AIR C R A FT Over Pressure Relief Valve - VACCO
AIR C R A FT Over Pressure Relief Valve - VACCO
AIR C R A FT Over Pressure Relief Valve - VACCO
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<strong>Over</strong> <strong>Pressure</strong> <strong>Relief</strong> <strong>Valve</strong>V1D10911The <strong>Over</strong> <strong>Pressure</strong> <strong>Relief</strong> <strong>Valve</strong> (OPRV) is used to ventthe fuel tanks of the Sikorsky CH-148 Helicopter. Thevalve mounts directly to the fuel tank.In flight, the OPRV is normally closed disabling therelief function. The valve has an arming port, whichsenses fuel pressure during either ground or aerial refueling.When armed, the valve prevents over pressurizationof the fuel tanks.<strong>AIR</strong>CRA<strong>FT</strong>Features• Mounts in fuel tank• Relieves fuel overboard• <strong>Relief</strong> only available during refueling• Zero leakage• High flow rate• Low cracking pressureOperating ParametersArming <strong>Pressure</strong> .................................................5 psigCrack <strong>Pressure</strong> ..............................................1.75 psigProof <strong>Pressure</strong> ................................................120 psigBurst <strong>Pressure</strong> ................................................240 psigFlow ............................................ 60 GPM @ 2.75 psigTemperature .......................................-65°F to +160°<strong>FT</strong>emperature Non Operating ...............-65°F to +180°FWeight..................................................66 Kg (3.1 lbm)Performance characteristics are based on customer requirements. As such, they are not representative of component capabilities or limitations.<strong>VACCO</strong> Industries | 10350 Vacco Street | South El Monte, CA 91733T: (626) 443-7121 | F: (626) 442-6943 | E: aircraft@vacco.com | W: www.vacco.comA Subsidary of ESCO Technologies Inc.© <strong>VACCO</strong> Industries Rev 9/12
Envelope DrawingsV1D10911Bottom ViewSide View<strong>VACCO</strong> Industries | 10350 Vacco Street | South El Monte, CA 91733T: (626) 443-7121 | F: (626) 442-6943 | E: aircraft@vacco.com | W: www.vacco.comA Subsidary of ESCO Technologies Inc.© <strong>VACCO</strong> Industries Rev 9/12
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