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Posted by biglou on November 26, 2003 at 13:40:44:
In Reply to: Water problems posted by Gary on November 24, 2003 at 06:38:14:
: Quick Question,
: My heating plant consists of A superior 508HP boiler & two bigelow 304HP boilers, my steam load is approx 8,000lbs/hr @ 98psi. My feed system is a Grundfoss pump set with a cap of 32-97 gal/min. we use a honeywell regulating valve set, and maintain back pressure with a 1-1/4" spence regulating valve. we maintain the press @ 125psi
: the Question is,
: Monday morning i receive my largest load demand. the boilers chug along fine but the feed system cant keep up therfore the boilers go out on low water.
: could my feed system be undersized? or is the key in the back pressure regulator?
hi gray my name is biglou was all the boiler running at the time or the
bldg ice cold and some body open the valve too fast
the feed water pumps are to go with the units
your feedwater tank & pumps may have be hot at the time and may be came steam bound need more inf biglou@comcast.net