Single Entry Valves - CAREFULLY tighten single Union Nut.

单进入阀门 - 小心紧固单活接头螺母.

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Single Entry Valves - slightly loosen single Union Nut.

单进入阀门 - 将单活接头螺母略微放松.

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Upon installation, a hand - tightened union nut serves to compress the face - seal of a Chemtrol valve.

一旦安装完毕, 手动旋紧的管接螺母就紧压着Chemtrol阀门的密封面.

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Remove the Model 7 from the line ( union nut and adapter remain in the line ).

从管道上拆卸型号7 ( 接头螺母和适配器留在管道上 ).

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