Circle Valve Technologies Inc. - PR-1 Series Pressure Regulators

The PR-1 Series is a versatile pressure reducing regulator designed to fulfill a wide range of needs in instrumentation sample systems and other applications such as semiconductor processing gases. Many features of the PR-1 make it ideal for a wide range of applications controlling pressures at low to moderate flows in gas or liquid service. 316L body material is used to facilitate welded connections. Stainless steel caps and adjusting screws prevent atmospheric corrosion and maintain appearance. Enhanced internal body surface finish of better than 25 Ra plus electropolishing allows easier cleaning and potentially less particle contamination in the flow stream.

Five different seat materials, three alternate orifice sizes and seven pressure control ranges with stainless diaphragms offer the user a wide spectrum of capabilities for pressure control with inlet pressures up to 6000 psig and standard operating temperatures up to 500º F (260º C).

Features & Specifications

Gas or liquid service
316L stainless steel, Inconel®, Teflon®, and Tefzel® (or optional main seat material choice) only in flow stream
Stainless steel cap with SS adjusting screw
Inlet pressures of up to 6000 psi
Adjustable outlet pressure ranges of 0 - 10, 0 - 25, 0 - 50, 0 - 100, 0 - 250, 0 - 500 and 0 - 750 psig
Operating temperatures of - 40º F up to +500º F (-40º C up to +260º C)
Bubble-tight shutoff under most conditions
Cv flow coefficients 0.025, 0.06, 0.20, and 0.50 (0.06 standard)

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Unit of Measure

Items	PR1-1A11A3C111 PR-1 Series Pressure Regulators List Price QUOTE Add To Cart Request Quote	PR1-1A11A3C114 PR-1 Series Pressure Regulators List Price QUOTE Add To Cart Request Quote	PR1-1A11A3C118 PR-1 Series Pressure Regulators List Price QUOTE Add To Cart Request Quote	PR1-1A11A3D111 PR-1 Series Pressure Regulators List Price QUOTE Add To Cart Request Quote	PR1-1A11A3D114 PR-1 Series Pressure Regulators List Price QUOTE Add To Cart Request Quote
Body Material	N/A 316L Stainless Steel
Seat Material	N/A Tefzel®
Max. Operating Pressure	N/A 3600 psig
Operating Temperature	N/A -40 to 66 ºC-40 to 150 ºF
Outlet Range	N/A 0 to 10 psig	N/A 0 to 10 psig	N/A 0 to 10 psig	N/A 0 to 25 psig	N/A 0 to 25 psig
Flow Coefficient (Cv)	N/A 0.06
Process Port Type	N/A 1/4" FNPT standard (1/4" FNPT gauge ports)
Port Configuration	N/A Standard
Diaphragm Type	N/A Standard diaphragm
Diaphragm Facing Material	N/A Teflon®
Diaphragm Backing Material	N/A Stainless Steel
Cap Assembly	N/A Standard, stainless steel	N/A Panel mount, stainless steel	N/A Tamper-proof, stainless steel	N/A Standard, stainless steel	N/A Panel mount, stainless steel
Surface Finish of Diaphragm Cavity	N/A < 25 Ra, Standard
Weight	N/A 1.9 lbs