Backwelding thearded piping for hazardous chemicals
Backwelding thearded piping for hazardous chemicals
(OP)
what is the standard for backwelding thearded piping for sulfur dioxide ?
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Backwelding thearded piping for hazardous chemicals
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RE: Backwelding thearded piping for hazardous chemicals
RE: Backwelding thearded piping for hazardous chemicals
It is OK and a good idea for threaded pipe conveying any hazardous or dangerous fluid and gasses.
ASME B31.1 (1995) both permits and encourages what is called "seal welding" (See section 111.5 and 127.4.5)
Bear in mind that you have probably ruined the fitting for any possibility of dis- assembly.
Oh, and a thought process should also take place..... Why have threaded fittings in that system in the first place ? Why not make the entire system socket-welded ?
Good Luck !!!!
MJC