Can an electric slow-opening valve be used to control the water hammer effect when a pump starts?
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Can an electric slow-opening valve be used to control the water hammer effect when a pump starts?
Sure, an electric valve is a valve that opens slowly, designed to prevent water hammer. It takes at least ten to twenty seconds to open
1. Water hammer is related to factors such as the density of the medium, pipe length, and the rate of change of flow velocity. 2. Among these influencing factors, some are inherent characteristics of the pipeline that cannot be changed, while the rate of change of flow velocity can be controlled manually. 3. Increasing the time it takes for the valve to close is an effective way to reduce the rate of change of flow velocity, thereby mitigating the water hammer effect
What they are referring to is the water hammer effect that occurs when the pump is turned off; the water hammer effect that occurs when the pump is started cannot be eliminated using valves. There is a type of water hammer suppressor designed specifically to eliminate this kind of water hammer.
The standard procedure for starting a pump is to open the valve first and then start the pump; this way, the valve has no effect on the water hammer generated by the pump. An electrically controlled valve that opens slowly prevents water hammer from occurring when the valve is closed. There are now valves that can be closed and opened quickly without causing water hammer.