FRP flange torque calculation

[hendra1970]

Dear All,
I'm trying to work out the required torque for the FRP flange,both Tank Manways or pipe flanges, any idea what's the best reference to use?

I have look thru ASME VIII and it doesn't seem to address the torque calculation for flat face flanges. Also, I believe there is a need to consider the limitation of the FRP material during torque.

How to determine the torque value while considering the limitations of the FRP material.

Appreciate some advice here.

Thanks!

Rgds,
Hendra

 

[ricklts]

best I can think of would be the flange manufacturer - for recommended torque/bolt load and maximum bolt load to prevent damage - or the gasket/seal supplier - for required sealing loads?

 

[MintJulep]

If the flanges are a proprietary design then the manufacturer.

If the flanges are made to some standard then it is defined.

 

[Tmoose]

Looks like OP Hendra joined on May 5 and hasn't been back since May 6.