查询词典 check valve

The following cases, to go with locator: 1, medium pressure high pressure big time; 2, valve diameter is large Forged Gate, Globe, Check Valves (DN 00); 3, high or low temperature control valve; 4, the action necessary to raise the speed control valve; 5, using standard signal, the operation of non-standard spring when the implementing agency (20 ~ 100KPa spring outside the range); 6, when used for sub-process control; 7, when the valve to achieve the reverse action (air to close each open-type gas conversion); 8, need to change the valve's flow characteristic time (you can change the positioner cam); 9, no spring actuator or piston actuator, the proportion of action to achieve the time; 10, electrical signals to operate pneumatic actuator must Distribution - gas valve positioner.

下列情况下，要配定位器： 1、介质压力高、压差大的时候； 2、调节阀口径大时（DN00）； 3、高温或低温调节阀； 4、需要提高调节阀的动作速度时； 5、用标准信号、操作气动管路截止阀非标准弹簧的执行机构时（20～100KPa以外的弹簧范围）； 6、用于分程控制时； 7、使阀门实现反向动作时（气关式和气开式互相转换）； 8、需要改变阀的流量特性时； 9、无弹簧执行机构或活塞执行机构，要实现比例动作时； 10、用电信号去操作气动执行机构时，必须配电-气阀门定位器。

Operation of the hoist gear box check valve flexibility.

11操作齿轮箱检查球阀的启闭灵活性。

An explosion accident of check valve taking in vacuum pipe line was analyzed.

分析了真空管道止回阀发生的一起爆炸事故，认为其原因是止回阀外密封泄漏，且密封腔无安全装置，提出了相应防范措施消除了隐患。

The assemblies, discussed on the preceding page and seen in the split-view drawing on this page, are to be installed on the supply side of a standard Chemtrol Ball Check Valve, replacing the union nut and end connector.

这种组件，正如上一页所讨论的，以及本页的剖视图内所见，是安装在标准Chemtrol球形止回阀的供应侧上，更换管接头螺母和端口连接件。

Use a check valve or trap in the discharge line to prevent hazardous back flow into the system.

输气时应使用逆止阀或阻火器，以防止回流进入气瓶的危险。

Use a check valve or trap in the discharge line to prevent hazardous back flow into the

输气时应使用逆止阀或阻火器，以防止回流进入气瓶的危险。

A check valve should be installed on return piping if there will be a pressurized return line or the trap drains to an overhead return line Fig.

如果存在一个压力回路，或者疏水阀排放口位于回路管道的上方，则应该安装一个止回阀。

The check valve shall utilize a single torsion spring design to minimize pressure drop through the assembly.

止回阀应该采用单个扭力弹簧结构以减少通过总成的压降。

The check valve shall utilize single torsion spring design to minimize pressure drop through the assembly.

止回阀应该采用单个扭力弹簧结构以减少通过总成的压降。

At the same time Nizhi check valve is tight, pipeline, the joint gas leakage there is, if they leak, demolished in the joints or painted lubricants blending paint, and tightening screws.

同时检查逆止阀是否严密，管路、接头有无漏气现象，如发现漏气，拆卸后在接头处涂上润滑油或调合漆，并拧紧螺丝。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了