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Relief, Backpressure, Bypass & Anti-Siphon Valves

Prevent system overpressure, regulate backpressure, provide automatic bypass, and eliminate siphon with high performance relief valves. 2-way and 3-way designs, straight and angle pattern, choice of elastomer or PTFE diaphragm design. ¼” – 3″ sizes.

Relief, Backpressure, Bypass & Anti-Siphon Valves

Prevent system overpressure, regulate backpressure, provide automatic bypass, and eliminate siphon with high performance relief valves. 2-way and 3-way designs, straight and angle pattern, choice of elastomer or PTFE diaphragm design. ¼” – 3″ sizes.

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rvdt270

Inline PTFE Diaphragm 2-way

Series RVDT/RVDTM is a universal automatic backpressure control valve for pressure relief, pump backpressure, pump bypass, anti-siphon, and backpressure regulator applications. Thermoplastic or Metal Valves designed for smooth, sensitive operation and the ultimate in corrosion resistance or ultrapure liquid handling with no wetted elastomers. Upstream pressure settings to 125 PSI on most models.

Available in Geon PVC and Corzan CPVC body materials in 1/4″- 3″ sizes; Natural Polypropylene and Kynar PVDF body materials in 1/4″ – 2″ sizes; PTFE body material in 1/4″ – 1″ sizes; Stainless Steel body in 1/2″ – 1″. A complete range of connection types available.

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Product Data Sheet Dimensional Drawing 1/4" - 2" Dimensional Drawing 3" Installation & Maintenance Instructions
trvdt270

3-Way PTFE Diaphragm

Series TRVDT is a high flow relief/by-pass valve with 3-port design, ideal for applications where minimal footprint is required or where use of a piping tee is impractical. Valve has a straight-through flow pattern when closed. When set point is exceeded, the diaphragm is lifted off the center port, and excess flows ìdownî and out through the third port at the bottom of the valve. 1/2″ – 1″ sizes in most popular thermoplastic materials and connections; 5 – 125 PSI set range.

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Product Data Sheet Dimensional Drawing Installation & Maintenance Instructions
rvt300

Angle Pattern 2-way

Series RVT/RVTX is a high capacity angle pattern valve for relief, bypass, backpressure and pump backpressure applications with excellent corrosion resistance. 1/2″ – 2″ sizes in most popular thermoplastic materials and connections; 5 – 125 PSI set range. 3″ size provides settings 5 – 100 PSI.

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Product Data Sheet Dimensional Drawing 1/2" - 2" Dimensional Drawing 3" Installation & Maintenance Instructions
rvd300

Compact Angle Pattern 2-way

Series RVD rugged compact designed for use as back pressure valve, straight relief, by-pass relief or back pressure regulator. 1/4″ and 1/2″ sizes in most popular thermoplastic materials and connections; 5 – 150 PSI set range.

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Product Data Sheet Dimensional Drawing Installation & Maintenance Instructions
rvdm270

Inline Rolling Diaphragm 2-Way

Series RVDM features a primary rolling diaphragm and a secondary flat diaphragm which incorporates the Plast-O-Matic patented Fail-Dry design for added protection. The rolling diaphragm provides greater sensitivity than non-diaphragm style relief valves, and is ideal for all applications without vacuum on the outlet. 1/2″ – 1″ sizes in most popular thermoplastic materials and connections; 5 – 100 PSI set range (5 – 125 PSI on 1/2″ only).

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Product Data Sheet Dimensional Drawing Installation & Maintenance Instructions