B16.11 socketweld fitting deflection angle

[megavites]

In the 3d modeling world, we need to set a deflection angle for SW fittings. Looking at B16.11, pg 7.2, myself and another arrived at a real world deflection angle of .29 degrees. This allows a very small adjustment of pipe angle at a socketweld fitting.
Now, in the past, i have seen isometrics go to a fab shop with a .5 degree deflection, with no resulting pushback from the fab shop.
What have others seen in this case?

 

[TugboatEng]

It's exceedingly important that you do not allow the pipe to bottom out in your socket weld fitting. How do you intend to incorporate this into your deflection limits?

 

[megavites]

to be clear, I'm not a welder. I understand that there's a 1/16" gap at bottom of socket. Just trying to determine max. deflection. Here's an example of a previous project where this SW line was sloped 1/4"per foot. As you can see the vertical segment is not on a skew and 1.2 deg mitre's are shown. I don't think that's "real world" but we did not get pushback from the fab shop.

 

[TugboatEng]

I think you'll find how far you can actually go is going to vary greatly based on pipe OD tolerance as there will be the greatest amount of variance for that dimension.