Pilot Operated Pressure Regulators w/ elec override 1/2" to 4" 25PE

Pilot Operated Pressure Regulators w/ elec override 1/2" to 4" 25PE
Pilot Operated Pressure Regulator w/ Electric Override
1/2" to 4" 25PE
The 25PE has all of
Model 25PE
the features of the
25P, with the addition Sizes
½" to 2"
2½", 3", 4"
½" to 2" 2", 2½", 3", 4"
of an electric pilot. An
electrical signal can Connections
NPT ANSI 125 flgd.
NPT
ANSI 300 flgd.
override the pressure
Cast Steel
pilot to provide a Construction
Cast Iron remote
shut-off Options
ANSI 250 flgd.
ANSI 150 flgd.
capability.
*Note: For pressures
below
15
psig,
the E pilot is not
recommended
for
use with valves 2½"
and larger.
(excludes 2")
Electric Pilot
Enclosure: NEMA 4 & 7 (C&D) 115v (230v)/60Hz
Specifications
Inrush: 45 VA Normally closed
200 psig Max. operating pressure
Electric Pilot
For regulators 2½" and larger at pressures below 125
Optionspsig, use the following electric pilot:
Enclosure: NEMA 4 & 7 (C&D) 115v (230v)/60Hz
Inrush: 45 VA Normally closed
140 psig Max. operating pressure
(for faster response time) 230 Volt Coil
Limiting Operating Conditions
Max. Operating NPT: 200 psig (14 barg) @ 392˚F (200˚C)
Pressure(PMO) ANSI 125: 125 psig (8 barg) @ 392˚F (200˚C)
¼" NPT Sensing
Line Connection
Typical Applications
Steam pressure reducing applications where
the PRV must also respond to an electrical
program timer, safety or limit switch, or remote
manual switch.
Sample Specification
The pressure regulator shall be of the pilotactuated diaphragm operated type. The main
valve shall be single-seated with hardened
stainless steel trim; the regulator body shall be
cast iron (cast steel). The pilot shall be bolted
directly to the regulator body. The main valve
shall be capable of dead-end shut-off. The
electric pilot shall have a NEMA 4 & 7 (C & D)
enclosure with 115v (230v) 60 Hz coil.
A
A1
ANSI 250: 200 psig (14 barg) @ 392˚F (200˚C)
ANSI 150: 185 psig (12 barg) @ 392˚F (200˚C)
ANSI 300: 200 psig (14 barg)@ 392˚F (200˚C)
Max. Operating 392˚F (200˚C)
Temperature
C1
Downstream Pressure Ranges
For the following downstream pressures, three colorcoded pilot valve springs are available:
Yellow: 3 to 30 psi Blue: 20 to 100 psi Red: 80 to 250 psi
C1
E1
E1
Pressure Shell Design Conditions
PMA Cast Iron: 250 psig/0-450˚F 17 barg/0-232˚C
Max. allowable Cast Steel: 300 psig/0-600˚F 21 barg/0-316˚C
pressure
TMA
Max. allowable
temperature
Cast Iron: 450˚F/0-250 psig 232˚C/0-17 barg
Cast Steel: 600˚F/0-300 psig 316˚C/0-21 barg
Capacities
For selection & sizing data, see TI-3-030-US.
Installation
The regulator should be installed in a horizontal line with suitable
bypass and isolating valves. A steam trap should be installed
upstream to prevent condensate from reaching the regulator.
The trap and regulator should both be protected with a strainer.
The pressure sensing line should be located in a straight section of the downstream piping at least 10 pipe diameters from
the nearest fitting. Complete installation instructions are given
in IM-3-000-US.
Maintenance
Complete installation and maintenance instructions are given
in IM-3-000-US, a copy of which is supplied with each
regulator. Available spare parts are shown on TI-3-0271-US and
TI-1-1120-US.
D
D
½" to 2"
B
B
2"*
to 4"
Dimensions
(nominal) in inches and millimeters
Ansi 125 Ansi 250
Ansi 300
Size ½", ¾" A
5.5
140
A1
–
–
A1
–
–
B
7.6
194
C1
14.1
367
D
6.2
157
E1
20.6
524
1"
6.0
152
–
–
–
–
8.6
219
14.4
365
6.75
171
21.1
537
43 lb
19.5 kg
47 lb
21.3 kg
1¼", 1½"
7.25
184
–
–
–
–
8.6
219
14.9
379
7.1
179
22.0
559
48 lb
21.8
52 lb
23.6 kg
8.5
216
–
–
9.0
228
10.6
270
15.6
395
8.2
208
23.75
603
73 lb
33.1 kg
80 lb
36.3 kg
2½"
–
_
10.9
276
11.5
292
13.6
346
16.25
413
13.9
354
30.2
767
160 lb
72.6 kg
175 lb
79.4 kg
3"
–
–
11.75
298
12.5
318
13.6
346
16.2
411
14.4
367
30.6
778
191 lb
86.6 kg
208 lb
94.4 kg
–
–
13.9
352
14.5
368
15.6
397
17.5
445
16.1
410
33.6
854
287 lb
130 kg
313 lb
142 kg
2"
4"
Weight
Cast Iron CastSteel
36 lb 39 lb
16.3 kg 17.7 kg
Local regulation may restrict the use of this product below the conditions quoted. Limiting conditions refer to standard connections only.
In the interests of development and improvement of the product, we reserve the right to change the specification.
TI-3-0151-US 4.12
Pilot Operated Pressure Regulator w/ Electric Override
1/2" to 4" 25PE
43
44
48
45
46
48
62
50
49
47
51
61
3
60
2
11
13
7
1
4
5
6
25
60
3
9
8
10
12
11
2
13
7
1
4
5
14
57
58
53
51
54
52
55
25
52
28
16
59
17
40
18
15
58
19
25
28
27
19
15
21
22
21
22
23
PE Pilot
½" to 4"
24
20
26
20
2"* to 4"
½" to 2"
Construction Materials
No. Part Material
1
Valve Body
Cast Iron
ASTM A 126 CL B
Cast Steel
ASTM A216 Gr WCB
2
Cover
Cast Iron
ASTM A 126 CL B
Cast Steel
ASTM A216 Gr WCB
3
Cover Bolts
Steel
ASTM A449
4
Main Valve Head
Stainless Steel
5
Main Valve Seat
Stainless Steel 6
Main Valve Seat GasketCopper
7
Valve Return Spring Stainless Steel
8
Valve Stem
Stainless Steel
9
Strainer Screen
Stainless Steel
10
Valve Stem Sleeve
Stainless Steel
11
Spring Guide
Cast Iron ½"-2"
CRS 2"* - 4" 12Nut
Steel
13
Cover Gasket
Graphite
14
Pressure Equalizer Pipe Stainless Steel
15 Upper Diaphragm CaseCast Iron
ASTM A 126 CL B
Cast Steel
ASTM A216 Gr WCB
16
Stem Bushing
Stainless Steel
(2½" - 4" Cast Steel only)
17
Diaphragm Plate Stem Stainless Steel
AISI 304
18
Diaphragm Stem GuideStainless Steel
AISI 303
19Nut
Brass ½" - 2"
Steel 2"* - 4" 20
Lower Diaphragm CaseCast Iron
ASTM A 126 CL B
Cast Steel
ASTM A216 Gr WCB
21
Diaphragm Plate
Brass ½" - 2"
C.I. 2"* - 4" 22
Main Diaphragm (2 ply)Stainless Steel
23Bushing
CRS
*ANSI 300 ONLY
No. Part Material
24
Tube & Orifice
Stainless Steel
25
Tubing Assembly
Copper
Brass
26
Plug (Cast Iron)
Brass
(Cast Steel)
Steel
27
Connector Stud
Stainless Steel
28
Body Gasket
½" - 2" Copper Clad
2"* - 4" Graphite
40
Electric Pilot Adapter Cast Iron
Bronze
43
Adjustment Screw
Stainless Steel
44
Jam Nut
Brass
45
Pilot Valve Spring
Steel
46
Upper Diaphragm CaseCast Iron
Cast Steel
47
Lower Diaphragm CaseCast Iron
Cast Steel
48
Spring Plate
Steel
49
Diaphragm
Stainless Steel
50
Diaphragm Plate
Brass
51 Pilot Head Spring
Stainless Steel
52
Spring Retainer Cup Stainless Steel
53
Retaining Ring
Brass
54
Pilot Seat
Stainless Steel
55 Pilot Head
Stainless Steel
56
Head Stem
Stainless Steel
57
Stem Guide
Stainless Steel
58
Stem Guide Gasket
Stainless Steel
59
Seat Gasket
Stainless Steel
60
Pilot Gasket
Graphite
61
Pilot Mounting Screws Steel
62
Diaphragm Case Screws Steel
ASTM A 126 CL B
ASTM B62
ASTM A569
ASTM A449
TI-3-0151-US
Spirax Sarco, Inc., 1150 Northpoint Blvd, Blythewood, SC 29016
Telephone: (803) 714-2000 FAX (803) 714-2222
© Spirax Sarco, Inc. 2012
25P
4.12
Was this manual useful for you? yes no
Thank you for your participation!

* Your assessment is very important for improving the work of artificial intelligence, which forms the content of this project

Download PDF

advertisement