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Anderson Greenwood Direct Spring Operated Pressure Relief Valves Series 60/80
Premium direct spring relief valves use special internals and soft seats for optimal, accurate performance.
Key Features
- Type 84 innovative valve design provides leak-tight performance for H2 storage, transportation, refueling station and high-pressure gas applications.
- Type 84 direct spring pressure relief valve delivers exceptional leaktight performance for high-pressure gas applications up to 21,756 psig (1500 barg).
- Type 84 ensures safe and reliable operation of H2 storage and transportation, H2 refueling stations, and other high-pressure gas applications in Hydrogen, Air Separation and Oil and Gas industries.
- Soft seat design provides repeatable bubble-tight performance before and after each relief cycle.
- Leak-tight performance near set pressure allows higher operating pressure, resulting in increased process throughput and system optimization.
- Easily replaceable soft seat and seals eliminate expensive, time-consuming lapping of metal components, resulting in lower long-term maintenance costs.
- Externally adjustable blowdown on Types 81/83 allows precise adjustment of reseat pressure without affecting set pressure adjustment.
- Types 81/83 provide full lift at set pressure with no overpressure required.
- Minimizes possibility of freeze-up in applications involving a cryogenic or refrigerant and allows for D.O.T. applications to be set higher than Maximum Allowable Operating Pressure.
- Type 81P spindle design balances against the effects of back pressure without the use of a bellows, reducing both initial purchase and associated long-term maintenance costs.
- Meets ASME Section VIII and Section XIII requirements, providing the user with third party verification of valve capacity and performance.