Generally socket welds are used in small bore piping. For long run pipes there is no need to cut the sw elbows. Slope can be provided in these small bore lines at the time of supporting in erection. Required slope surely will come due to piping weight and flexibility of small bore lines.
Regards,
Kuldeep
-----Original Message-----
From: Al [mailto:alwynk@shaw.ca]
Sent: Monday, October 25, 2004 12:27 AM
To: PipingDesign@yahoogroups.com
Subject: RE: [PipingDesign] Q&A Time: Socketwelded Piping Slopes
good question.
if the fabricator knows there has to be a slope he does not press/insert the
pipe fully into the recess of the socket weld.
the slight gap due to the tolerance on the fitting allows a little
angularity
when inserted and the pipe tipped donw insiude the socket.
hence they dont like when you tell them there has to be a precise or minimum slope, they likely cant do it. Its approxinate and they put on what slope they can.
otherewise they have to grind a little (say 1/128) out of the socket with
cylindrical grinder
and/or take off the same amount off the inserting end of the pipe.
Extra work.
-----Original Message-----
From: Paul Bowers [mailto:pbowers@pipingdesign.com]
Sent: Saturday, October 23, 2004 5:04 PM
To: PipingDesign@yahoogroups.com
Subject: [PipingDesign] Q&A Time: Socketwelded Piping Slopes
One thing I'd like to see on this list is more input from piping fabricators.
How are socketwelded lines sloped when it comes to a 90 degree elbow? A SW ell cannot be cut back like a BW one, and the tolerance of the fit is probably not enough to allow "fudging".
So how is it done?
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