... pump inlet check valve 泵进口止回阀 ; 泵入口单向阀 pump outlet check valve 泵出口单向阀 metering pump outlet check valve 计量泵出口单向阀 ...
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metering pump outlet check valve 计量泵出口单向阀
And a by-pass pipe with check valve is set between the inlet and outlet of circulating pump.
在循环泵进出口之间设置带止回阀的旁通管。
Add the resistance in the outlet to lower the capacity. Check the resistance in the suction pipe of pump. Check the bottom valve and lower the high of suction position.
增加出水管阻力以减低流量，检查泵吸水管内阻力，检查底阀减小吸水高度。
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