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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
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.
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