Cyrus Shank 800D OP-275 Safety Relief Valve, 1/2", 3/4", Ductile Iron

This low capacity relief valve has been designed for use in small pressure vessels. The ASME certified slope of 0.216 yields, for example, a capacity of 4.8 lbs per minute of air @ 250# set pressure

• National Board Certification #: 51253
• Set Pressure Range:  250-300 PSI in 25 PSI  increments.
  • Special Settings can be made at no extra charge and typically takes 1-2 extra days;
• Each valve undergoes 3 separate test sequences for set pressures and seals, and then are lock-wired for security.
• 50-400 PSI Set Pressure Range Coming Soon ***
• All Cyrus Shank relief valves are manufactured in accordance with ASME Boiler and Pressure Vessel Code Section VIII Division I and stamped with the ASME Certification Mark with UV Designator.
• All Cyrus Shank relief valve capacities are certified by the National Board of Boiler and Pressure Vessel Inspectors and stamped with the NB Certification Mark.

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