Plast-O-Matic Valves, Inc.
1384 Pompton Avenue
Cedar Grove, NJ 07009 USA
Email: info@plastomatic.com
Relief Valves, By-Pass Valves, Backpressure Valves, Anti-Siphon Valves
also known as Backpressure Regulators & Pressure Sustaining Valves
2-Way & 3-Way, Angle and In-Line Designs for Corrosive Chemicals, Water and Ultra-Pure Liquids
True Blue® Relief Valves provide smooth, sensitive operation to help you manage pressure "upstream" of the valve.
One valve design serves many functions... • Preventing overpressure conditions in vessels and piping systems (relief valve). • Providing by-pass flow relief to avoid pumping problems such as deadheading (pump bypass valve). • Maintain backpressure in a piping system (backpressure regulator). • Enhance pump performance by maintaining backpressure on the pump outlet (pump backpressure valve). • Prevent gravity-induced siphoning through a pump, opening only when the pump is on (anti-siphon valve). • NEW! Series TRVDT 3-port design...the features of our state-approved RVDT now in a 3-way valve!
One valve design provides many outstanding features...
• Offer wide range of pressure settings with sensitive operation. • Provide smooth operation with higher flow. • Fail-Dry safety feature (not available on RVD or RVTX). • Each valve is individually tested prior to shipment. • No wetted metals; all external fasteners are stainless steel. • Maintenance-free designs. • Designs for crystallizing liquids. • Designs with no wetted elastomers for ultra-pure chemicals and water. Non-contaminating PTFE diaphragm designs. • Factory pre-set if requested. • Tamper-proof option.
Video introduction to the complete line of Plast-O-Matic Relief/Backpressure Valves:
Series RVD:
Angle pattern relief valve features a single flat elastomer diaphragm which is an advantage where salt crystallization problems can cause valve sticking. Seal materials are EPDM, Viton, Kalrez.
• Relief setting is infinitely adjustable from 5 psi to 150 psi. • Maximum inlet pressure is 210 psi. • Available in PVC, Natural Polypro, PTFE, KynarŪ PVDF, Sizes 1/4" & 1/2". • PTFE guides provide smooth, chatter-free operation. • Designed for low maintenance and easy to adjust. • Economical, heavy-duty design.
In-line design 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 (downstream side). • Relief setting is infinitely adjustable from 5 psi to 100 psi; 1/2" size is adjustable from 5 to 120 psi. • Maximum inlet pressure is 150 psi. • Available in PVC, CPVC, Glass-filled polypro, Kynar PVDF; • Sizes 1/2", 3/4" & 1". • Rolling diaphragm prevents crystallization. • Flat secondary diaphragm provides a second isolation of the control spring. • Designed for low maintenance and easy to adjust. • Economical, heavy-duty design.
Angle-pattern design features a smooth PTFE shaft to prevent chatter and sticking, and a triple u-cup seal to isolate the spring. RVT offers the Plast-O-Matic patented Fail Dry design for added protection. • Relief setting is infinitely adjustable from 5 psi to 100 psi. • Maximum inlet pressure is 150 psi. • Available in PVC, Corzan CPVC, natural polypro, PTFE, and Kynar PVDF; • Sizes 1/2", 3/4", 1", 1-1/4", 1-1/2", 2". • Not recommended for crystallizing liquids. • 3rd u-cup provides a second isolation of the control spring; design features the patented Fail-Dry safety vent. • Designed for low maintenance and easy to adjust.
In-line design features a primary PTFE diaphragm and a secondary support diaphragm which incorporates the Plast-O-Matic patented Fail Dry design for added protection. • Relief setting is infinitely adjustable from 5 psi to 100 psi. • Maximum inlet pressure is 150 psi. • Available in PVC, natural polypro, PTFE, and Kynar PVDF; • Sizes 1/4", 1/2", 3/4", 1", 1-1/2", and 2". • PTFE diaphragm provides high accuracy, prevents crystallization. • Non-wetted u-cup seal provides a second isolation of the control spring; design includes patented Fail-Dry vent. • Designed for low maintenance and easy to adjust. • Economical, heavy-duty design.
• Relief setting is infinitely adjustable from 5 psi to 100 psi. • Maximum inlet pressure is 150 psi. • Available in PVC, natural polypro, PTFE, and Kynar PVDF; • Sizes1/2", 3/4", and 1". • PTFE diaphragm provides high accuracy, prevents crystallization. • Non-wetted u-cup seal provides a second isolation of the control spring; design includes patented Fail-Dry vent. • Designed for low maintenance and easy to adjust. • Economical, heavy-duty design.
Angle-pattern design features a solid Geon shaft and PTFE thrust washer for reduced friction and to prevent chatter and sticking. The shaft works in conjunction with a sensitive rolling diaphragm that enables the valve to react quickly to pressure changes. The diaphragm also enables the valve to open more fully in less time. This high capacity valve provides rugged dependability for acids, salt solutions, and other corrosive liquids. Not recommended for applications with a vacuum on the outlet. • Relief setting is infinitely adjustable from 5 psi to 100 psi. • Maximum inlet pressure is 150 psi. • Available in PVC or CPVC; for other materials consult factory. • Size: 3" only. • Rolling diaphragm provides high accuracy, prevents crystallization. • Designed for low maintenance and easy to adjust. • Heavy-duty design with stainless steel external fasteners.
or e-mail info@plastomatic.com and request our complete Catalog RV.
HELPFUL LINKS:
What, How, Where & Why of Relief Valves explains the application of relief valves as backpressure valves, regular relief, anti-siphon, and how to select a relief valve.
Handy Selection Chart graphical chart compares the features, benefits and properties of all Plast-O-Matic relief valves, to assist you in your selection. Page is approx. 200K, so it may take a couple of minutes to load. (It is a copy of the contents page of our Catalog RV, so if you would prefer not to take time downloading, please click on the literature request link above.
Note: For complete information contact our Technical Sales group at 973 256-3000 to discuss your specific needs, or use the "Request for Quote" link to initiate the process.
