May 17, 2005 #1 allwet Industrial May 17, 2005 2 I have a 4" Butterfly that leaks on a sch 80 pvc line for a aquarium on a salt water system. How can I replace it under pressure?
I have a 4" Butterfly that leaks on a sch 80 pvc line for a aquarium on a salt water system. How can I replace it under pressure?
May 17, 2005 #2 EdStainless Materials May 20, 2004 16,279 Freeze the line to plug it and then replace the valve. I have seen comcercial services that use liquid nitrogen to do this. = = = = = = = = = = = = = = = = = = = = Corrosion never sleeps, but it can be managed. http://www.trenttube.com/Trent/tech_form.htm Upvote 0 Downvote
Freeze the line to plug it and then replace the valve. I have seen comcercial services that use liquid nitrogen to do this. = = = = = = = = = = = = = = = = = = = = Corrosion never sleeps, but it can be managed. http://www.trenttube.com/Trent/tech_form.htm
May 19, 2005 #3 mshimko Materials Oct 27, 2004 364 Freeze a PVC line? Won't this present a high risk of cracking the PVC? Upvote 0 Downvote
May 19, 2005 #4 metengr Materials Oct 2, 2003 15,478 I would agree with mshimko - do NOT use a freeze plug on PVC material. Can you use a bladder or rubber plug on the inlet end of the piping? Upvote 0 Downvote
I would agree with mshimko - do NOT use a freeze plug on PVC material. Can you use a bladder or rubber plug on the inlet end of the piping?
