本MSS标准实践确立了相关要求 用于铜合金闸阀、截止阀、角阀和止回阀 用于有连接的应用程序，并连接到 无法承受压力和压力的材料 适用ANSI认可等级的温度 标准和MSS SP-80的要求。

This MSS Standard Practice establishes requirements for copper alloy gate, globe, angle, and check valves used in applications with connections and connected to materials which will not support the pressures and temperatures of applicable ANSI-approved Class standards and the requirements of MSS SP-80.