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Plumbing

How many turns of PTFE tape on radiator joints?

Anonymous user 1 March 2024 - 2.44 PM

I've always used 3 or 4 turns of PTFE on CH joints, but I've heard that more is necessary? (i.e. 10-12 turns). Could explain why a recent repair still leaked the first time?! :o) What's the views here? Update 4th Jan 2012 Thanks again guys for the comments. As you can see, everybody has different views, but I think with today's thinner PTFE tape I will change from my 4 turns (!) to 10-12? All comments very gratefully and thankfully received! Update 8th Jan 2012 Well, took it all apart and reassembled using 10-12 turns of PTFE where applkicable, and jointing compound on compression joints - and it all works without a single leak! Thanks to all for their invaluable assistance, I now know how to ensure leak-free raqdiator replacements for the future!

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8 Answers

Anonymous user

10 to 12 turns is what i usally use, and i never really have any problems using this amount. kind regards Gareth
Answered3 January 2012
8
Rigsby Handyman
Rating: 5 out of 555112 reviews
Southend On Sea
Hi, i think i use about 6 turns, but never thought of it that way ,when you tighten you can fill if they are biting nice, and make sure you wind them in as far as you can , kind regards colin.
Answered3 January 2012
8

Anonymous user

Usually use between 15- 20 wraps
Answered3 January 2012
7
Provini Trades
Rating: 5 out of 55557 reviews
Fareham
mostly times I am doing 12-13 turns- working always! it is a good practice to use on threats small amount of plumbing paste, too. Regards
Answered6 January 2012
3

Anonymous user

never had a problem after 7 turns but you will hear all sorts on here.
Answered8 January 2012
3

Anonymous user

If you have the new thicker tape then 3 turns will be fine however if you have the usual thinner tape at least 8 turns and to be absolutely sure use a jointing compound as well. Something like hawk white. Good luck
Answered3 January 2012
1
AJ Plastering & Building Services
Rating: 4.9 out of 54.9545 reviews
Bradford
10 to 12 should be sufficeint andy
Answered3 January 2012
1