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Posted by Tom Stanton on March 21, 2002 at 05:30:22:
In Reply to: Re: mud drum blow down posted by brian on March 20, 2002 at 19:36:01:
In 248 CMR (Code of Mass Regulations) 2.21 Boiler Blow-off Tank, it explains all the regulations pertaining to boiler blow-off tanks. Some of the important points are: the shell plate cannot be less the 3/8" thick, the water outlet shall not exceed 150 deg F, the tank shall be constructed in accordance to ASME Section 8 Code.
Some people think you can just put any old tank in line with the boiler blow-off piping. Years ago I did an accident investigation for an insurance company where I was told a "Blow-off" tank exploded. Come to find out, it was not a blow-off at all, it was a 55 gallon drum that someone connected up to a high pressure scotch boiler. What a freakin mess it was, obviously the insurance company did not pay for any damages, and thank goodness no one was injured.