For foot valve, replace inlet end connection with an F. V. screen housing assembly.
对于底阀，用一个F.V。滤网外壳组件更换进口连接管接头。
Correct or replace foot valve.
校正或更换底阀。
Clean suction pipeline and foot valve.
清理吸水管路及底阀。
Easily converts Ball Check Valve to a Foot Valve.
能够轻易地将球体止回阀转换成底阀。
Easily converts Ball Check Valve to a Foot Valve.
能够轻易地将球体止回阀转换成底阀。
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