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Re: Help needed for strange noises from steam coils


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Posted by Dean Stephens on April 16, 2002 at 04:50:17:

In Reply to: Re: Help needed for strange noises from steam coils posted by Kathiresan on September 12, 2001 at 22:42:28:

The problem you describe is common on low pressure steam heating coils. It is likely that there is insufficient differential pressure between the coils and the condensate return main for the condensate to flow away. Therefore the coils simply fill up with water and go cold. The banging you describe is caused by the incoming steam collapsing in the flooded coil causing violent pressure pulses.

The best solution is to fit a pumping trap at the outlet of the coil instead of a steam trap. The pumping trap will collect the low pressure condensate and boost it into the return main. The product was designed specifically to overcome the problem you describe.

If the banging is allowed to continue then you will find that your coil life is dramatically reduced and also the temperature control provided by the coil will be poor.


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