High-pressure check valves for non-return service at boiler-feed-pump discharge, with configuration selected against the pump operating range and system conditions.
Reverse-flow protection for boiler feedwater piping and associated high-pressure water systems. Size, pressure class and body material are selected for the project duty.
Check valves for reverse-flow protection in power-plant steam lines. Operating temperature, flow conditions and installation requirements guide the proposed configuration.
Automatic non-return service in boiler steam and water piping, coordinated with the project’s isolation arrangement and piping specifications.
Non-return service for auxiliary steam and high-pressure water circuits throughout the power plant.
Specify the required swing, lift, axial-flow or atmospheric-exhaust configuration, or provide operating data for engineering review. Selection should consider fluid, operating and design pressure and temperature, flow range, installation orientation, end connections and transient conditions.
Closing response, pressure drop and performance requirements are reviewed for the proposed design. Configuration names alone do not establish non-slam performance or suitability for every installation.
Typical U.S. project basis may include ASME B16.34, ASME B31.1 at piping-system level, API 594 or API 602 as applicable, API 598 testing, and ASME B16.10 / B16.25 / B16.5 / B16.47 interfaces. Final material, pressure, leakage and project documentation requirements are confirmed for the quoted configuration.
Manufacturer project experience; configuration-specific references are reviewed for the quoted valve.
