PRESSURE REDUCING REGULATORS
PRESSURE REDUCING REGULATORS
MODEL DA4
Model PGR-1 is high performance, pressure loaded diaphragm- type, flow-to-open pressure reducing regulator. Design includes an internal pressure balancing piston-cylinder that provides high flow capacity. The internal trim design allows the same basic unit to cover a broad range of pressure settings. Performance meets or exceeds that of competitive pressure loaded or pilot-operated designs. The PGR-1 regulator is applied primarily in clean natural gaseous service and fuel gas - sweet or sour. MODEL PGR-1 MODEL ULR-1 Model ULR-1 is high performance, pressure loaded diaphragm- type, flow-to-open pressure reducing regulator. Design includes an internal pressure balancing piston-cylinder that provides high flow capacity and high pressure drop capability. The internal trim design allows the same basic unit to cover a broad range of pressure settings. Performance meets or exceeds that of competitive pressure loaded or pilot-operated designs. A back pressure regulator or "unloader" is piped to the top of the dome and is "set" to control the outlet pressure of the pressure reducing regulator.
The DAP is a pressure loaded pressure reducing regulator for all fluid types. Much like the DAO, the ability to allow varying flows with little change in set pressure makes this an ideal regulator for high accuracy applications. The difference is the larger piston design, which allows for higher outlet pressures with lower pressure drops across the valve. MODEL DAP
The Model PGR-1 is a precise pressure reducing regulator.
End connections:
Body sizes:
The DA4 is a dome loaded, high capacity reducing regulator. Much like the DA1, the ability to allow
ASME Flanged, NPT Temperature range: -70° to +250°F, (-56° C to +121° C) Inlet Pressure: 10 – 400 psig Outlet Pressure: 2.0" W.C. – 200 psig
1", 1-1/2", 2", 3", 4"
Maximum Cv: 198 Body/Cover Dome Materials: DI/DI, CS/CS, SST/SST
varying flows with little change in set pressure makes this an ideal regulator for high accuracy applications. (The DA4 and the DA6 are ideal solutions for automating your pressure control systems.)
The Model DA4 is a dome loaded high capacity reducing regulator.
DI = Ductile Iron CS = Carbon Steel SST = Stainless Steel
Temperature range: -425° to +400° F, (-253° C to +204° C) Inlet Pressure: 10 - 3705 psig, (0.69 - 255 barg) Outlet Pressure: 2.0" W.C. - 1500 psig, (0.04 - 103 barg) Options:
Body sizes:
End connections:
Body sizes:
1/2", 3/4", 1", 1-1/2", 2"
NPT, 150#, 300#, 600#, Integral Flanged, PN16, PN25, PN40 DIN, Flanged, BSP
1/2", 3/4", 1", 1-1/4", 1-1/2", 2", 2-1/2", 3", 4"
Maximum Cv: 50 Materials: Body
Maximum Cv: 198 Materials: Body
Temperature range:
-20° to +400° F, (-29° C to +204° C)
Body sizes:
End connections:
The Model DAP is a large piston/ pilot operated gaseous pressure reducing regulator.
SST SST
Inlet Pressure:
BRZ, DI, CS, Duplex SST, 316 SST BRZ, DI, CS, Duplex SST, 316 SST 17-PH SST, 316L SST, Monel
1/2", 3/4", 1", 1-1/4", 1-1/2", 2", 2-1/2", 3", 4"
Standard: Female NPT ASME Flanged: 125#, 150#, 250#, 300#, 600# DIN Flanged: PN16, PN25, PN40
Cover Dome
50 - 3600 psig, (4 - 248 barg)
Cover Dome
Maximum Cv: 198 Body/Cover Dome Materials
Trim
17-PH SST, 316L SST
Outlet Pressure:
Trim Seat
1225 psig, (84 barg)
PolyAll, V-TFE, GF-TFE, C+TFE, BC, NBR, FKM
The Model ULR-1 is an economical, high capacity,
Seat
V-TFE, PA, C-TFE
Diaphragm
Composition – BC, EPR, FKM, FK, NBR, FKM + TFE, Elast. TFE, Metal – Be-Cu
DI/DI, BRZ/BRZ, CS/DI, BRZ/DI, CS/CS, SST/SST, SST/DI, SST/CS DI = Ductile Iron SST = Stainless Steel BRZ = Bronze CS = Carbon Steel
NACE, Cleaned for O2 Service, Cleaned for Chlorine Service
Temperature range: -50° to +400°F, (-45° C to +204° C) Max Operating Pressure: 475 psig, (32 barg)
End connections:
precision regulator.
NPT, 125#-250#, 150#-600# Integral Flanged, PN16, PN25, PN40 DIN Flanged, Extended Pipe Nipples, Tube End Construction or BSP
MODEL PTR-1
MODEL DAO
Body sizes:
End connections:
Model PTR-1 is high performance, pressure loaded diaphragm-type, flow- to-open pressure reducing regulator. Design includes an internal pressure balancing piston-cylinder that provides high flow capacity and high pressure drop capability. Performance meets or exceeds that of competitive pressure loaded or pilot-operated designs. A back pressure regulator or "unloader" is piped to the top of the dome and is "set" to control the outlet pressure of the pressure reducing regulator. In addition, a low temperature probe (pneumatic controller) with an integral, rigid insertion bulb and invar rod is installed up-stream of the Model PTR-1. When the exposed outer sheath senses a change in the process temperature below the minimum temperature set point of the probe, it vents loading pressure from the dome of the regulator and allows it to close.
1/2", 3/4", 1", 1-1/4", 1-1/2", 2", 2-1/2", 3", 4"
Standard: Female NPT ASME Flanged: 150#, 300#, 600# DIN Flanged: PN16, PN25, PN40
Body sizes:
End connections:
Maximum Cv: 198 Body/Cover Dome Materials BRZ/BRZ SST/SST BRZ = Bronze SST = Stainless Steel
The DAO is a pilot-operated steam reducing regulator with a piston design. The internal pressure balanced plug/piston provides high flow capacity and moderate pressure drop capability. Much like the DAP, the ability to allow varying flows with little change in set pressure makes this an ideal regulator for high accuracy applications. Apply in steam service applications only.
1/2", 3/4", 1", 1-1/4", 1-1/2", 2", 2-1/2", 3", 4"
NPT, 125#-250#, 150#-300# Integral Flanged
Maximum Cv: 220 Materials: Body
Temperature range: -325° to +400°F, (-198° C to +204° C) Max Operating Pressure: 475 psig, (32 barg)
Temperature range:
+100 F to +406° F, (+38° C to + 208° C)
DI, CS DI, CS
Inlet Pressure:
Cover Dome
35 - 400 psig, (2.4 - 27 barg)
Trim Seat
17-PH SST
Outlet Pressure:
GF-TFE
2 - 215 psig, (0.13 - 14 barg)
The Model PTR-1 is a precise temperature control regulator.
The Model DA0 is a small piston/ pilot operated steam pressure reducing regulator.
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