PRESSURE REDUCING REGULATORS
BACK PRESSURE REGULATORS
MODEL P4 The Model P4 is designed for gases with inlet pressures up to 3600 psig (248 Barg). Standard adjustable outlet ranges from 1-10 psig (.07-.69 Barg) through 10-500 psig (69- 34.4 Barg). Flow coefficient of .6 Cv available. This versatile point of use regulator can be ordered with a variety of options to meet your system demands. Standard construction includes a 40 micron integral filter, adjustment knob, and diffusion resistant stainless steel diaphragm.
BACK PRESSURE REGULATORS
MODEL P5 The Model P5 is a piston designed regulator for gases and liquids with inlet pressures up to 3600 psig (248 Barg). Flow coefficient of 0.06. This general purpose use regulator can be ordered with a variety of options to meet your system demands. Standard construction includes a 40 micron integral filter, adjustment knob, and diffusion resistant stainless steel diaphragm. Body size: 1/4", 3/8", 1/2" Maximum Cv: .06 Materials: Body/Spring chamber 316L SST End connections: NPT Temperature range: -55° to 300° F (-48° to 149° C) Pressures: Options:
Just as pressure reducing regulators respond to and control changes in outlet pressure, back pressure regulators respond to and control changes in inlet pressure. These regulators modulate the discharge rate
to maintain a constant pressure on the inlet side. However, back pressure regulators are not safety devices and must not be substituted for code- approved pressure safety relief valves or rupture discs.
The Model P4 is a balanced
pressure reducing regulator.
MODEL BQ
MODEL BR The Model BR is a versatile back-pressure regulator, available either in a globe style or angular porting configuration. Controlling inlet pressures up to 200 psig, it can be utilized in a majority of the general industrial pressure relief applications.
Max Inlet: 3,600 psig (248.2 Barg) Max Outlet: 50-1,500 psig (3.4-103 Barg)
Temperature range:
Body sizes: 3/8", 1/2" Maximum Cv: .6 Materials:
The Model BQ is designed for lower flow installations to control flow rates not covered by Model 123. It is often used in economizer circuits. It is also a popular cryogenic regulator and widely used in chemical process services.
-45° to 275° F (-42.7° to 135° C)
Mounting Bracket, Panel Mount
Pressures:
Max Inlet: 3,600 psig (248.2 Barg) Max Outlet: 1-500 psig (.69-34.4 Barg)
Options:
Body/Spring chamber
316L SST Brass/6061 AL
Relief Valve
The Model P5 is a piston designed reducing regulator.
End connections:
Temperature range: -325° F to +600° F, (-198° C to +315° C) Set pressures:
FNPT, Tube End, Tri-Clamp
Body sizes:
1/4", 3/8", 1/2"
Body sizes:
Temperature range:
Materials: Body
3/8”, 1/2”, 3/4”, 1” 1-1/2”, 2”
-325° F to +400° F, (-198° C to +204° C)
DI, BRZ, CS, SST Spring chamber DI, BRZ, SST Trim BR, 316 SST Seat Metal-BR, SST –
Materials: Body
Set pressures:
Springs for 5-300 psig, (0.34 - 20 barg)
DI, BRZ, CS, 316 SST DI, BRZ, CS, 316 SST BRZ, 416 SST, 316 SST
Springs for 2-120 psig, (0.13 - 8 barg)
Spring Chamber
Pressure drop:
Pressure drop:
The Model BQ is for lower-flow and cryogenic applications.
Trim Seat
Up to 260 psid, (18 bard)
Up to 400 psid, (27 bard)
Composition-Buna-N, TFE, EPR, FKM Phos. BRZ, 302 SST, Neoprene, EPDM, Elgiloy
Metal - BR, SST, Composition- Buna-N, TFE, EPR, Neoprene Phos. BRZ, 302 SST, Neoprene, F.C. Elastomer, EPDM
Options:
Options:
Handwheel and locking lever, NACE Construction, Cleaned for O2 Service
MODEL P7 The Model P7 is a piston designed regulator that safely reduces inlet pressures of up to 4500 psig (310 Barg) and accurately delivers high gas flows throughout the 10-1500 psig (.69-103.4 Barg) range. This self-venting unit can be furnished as a non- venting regulator for hydraulic applications.
Closing cap, cryogenic construction, differential construction
Diaphragm
Body sizes: 1/2”, 3/4” Maximum Cv: 2.0 Materials:
Temperature range:
Diaphragm
-15° to 165° F (-25.0° to 75° C)
The Model P7 can handle pressure up to 4500 psig.
Pressures:
End connections:
End connections:
NPT, BSP, Flanged, Extended Nipples, flanges in ASME or DIN
Max Inlet: 4500 psig (310.3 Barg) Max Outlet: 10-1500 (.69-103 Barg)
NPT, flanges in ASME or DIN
The Model BR is a flow thru, back pressure regulator with set pressures up to 200 psig.
Body/Spring chamber Brass/Brass or 316 SST/316 SST
Options:
Dome Loaded, Ratio Loaded, Panel Mount
End connections:
FNPT, 300#, 600#, 1500# Flanges in SST
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