Ratermann Manufacturing, Inc. Customer Service 1-800-264-7793 y Email [email protected] y Order Online at Web Store www.rmiorder.com 36A-7 HIGH PRESSURE RELIEF VALVE SERIES HPRV High Pressure Relief Valve Series HPRV High Pressure Relief Valve Description The Generant HPRV Series Relief Valve provides accurate crack pressure with zero leakage up to 98% of nominal set pressure. When properly specified, this factory preset, tamper proof design, is ideally suited for most any liquid or gas application. Encapsulating the o-ring seal within the poppet eliminates seal extrusion and cold flow characteristics. By guiding the poppet into the body, a line of contact seal is ensured and at high crack pressure settings, the o-ring is protected by a metal-to- metal stop between the poppet and the body. High flow design, com- bined with narrow band interchangeable springs, minimizes system pressure rise as flow demand increases. Available in brass or stainless steel and inline or discharge to atmosphere. Valves can be supplied with a manual pull ring override. Features and Benefits •100% Factory Present and Tested •Zero Leakage to 95 - 98% of Set Pressure •Tamper Proof Adjustment •Excellent Reseal Performance Technical Data • Set Pressure Range: 10 to 2400 Psig (0.7 to 166 bar) •Set Pressure Tolerance: Factory Preset +/- 5% on increasing pressure •Reseal: Elastomer Seals 90% - 95% of Actual Crack Pressure. PTFE may be slightly lower •Inline Valves (Series HPRV): Proof Pressure: 3700 Psig (225 bar) Burst Pressure: >5000 Psig (345 bar) •Temperature Range: -320˚F to 400˚F (-220˚C to 205˚C) (Based on seal selection, see ordering information) 1/8” - 3/4” NPT 10 - 2400 Psig HPRV Inline HPRVA Vent to Atmosphere HPRVM Vent to Atmosphere (Manual Override) Materials of Construction Component Valve Body Material Brass 303 Stainless Steel 316 Stainless Steel Inlet Body, Outlet Cap, Spring Chamber, Spring Retainer,O'Ring Spreader Brass, ASTM B16 303 SS, ASTM A582* 316 SS, ASTM A479* Poppet 303 SS, ASTM A582 Spring 302 SS / 17-7 PH ASTM A313 Locking Screw 18-8 SS Seals* As Speci.ed, See Ordering Informa.on Pull Stud Brass, ASTM B16 303 SS, ASTM A582 316 SS, ASTM A479 Pull Ring Plated Steel *Lubricated with Krytox ™ DuPont™ Krytox™, and Vydax® are registered trademarks or trademarks of E.I. duPont de Nemours and Company WARNING: Products in this catalog can expose you to chemicals including lead which is known to the State of California to cause cancer, birth defects or reproductive harm. For more information, go to https://www.p65warnings.ca.gov
