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Old 10-17-2013, 10:46 PM   #1
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Default Teflon tape question

Okay, please forgive my ignorance when it comes to this topic, okay? lol

I have a Heavy Duty kettle with ball valve, barb fitting, and thermometer from Morebeer. This past weekend I went to Home Depot and bought teflon tape to make waterproof seals because for plumbing I've always seen teflon tape used. Is it actually required in this instance and how much is necessary to use, because with the amount I used I cannot tighten the fittings all the way. I'll do my best to post a pic tomorrow but I need to leave for work now. Thanks so much in advance, everyone.


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Old 10-17-2013, 10:59 PM   #2
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For typical applications, I only wrap the fitting with about three wraps of tape. That is all you need to make a seal. Also, I am not sure what you mean about screwing all the way in. Pipe threads are tapered and design to stop. You can't screw a pipe thread all the way in. Also, make sure you wrap the tape in the proper direction. If you are screwing the fitting in CW you want to wrap the tape CCW.


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Old 10-17-2013, 11:09 PM   #3
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Three wraps is enough teflon with the standard tape. There are a couple of brands that are making thicker tape and only require about a wrap and a half but it's usually blue (for water), yellow (for gas) or pink (for stainless steel). If it's white in color you will be good with three wraps.
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Old 10-18-2013, 01:44 AM   #4
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It sounds like a common misconception that NPT fittings will fully thread together until no threads are visible. Most will mesh by 2 revolutions if not 3.
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Old 10-18-2013, 06:50 PM   #5
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=) Thanks everyone for the help. I truly appreciate all the responses. Are there any alternatives to using teflon tape, such as those little inserts used on the fitting for kegs? I don't know what they're called but they look sort of like a plastic ring that goes inside of the part being screwed on?
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Old 10-18-2013, 07:46 PM   #6
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I would stick with Teflon tape. I personally use nothing but blue monster tape and replace it once a year
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Old 10-18-2013, 07:56 PM   #7
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Quote:
Originally Posted by kevinb View Post
For typical applications, I only wrap the fitting with about three wraps of tape. That is all you need to make a seal. Also, I am not sure what you mean about screwing all the way in. Pipe threads are tapered and design to stop. You can't screw a pipe thread all the way in. Also, make sure you wrap the tape in the proper direction. If you are screwing the fitting in CW you want to wrap the tape CCW.
Shouldn't the tape always be wound in the same direction as you thread on?
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Old 10-18-2013, 09:07 PM   #8
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Quote:
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Shouldn't the tape always be wound in the same direction as you thread on?
No. I use it a lot on fuel systems & the like. Tipical US standard threads are right hand. That is to say,tightened clock-wise. so you wind the teflon tape counter-clock-wise,so that the act of tightening in the opposite direction doesn't unwind the tape. But rather tightens it.
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Old 10-18-2013, 11:32 PM   #9
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Quote:
Originally Posted by unionrdr View Post
No. I use it a lot on fuel systems & the like. Tipical US standard threads are right hand. That is to say,tightened clock-wise. so you wind the teflon tape counter-clock-wise,so that the act of tightening in the opposite direction doesn't unwind the tape. But rather tightens it.
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Old 10-18-2013, 11:33 PM   #10
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Quote:
Originally Posted by TxBeerGuy View Post
=) Thanks everyone for the help. I truly appreciate all the responses. Are there any alternatives to using teflon tape, such as those little inserts used on the fitting for kegs? I don't know what they're called but they look sort of like a plastic ring that goes inside of the part being screwed on?
Loctite and other companies make "liquid Teflon tape" but I don't recommend this. Whenever I use this at work I have issues. Stick with the tape.


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