Repairing flange' surfaces
Repairing flange' surfaces
(OP)
Hi,
I have a damaged flange welded in a vessel, I am looking for repairing procedure, I have heard of inserting resin;
please check the pictures attached and let me know if there any solution or just remove the old one and replace it by a new one, do the hydrotest for the Vessel.
Thank you in advance
I have a damaged flange welded in a vessel, I am looking for repairing procedure, I have heard of inserting resin;
please check the pictures attached and let me know if there any solution or just remove the old one and replace it by a new one, do the hydrotest for the Vessel.
Thank you in advance





RE: Repairing flange' surfaces
Don't know about a resin process, may be one out there. I'd be leery of it though.
Regards,
Mike
The problem with sloppy work is that the supply FAR EXCEEDS the demand
RE: Repairing flange' surfaces
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P.E. Metallurgy, Plymouth Tube
RE: Repairing flange' surfaces
Something to consider if you are using the machine in place method is the proper cleaning of the area, not only so your weld is sound, but you don't want some residue fume. I suppose this also applies to the remove and replace method, but it is often overlooked in small repairs such as this.
RE: Repairing flange' surfaces
Regards
r6155
RE: Repairing flange' surfaces
RE: Repairing flange' surfaces
RE: Repairing flange' surfaces
Maybe. There is a reason that flange sealing surfaces have that grooved 'phonograph' finish. With a smooth face, the clamping force [minimum bolt torque/tension] needs to be greatly increased.
Smooth and flat/square, not wavy has usually worked for me, at pressures under 100 psi. I would not use smooth above 100 psi, or with toxic or flammable liquids.
RE: Repairing flange' surfaces