Relief Valves

Circle Seal Controls - 8100 Series Pressure Relief Devices (PRD)

State-of-the-art design, offering unexcelled safety performance

Features

  • Zero Leakage
  • No Fusible Material For Sealing
  • Extremely Stable
  • Meets PRD-1 Standard
  • Wide variety of end connections including Gyrolok®
  • Stable and consistent relief at 219° F (104° C)
Technical Data

Applications

  • Thermal relief
  • Quick dumping of tank pressure
  • CNG, LNG, N2, H2, Air and other gas applications up to 5000 psig (345 bar)

Specifications:

  • Operating Pressure: 0–5,000 psig (0–345 bar)
  • Proof Pressure: 7,500 psig (516 bar)
  • Operating Temperature: −65° F to +250° F (−54° C to +121° C)
  • Nickel-plated brass (standard) or 316 stainless steel
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