Thanks, Harry. Your mileage may vary a bit, but just check that it is biting as you wind it. At worst, start using 10 to 12 turns - if only to avoid your occasional leaks. Wind in and out half way. Jointing compound. Then wind all the way. Never leaks". Never had a leak yet using both and as its not pottable water, why not???? I also use a tread paste in all instance as a fail save.
I apply the paste on top of the thread. The best way is to get a plumber round to do the job that way there shouldn't be any great concerns for leaks". I also use jointing compound too as this tends to ensure solid leak proof joints, Hope that helps.
I don't like too much tape and in my mind, it's purpose is to seal. I'll use a small amount of lub if required, and usually that's only the left over from dressing any injured thread. RE: standard for number of turns of teflon tape What quality of tape is being used?
If it's the thin, cheap white junk sold at home improvement stores, you'll need more wraps than if you're using the heavy orange stuff, like T-Tape. Tape or dope is required to fill the spiral clearance between the crests and roots of pipe threads, as well as lubricate them. These threads are much more precise, and the crests and roots meet, to eliminate the spiral clearance.
Lubrication is still advisable, especially with stainless steel. RE: standard for number of turns of teflon tape Tapered pipe threads are an abomination, and should be outlawed. However, it has been my experience that a good quality pipe dope works better than cheap Teflon tape. RE: standard for number of turns of teflon tape You can always use a Loctite thread sealant like although clean up when removing is a little worse than good old teflon tape.
RE: standard for number of turns of teflon tape The biggest problem with screwed piping is that people think that anybody with a pipe wrench can do it. RE: standard for number of turns of teflon tape Personally, I tape the pipe threads like a hockey stick. Starting at the tip or far end, I put an overlap of about half the width of the tape between successive wraps over the full length of engagement.
My tendancy is to have a lot of tension on the tape itself, often it breaks so I need to start over again. But once at the top end, I repeat to go downwards to the point of starting. This way, the tape doesn't unwrap as you're torquing the plug.
There is no correct way, everyone is different. This embeds into the threads. I had some megalock blue and it couldn't be used on pvc at all. I still like rectorseal 5 or some green stuff the gas co use's,dont know the name but its some great stuff.
Packy,you are correct on the first two threads not needing tape on them. I have found out that if you put tape on all the threads you end up cutting off the tape and it usually ends up in the end of an aerator.
If installed correctly the tape should never come loose on the thread. But just like everythingelse it takes practice. I only use the tape on old pipe. Also if the tape is put on over the threads it could interfear with the flow and usually does get cut off. Helps compensate the different expansion rates of the two materials. On the shower arm, 4 wraps of teflon, a dab of paste, hand tight as tight as I can, and at least one more turn a pinch more if necessary to be pointing straight down with a tool inserted in the arm.
I just found this stuff: It's my new favorite stuff. I will buy some paste and use teflon as well. If it is going to crack it will crack when it is tightened.
I have never seen on crack afterwards. Fourteen footers will come in handy when they start laying threaded sewer mains. What do you think I think I have done a LOT more new and repair and they do not break unless it happens immediately when you assemble them. Search for plumbing parts on our sponsor's site:. Special thanks to our sponsor:. Over , strictly plumbing related posts. How to Show Images. Author: herbeapuce NY Hi. Re: how many turns of teflon tape for tight fit? Author: waxsealer MA It depends on the thickness of the teflon tape your using.
Post Reply. Author: kdog1 OH I always wrap approx. Today, the most standard industry term for plumber's tape is thread seal tape or thread-sealing tape. To further confuse matters, the term plumber's tape is often used to describe metal or plastic strapping with holes in it, designed to support pipe.
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