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新型水锤防护设备———液控缓闭蝶阀在断电时可按预定关闭时间及开启度分快、慢二阶段关闭 ,能有效地降低管网中压力的波动 ,减少流体在管网中的水锤危害。下面介绍该阀选型设计中要注意的问题。1 关闭时间及开启度的确定液控缓闭蝶阀关闭时间及开启度的确定一般是根据泵站的
New water hammer protection equipment --- Hydraulic control slow retreat butterfly valve in the power off time can be scheduled to close and open the degree of points fast, slow two-stage closure, can effectively reduce the pressure fluctuations in the pipe network to reduce the fluid in the pipe network Water hammer harm. The following describes the design of the valve selection should pay attention to the problem. 1 closing time and the opening of the determination of liquid controlled retarder butterfly valve closing time and the opening of the determination is generally based on the pumping station