Hello

There has been a failure on a 4" GRE hubless (heavy duty)flange to one of our offshore Drill water systems. Pipe and fitting material is Bonstrand series 7000M.

I am looking for the following information:

- Allowable load for a GRE flange joint (don't tell me to ask for the vendor)

The temperaure limit for the GRE 7000M pipe is rated to 93 degree C, but the flow temperature was reported to 115 degree C when the failure occured, even though line operating temp is ambient. I suspect that higher temp may have caused a failure on the joint.

Your advise and any information would be most appreciated.


Regards
STC