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Posted by tom stanton on February 08, 2002 at 08:31:41:
In Reply to: three elimante feed system posted by doug on February 07, 2002 at 18:34:11:
A 3 element feedwater regulator operates on 3 parameters, boiler water level, steam flow and feedwater flow. It is controled by computing or averaging relays (mechanical, electrical, pneumatic or any combination) receiving input from the 3 parameters, to control the final position of the feedwater regulating valve which controls the flow of feedwater to the boiler.
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