Cyrus Shank 800QR-50 INSERT Replacement Insert, 1/2, 3/4, Stainless Steel

For optimal performance, the 800QR is the only Two-Piece valve that is made of all stainless steel parts (internal and external). The body is designed to remain in one system well beyond the standard replacement intervals, with a simple replacement of the insert when it comes time to change. Available in both threaded and welded connections.Key Features:National Board Certification #:   51163Set 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.