HELP!! Stainless Steel Pipe, Threaded Joints & Leaks
HELP!! Stainless Steel Pipe, Threaded Joints & Leaks
(OP)
Firstly, I am completely out of my depth here so I need advise.
I have an installation with a lot of SS piping (various dia 4" to 1¼". Many of the joints are threaded. We are planning to seal them and I was proposing loctite 567. Any one have experiences and procedures as to how to undertake this task and what to look out for? Piping is used for De-ionized water with Glycol for a colling plant.
Thanks for your input.
I have an installation with a lot of SS piping (various dia 4" to 1¼". Many of the joints are threaded. We are planning to seal them and I was proposing loctite 567. Any one have experiences and procedures as to how to undertake this task and what to look out for? Piping is used for De-ionized water with Glycol for a colling plant.
Thanks for your input.





RE: HELP!! Stainless Steel Pipe, Threaded Joints & Leaks
Why not use automatic orbital welding? You have a more reliable system.
Yes, you can use Loctite. I haven't done this in years so I am not up on the specific products. You need to know how clean the threads will need to be and you will need to control the amount of sealant used. Either too much or too little and you will not get acceptable results.
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RE: HELP!! Stainless Steel Pipe, Threaded Joints & Leaks
We were considering loctite as we should be able to proceduralize the work and have it done by local contractors.
RE: HELP!! Stainless Steel Pipe, Threaded Joints & Leaks
Here is a product that you might want to checkout if it is compatible with the process fluids.
http://www.xpando.com/pjc.html
RE: HELP!! Stainless Steel Pipe, Threaded Joints & Leaks
Any thread seal will work for a while, but with temperature cycling and chemical interactions I don't see it being a permanent solution.
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Rust never sleeps
Neither should your protection
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RE: HELP!! Stainless Steel Pipe, Threaded Joints & Leaks
We have a storied history of both threaded and socket welded SS fittings. We have found that additional time and expense of butt welded fittings more than pays for itself over time.
RE: HELP!! Stainless Steel Pipe, Threaded Joints & Leaks
My greatest concern is the interation of this product with the fluid and any contamination that it may intoduce in the network, also its ability to handle the wide temperature swings.
RE: HELP!! Stainless Steel Pipe, Threaded Joints & Leaks
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Rust never sleeps
Neither should your protection
http://www.trent-tube.com/contact/Tech_Assist.cfm
RE: HELP!! Stainless Steel Pipe, Threaded Joints & Leaks
I have talked with XPANDO and looks like an interesting product. I am also checking with site if butt-weling is a possibility.
RE: HELP!! Stainless Steel Pipe, Threaded Joints & Leaks
Loctite used to sell a special PST for stainless pipe, but I don't know what was really different about it, and I haven't seen it in a while.
All the help you could want from Loctite is just a phone call away. The local reps have always been quick to respond, and extremely helpful, even if you'll never ever buy a truckload of product.
Mike Halloran
Pembroke Pines, FL, USA
RE: HELP!! Stainless Steel Pipe, Threaded Joints & Leaks
I will draft out proceedures for my customer's approval using the guides you all have provided.
RE: HELP!! Stainless Steel Pipe, Threaded Joints & Leaks
Dik
RE: HELP!! Stainless Steel Pipe, Threaded Joints & Leaks
I want this next outage to be the last one for this reason.
RE: HELP!! Stainless Steel Pipe, Threaded Joints & Leaks
RE: HELP!! Stainless Steel Pipe, Threaded Joints & Leaks
eng256, If you are going to all of the trouble to dismantle, clean and reassemble that is a lot of work. I see why you don't want to do it again.
If go with butt welding make sure that there are requirements on the purging gas and the resulting color of the welds (inside and out).
= = = = = = = = = = = = = = = = = = = =
Rust never sleeps
Neither should your protection
http://www.trent-tube.com/contact/Tech_Assist.cfm