State the causes and remedial measures of water hammer in pipes.

State the causes and remedial measures of water hammer in pipes.
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1 Answer

Answer :

Causes of water hammer: i. A water hammer commonly occurs when fluid flowing with high velocity in the pipe is brought to rest with a valve closes suddenly at an end of a pipeline system. ii. A pressure wave propagates in the pipe. 

Remedial measures of water hammer: i. Valve should be closed gradually. ii. A surge tank is used near valve. iii. Use pressure relief valve. iv. The turbine gates are opened gradually. v. Air chambers are provided on the upstream of valves on long pipe lines. 

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