RPV Series Pressure Relief ValveS SIZES 1/4" TO 2" All Thermoplastic diaphragm Pressure Relief Valve for protecting against over-pressure in Chemical Feed Systems. When the preset pressure is exceeded, the diaphragm is forced up and the chemical flows out of the relief port, back to the chemical tank or the suction side of the pump. All valves are preset at 50 psi, however they are field adjustable via the adjustment screw. Relief valves should be set approximately 15 psi higher than the system pressure. Installation should always be made as close to the pump as possible, without any valves or accessories between the relief valve and the pump. Key Features DETAILED VIEW • VC, CPVC, PP or PVDF Body, and Noryl™ P Molded Dome • PTFE/EPDM Diaphragm • Spring: 10 – 150 psi (Spring pre-set: 50 psi) • 304 Stainless Steel Bolting • FNPT Threads • Adjustment Screw with Slot • VC, CPVC and PVDF rated to 250 psi @ 70°F/17.2 P Bar at 21°C, PP rated to 150 psi @ 70°F/10 Bar at 21°C OPTIONs • 2-port/90o • NSI or DIN/EN Threaded, Socket, True Union Socket A or Flanged End Connections • - 50 psi and 10 - 250 psi Springs 0 • TFE/FPM Diaphragm P Typical Applications • Chemical Dosing • Transfer and Processing • PVC Cell Class 12454 per ASTM D1784 • CPVC Cell Class 23447 per ASTM D1784 • PP per ASTM D4101 • Chlorination Systems Flow Control: Valves | Actuation & Controls | Strainers | Filters | Bulkhead Fittings & Tank Accessories | Pumps

RPV Series Pressure Relief Valves SIZES 1/4" TO 2" Parts List SPARE Parts 1. Valve Body - PVC, CPVC, PP or PVDF • ebuild Kit: Diaphragm, Compressor, R Adjustment Screw and Spring 3. Diaphragm - PTFE/EPDM or PTFE/FPM DIMENSIONS (INCHES / MILLIMETERS) VALVE SIZE in / DN PerforMANCE CURVE SAMPLE INSTALLATION PULSATING FLOW, USGPH Hayward is a registered trademark of Hayward Industries, Inc. © 2015 Hayward Industries, Inc. Contact Hayward Flow Control with questions: USA: 1.888.429.4635 • Fax: 1.888.778.8410 • One Hayward Industrial Drive • Clemmons, NC 27012 • Email: [email protected] Canada:...