100 PSI 1/2 FNPT X 3/4 FNPT Ductile Iron Relief Valve

This low capacity relief valve has been designed for use in small pressure vessels. The ASME certified slope of 0.73 yields, for example, a capacity of 9.3 lbs per minute of air @ 250# set pressure.Key Features:National Board Certification #:51253Set Pressure Range: 50-400 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.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.