The only difference WRT to PDMS is, while taking MTO the elbow’s fall under Fitting's MTO and the bend’s will be a counted as part of the pipe and the length will be added to the pipe it self
[QUOTE=williams.richardson;63781]...
And More over if both bend and Elbow are going to server the same purpose means why do we need two different type’s No, they don't!
Bends need to be separately considered because they behave in manufacturing quite different to elbows. That's why two particular types make a lot of sense!
I agree that in terms of 3D-mathematics there isn't a difference between both.
[QUOTE=Shrik;63785]There is a diffrence on drawing part of Isometric as well....
Elbo will have 2 weld points where as bends wont show and welds.
If i am not worng those things are controlled by the Skey used in the Detref of the comp.