Posted by carl on June 06, 2000 at 09:06:43:
In Reply to: Maximum copper levels in low pressure steam boilers posted by Paul on June 05, 2000 at 19:15:00:
: Where can I find the maximum level for copper in boiler water? I have the ASME recommended limits for fire tube boilers dated 1994, but it only covers copper in the feed water(<0.05mg/l) Our boiler is running consistently .5ppm and higher in the boiler water, while remaining below the ASME guide line in the feed water. What is going on?
The ABMA, American Boiler Manufactures Association lists the levels they consider as acceptabe based on operating pressure. Section VII Power Boiler ASME Code also lists the
levels considered acceptable. Boler copper below 600 psig should be kept below 0.05 ppm. If your pH is high in any system containng copper or copper alloys the copper will be
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