Key 5 x 5 x 20
Stop
Port plate
Valve plate
Back up ring
O-ring Ø8,73 x Ø1,78
Port flange
1 O-ring Ø70 x Ø2,72
1 O-ring Ø75,92 x Ø1,78
1 Shaft seal
1 End cover
1 Pin Ø4 x 8
2 Screw M5 x 20
2 O-ring Ø7 x Ø1,5
1 Service instruction
Material
AISI 304 / PEEK
AISI 316
AISI 316
AISI 431
AISI 304
AISI 304
AISI 316
AISI 431 / PEEK
AISI 304
PEEK
PEEK
1.4301
AISI 431/ PEEK
AISI 316Ti
PEEK
AISI 304 / PEEK
AISI 431
PTFE
NBR
AISI 304 / PEEK
NBR
NBR
AISI 304 / NBR
AISI 304
AISI 316
AISI 304
NBR x x x x x x x x x x x x x x x x x x x x x x
6
521B1237 / DKCFN.PY.011.A1.02 / 05.2013
Parts list
Exploded view for
PAHT G 2
PAHT and PAHT G pumps
Parts list
Spare parts list for
PAHT 3.2-6.3
PAHT and PAHT G pumps
Pos.
Qnt.
Designation
126
127
136
94
121
122
123
124
125
69
91
92
93
64
65
66
67
32
33
34
61
62
63
5
31
1
2
1 Housing
1 Pin Ø5 x 10
4 Screw M6 x 16
1 Swash plate
1 Screw M6 x 8
1 Washer
1 Pin Ø4 x 8
1 Cylinder barrel
1 Spring
1 Spring guide
1 Retainer ball
1 Retainer plate
5 Piston
1 Key 5 x 5 x 20
1 Stop
1 Port plate
1 Valve plate
5 Back up ring
5 O-ring Ø8,73 x Ø1,78
1 Port flange
1 O-ring Ø70 x Ø2,72
1 O-ring Ø75,92 x Ø1,78
1 Shaft seal
1 End cover
1 Pin Ø4 x 8
2 Screw M5 x 20
2 O-ring Ø7 x Ø1,5
1 Service instruction
Material
AISI 304 / PEEK
AISI 316
AISI 316
AISI 431
AISI 304
AISI 304
AISI 316
AISI 431 / PEEK
AISI 304
PEEK
PEEK
1.4301
AISI 431/ PEEK
AISI 316Ti
PEEK
AISI 304 / PEEK
AISI 431
PTFE
NBR
AISI 304 / PEEK
NBR
NBR
AISI 304 / NBR
AISI 304
AISI 316
AISI 304
NBR x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
Parts list
Spare parts list for
PAHT 3.2-6.3
PAHT and PAHT G pumps
8
Pos.
Qnt.
Designation
126
127
136
94
121
122
123
124
125
69
91
92
93
64
65
66
67
32
33
34
61
62
63
1
2
5
31
1 Housing
1 Pin Ø5 x 10
4 Screw M6 x 16
1 Swash plate
1 Screw M6 x 8
1 Washer
1 Pin Ø4 x 8
1 Cylinder barrel
1 Spring
1 Spring guide
1 Retainer ball
1 Retainer plate
5 Piston
1 Key 5 x 5 x 20
1 Stop
1 Port plate
1 Valve plate
5 Back up ring
5 O-ring Ø8,73 x Ø1,78
1 Port flange
1 O-ring Ø70 x Ø2,72
1 O-ring Ø75,92 x Ø1,78
1 Shaft seal
1 End cover
1 Pin Ø4 x 8
2 Screw M5 x 20
2 O-ring Ø7 x Ø1,5
1 Service instruction
Material
AISI 304 / PEEK
AISI 316
AISI 316
AISI 431
AISI 304
AISI 304
AISI 316
AISI 431 / PEEK
AISI 304
PEEK
PEEK
1.4301
AISI 431/ PEEK
AISI 316Ti
PEEK
AISI 304 / PEEK
AISI 431
PTFE
NBR
AISI 304 / PEEK
NBR
NBR
AISI 304 / NBR
AISI 304
AISI 316
AISI 304
NBR x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
521B1237 / DKCFN.PY.011.A1.02 / 05.2013
Parts list
Exploded view for
PAHT 3.2-6.3
PAHT and PAHT G pumps
Parts list
Spare parts list for
PAHT G 3.2-6.3
PAHT and PAHT G pumps
64
65
66
67
69
34
61
62
63
123
124
125
126
127
136
91
92
93
94
121
122
Pos.
Qnt.
Designation
1 1 Housing
2 1 Pin Ø5 x 10
5
31
32
33
4
1
1
1
Screw M6 x 16
Swash plate
Screw M6 x 8
Washer
1
1
1
1
1
1
5
Pin Ø4 x 8
Cylinder barrel
Spring
Spring guide
Retainer ball
Retainer plate
Piston
1 Key 5 x 5 x 20
1 Stop
1
1
5
5
1
1
1
1
1
1
2
2
Port plate
Valve plate
Back up ring
O-ring Ø8,73 x Ø1,78
Port flange
O-ring Ø70 x Ø2,72
O-ring Ø75,92 x Ø1,78
Shaft seal
End cover
Pin Ø4 x 8
Screw M5 x 20
O-ring Ø7 x Ø1,5
1 Service instruction
Material
AISI 304 / PEEK
AISI 316
AISI 316
AISI 431
AISI 304
AISI 304
AISI 316
AISI 431 / PEEK
AISI 304
PEEK
PEEK
1.4301
AISI 431/ PEEK
AISI 316Ti
PEEK
AISI 304 / PEEK
AISI 431
PTFE
NBR
AISI 304 / PEEK
NBR
NBR
AISI 304 / NBR
AISI 304
AISI 316
AISI 304
NBR x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
Parts list
Spare parts list for
PAHT G 3.2-6.3
PAHT and PAHT G pumps
64
65
66
67
69
34
61
62
63
123
124
125
126
127
136
91
92
93
94
121
122
Pos.
Qnt.
Designation
1 1 Housing
2 1 Pin Ø5 x 10
32
33
5
31
4
1
1
1
Screw M6 x 16
Swash plate
Screw M6 x 8
Washer
1
1
1
1
1
1
5
Pin Ø4 x 8
Cylinder barrel
Spring
Spring guide
Retainer ball
Retainer plate
Piston
1 Key 5 x 5 x 20
1 Stop
1
1
5
5
1
1
1
1
1
1
2
2
Port plate
Valve plate
Back up ring
O-ring Ø8,73 x Ø1,78
Port flange
O-ring Ø70 x Ø2,72
O-ring Ø75,92 x Ø1,78
Shaft seal
End cover
Pin Ø4 x 8
Screw M5 x 20
O-ring Ø7 x Ø1,5
1 Service instruction
Material
AISI 304 / PEEK
AISI 316
AISI 316
AISI 431
AISI 304
AISI 304
AISI 316
AISI 431 / PEEK
AISI 304
PEEK
PEEK
1.4301
AISI 431/ PEEK
AISI 316Ti
PEEK
AISI 304 / PEEK
AISI 431
PTFE
NBR
AISI 304 / PEEK
NBR
NBR
AISI 304 / NBR
AISI 304
AISI 316
AISI 304
NBR x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
10
521B1237 / DKCFN.PY.011.A1.02 / 05.2013
Parts list
Exploded view for
PAHT G 3.2-6.3
PAHT and PAHT G pumps
Parts list
Spare parts list for
PAHT 10-12.5
PAHT and PAHT G pumps
91
92
93
94
121
122
62
63
64
65
66
67
123
124
125
126
127
136
32
33
34
61
Pos.
Qnt.
Designation
1 1 Housing
2 1 Pin Ø5 x 10
5
31
4
1
Screw M8 x 20
Swash plate
1
1
1
1
Screw M6 x 8
Washer
Pin Ø5 x 10
Cylinder barrel
1
1
1
1
5
1
1
1
5
5
1
1
1
1
1
1
2
2
Spring
Spring guide
Retainer ball
Retainer plate
Piston
Key 5 x 5 x 20
Port plate
Valve plate
Back up ring
O-ring Ø13 x Ø2
Port flange
O-ring Ø90 x Ø2
O-ring Ø75,92 x Ø1,78
Shaft seal
End cover
Pin Ø6 x 10
Screw M5 x 20
O-ring Ø7 x Ø1,5
1 Service instruction
Material
AISI 304 / PEEK
AISI 316
AISI 304
AISI 431
AISI 304
AISI 304
AISI 316
AISI 431 / PEEK
AISI 316Ti
PEEK
PEEK
AISI 304
AISI 431/ PEEK
AISI 316Ti
AISI 304 / PEEK
AISI 431
PTFE
NBR
AISI 304 / PEEK
NBR
NBR
AISI 304 / NBR
AISI 304
AISI 316
AISI 304
NBR x x x x x x x x x x x x x x x x x x x x x x x x x x x
Parts list
Spare parts list for
PAHT 10-12.5
PAHT and PAHT G pumps
91
92
93
94
121
122
62
63
64
65
66
67
123
124
125
126
127
136
32
33
34
61
Pos.
Qnt.
Designation
1 1 Housing
2 1 Pin Ø5 x 10
5
31
4
1
Screw M8 x 20
Swash plate
1
1
1
1
Screw M6 x 8
Washer
Pin Ø5 x 10
Cylinder barrel
1
1
1
1
5
1
1
1
5
5
1
1
1
1
1
1
2
2
Spring
Spring guide
Retainer ball
Retainer plate
Piston
Key 5 x 5 x 20
Port plate
Valve plate
Back up ring
O-ring Ø13 x Ø2
Port flange
O-ring Ø90 x Ø2
O-ring Ø75,92 x Ø1,78
Shaft seal
End cover
Pin Ø6 x 10
Screw M5 x 20
O-ring Ø7 x Ø1,5
1 Service instruction
Material
AISI 304 / PEEK
AISI 316
AISI 304
AISI 431
AISI 304
AISI 304
AISI 316
AISI 431 / PEEK
AISI 316Ti
PEEK
PEEK
AISI 304
AISI 431/ PEEK
AISI 316Ti
AISI 304 / PEEK
AISI 431
PTFE
NBR
AISI 304 / PEEK
NBR
NBR
AISI 304 / NBR
AISI 304
AISI 316
AISI 304
NBR x x x x x x x x x x x x x x x x x x x x x x x x x x x
Parts list
Exploded view for
PAHT 10-12.5
PAHT and PAHT G pumps
12
521B1237 / DKCFN.PY.011.A1.02 / 05.2013
Parts list
Spare parts list for
PAHT G 10-12.5
PAHT and PAHT G pumps
91
92
93
94
121
122
62
63
64
65
66
67
123
124
125
126
127
136
32
33
34
61
Pos.
Qnt.
Designation
1 1 Housing
2 1 Pin Ø5 x 10
5
31
4
1
Screw M8 x 20
Swash plate
1
1
1
1
Screw M6 x 8
Washer
Pin Ø5 x 10
Cylinder barrel
1
1
1
1
5
1
1
1
5
5
1
1
1
1
1
1
2
2
Spring
Spring guide
Retainer ball
Retainer plate
Piston
Key 5 x 5 x 20
Port plate
Valve plate
Back up ring
O-ring Ø13 x Ø2
Port flange
O-ring Ø90 x Ø2
O-ring Ø75,92 x Ø1,78
Shaft seal
End cover
Pin Ø6 x 10
Screw M5 x 20
O-ring Ø7 x Ø1,5
1 Service instruction
Material
AISI 304 / PEEK
AISI 316
AISI 304
AISI 431
AISI 304
AISI 304
AISI 316
AISI 431 / PEEK
AISI 316Ti
PEEK
PEEK
AISI 304
AISI 431/ PEEK
AISI 316Ti
AISI 304 / PEEK
AISI 431
PTFE
NBR
AISI 304 / PEEK
NBR
NBR
AISI 304 / NBR
AISI 304
AISI 316
AISI 304
NBR x x x x x x x x x x x x x x x x x x x x x x x x x x x
Parts list
Spare parts list for
PAHT G 10-12.5
PAHT and PAHT G pumps
91
92
93
94
121
122
62
63
64
65
66
67
123
124
125
126
127
136
32
33
34
61
Pos.
Qnt.
Designation
1 1 Housing
2 1 Pin Ø5 x 10
5
31
4
1
Screw M8 x 20
Swash plate
1
1
1
1
Screw M6 x 8
Washer
Pin Ø5 x 10
Cylinder barrel
1
1
1
1
5
1
1
1
5
5
1
1
1
1
1
1
2
2
Spring
Spring guide
Retainer ball
Retainer plate
Piston
Key 5 x 5 x 20
Port plate
Valve plate
Back up ring
O-ring Ø13 x Ø2
Port flange
O-ring Ø90 x Ø2
O-ring Ø75,92 x Ø1,78
Shaft seal
End cover
Pin Ø6 x 10
Screw M5 x 20
O-ring Ø7 x Ø1,5
1 Service instruction
Material
AISI 304 / PEEK
AISI 316
AISI 304
AISI 431
AISI 304
AISI 304
AISI 316
AISI 431 / PEEK
AISI 316Ti
PEEK
PEEK
AISI 304
AISI 431/ PEEK
AISI 316Ti
AISI 304 / PEEK
AISI 431
PTFE
NBR
AISI 304 / PEEK
NBR
NBR
AISI 304 / NBR
AISI 304
AISI 316
AISI 304
NBR x x x x x x x x x x x x x x x x x x x x x x x x x x x
Parts list
Exploded view for
PAHT G 10-12.5
PAHT and PAHT G pumps
14
521B1237 / DKCFN.PY.011.A1.02 / 05.2013
Parts list
26. Tool sets
PAHT and PAHT G pumps
Designation
Shaft bush, torpedo
Press tool
Mounting screw
Allen key, 6 mm
Adjustable pin wrench
Combination wrench, 10 mm
Combination wrench, 13 mm
Nut, M8 x 6.5 x 13
Guide bolt, M8 x 140
Shaft seal extractor, Ø45
Press bush, Ø45
Eye bolt, M8
Press bush for valve plate
Stop for retainer plate
Screw, M8 x 20
Screw, M8 x 70 x x x x x x x x x x x x x x x x x x x x x x x x x
Danfoss A/S
High Pressure Pumps
DK-6430 Nordborg
Denmark
Danfoss can accept no responsibility for possible errors in catalogues, brochures and other printed material. Danfoss reserves the right to alter its products without notice.
This also applies to products already on order provided that such alterations can be made without subsequential changes being necessary in specifications already agreed.
All trademarks in this material are property of the respective companies. Danfoss and the Danfoss logotype are trademarks of Danfoss A/S. All rights reserved.
Parts list
26. Tool sets
PAHT and PAHT G pumps
Designation
Shaft bush, torpedo
Press tool
Mounting screw
Allen key, 6 mm
Adjustable pin wrench
Combination wrench, 10 mm
Combination wrench, 13 mm
Nut, M8 x 6.5 x 13
Guide bolt, M8 x 140
Shaft seal extractor, Ø45
Press bush, Ø45
Eye bolt, M8
Press bush for valve plate
Stop for retainer plate
Screw, M8 x 20
Screw, M8 x 70 x x x x x x x x x x x x x x x x x x x x x x x x x
MAKING MODERN LIVING POSSIBLE
5. Trouble shooting guide for PAH, PAHT, PAHT G,
Guideline
Trouble shooting guide for
PAH / PAHT / PAHT G / PAHT 674 and PAH F pumps
Danfoss A/S
High Pressure Pumps
DK-6430 Nordborg
Denmark
Danfoss can accept no responsibility for possible errors in catalogues, brochures and other printed material. Danfoss reserves the right to alter its products without notice.
This also applies to products already on order provided that such alterations can be made without subsequential changes being necessary in specifications already agreed.
All trademarks in this material are property of the respective companies. Danfoss and the Danfoss logotype are trademarks of Danfoss A/S. All rights reserved.
28
521B1237 / DKCFN.PY.011.A1.02 / 05.2013
danfoss.high-pressurepumps.com
Guideline Trouble shooting guide for PAH, PAHT, PAHT G, PAHT 674 and PAH F pumps
Table of Contents
Trouble shooting guide for
PAH, PAHT, PAHT G and
PAH F pumps
4.
5.
6.
6.1
6.2
6.3
2.
3.
Trouble shooting fish bone chart
1. No flow/no pressure
Reduced flow/reduced pressure
High torque on electric motor
Noise from pump
Noise from installation
Typical signs of wear
Valve plate
Port plate
Swash plate
Guideline Trouble shooting guide for PAH, PAHT, PAHT G, PAHT 674 and PAH F pumps
Table of Contents
Trouble shooting guide for
PAH, PAHT, PAHT G and
PAH F pumps
4.
5.
6.
6.1
6.2
6.3
2.
3.
Trouble shooting fish bone chart
1. No flow/no pressure
Reduced flow/reduced pressure
High torque on electric motor
Noise from pump
Noise from installation
Typical signs of wear
Valve plate
Port plate
Swash plate
Guideline
Trouble shooting fish bone chart
Trouble shooting guide for PAH, PAHT, PAHT G, PAHT 674 and PAH F pumps
2
04.2013
Guideline Trouble shooting guide for PAH, PAHT, PAHT G, PAHT 674 and PAH F pumps
1. No flow/no pressure
Cause
1.1 Dry running
(no water supply to the pump)
1.2 Pump reversing
(electric motor is running the wrong direction, i.e. counter-clockwise)
Remedy
If no water comes out of the pump:
1.1.1 Check that inlet valve is open.
1.1.2 Check that booster pump is running.
1.2.1 Change the phase on the electric motor to make it run clockwise.
WARNING:
- The pump must not run without water for more than a few seconds.
- If the pump takes in water from the high- pressure outlet line, it builds up pressure in pump housing and will eventually break down.
Comments
Mount a low pressure switch in front of the pump and check its set point/ function. The low pressure switch ensures that the pump does not start until the inlet pressure has reachedminimum inlet pressure (see Data sheet).
Rotation direction for the pump is shown by an arrow on the label on the pump.
1.3 No rotation of electric motor
1.4 No rotation of pump
1.5 Axial load on pump shaft
(may cause high internal leakage)
Only applying to
PAH 2-12.5
PAHT 2-308
PAH F 20-40
PAHT G 2-308
1.3.1 Check that main switch is switched on.
1.3.2 Check the electricity at the facility.
1.3.3 Ensure that motor relay is switched on.
1.3.4 Ensure that fuse is not blown.
1.3.5 Ensure that booster pump is started.
1.3.6 Check that the monitor switches are working correctly.
1.3.7 Disconnect pump from electric motor and check that the motor is capable of running with no load.
1.4.1 Ensure that coupling between electric motor and pump is connected.
1.4.2 Check if coupling is damaged.
1.4.3 Check that electric motor is sized correctly.
1.4.4 Check that the electrical installation is correctly sized.
1.4.5 Contact Danfoss Sales office for guidelines in how to troubleshoot internal pump parts.
1.5.1 Ensure that the air gap between the two coupling parts is min 5 mm. It should always be possible to move the plastic part on the coupling at least 3 mm.
If motor-type relay or the electrical fuse is blown, check that electric motor is sized correctly.
To ensure easy mounting of the flexible coupling without using tools, the tolerances must be dimensioned accordingly.
WARNING:
Any axial and/or radial loads on the shaft must be avoided. Any axial or radial load will cause breakdown.
A - Bell housing
B - Flexible coupling
C - Motor shaft
1.6 Pump damage
(the internal parts may be damaged)
1.6.1 Contact Danfoss sales office for guidelines in how to troubleshoot internal pump parts.
A B
Instructions on internal elements are available on www.danfoss.high-pressurepumps.com
C
Guideline Trouble shooting guide for PAH, PAHT, PAHT G, PAHT 674 and PAH F pumps
1. No flow/no pressure
Cause
1.1 Dry running
(no water supply to the pump)
1.2 Pump reversing
(electric motor is running the wrong direction, i.e. counter-clockwise)
Remedy
If no water comes out of the pump:
1.1.1 Check that inlet valve is open.
1.1.2 Check that booster pump is running.
1.2.1 Change the phase on the electric motor to make it run clockwise.
WARNING:
- The pump must not run without water for more than a few seconds.
- If the pump takes in water from the high- pressure outlet line, it builds up pressure in pump housing and will eventually break down.
Comments
Mount a low pressure switch in front of the pump and check its set point/ function. The low pressure switch ensures that the pump does not start until the inlet pressure has reachedminimum inlet pressure (see Data sheet).
Rotation direction for the pump is shown by an arrow on the label on the pump.
1.3 No rotation of electric motor
1.4 No rotation of pump
1.5 Axial load on pump shaft
(may cause high internal leakage)
Only applying to
PAH 2-12.5
PAHT 2-308
PAH F 20-40
PAHT G 2-308
1.3.1 Check that main switch is switched on.
1.3.2 Check the electricity at the facility.
1.3.3 Ensure that motor relay is switched on.
1.3.4 Ensure that fuse is not blown.
1.3.5 Ensure that booster pump is started.
1.3.6 Check that the monitor switches are working correctly.
1.3.7 Disconnect pump from electric motor and check that the motor is capable of running with no load.
1.4.1 Ensure that coupling between electric motor and pump is connected.
1.4.2 Check if coupling is damaged.
1.4.3 Check that electric motor is sized correctly.
1.4.4 Check that the electrical installation is correctly sized.
1.4.5 Contact Danfoss Sales office for guidelines in how to troubleshoot internal pump parts.
1.5.1 Ensure that the air gap between the two coupling parts is min 5 mm. It should always be possible to move the plastic part on the coupling at least 3 mm.
If motor-type relay or the electrical fuse is blown, check that electric motor is sized correctly.
To ensure easy mounting of the flexible coupling without using tools, the tolerances must be dimensioned accordingly.
WARNING:
Any axial and/or radial loads on the shaft must be avoided. Any axial or radial load will cause breakdown.
A - Bell housing
B - Flexible coupling
C - Motor shaft
1.6 Pump damage
(the internal parts may be damaged)
1.6.1 Contact Danfoss sales office for guidelines in how to troubleshoot internal pump parts.
A B
Instructions on internal elements are available on www.danfoss.high-pressurepumps.com
C
4
04.2013
Guideline
2.2 Low inlet pressure
2.3 Rotation speed (rpm)
Trouble shooting guide for PAH, PAHT, PAHT G, PAHT 674 and PAH F pumps
2. Reduced flow/reduced pressure
Cause
2.1 Wear on pump
Large internal leakage due to:
Remedy
2.1.1 Dismantle the pump.
2.1.2 Check valve plate.
Valve plate has marks/scratches on the surface facing the port plate. Minor wear on valve plate can cause large internal leakage. See Index 6.1.
2.1.3 Check port plate.
Port plate has marks/scratches on the surface facing the valve plate. Minor wear on port plate can cause large internal leakage. See Index 6.2.
2.1.4 Check cylinder barrel.
Liners in cylinder barrel may be scratched or worn. Insert a piston in the liner and check the fit. If there is any space
(clearance) between liner and piston, liner or piston is worn.
2.1.5 Pre-treatment:
Analyse fluid for content of particles.
- Check that filters are OK and working
correctly.
2.1.6 Main filtration:
Check that the correct filter type is used
(particles in fluidmust not exceed 10 μm).
Danfoss High Pressure Pumps supplies filters, please contact the sales office.
Comments
Typical signs of wear:
Polished surface all over the swash plate.
Normally, only half of the swash plate = the pressure side is polished. See index 6.3.
If the ring is missing, the piston is very worn.
2.1.7 Fluid type:
The PAH/PAH F (tapwater) and PAHT/PAHT
G (ultra pure water) pumps are designed for water operation; for any other fluid, please contact Danfoss High Pressure
Pumps sales office for further help.
The filters can be bypassed, even if they are correctly mounted. Some filters can create channelling where particles can pass trough the filter in tunnels. String wound filters are typically channelling filters. A string wound filter may have a filtration efficiency of only
50%, which will cause internal wear and must
always be followed by a main filter.
Insufficient filtration means that too many or too large hard particles can pass the main filter because it is damaged, bypassed or simply too poor. Filtration efficiency must be 99.98%
(Beta = 5000) at 10 μm to prevent abnormal wear of the pump.
2.1.8 High fluid temperature:
If fluid temperature is above 50°C, stop the pump immediately.
- Check internal parts (see above).
2.2.1 Check that booster pump supplies the right pressure/flow.
2.2.2 Check if filters require replacement.
Temperature > 50° C will cause wear on internal pump parts. Mount a temperature switch and check its set point / function. The temperature switch will ensure that the pump stops at fluid temperatures > 50° C.
If the pressure drop across the filters is too high, the booster pump does not deliver sufficient flow/pressure. No pressure or low pressure results in cavitation and insufficient internal lubrication causing wear on internal pump parts.
2.3.1 If VFD-operated, check frequency.
2.3.2 Check that rotation speed of the electric motor is as stated on name plate on electric motor. Check that the motor rotor winding is not damaged.
Mount a low-pressure switch in front of the pump and check its set point/ function. The low- pressure switch ensures that the pump does not start until the inlet pressure has reached 1 bar.
Speeds below minimum limit (see Data sheet) result in insufficient internal lubrication causing wear on the internal pump parts.
Guideline
3.2 Pump starts against pressure
3.3 Constant torque
3.4 Water pump damage
Trouble shooting guide for PAH, PAHT, PAHT G, PAHT 674 and PAH F pumps
3. High torque on electric motor
Cause
3.1 Too high outlet pressure from pump
Remedy
3.1.1 Check for blocked nozzles or a faulty adjusted relief valve.
Comments
Pressure changes due to flow restrictions. This will also cause high motor torque.
3.2.1 Check that electric motor is correctly sized.
3.2.2 Check internal parts (see item 2.1).
3.2.3 Systems with more than one electric motor installed:
Start motors simultaneously.
3.3.1 Please contact Danfoss sales office.
Pumps run in parallel with cascade start, may switch off the motor relay due to too high torque caused by high outlet pressure.
3.4.1 Dismantle pump and check for wear.
If the electric motor is too small for the pump, it cannot provide sufficient torque.
Too heavy damage in the pump will increase friction causing a high torque (see item 6,
Typical signs of wear).
Guideline
3.2 Pump starts against pressure
3.3 Constant torque
3.4 Water pump damage
Trouble shooting guide for PAH, PAHT, PAHT G, PAHT 674 and PAH F pumps
3. High torque on electric motor
Cause
3.1 Too high outlet pressure from pump
Remedy
3.1.1 Check for blocked nozzles or a faulty adjusted relief valve.
Comments
Pressure changes due to flow restrictions. This will also cause high motor torque.
3.2.1 Check that electric motor is correctly sized.
3.2.2 Check internal parts (see item 2.1).
3.2.3 Systems with more than one electric motor installed:
Start motors simultaneously.
3.3.1 Please contact Danfoss sales office.
Pumps run in parallel with cascade start, may switch off the motor relay due to too high torque caused by high outlet pressure.
3.4.1 Dismantle pump and check for wear.
If the electric motor is too small for the pump, it cannot provide sufficient torque.
Too heavy damage in the pump will increase friction causing a high torque (see item 6,
Typical signs of wear).
Guideline
4. Noise from pump
Cause
4.1 Air in fluid
4.2 Bleeding conditions of pump
4.3 Min/max nominal inlet pressure
4.4 Pump reversing
4.5 High rotation speed (rpm)
4.6 Outlet pressure
4.7 Soft start/stop
Trouble shooting guide for PAH, PAHT, PAHT G, PAHT 674 and PAH F pumps
Remedy
4.1.1 Ensure that the entire inlet line is bled before starting up the system.
4.1.2 Ensure that air cannot enter into the inlet line.
4.2.1 Follow the instructions “Initial start-up” supplied with the new pump.
4.2.2 Ensure that the pump is completely bled before start-up.
4.3.1 Ensure that inlet pressure is between the limits specified in the Data sheet.
4.3.2 Check the pump for internal damage.
Comments
Small air bubbles will accumulate and create large bubbles causing internal cavitation and thus making the pump very noisy.
WARNING:
The pump can only run few minutes with air in the fluid without being damaged.
The pump and the inlet line must be completely bled before start-up, otherwise the pump will cavitate and make high noise.
WARNING:
The pump can only run few minutes with air in the fluid without being damaged.
Too high inlet pressure causes too high pressure inside the pump damaging the pistons and eventually the pump.
Inlet pressure below min. limit causes cavitation and insufficient internal lubrication resulting in wear on internal pump parts.
4.4.1 Dismantle pump and check if anything is broken or worn (See “1. No flow”, item 1.2
Pump reversing”).
WARNING:
The pump must not run without water for more than a few seconds. If the pump takes in water from the high-pressure outlet line, it builds up pressure and will eventually be damaged.
4.5.1 If electric motor rpm is too high, dismantle pump and check for damage.
4.5.2 If the rpm is within the specified range of the pump data sheet and abnormal noise remains, dismantle pump and check for damage.
Mount a low-pressure switch in front of the pump and check its set point/ function. The low-pressure switch will ensure that the pump does not start until the minimum inlet pressure has been reached.
If pump rotates in wrong direction, it will take in water from the high-pressure outlet line.
Pressure will be built up inside the pump and it will eventually be damaged.
Higher rpm than specified in the pump data sheet results in wear of the pistons, i.e. pistons may be damaged.
High rpm will also increase pressure pulsations from the pump, and the noise level will increase.
4.6.1 If outlet pressure is too low, check set point of outlet pressure valve.
4.6.2 If outlet pressure is lower than mentioned in the pump data sheet, please contact
Danfoss High Pressure Pumps technical support.
4.6.3 If outlet pressure has exceeded its maximum, check set point of outlet pressure valve.
4.6.4 Check internal parts for wear/damage.
4.7.1 Check if noise is normal when the pump is running at operation speed.
4.7.2 If noise is abnormal at operation speed, check internal parts (see above).
If rpm is changed, noise frequency will also change.
At too low outlet pressure, the pump will create higher pressure pulsations and thus make noise. Too low pressure also causes insufficient internal lubrication and wear on internal parts.
Pump may eventually be damaged.
Too high outlet pressure may damage the pump.
Noise frequency changes during soft start-up/ stop.
6
04.2013
Guideline Trouble shooting guide for PAH, PAHT, PAHT G, PAHT 674 and PAH F pumps
5. Noise from installation
Cause
5.1 Inlet/outlet connections (hoses/pipes)
5.2 Length/dimension of inlet/outlet line
5.3 Hose stiffness
5.4 Hoses/pipes mounted directly on frame
Remedy
5.1.1 Use flexible hoses at inlet/outlet connections.
5.1.2 Mount the connections to the frame by a vibration damper mounting plate.
5.2.1 Increase pipe diameter and/or reduce the number of bends.
Comments
Non-flexible connections mounted directly on the frame will cause even small pressure pulsations from pump and create vibrations in the system/plant.
5.3.1 Use a more flexible hose.
5.4.1 Mount the connections to the frame by a vibration damper mounting plate.
5.5 Vibration damper under the electric motor 5.5.1 Mount a vibration damper below the motor/pump.
Too small pipes or too many bends may create too fast flow/turbulence through the pipes and thus increase the noise level.
Too stiff hoses cannot damp the small pressure pulsations from the pump, and subsequently vibrations occur in the system/plant.
If the hoses are mounted directly on the frame, the small pressure pulsations from the pump can be transferred to the frame and the rest of the system/plant.
When no damper is installed below the electric motor, vibrations from the motor and pump may be transferred to the frame and the rest of the system/plant.
Guideline Trouble shooting guide for PAH, PAHT, PAHT G, PAHT 674 and PAH F pumps
5. Noise from installation
Cause
5.1 Inlet/outlet connections (hoses/pipes)
5.2 Length/dimension of inlet/outlet line
5.3 Hose stiffness
5.4 Hoses/pipes mounted directly on frame
Remedy
5.1.1 Use flexible hoses at inlet/outlet connections.
5.1.2 Mount the connections to the frame by a vibration damper mounting plate.
5.2.1 Increase pipe diameter and/or reduce the number of bends.
Comments
Non-flexible connections mounted directly on the frame will cause even small pressure pulsations from pump and create vibrations in the system/plant.
5.3.1 Use a more flexible hose.
5.4.1 Mount the connections to the frame by a vibration damper mounting plate.
5.5 Vibration damper under the electric motor 5.5.1 Mount a vibration damper below the motor/pump.
Too small pipes or too many bends may create too fast flow/turbulence through the pipes and thus increase the noise level.
Too stiff hoses cannot damp the small pressure pulsations from the pump, and subsequently vibrations occur in the system/plant.
If the hoses are mounted directly on the frame, the small pressure pulsations from the pump can be transferred to the frame and the rest of the system/plant.
When no damper is installed below the electric motor, vibrations from the motor and pump may be transferred to the frame and the rest of the system/plant.
Guideline
6. Typical signs of wear
6.1 Valve plate
Trouble shooting guide for PAH, PAHT, PAHT G, PAHT 674 and PAH F pumps
Picture 1 A normally worn valve plate has no marks/scratches but only a slightly
polished surface.
No scratches or marks should be felt. The surface must be flat and level.
Picture 2
Scratches
Picture 3
A worn valve plate has scratches, and/or a polished surface. Even small scratches will give a loss of flow.
A good way to identify a worn valve plate is to hold a straight knife edge over the valve plate. When holding it up to the light, it will be possible to see any space between the knife edge and the valve plate. See picture 3.
If any light can be seen between the two arrows on the picture, the valve plate is worn.
If any scratches or marks can be felt by running a fingernail over the surface, the valve plate is worn.
The valve plate on picture 3 is highly damaged.
8
04.2013
Guideline
6.2 Port plate
Picture 1
Trouble shooting guide for PAH, PAHT, PAHT G, PAHT 674 and PAH F pumps
6.3 Swash plate
Picture 1
Scratc hes
Level d nd s hining P
EEK n
If the port plate has scratches, level differences or both between the arrows, the port plate must be replaced.
Even small scratches or wear will cause loss of flow.
To check: See item 6.1, picture 3
If the swash plate is polished 360°, it is an indication of insufficient filtration.
The surface of the swash plate must be plane and even at same level all over. To check this, please see item 6.1, picture 3.
If the surface has any marks/scratches it is worn/damaged and a new one is required.
Please contact Danfoss High Pressure Pumps sales office for further information.
Danfoss A/S
High Pressure Pumps
DK-6430 Nordborg
Denmark
Danfoss can accept no responsibility for possible errors in catalogues, brochures and other printed material. Danfoss reserves the right to alter its products without notice.
This also applies to products already on order provided that such alterations can be made without subsequential changes being necessary in specifications already agreed.
All trademarks in this material are property of the respective companies. Danfoss and the Danfoss logotype are trademarks of Danfoss A/S. All rights reserved.
Guideline
6.2 Port plate
Picture 1
Trouble shooting guide for PAH, PAHT, PAHT G, PAHT 674 and PAH F pumps
6.3 Swash plate
Picture 1
Scratc hes
Level d nd s ifferen ces b
EEK n
If the port plate has scratches, level differences or both between the arrows, the port plate must be replaced.
Even small scratches or wear will cause loss of flow.
To check: See item 6.1, picture 3
If the swash plate is polished 360°, it is an indication of insufficient filtration.
The surface of the swash plate must be plane and even at same level all over. To check this, please see item 6.1, picture 3.
If the surface has any marks/scratches it is worn/damaged and a new one is required.
Please contact Danfoss High Pressure Pumps sales office for further information.
MAKING MODERN LIVING POSSIBLE
6. Right and wrong
- Trouble shooting guide for water hydraulic systems
Right and wrong
Trouble shooting guide for water hydraulic systems
Danfoss A/S
High Pressure Pumps
DK-6430 Nordborg
Denmark
Danfoss can accept no responsibility for possible errors in catalogues, brochures and other printed material. Danfoss reserves the right to alter its products without notice.
This also applies to products already on order provided that such alterations can be made without subsequential changes being necessary in specifications already agreed.
All trademarks in this material are property of the respective companies. Danfoss and the Danfoss logotype are trademarks of Danfoss A/S. All rights reserved.
10
04.2013
danfoss.high-pressurepumps.com
180R9042
4.
Pump location
Design
1.
Choice of material
.
.
.
Rubber
Plastic
Stainless steel
.
Iron
.
Copper
.
Brass
.
Aluminium
Always use system components made of corrosion proof materials
Non-corrosion proof materials may cause damage
2.
< 10 m m abs.
Choice of filter
> 10 m m
Pump always to be placed below water surface level
Pump location above water surface level will cause damage
5.
Suction conditions
6.
System to be dimensioned to provide a suction pressure of the pump inlet of max. 0.1 bar vacuum
Poor suction conditions will cause malfunction and damage the pump
Pressure Relief valve
3.
Install a 10 micron absolute filter with pressure switch
Return filter with bypass valve and poorer filterability than 10 damage the system m
will
Filter location
7.
Pressure relief valve to be mounted vertically or with vertical outlet and connected to return hose or tank
Coupling the pressure relief valve outlet directly to the pump inlet may damage the pump
Water supply
Locate the return filter in the return line immediately before the tank
Placing the return filter upstream of the final load may damage the pump
System to be filled via filter
Filling system with unfiltered water causes damage
Installation
8.
Impurities
11.
Assembly of coupling
Prior to installation, burrs and chips and other impurities must be removed from pipes and hoses, eg with a felt plug
Chips or other impurities in the system may cause damage
9.
Sealing
The coupling must be easy and simple to assemble (see product instruction)
Never use force when assembling the coupling parts, as this will damage the motor/pump
12.
Coupling
= min. 3 mm
0 mm
Fittings in screwed components to be sealed with O-rings or bonded seals
Using teflon tape or packing yarn in joints may cause damage
10.
Grease
Ensure always to have 3 mm distance between coupling flanges
Insufficient distance and/or misalignment between the coupling flanges will damage the pump
13.
Water supply
Correctly limited quantities of grease prevent seizing
Too much grease may develop biofilm causing operational failures
Fill system with water before starting to ensure lubrication and cooling
Starting without water will cause damage
Wiring
14.
Level indicator
Level and temperature indicators must be fitted. Follow installation instructions
Missing or incorrectly connected level and temperature indicators cause damage
15.
1
?
2
Rotation direction
Check pump drive motor rotation direction matches that of the pump prior to installation
Incorrect rotation direction will damage the pump
16.
Bleeding
Starting procedure
Cleaning procedure
1. Fill cold water into the system via the return filter and
bleed the pump (Power Packs PPH 4 - 6.3 - 10 and 12.5 are
self-bleeding)
2. Start and bleed the system -without pressure by opening
the bypass valve
3. Add the cleaning agent to give 3% agent/water solution
4. Run the system for 60 min. and activate all components as
often as possible to ensure effective flushing with the
cleaning agent
5. Empty the system of the cleaning agent solution
Flushing procedure
6. Fill cold water through the return filter and bleed the
pump (Power Packs PPH 4 - 6.3 - 10 and 12.5 are
self-bleeding)
7. Run the system for 30 min. and activate all components as
often as possible
8. Empty the system of the water
9. Alternatively the system may be flushed by running the
unit without the return hose while continuously filling up
water. The flushing should continue until there is no trace
of cleaning agent in the return water
10. Change the return filter element, fill cold water through
the return filter and bleed the pump during start up
11. The system is now ready for operation
Starting procedure
Bleeding the pump will ensure correct cooling and lubrication
Insufficient bleeding may cause damage (not applicable to Power Packs)
60 min.
2-3 days
Observing the starting procedure will ensure problem-free operation
If the system is not cleaned before starting, the filter will clog
Trouble shooting
Open ended water systems
No water supply
No
.
Is water coming
out of the tap?
.
Are all taps open?
Yes
Yes
.
Is the control light
for “low pump suction
pressure” on?
.
The filter is clogging
No
.
Is water coming
through the filter?
No
Yes
.
Replace filter element
No
.
Is the water supply ok?
.
Is water supplied to the pump?
Yes
.
Is the electric motor of
the pump unit rotating?
No
Yes
.
Is the water in the tank
very hot? Ie above 50 o
Yes
No
.
Lower inlet
temperature or
provide better cooling
.
Is the power supply ok?
.
Are control lights on?
Yes
No
.
Is the filter clogged?
.
Is the filter control
light on?
Yes
.
Replace filter element
Contact serviceman
No
.
A blown fuse / or short
circuit?
.
Check power supply
and fuses and contact
electrician
.
Turn on the tap for
water supply
Stamp
Trouble shooting
Open ended water systems
No water supply
No
.
Is water coming
out of the tap?
.
Are all taps open?
Yes
Yes
.
Is the control light
for “low pump suction
pressure” on?
.
The filter is clogging
No
.
Is water coming
through the filter?
No
Yes
.
Replace filter element
No
.
Is the water supply ok?
.
Is water supplied to the pump?
Yes
.
Is the electric motor of
the pump unit rotating?
No
Yes
.
Is the water in the tank
very hot? Ie above 50 o
Yes
No
.
Lower inlet
temperature or
provide better cooling
.
Is the power supply ok?
.
Are control lights on?
Yes
No
.
Is the filter clogged?
.
Is the filter control
light on?
Yes
.
Replace filter element
Contact serviceman
No
.
A blown fuse / or short
circuit?
.
Check power supply
and fuses and contact
electrician
.
Turn on the tap for
water supply
Stamp
Trouble shooting
Closed water systems
The system does not work
No
.
Is there sufficient water
in the tank?
Yes
.
Fill water into the system
.
Is the electric motor of
the pump unit rotating?
No
Yes
.
Is the water in the tank
very hot? Ie above 50 o
Yes
No
.
A blown fuse/or short
circuit?
.
Check power supply
and fuses and contact
electrician
No
.
Is the power supply ok?
.
Are control lights on?
Yes
.
Is the filter clogged?
.
Is the filter control
light on?
No
Yes
.
At temperatures
higher than 50 o
the
pump drive cuts out.
Consequently the
cooler must be
checked/cleaned
.
Replace filter element
Contact serviceman
.
Trace leakage, if any
Stamp
88
180R9287 / IOM PAHT /PAHT G 2-12.5 pumps - v01 / 06.2013
DKCFN.PI.000.C2.02 180R9042 521B0288
Trouble shooting
Closed water systems
The system does not work
No
.
Is there sufficient water
in the tank?
Yes
.
Fill water into the system
.
Is the electric motor of
the pump unit rotating?
No
Yes
.
Is the water in the tank
very hot? Ie above 50 o
Yes
No
.
A blown fuse/or short
circuit?
.
Check power supply
and fuses and contact
electrician
No
.
Is the power supply ok?
.
Are control lights on?
Yes
.
Is the filter clogged?
.
Is the filter control
light on?
No
Yes
.
At temperatures
higher than 50 o
the
pump drive cuts out.
Consequently the
cooler must be
checked/cleaned
.
Replace filter element
Contact serviceman
.
Trace leakage, if any
Stamp
User manual Installation, Operation and Maintenance Manual for PAHT / PAHT G 2-12.5 pumps
180R9287 / IOM PAHT /PAHT G 2-12.5 pumps - v01 / 06.2013
DKCFN.PI.000.C2.02 180R9042 521B0288
89
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Key features
- Suitable for technical water
- Different models with various power outputs
- Detailed installation instructions
- Safety and maintenance guidelines
- Troubleshooting and scrapping criteria
- Dimension drawings and technical data
- Recommended operating conditions
- Proper filtration requirements
- Information on handling and transportation
- Commissioning and servicing procedures