Preventing Water Hammer in Steam Plants

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Questions and Answers

What should be done if water hammer or vibration occurs while the non-return valve is being opened?

  • Increase the fluid velocity
  • Open the valve wider
  • Ignore the issue and proceed with opening the valve
  • Close the valve at once (correct)

In the boiler house, what is the first step suggested to address water hammer?

  • Check the boiler water level (correct)
  • Open the surface blowoff valve
  • Conduct a proper blowoff procedure
  • Lower the boiler water level

What is recommended if the boiler water is high during routine operation?

  • Lower it with the boiler blowoff valves (correct)
  • Close all drains
  • Ignore the high water level
  • Increase the pressure in the boiler

What should be done if the boiler is priming or foaming?

<p>Open the boiler surface blowoff valve (B)</p> Signup and view all the answers

What action should be taken if there is severe priming and water hammer in the boiler?

<p>Turn off the boiler and close the non-return valve (D)</p> Signup and view all the answers

What should be done to locate malfunctioning steam traps in case of water hammer in the plant?

<p>Open steam trap test valves or use other means (A)</p> Signup and view all the answers

After blowing out a trap strainer to remove blockage, what is the next step suggested?

<p>Place the trap on-line and recheck its operation (A)</p> Signup and view all the answers

What should be done if a trap fails to pass condensate after placing it on-line?

<p>Open the trap bypass to relieve condensate from the steam system (B)</p> Signup and view all the answers

What is advised if there are sagging steam lines observed in the plant?

<p>Report it to the shift engineer or chief engineer and fill out a work request. (C)</p> Signup and view all the answers

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