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Posted by HeatPro on January 29, 2011 at 18:19:12:
In Reply to: Make up water pressure - steam system posted by Mark on January 29, 2011 at 16:58:09:
As a steam heating system should lose almost no water, returning it all to the boiler, most steam systems are hand fed without auto feed. An auto feed is more likely in a commercial building where less diligent maintenance is probable, so some losses are probable.
Leaving the pressure reducing valve at the factory setting somewhere around 15 psig is usual as a one-pipe steam system runs around 1 psig.
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