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Large Diameter Slip On Flange

Large Diameter Slip On Flange

Large Diameter Slip On Flange

(OP)
I noticed B16.47 doesn't mention anything about slip on flanges - why is this? Is there some other standard that does?

RE: Large Diameter Slip On Flange

It's been a while, but I have used Alaskan Copper for some larger specialty flanges in the past.  As I remember, they have some of their own designs which are not exactly standard.

- Steve Perry
http://www.linkedin.com/in/stevenhperry

RE: Large Diameter Slip On Flange

(OP)
Thanks I checked out those websites, according to:

http://coastalflange.thomasnet.com/viewitems/industry-standard-class-150-flanges/tandard-class-150-series-a-slip-on-bolting-matches?

...there are no standards that govern 26"+ slip on flange dimensions.

I had already found dimensions based on industry practice in Trouvay & Cauvin Piping Equipment 2001... but our 36" slip on flanges have a smaller hub length than listed.

My next question is: What is the procedure for repairing slip on flanges? Would it result in funky hub lengths?

RE: Large Diameter Slip On Flange

from Texas Flange's catalog:

"For Slip-On's over 24" you must refer to either Industry Standard (which are not automatically covered by ASME) or Boiler Code Flanges."

texasflange.com - they have dimension tables for the large sizes

RE: Large Diameter Slip On Flange

There is an AWWA standard for plate-type flat-faced flanges up to very large sizes, used for waterworks service.

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