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 reseal band. Optional deflector cap increases flow capacity and provides for deflection of discharge.

• Set Pressure Range: 0.5 to 150 Psig (0.3 to 10.3 bar)
Inline Valves (Series VRVI):
• Proof Pressure: 400 Psig (28 bar)
• Burst Pressure: >500 Psig (34 bar)
• Set Pressure Tolerance: Factory preset +/- 5% on increasing pressure
• Reseal:
• 80% of Set Pressure for valves specified 1 - 10 Psig (0.07 to 0.7 bar)
• 92% of Set Pressure for valves specified 10 - 150 Psig (0.7 to 10.3 bar)
• Temperature Range: -320¢ªF to 400¢ªF (-195¢ªC to 205¢ªC)

(based on seal selection, see ordering information)

• Accurate and Repeatable Cracking Pressure
• 100% Factory Preset and Tested
• Zero Leakage to 95 - 98% of Set Pressure
• Tamper Proof Adjustment
• Excellent Reseal Performance
• Compact Size