1·Check the check valve spring.
检查逆止阀的弹簧。
2·Connect vacuum hose to booster check valve.
连接真空软管到增压器检测阀。
3·To test for tightness of second check Valve.
检测第二止回阀的密封性。
4·Easily converts Ball Check Valve to a Foot Valve.
能够轻易地将球体止回阀转换成底阀。
5·Gate, Globe, Angle and Check Valve Figure Number System.
闸阀，截止阀，角阀和止回阀型号编制体系。
6·It differs from a float shoe in that it lacks a check valve.
引鞋与浮鞋的不同之处在于引鞋没有节流阀。
7·The check valve seats shall be of molded thermoplastic construction.
止回阀阀座应该是模制热塑塑料结构。
8·Purpose: To test check valve No. 2 for tightness against reverse flow.
目的：检测止回阀2号对于回流的密封性。
9·But the variance of medium flow rate may affect the stability of check valve.
但介质流量的变化会给止回阀的稳定性带来影响。
10·Series 719 Double Check Valve Assembly shall be installed at each noted location.
系列719双止回阀总成应该安装在每个标注的位置上。
1·The adapter also includes a check valve to control fluid flow and provides a hydraulic cushion feature.
该适配器还包括一个单向阀来控制流体流动提供了一个液压缓冲功能。
2·A leeward side of the box is provided with at least one air outlet having a vent check valve.
所述箱体的背风面至少具有一个带有出气单向阀的出气口。