Manufacture of great size check valve body seal surface;
大口径止回阀阀体密封面加工
Measure and analysis about the leakage rate in sealing test for metal-seated check valve covered in GB standard;
相关标准对金属密封副止回阀密封试验泄漏率的规定及分析
The model and application of check valve in power plant;
电站止回阀的选型及应用
detector check valve meter
探测器止回阀的水表
Series774 XDCDA Double Check Detector Assemblies are designed to prevent the reverse flow of polluted water from entering the potable water supply.
系列747XDCDA双止回阀检测器总成用于防止污水回流进入饮用水系统中。
Check Valve 1;Check Valve 2;Check Valve 3;Screw-down
止回阀 1;止回阀 2;止回阀 3;旋拧阀
Test ports shall have internal check valve and be equipped with caps.
测试端口应该内置止回阀并配置阀盖。
Our main products include steel gate valve, globe valve, check valve, ball valves, forged steel flange, pipeline strainer and so on.
主要有：各种材质闸阀、截止阀、止回阀、球阀、法兰及过滤器等。
Type of valve- gate, globe, check, etc.
阀门种类：闸阀，截止阀，止回阀，蝶阀，球阀，等等。
Purpose: To test check valves for tightness in the direction of flow.
目的：检测止回阀在流向上的紧固性。
For use with backflow preventer test cocks to protect from damage.
用于防回流阀测试旋塞，防止受到破坏。
check-valve mounting bracket
止回阀(装置)托架
dual way check valve
双向止回阀（双通单向阀）
Purpose: To test check valve No. 2 for tightness against reverse flow.
目的：检测止回阀2号对于回流的紧密度。
Now bring the check assembly through the check retaining wall.
现在将止回阀通过止回阀护壁取出。
This is a gate valve (check valve, butterfly valve, cut-off valve, magnetic valve, remote valve, relief valve, throttle valve, cock).
这是一个闸阀（止回阀、蝶阀、切断阀、电磁阀、遥控阀、安全阀、节流阀、旋塞）。
Remove first check module from module adaptor, and repeat above procedure with second check module.
从模块适配器上拆卸第一止回阀模块，对于第二止回阀模块重复上列步骤。
Use a pressure reducing regulator or separate control valve to safely discharge gas from cylinders. Use a check valve to prevent reverse flow into the cylinder.
使用减压调整器或单个的控制阀来安全地从钢瓶中排出气体。采用止回阀，防止回流入钢瓶。
General purpose industrial valves-Casting iron globe valves and lift check valves
GB/T12233-1989通用阀门铁制截止阀与升降式止回阀
Never reverse flow through a regulator or rely upon it to act as a check valve. It will not perform this function.
禁止通过调整器倒流或依靠它作为止回阀。它不允许执行这个功能。
Application of Test Technology with Packer-valve Water-pressing Assembly in Goaf Backfill Project
止水栓塞封隔-阀式压水器组合检测技术的应用