The utility model has reasonable structure, good check valve action and fire prevention action, easy assembly, long service life, stable performance and good effect.
2
由于泵站出站止回阀的作用，长输管道水击过程中会出现同步现象。
Under the effect of check valve, synchronization phenomenon is caused in the process of water hammering in long distance pipelines.
3
同轴、管内螺纹弹簧单导对夹式止回阀，专门用于防止水击作用和倒流现象。
The ALC? is an in-line, spring assisted, single guided "wafer" check valve designed to prevent "water hammer" and "reverse" flow.
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