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Products - Pressure Regulators
Below is a condensed section of our products. Consult factory for models not listed here and for custom or special valves for OEMs.
Metal Type
Threaded Npt
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PRH-04
High Pressure Regulator, balanced inlet (takes large inlet press range) Piston type valve, metal seated, spring operated 1/4"-2" NPT (see also flanged model PRH04-FLG) For water, chemicals, solvents, oil, air, gas Max inlet 5000 PSI (340 Bar) Max outlet 4500 PSI (306 Bar) spring operated, multiple spring ranges 303 & 316 Stainless steel, Hastelloy, Monel, titanium |
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PRH-04-EX
High Pressure Regulator, balanced inlet (takes large inlet press range) Piston type valve, metal seated, spring operated 1/4"-2" NPT (see also flanged model PRH04-FLG) For water, chemicals, solvents, oil, air, gas Max inlet 5000 PSI (340 Bar) Max outlet 4500 PSI (306 Bar) spring operated, multiple spring ranges 303 & 316 Stainless steel, Hastelloy, Monel, titanium |
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PRH09
Medium Pressure Regulator, balanced inlet (takes large inlet press range) Double Piston type valve, metal seated, spring operated 1/2"-2" NPT. Use this model where the single piston model PRH04 cannot handle the low outlet pressures that this model can. For water, chemicals, solvents, oil, air, gas Max inlet 1500 PSI (103 Bar) Outlet pressures from 20 psi(1.4 bar) to 450 PSI (30 Bar) spring operated, multiple spring ranges 303 & 316 Stainless steel, Hastelloy, Monel, titanium. Available with metal and soft seated construction with PTFE or Viton elastomers at reduced pressures. |
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PRH09-EX
Hastelloy C276, Monel, Titanium, Alloy 20: Medium Pressure Regulator, balanced inlet (takes large inlet press range) Double Piston type valve, metal seated, spring operated 1/2"-2" NPT. Use this model where the single piston model PRH04 cannot handle the low outlet pressures that this model can. For water, chemicals, solvents, oil, air, gas Max inlet 1500 PSI (103 Bar) Outlet pressures from 20 psi(1.4 bar) to 450 PSI (30 Bar) spring operated, multiple spring ranges 303 & 316 Stainless steel, Hastelloy, Monel, titanium. Available with metal and soft seated construction with PTFE or Viton elastomers at reduced pressures. |
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PRS-05
Very Low Flow, unbalanced inlet (not suitable for large inlet variations) Metal diaphragm, metal or soft seated 1/4"-1" NPT, 1/2"-1" flanged For water, chemicals, solvents, steam, oil, air, gas. Max recommended inlet 300 PSI (20 Bar) Max outlet 200 PSI (13.7 Bar) sizes 1/4-1/2". Spring operated using multiple spring ranges. see pricing tables. Body is rated to 600 PSI min(~41 Bar) 303 & 316 Stainless steel, Hastelloy, Monel, titanium, steel, some models in brass |
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PRS-06
Medium flow, unbalanced inlet, (not suitable for large inlet variations) Elastomeric diaphragm, rated temp to 350 Deg F (176 Deg C), 300 psi burst 3/8"-1" NPT, 1/2"-1" flanged For water, chemicals, solvents, steam, oil, air, gas Max recommended inlet pressure 150 PSI (~10 Bar) Max outlet 80 PSI (5.5 Bar) spring operated, multiple spring ranges Body rated for 300 PSI (~20 Bar) spring operated, multiple spring ranges 303 & 316 stainless steel, Hastelloy, Monel, titanium, steel. |
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PRS-09i
Low & medium flow, balanced inlet, (takes large inlet press range) Elastomeric diaphragm, rated temp to 350 Deg F (176 Deg C), 300 psi burst 1/2"-2" NPT (see also flanged model PRS09i-FLG) For water, chemicals, solvents, steam, oil, air, gas Max inlet 300 PSI (20 Bar) Max outlet 80 PSI (5.5 Bar) spring operated, multiple spring ranges Body rated to 300 PSI (20 Bar) 303 & 316 stainless steel & special alloys, Hastelloy, Titanium Alloy20 & Monel. Available with metal and soft elastomeric seat construction. |
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PRS-09i-EX
Exotic Aloys:Low & medium flow, balanced inlet, (takes large inlet press range) Elastomeric diaphragm, rated temp to 350 Deg F (176 Deg C), 300 psi burst 1/2"-2" NPT (see also flanged model PRS09i-FLG) For agressive chemicals liquids & gas. Max inlet 300 PSI (20 Bar) Max outlet 80 PSI (5.5 Bar) spring operated, multiple spring ranges Body rated to 300 PSI (20 Bar) Hast, Monel, Titanium, A20. Available with metal and soft elastomeric seat construction. |
Flanged ANSI B16.5
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PRH04-300 FLG
High Pressure 300 ANSI Flgd Regulator, balanced inlet (takes large inlet press range) Piston type valve, metal seated, spring operated 1/4"-2" NPT (see also flanged model PRH04-FLG) For water, chemicals, solvents, oil, air, gas Max inlet 5000 PSI (340 Bar) Max outlet 4500 PSI (306 Bar) spring operated, multiple spring ranges 303 & 316 Stainless steel, Hastelloy, Monel, titanium |
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PRS-09i-FLG
Low & medium flow, balanced inlet, (takes wide inlet press variations) Elastomeric diaphragm, rated temp to 350 Deg F (176 Deg C), 300 psi burst 1"-2" ANSI flanged and Sanitary (Tri-Clamp) flanges For water, chemicals, solvents, steam, oil, air, gas Max inlet 275 PSI (19 Bar) Max outlet 75 PSI (5 Bar) spring operated, multiple spring ranges 303 & 316 stainless steel, special alloys, steel |
Sanitary Tri-Clamp
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PRS09-TC-V
Low & medium flow, balanced inlet, (takes large inlet press range) Elastomeric diaphragm, rated temp to 350 Deg F (176 Deg C), 300 psi burst 1/2-2" Sanitary Tri-Clamp compatible flanges For water, chemicals, solvents, steam, oil, air, gas. Max inlet 150 PSI (~10 Bar) Max outlet 80 PSI (5.5 Bar) spring operated, multiple spring ranges 316 stainless steel |
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PRS11-TC
Bottom inlet, side outlet Sanitary Pressure Regulator. Use for low & medium flow and where low pressure differences must be maintained. Elastomeric diaphragm, rated temp to 350 Deg F (176 Deg C), 300 psi burst 1/2-2" Sanitary Tri-Clamp compatible flanges For water, chemicals, solvents, steam, oil, air, gas. Max inlet 150 PSI (~10 Bar) Max outlet 80 PSI (5.5 Bar) spring operated, multiple spring ranges 316 stainless steel |
Plastic Type
Threaded Npt
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PRS09i-P
Balanced inlet eliminates supply pressure sensitivity. PTFE wetted diaphragm. Available in 1/2"-2" NPT For water, chemicals, solvents. Max inlet 150 PSI with adjustable pressure range of 8-80 PSI. (5.5 Bar) Soft seat construction for positive shut off in EPDM, BUNA, or Viton ™. Configuration: Side inlet and side outlet constructed from PVC, CPVC, or PVDF. |








