Non-absorbent or water drainage at the end of the causes for the stuck valve, part of the blockage of water, high water or water leakage is too high.
水泵不吸水或不排水其原因多为底阀卡死，滤水部分淤塞，吸水高度太高或吸水漏气。
2
Water drainage hose, charging valve shall be kept open.
为排出槽内和排水管中的水，应使排水阀保持开状态。
3
Introduces technical characteristics, structure and working principle of oil automatic cut off drainagevalve, discusses the application of the valve in oil tanker areas.