Analyses the relation between cooling ( heating ) quantity and rate, and the adjustable range of straight - through valve.

分析了盘管冷 ( 热 ) 量与水量的关系以及直通调节阀的可调范围.

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Before installation check line of flow through valve so that valve will function properly.

安装前,切断通过阀门的流体,以使阀门工作正常.

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Ball check opens away from ball check seat permitting flow of water through valve.

球型止回阀开启,从球型止回阀阀座离开,让水流经阀门.

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