Connect differential pressure switch wire to the combination valve.
连接差速压力开关线至组合阀。
Purpose: To test operation of pressure differential relief valve.
目的：检测差压安全阀的工作性能。
Record this as the opening differential pressure of the relief valve.
将这个读数记录为安全阀的开启差压。
To introduce the structure, performance and design of the differential stop check valve.
介绍了差压式截止止回阀的结构、性能和设计要点。
A pressure differential relief valve is located in a zone between the check valves.
压差安全阀位于止回阀之间的区内。
Observe the apparent first check valve differential pressure (a - b).
观察第一止回阀压差(A- B)。
Connect differential pressure switch wire to the combination valve.
将电线连接到组合阀开关。
Connect differential pressure switch wire to the combination valve.
将电线连接到组合阀开关。
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