gaps in socket welded fittings

[lutherk1]

We specify a min. gap for socket weld pipe to be no less than 1/16". What is the maximum gap that should be specified?

 

[mgp]

This thread might help

thread174-10800

regards
Mogens

 

[donf]

I'd like to pose a related question that has bugged me for some time.

Is double welding a slip-on flange the same as leaving no gap in a socketweld joint?

Thanks,

Donf

 

[11echo]

What I've heard from some welder buddies, is the tolerances are 1/16" min. to a 1/8" max.

AND donf... slip-on flanges are different then socket weld flanges. Slip on flanges have no seat at the end of the fitting (like socket weld fittings do), you could literally slide a slip-on flange half way up the length of a pipe and locate the flange there. However a slip-on flange second weld is located in the bore of the flange about a 1/4" from the face. ALSO the 1/16" to 1/8" tolerances apply to the SW flanges too. Good Luck ALL! ...Mark