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1·Control supply line water pressure. install a soft seated spring loaded check valve upstream of the assembly.

控制供应管道的水压。在总成的上游安装一个软阀座，弹簧负载止回阀。

2·At this point the upper stem has lost contact with the diaphragms. The valve should be opened to this point but not back seated.

在此时，上阀杆已经失去了同横膈膜的接触。阀门应该开启到这一点，但不能反向固定。

3·The products are included metal seated Vulcan Power Valve, General Severe Service Series metal and ceramic seated Ball Valves and Signature Series metal and ceramic seated Ball Valves.

产品包括金属座铁匠电站阀门，金属座陶瓷座全能系列球阀，金属座陶瓷座超凡系列球阀。

4·The valve should be opened to this point but not back seated.

阀门应该开启到这一点，但不能反向固定。

5·The plug is seated in the body seats when the valve is in both open and closed positions.

当阀门处于开启和关闭状态时，阀塞都位于阀体阀座内。

6·As the shut-off valve is seated, a passage 41 in its stem connects with ports 42 in the guide bushing 37 so as to allow inlet air to pass though the valve stem to a housing port 44.

在关闭阀是坐在座位上，一个通过41个在其干连接与港口42轴套在指南37，使空气入口，虽然通过的阀干，一个住房端口44。

7·Clarify the design Peculiarity and classification and USES of resilient-seated gate valve.

阑述了低压铸铁弹性阀座闸阀的设计特点、分类和用途。

8·A step on the stem has now been back-seated against the upper portion of the valve body.

阀杆上的台阶现在已经坐落在阀体的上面部分上。