1) downhole non-return valve
井下止回阀
1.
Describe the behavior and distinguishing feature of downhole non-return valves about separate zone water injection,and analyze on the structure of downhole non-return valves of pressure control and generalize the methods of extending the service life of downhole non-return.
阐述了分层注水用井下止回阀的工况条件和工作原理,分析了其结构和零部件的受力状态,总结了延长阀门使用寿命的方法。
2) downhole back flow valve
井下回流阀
4) check valve
止回阀
1.
Manufacture of great size check valve body seal surface;
大口径止回阀阀体密封面加工
2.
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
3.
The model and application of check valve in power plant;
电站止回阀的选型及应用
5) oil check valve
油止回阀
补充资料：见止回阀
分子式：
CAS号：
性质：见不可逆转变
CAS号：
性质：见不可逆转变
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条