应当注意，出口止回阀不能装反或出现卡死现象。
It should be noted that exports can not check valve or a card with the anti-death phenomenon.
应当注意，出口止回阀不能装反或出现卡死现象。
It should be noted that the outlet check valve cannot be installed backwards or stuck.
在这种位置，安全阀位于第一止回阀下面，使得这个区能够通过安全阀出口排放。
This positions the relief valve below the first check valve, enabling the zone to drain through the relief valve outlet.
注意：在泵出口处，首选止回阀是管内弹簧负载，配置杠杆和重量旋启式结构，或杠杆和弹簧旋启式结构。
NOTE: On pump discharge, the preferred check valves are in-line spring loaded, swing design with lever and weight or lever and spring.
在泵出口处，首选止回阀是管内弹簧负载，配置杠杆和重量旋启式结构，或杠杆和弹簧旋启式结构。
On pump discharge, the preferred check valves are in-line spring loaded, swing design with lever and weight or lever and spring.
在循环泵进出口之间设置带止回阀的旁通管。
And a by-pass pipe with check valve is set between the inlet and outlet of circulating pump.
止回阀是防止介质倒流的自动阀门，流体从进口侧流向出口侧。
Check valves are automatic valves to prevent the media back, fluid from the inlet to outlet side to side.
止回阀是防止介质倒流的自动阀门，流体从进口侧流向出口侧。
Check valves are automatic valves to prevent the media back, fluid from the inlet to outlet side to side.
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