Cyrus Shank 803-250 Safety Relief Valve, 1/2, 3/4, Ductile Iron

The 803 relief valve has an angle style and a larger outlet size. The ASME certified slope of 1.978 yields, for example, a capacity of 43.7 lbs per minute of air @ 250# set pressure.Design Features:National Board Certification #: 51129Set 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 securityAll 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.