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Posted by Bob D. on June 04, 2009 at 14:19:20:
In Reply to: non return valve posted by mike on January 25, 2009 at 09:39:15:
Might be a lot simpler to pipe up a F&T trap on the equalizer or a (new) water column, piped to drain (or condensate receiver). Set the F&T level at the max. boiler water level - when the water level rises due to condensing steam from the common header, the F&T "spills" the excess. During normal ops, it has very minor losses. No operator action required.
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