12" A-106B smls Pipe/Fittings Schedule true 40(.0406) verses 12" std (.375)
12" A-106B smls Pipe/Fittings Schedule true 40(.0406) verses 12" std (.375)
(OP)
Fly Ash service line any reason why you can't use standard wall verses schedule true 40. There's only thousands wall thickness difference.
Thanks in Advance !
Thanks in Advance !





RE: 12" A-106B smls Pipe/Fittings Schedule true 40(.0406) verses 12" std (.375)
Any client specs that dictate use of certain fittings? These questions can all influence the answer.
Generally, A106-B is allowed ofr most (typical) services in B31.3 work, AFAIK.
The wall thicknesses differ but not that much; 12" Sch. 40 is 10.31 mm. opposed to 9.53 mm. for 12" STD.
This requires some trimming of the weld bevel in order to account for high-low. This should also be documented in the WPS.
RE: 12" A-106B smls Pipe/Fittings Schedule true 40(.0406) verses 12" std (.375)
RE: 12" A-106B smls Pipe/Fittings Schedule true 40(.0406) verses 12" std (.375)
Thanks
RE: 12" A-106B smls Pipe/Fittings Schedule true 40(.0406) verses 12" std (.375)
RE: 12" A-106B smls Pipe/Fittings Schedule true 40(.0406) verses 12" std (.375)
stk
RE: 12" A-106B smls Pipe/Fittings Schedule true 40(.0406) verses 12" std (.375)
"Be aware that, unlike most standard pipe diameters, there are minor wall differences between 12 inch dia Std wall pipe and 12 inch dia Schedule 40 pipe. Unless otherwise directed by 18 September 2013, we will consider both 12 inch diameter Schedule 40 and 12 inch dia Std wall pipe equivalent under specification ABCXYZ 123.456 for use at plant [His Name Here] for the flyash piping. All flyash service pipe fittings and valves will conform to Specification ABCXYZ 123.456"
RE: 12" A-106B smls Pipe/Fittings Schedule true 40(.0406) verses 12" std (.375)
RE: 12" A-106B smls Pipe/Fittings Schedule true 40(.0406) verses 12" std (.375)
In a nuke service? Reject it!
RE: 12" A-106B smls Pipe/Fittings Schedule true 40(.0406) verses 12" std (.375)
Independent events are seldomly independent.
RE: 12" A-106B smls Pipe/Fittings Schedule true 40(.0406) verses 12" std (.375)
Good Luck!