Mark 686/686G Series Air-Loaded Cage Trim Pressure Regulators Pressure Regulat

Mark 686/686G Series Air-Loaded Cage Trim Pressure Regulators Pressure Regulat
CRN Registration Number Available
Air-Loaded Cage Trim Pressure Regulators
Operation
The set point is adjusted by controlling the
air pressure that is supplied to the top of the
diaphragm. The supplied air pressure opens
the valve to allow the process media to pass
through the seats. The downstream pressure
is sensed beneath the diaphragm through a
downstream sensing tap. As the downstream
pressure exceeds the loading pressure, the
plug moves toward the closed position.
Features
• Easy to maintain and service — remove bottom entry cage to access plug. Diaphragm
is accessible from the top
• Large effective diaphragm area — for increased accuracy and sensitivity
• Large orifices and body passages — provides high flow capacities
• Tight shutoff — choice of hard (ANSI Class
IV) or soft (ANSI Class VI bubble-tight) seat
• For applications with differential pressure up
to 300 psi (20,7 bar) on water, air, oil, gas,
steam and chemicals
Jordan Valve a division of Richards Industries
3170 Wasson Road • Cincinnati, OH 45209
513.533.5600 • 800.543.7311 • 513.871.0105 (f)
[email protected] • www.jordanvalve.com
Mark 686686G Air-Loaded Cage Trim Pressure Regulators
The Mark 686 is a cage trim pressure reducing
valve that features air-loading, high capacities,
accurate regulation, and easy servicing, making it an exceptional choice for your pressure
regulating applications. The bottom-entry cage
trim allows simple cleaning or repair – all working trim parts can be removed from the body as
one assembly. The diaphragm is easily accessible from the top, allowing maintenance without
removing the valve from the line.
Pressure Regulators
Mark 686/686G Series
Mark 686/686G Air-Loaded Cage Trim Pressure Regulators
Specifications
Sizes: 1/4" through 2" (DN8 through DN50)
Maximum Inlet Pressure: 300 psi (20,7 bar)
End Connections
• Threaded – NPT, BSPT, BSPP, Socket Weld
• Flanged – 150#, 300#, PN10, PN16, PN25,
PN40
Maximum Temperature: 200°F (93°C) with BunaN seats and diaphragm; 350°F (177°C) with Viton
seats and Viton or SST diaphragm
Body Materials
• Ductile Iron
• Bronze
• Carbon Steel
• Stainless Steel
Plug: 17-4 Ph Stainless Steel
Minimum Temperature: -20°F (-29°C) with Buna-N
seats and diaphragm; 0°F (-18°C) with Viton seats
and diaphragm ; -15°F (-26°C) with SST diaphragm
and SST or Viton seats; -20°F (-29°C) with SST diaphragm and Buna-N seats
Pressure Recovery Factory FL: 0.9
Cv (Kv) Values
Plug Seat
• Buna-N
• Viton
• Hardened 17-4 Ph Stainless Steel
Valve Size
(DN)
1/4" (DN8)
3/8" (DN10)
1/2" (DN15)
Cage (with hardened nickel plating)
• BR, DI or CS body valves: steel
• SS body valves: 303 Stainless Steel
3/4" (DN20)
1" (DN25)
Cage Seat: 316 Stainless Steel
1-1/4"
(DN32)
Spring Housing: Cast Iron
1-1/2"
(DN40)
Diaphragm
• Standard – Buna-N/Nylon
• Optional – Stainless Steel or Viton/Nomex
2" (DN50)
Shutoff
• Hard Seat – ANSI Class IV
• Soft Seat – ANSI Class VI for bubble-tight
shutoff
-2-
Orifice Size
inches
mm
0.47
12
0.47
12
0.47
12
0.60
15
0.75
19
0.60
15
0.75
19
1.07
27
1.23
31
1.07
27
1.23
31
1.23
31
1.47
37
Valve Flow
Cv
Kv
2.2
1,9
2.6
2,2
2.9
2,5
5.2
4,5
7.0
6,0
5.6
4,8
7.7
6,6
13.5
11,6
15.5
13,3
13.5
11,6
16.5
14,2
17.0
14,6
19.0
16,3
Mark 686/686G Air-Loaded Cage Trim Pressure Regulators
Dimensions
D
1/4" NPT
B (Max)
C
A
• Threaded Ends
Valve
Size
1/4"
3/8"
1/2"
3/4"
1"
1-1/4"
1-1/2"
2"
A
5.00
5.00
5.00
5.00
5.00
7.50
7.50
7.50
Dimensions (Inches)
B
C
2.09
2.56
2.09
2.56
2.09
2.56
3.04
2.62
3.04
2.62
4.00
3.87
4.00
3.87
4.00
3.87
• Threaded Ends (metric)
D
5.00
5.00
5.00
6.87
6.87
9.38
9.38
9.38
Weight
lbs
Valve
Size
8
8
8
15
15
45
45
45
DN8
DN10
DN15
DN20
DN25
DN32
DN40
DN50
-3-
A
127
127
127
127
127
191
191
191
Dimensions (mm)
B
C
53
65
53
65
53
65
77
67
77
67
102
98
102
98
102
98
D
127
127
127
174
174
238
238
238
Weight
kgs
3,6
3,6
3,6
6,8
6,8
20,4
20,4
20,4
Mark 686/686G Air-Loaded Cage Trim Pressure Regulators
MK686/0512/5K/AB
Ordering Schematic
Model No
Size
Body Mat'l
1
2
686
Model
Standard
686G
Air Loaded Globe Valve
025
Size
1/4" (DN8)
038
3/8" (DN10)
050
1/2" (DN15)
075
3/4" (DN20)
100
1" (DN25)
125
1-1/4" (DN32)
150
1-1/2" (DN40)
200
2" (DN50)
DI
Body Material
Ductile Iron
CS
Carbon Steel (WCB)
S6
Stainless Steel (CF8M)
BR
Bronze
1&2
PT
End Connections
NPT
BT
BSPT
BP
BSPP
SW
FSW
F1
125#FE
F5
150#FE
F2
250#FE
F3
3
4
5
6
7
3&4
B
V
J
M
ZZ
Buna-N
Viton
EPDM
Hard
8
9
10
Plug Seat
Cv (Kv)
1
0.21 (0,18)
2
0.42 (0,36)
3
0.84 (0,72)
4
1.6 (1,4)
5
2.2 (1,9)
6
2.6 (2,2)
7
2.9 (2,5)
8
4.4 (3,8)
9
5.2 (4,5)
B
5.6 (4,8)
F
7.0 (6,0)
G
7.7 (6,6)
M
13.5 (11,6)
P
15.5 (13,3)
Q
16.5 (14,2)
S
17.0 (14,6)
W
19.0 (16,3)
Non-Standard
5&6
Diaphragm
BN
Buna-N
S6
316SST
VI
Viton
ZZ
Non-Standard
7&8
Actuato
MD
For all Diaphragm Materials
ZZ
Non-Standard
300#FE
9 & 10
Accessories
F7
PN10 DIN FE
00
None
F6
PN16 DIN FE
S8
18-8SS Bolting
F8
PN25 DIN FE
S6
316SS Bolting
F4
PN40 DIN FE
SC
Oil-Free Clean
ZZ
Non-Standard
XC
Oxygen Clean
ZZ
Non-Standard
Jordan Valve a division of Richards Industries
3170 Wasson Road • Cincinnati, OH 45209
513.533.5600 • 800.543.7311 • 513.871.0105 (f)
[email protected] • www.jordanvalve.com
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