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1)  Slow closing inverted valve
缓闭逆止阀
2)  slow closure back pressure valve
缓闭止回阀
1.
Research on action of slow closure back pressure valve in water delivery system with air cushion surge tank;
设置气压式调压室的输水系统中缓闭止回阀作用的研究
3)  hydraulic control slow closing check valve
液控缓闭止回阀
1.
In pressure water supply pipeline,because of the designed hump and too rapid closing of hydraulic control slow closing check valve in the outlet,water hammer due to cavities collapsing was generated when the pump was closed.
在压力供水管路系统中,由于设计有驼峰且出水液控缓闭止回阀慢关过程过快,将导致正常关阀停泵时断流弥合水锤的产生。
4)  vaporizing slow-close check valve
汽化缓闭止回阀
5)  wee-resistance buffer valve
微阻缓闭止回阀
1.
For the long water supply pipeline, the prevention effect of adding hydraulic control butterfly valve at pump exit was better than that of installing wee-resistance buffer valve.
计算结果表明:正负水锤防护措施的有效结合,避免了严重的水锤压力,保证了管道运行的安全;对长供水管道,水泵出口安装液控蝶阀比微阻缓闭止回阀的水锤防护效果好。
6)  slow-closure-type valve
缓闭阀<液>
补充资料:止逆阀
分子式:
CAS号:

性质:又称单向阀或止逆阀。用于防止管路中流体倒流的一种阀门。使管路中流体只能作单方向流动,当流体倒流时,阀瓣能自动关闭,阻止倒流。按其构造可分为二类:升降式和旋启式(或叫摇瓣式)。升降式的阀瓣垂直于阀体通道作升降运动,阀体一般都设计成与截止阀的阀体通用。旋启式的阀瓣是围绕着密封面作旋转运动,阻力比升降式小,但密封性能较差。

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