Encasing a flange?
Encasing a flange?
(OP)
I have a two sections of 10" pipe connected at flanges. The flanges look like they were made on-site when they were put in 35 years ago. One of the flanges developed a crack from one of the bolts. it's at the point where it drips to the floor and Marine-Tex didn't work as it has developed other drips when the water was turned back on and hard to tell since the pipe has been painted about 15 times. The section can't be taken out until next fall when we are doing an upgrade. Is there a sealant I can use to coat the entire flange in until a proper fix can be done. There are household applications but I need something more industrial. Anyone's suggestions would be appreciated.
Rob
Rob





RE: Encasing a flange?
If the leak is bad enough, there are various techniques such as a hot tap that can be used to repair/replace the segment.
RE: Encasing a flange?
RE: Encasing a flange?
You find thinks like this
www.pipelinecoupling.com/pages2/flange-leak-repair... or
www.teamindustrialservices.nl/team_products/pipe_r... or sealant like this
www.furmanite.com/services/on-line-leak-sealing-re...
Remember - More details = better answers
Also: If you get a response it's polite to respond to it.
RE: Encasing a flange?
RE: Encasing a flange?
What temperature?
What fluid?
What are the penalties if the "quick fix" fails? Any deadly or enviro penalties even remotely at rsik?
how much leakage?
RE: Encasing a flange?
RE: Encasing a flange?
RE: Encasing a flange?
RE: Encasing a flange?
Also look into composite wraps, if you can get the dripping to an acceptable level (not sure what leak rate can tolerated during installation) they can be pretty quick way to buy some time. It is just some fiberglass wrap wound around the pipe with a resin that cures to seal it all up. I think Team Industrial does this as well. Furmanite can too... "composite repair". These should be cheaper than the mechanical clamp that you said wasn't likely.
http://www.furmanite.com/services/composite-repair...
RE: Encasing a flange?
1. Years back with a prior licensed operator they decided to run the filters to waste during start up through the service pumps (vertical turbine) which is 12" to a discharge at a fire hydrant. Flow was not into the system. I think this created too much pressure on the piping.
2. I think the building itself has settled affecting the piping.
To actually correct the issue the piping should be replaced but I don't see that happening if they're working on a rebuild in September. I would like to find a thick sealant to coat those areas. I'm not in charge but I want to save myself the headache of a phone call about water running out the doors, which I have encountered before and it's not pleasant. It's just a case of the plant making a lot of money but none of that money goes back into the plant.