SERIES-VRV

Vent Relief Valve (VRV)

Vent Relief Valve (VRV)
Vent Relief Valve (VRV)
Vent Relief Valve (VRV)

1/8” - 1” NPT
.5 - 150 Psig (0.03 - 10.3 bar)

Description

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.

Features

  • 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

Technical Data

  • Set Pressure Range: 0.5 to 150 Psig (0.03 to 10.34 bar)
  • Inline Valves (Series VRVI):
    • Proof Pressure: 400 Psig (28 bar)
    • Burst Pressure: >500 Psig (34 bar)
  • Set Pressure Tolerance: Factory preset
    • < 2 Psig (0.14 bar): +/-10%
    • 2 to 150 Psig (0.14 to 10.3 bar): +/- 5%
  • Reseat:
    • 80% of Set Pressure for valves specified 2 – 10 Psig (0.14 to 0.7 bar)
    • 92% of Set Pressure for valves specified 10 – 150 Psig (0.70 to 10.3 bar)
  • Temperature Rating: -320˚F to 400˚F (-195˚C to 205˚C)
    • (based on sealing selection)

Materials of Construction

  • Available in Aluminum, Brass or 316 Stainless Steel