... Blow-off valve seat 放水阀座 Boiler safety valve 安全阀 Boilor check valve seat 止回阀座 Branch crystal 树枝晶 ...
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... non-return flap valve 止回瓣阀 non-return valve seat 止回阀座 exhaust non-return valve 排气止回阀 ...
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... 止回阀弹簧check valve spring 止回阀座check valve seat 夹心阀check valve ...
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重力球形止回阀可以变为通风阀，只需用漂浮球体更换标准球体，然后在安装时将阀门倒置，使其阀座向上即可。
Gravity ball check valves are converted to vent valves by replacing the standard ball with a floater ball and inverting the valve at installation-with seat up.
控制供应管道的水压。在总成的上游安装一个软阀座，弹簧负载止回阀。
Control supply line water pressure. install a soft seated spring loaded check valve upstream of the assembly.
每个止回阀应该都配置中心和边缘引导，确保可更换阀座密封和最小的局部磨损。
Each check valve shall be both center and edge-guided to ensure repeatable seating and minimize localized wear.
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