Are Lt. wt. fittings always seamless?

[ceenote]

Are Light weight fittings (eg. elbow, reducers) always seamless? Thanks

 

[LittleInch]

What do you mean by light weight? It is not a defined term that I am familiar with.

size is normally more important as is manufacturing technique.

Most B16 elbows and reducers I have seen are seamless.

why do you ask?

Remember - More details = better answers
Also: If you get a response it's polite to respond to it.

 

[BigInch]

Maybe to us light weight means ... plastic.
When asking engineering questions, you must be far more specific with the words you use when writing your questions.

 

[LittleInch]

It's like "heavy wall" pipe - it's only "heavy" when you know what you're comparing it to.

Remember - More details = better answers
Also: If you get a response it's polite to respond to it.

 

[Gator]

Could be that thin wall stuff used for (among other things) pulp and paper.

Piping Design Central

 

[moltenmetal]

If you mean sch10 stainless butt welding fittings, no- they are NOT always seamless, nor do they really need to be.

 

[ceenote]

I meant to say Lt. wt. steel fittings (elbows, reducers etc) of different sizes.
I am asking to know what the longitudinal seam factor would be. For instance seamless or ERW = 1 as longitudinal factor. Thanks

 

[LittleInch]

A similar post

http://www.eng-tips.com/viewthread.cfm?qid=368250

There is no change in anything whether the fitting is seamless or welded for the same material.

Most people try not to get the longitudinal seam lined up on connecting pipe / fittings, but other than that I don't know where you would use a factor like that on a fitting

Remember - More details = better answers
Also: If you get a response it's polite to respond to it.

 

[ceenote]

Thanks.