failed tubes on exchanger unit .
failed tubes on exchanger unit .
(OP)
We are experiencing recurring failure on tube-ends resulting from erosive action of quench water being redirected at velocity from division plate on channel end.
Does any one have experience of providing 'sacrificial' barrier on tube sheet and including 25mm. into tube bore.
Tubes are tube-end welded.
The suggestion has been made to fit stainless steel clad sheet which would include ferrules into tube.
a second suggestion has been to provide a protective film
but of what material.
Does any one have experience of providing 'sacrificial' barrier on tube sheet and including 25mm. into tube bore.
Tubes are tube-end welded.
The suggestion has been made to fit stainless steel clad sheet which would include ferrules into tube.
a second suggestion has been to provide a protective film
but of what material.





RE: failed tubes on exchanger unit .
RE: failed tubes on exchanger unit .
RE: failed tubes on exchanger unit .
RE: failed tubes on exchanger unit .
RE: failed tubes on exchanger unit .
RE: failed tubes on exchanger unit .
These were supplied by a UK company called Corrocoat Ltd. Contact was Simon Conroy tel 01132760760, website www.corrocoat.com
They come in all standard tube sizes/gauges and are typically 4-6" long. Generally they are a tight push fit into tube or a adhesive can be supplied. They are specifically designed to overcome erosion/corrosion in first few cm's of exchanger tubes.
RE: failed tubes on exchanger unit .
I suspect that there are several hundred tubes of small dia. so the question of beading and seal welding tube ends over the tubesheet is out of question.
RE: failed tubes on exchanger unit .
Try these people:
http://www.plastocor.com/waterbox.html
let us know what you finally decide upon....
MJC