Posted by Chris Davies on May 30, 2001 at 09:03:14:
In Reply to: Galvanized Pipe in Blowoff-Blowdown Systems posted by MJ Cronin on May 30, 2001 at 07:24:22:
: What is the reason that galvanized pipe is not permitted in Boiler Blowoff and Blowdown systems ?
: (See ASME B31.1 "Power Piping Code" para. 122.1.4 )
: Is the reason because the zinc coating will pose a health hazard as it degrades due to high temperature or is there another reason ?
: Thanks in advance !!
I'm not sure about the galvanized restriction, but you will need scd 80 pipe up to the second BB valve.
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