A compact, highly accurate, direct acting pressure relief valve. Factory preset to desired crack pressure and/or flow specifications. Internal adjustment provides tamper proof safety against inadvertent pressure changes.
Available vent to atmosphere or inline configurations in brass, aluminum and 316 stainless steel. Valves feature a Quad ring seal which provides for extreme accuracy and repeatability with a narrow reseat band. Optional deflector cap increases flow capacity and provides for deflection of discharge.
- Accurate and Repeatable Cracking Pressure
- 100% Factory Preset and Tested
- Zero Leakage to 95-98% of Set Pressure
- Tamper Proof Adjustment
- Excellent Reseat Performance
- Compact Size
- Set Pressure Range:
- Series VRV, VRVD, VRVI – 0.5 to 150 Psig (0.03 to 10.34 bar)
- Series VRVH, VRVHI – 150 to 600 Psig (10.3 to 42 bar)
- Set Pressure Tolerance:
- < 2 Psig: ±10%
- 2 to 150 Psig: ±5% (on increasing pressure)
- Reseat:
- 50% of Set Pressure for 0.5 – 1.9 Psig
- 80% of Set Pressure for 2 – 10 Psig
- 92% of Set Pressure for 10 – 150 Psig
- Temperature Range: -320° to 400°F (-195° to 205°C)
Based on sealing selection, see ordering information.
