Everything You Need to Know About TEFLON Tape (PTFE) | GOT2LEARN
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- Опубликовано: 8 май 2024
- Title says it, everything you'll ever need to know about Teflon tape (PTFE)!
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Here are the links to the tapes you saw in the video (Affiliate)
White Teflon (PTFE): amzn.to/371Gvzf
Yellow Teflon (PTFE): amzn.to/3eMuOyU
Pink Teflon (PTFE): amzn.to/30bFmDF
Green Teflon (PTFE): amzn.to/3gUztkd
Stainless steel Teflon (PTFE): amzn.to/2Mwaaam
Timestamps
Start - 00:00
What is Teflon tape (PTFE)? - 00:19
How do you apply Teflon tape - 02:12
How to remove Teflon tape - 03:48
Different grades (colors) - 04:04
DISCLAIMER: Got2Learn is NOT responsible for any damage done to a property of which the plumbing wasn't done by a professional, I do not recommend doing your own plumbing if you are unsure about what you are doing, always hire a LICENSED contractor when doing any type of plumbing so you can be covered by insurances if something does happen, these videos are for entertainment purposes only!
Hey man I got started as a maintenance technician a couple years ago and I could not believe that your content was free, you're the reason people at work think I'm some kind of plumbing genius and I owe my career to you. Your content is invaluable and you're an absolute saint.
Wow, thank you so much Jonothan!!!!!!!!
What a freakin compliment that is. Thats awesome
@@Papi4l2 Crazy huh ?!
I mean just look at what you do man, you have an absolute wealth of knowledge available for beginners and experts alike to take a look at. Your channel has amazing value to young techs and DIY folks wanting to grow their knowledge and skills.
Now you know how to make someones day bud, thanks a million man, this channel needs more like you!!! Cheers!
BRAVO....I've been an industrial troubleshooter for 50 years. When plumbing is involved, it is very common to find small pieces of tape lodged in control valves, etc. I quickly learned that it was a very bad idea to put tape on the very first thread, and I have been teaching practice to everyone that I have come in contact with. However, you are the first one that i have every encountered on the web that was wise enough to also teach this practice!
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I started this video thinking, "how could you possibly make a video this long about...PTFE?", and was humbled to learn something fundamental in the first few moments. Well done.
Thank you Johnathan! 🙏🙏🙏
Thought i knew, could fill a page w/all i didn't! Thank you. What you do is appreciated, makes the world a safer place!
Its very rare to find such a thorough and intelligent coverage. I did a 4 year apprenticeship 40 years ago, using lots of thread taped joints, and was an engineer using small pipes for 30 years in the offshore oil industry. New to me are the different types of tape available. The most important thing (you mentioned it) was to leave the first thread bare. That single fact resulted in THREAD TAPE BEING BANNED in offshore and petrochemical pipe applications, because even "trained" technicians couldnt always be trusted to do it, resulting in small fragments floating around and blocking tiny measurement / control orifices, causing shutdowns. Since about 20 years ago they are only allowed to use special jointing fluid instead.
Great site. Keep it up.
Schaun.
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Hi! I just wanted to thank you for all your tutorials videos. Especially the ones on copper soldering. Because of these I made multiple succesful reparations in my house that was built in 1961. I never made a single solder before and now I am getting good at it. Thanks again! Great videos!
Awesome Jean-Marc, that's very good!
I often use a single wrap of white Teflon on plastic fittings in underground irrigation. Grey pvc has pretty strong friction with itself and the tape lets you get much better thread engagement, and way better control when you need a fitting pointing in the right direction. It never occurred to me that the lubrication was kind of the point for all pipe threads. Great video!
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Thanks for the comprehensive information regarding Teflon tape. Your taking the trouble to back your comments with definitive data technical publications is much appreciated as is your straight forward presentation style. Cheers!
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Thank you for this good presentation. And RUclips suggesting this video. I learned something. I also applied Teflon tape on many occasions ignoring 95% of what was explained here.. till now. Not mentionned in this video is the reaction of Teflon tape to tightening-loosening-tightening again. It seems that Teflon tape is not designed for this and that it gets unreliable in such a situation. I was told by plumbers who dislike Teflon tape for this reason and prefer to go for classic hemp or flax instead.Because flax allows the user to screw a pipe in and out again without diminishing the capacity to seal pipes of the flax. We have such situations when something like a water tap must be positioned in a certain angle and readjusted slightly when the last turn is done and it turns out that a turn backwards of the tab is required. By the way I discovered "Locktite" sealing cord which I definitely prefer to this Teflon tape and recommend it because it also allows the parts to be moved in and out without diminishing the sealing effect.
I never knew there were so many different colors and types of teflon tape. Great video.
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Gosh they don't come in different flavours..
Everything you ever wanted to know about teflon tape but were afraid to ask. Very informative video. Thanks
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Absolutely brilliant video on a product that is often overlooked but is so important in making connections work, Thank you!
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I dig your accent, it's super unique!
Very informative video, I never thought about the tape's primary purpose being to lower friction instead of sealing the threads itself!
Glad it was helpful!!!
just got a fresh job at a plumbing company in Ottawa and really focusing on watching your videos now since I know you're a Canadian and a fellow Ontario resident!
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There is also Carbon impregnated tape as well - It is used where electrical conductivity is needed
Thank you very much for giving Useful ,important and detailed knowledge .
Your vids are very excellent!
I watch all you vids & really helps with my work as an hvac tech!
Awesomeness!!!
Hey brother what type of work are you doing these days ???
Your in Toronto right?
@@zenmaster6979 Haven't been working because of my back.
Another fine video, especially, as mentioned by others, the advice to keep the tape off the first pipe thread. I once had an air stapler malfunction when a tiny piece of PTFE tape lodged in the stapler’s actuator valve.
The best way to remove tape is compressed air, so long as you don’t mind blowing the stuff all over your shop or wherever. And, along the lines of keeping the tape off the first thread, make sure you clean the female part of the fitting of the tape shards that inevitably remain there.
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Another safety note on heating/burning teflon is that it can act as a powerful oxidizer. If finely divided and mixed with metal shavings (particularly aluminum or magnesium) it can go off like flash powder.
Even if it's not that violent, having bits of it in with metal filings can create an unexpected fire hazard.
WOW. Without doubt one of the best, no nonsense, informational, and to the point, videos available. Just great. Thanks so much. Btw, great accent, I'm Canadian, eh!
I immediately knew I was viewing the right video when the very first shot is of an actual plumber's hand, beat up, and "who cares?"!
Well done, thank you..
In irrigation we use the white tape for all pipe sizes, I've never even seen the pink for sale. Also, we like to use tape to avoid contaminating the systems with paste, because there are small orifices in the valves and nozzles. Even if the tape is improperly applied and causes a clog, it is easy to remove; whereas paste will gum things up.
Great video. been doing plumbing for 6 months now and I cant wait for you to post more.
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I'm not a plumber and I hardly ever do any plumbing at home ( when something breaks) but somehow I still watch your videos because it's well made and fun to watch. Keep going.
Wow, thanks!
I'm one of those grannies who have learned bits n pieces of info to help ask the pro in order to determine if he is "well schooled" when I need professional services for maintaining hvac, etc. Little things I can do on my own. I have used Teflon tape for decades, but no one has ever told me or explained there were colors n types/grades. Thanks for the tips, especially in wrapping in tight places. NM
Thanks for sharing your expertise in teflon tapes sir. 😊
I liked the video and I learned a few things even thought I've been doing plumbing repairs for many years. Three comments:
1. I've never used anything but the cheap white tape that Home Depot and Lowes sells on water lines. I've never noticed any problems except when connecting threaded pipes to plastic sprinkler system valves. Maybe a different tape would make a difference or maybe more or less wraps. I don't know.
2. I believe the primary purpose of Teflon tape is to fill the spiral hole that exists in a male pipe to female pipe connection. If you don't use pipe dope or Teflon table the joint will leak through that spiral. I do like the fact that the Teflon tape lubricates the joint. I think it makes it a little easier to figure out when the joint is sufficiently tightened.because the rise in torque when the joint is sufficiently tightened is more obvious.
3. I always use the yellow tape on gas joints but I have noticed professional plumbers just using white tape although I have also seen them using pipe dope and the while tape on the same joint for gas joints.
"I believe the primary purpose of Teflon tape is to fill the spiral hole that exists in a male pipe to female pipe connection."
You are correct. The lubricating properties of Teflon are only a nice bonus, but not the main reason to use it. It is called a "thread sealing tape" for a reason.
Yours is by far the BEST plumbing channel I've seen on RUclips.
Can you do a video on covering random code topics from the OBC at all?
Thanks, yes I will 😁
Please!
So it's Thanksgiving night, I didn't get to eat a lot of turkey this year so I'm not as tired as I usually am after stuffing myself. I decide to watch some RUclips to wind down. A video about ptfe tape is recommended to me, why idk lol. I just lost my father a few weeks ago and he was in the maintenance field and I can remember him telling me some about the colors so I watch the video. You sir have gained a new subscriber! Thank you for the memories!
This definitely was everything I needed to know about Teflon tape. Thank you.
Thank you, don't forget to share, it really helps the channel!
Just a quick tip from out of left field; when working with thin or soft material, grip it back away from the actual joint to keep from distorting the connection.
Great video regarding the tape type & application. I generally use Mil Spec white tape except for yellow on gas connections.
Thanks for the info!
G'day, My father saw a demonstration of PTFE tape in the 1960's, every joint leaked. It took another 15 years before he used it. He puts it on so thick that you cannot see the thread form (20+ layers). He says the tape is cheap but a leak will be expensive to fix.
This video helped me yesterday in a D1 lab inside a cannabis facility. Thank you sir I really appreciate the help 🙏🏽
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Really was everything I needed to know. Appreciate the info!
Always learning something new, all I ever used is what I was given to work with, but I always backed up the tape pipe dopa recto seal, just felt better doing it, any , no leaks😁
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This was a very useful vodeo ... it never crossed my mind that there are different types of teflon for different applications .
There are, hence the colors, glad I was able to show you :)
Same here!
Thanks a lot. My first time in my life to aware different types of thread tape.
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im a commercial plumber and this channel is incredible i show it to all the trainees and apprentices!
Thank you so much Jonathan, glad to help!!!
Super useful video! I never knew about the different grades.
Glad it was helpful!
Learning a new thing every day! Great tips! Thank you.
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Great info! Thanks! I work in a hardware store and I didn't know this. Now I can pass it on to my customers.
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When a pipe "galls" it is pronounced as "fall" as in a waterfall or falling off of a cliff. Thank you for the great informative video!
Dude. Duuuuuuddddeeee. Literally never heard this until now. Out of the countless hours of watching experts and how tos and PBS never once was it mentioned.
My pleasure! ;)
Before I thought Teflon is all the same usage. Thanks for the ideas you have shared God bless
Good video. I am located in Georgia. Around here the tape we see is blue. I have seen inspector write ups because the tape on the gas lines were not "blue." Another way threads are sealed is by blocking the root of the thread path. This includes pipe does. You could show the trick to making the tape narrow for smaller pipes. Tear off a piece and hold it up and let it hang. Grab it at the top with two figure of one hand on one side then grab it with two fingers of the other hand on the other side and pull down quickly and it will split the tape.
I can't believe I thought Teflon was the sealant lol. fwi, I would just put more white on. I love these videos man. Learning so much. Keep them coming please
It seals but only partially, the threads are what actually seal the joint, the teflon just fills in the small little voids 🤘
another superb video! what a gift your content is to RUclips!
Thank you SOOOO much Eric, couldn't do it without your encouragement!!!
As with your other videos, very clear and useful information. Thank you very much, I am learnign a lot with you.
showing an accurate and deep understanding; great perceptive. 💡
Muito obrigado for all the insightful information. 🤝
Thank you very much!
Strange fact. My parts washer was put together with white regular tape and developed many leaks. I had to redo the whole thing with yellow to get it to be leak free for many years
Maaaan, I can’t believe I didn’t think of the pen trick myself......thx buddy
You are most welcome, please share if you can, it helps the channel tremendously ✌✌
I hold the tape in my left hand to wrap. I found that I can wrap it around a finger on my right hand and transfer it to a pipe that I can only reach with one hand. It took some practice.
At the time, (40 years ago) I thought I’d invented this technique, but probably not.
Saw an auto-electrician use this trick many years ago with some electrical tape (no pen) while re-wiring in a hard-to-reach spot & through a tangle of wires. Simple and very effective.
As a mechanic. I love pipe dope and tape. You have to use both for Hydraulic without o rings. Nice video!
Thanks man, I love this channel and I have learned so much. I am going to try your technique for saving a glued socket. I have an 80 gallon contact tank that mysteriously after 11 years has developed a small drip underneath. If I can save that socket it will save me from having to buy another $800 contact tank. looking forward to the pipe dope video. Cheers!
Hope it works Will, thanks man!!!
Damn I'm glad I found this video. I had absolutely no idea there was even different types for different applications
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Great video! I would have liked to see a warning about the types of threads that require PTFE tape (like NPT), and the types that should never use it (like compression fittings). I see that error way too often!
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Unique infos on Teflon tape. Using but never knew about its in/out. Thanks
No problem K A!
Awesome man,you are so articulate and knowledgeable...liked and subscribed. (Canadian/American here btw)
Thank you so very much!!!
In the oil patch we use Jet Lube brand. It’s on an orange roll, made in Edmonton. It’s pretty thick stuff.
I think that kind prevents corrosive or caustic damage, right? It’s got something special in it to keep the threads from being damaged by the stuff in the pipes. Just can’t remember what…
@@edlingja1 No, nothing special. If something in a pipe is corrosive enough to bother the threads, the whole pipe would be ruined.
Due to the hydrophobic nature of Teflon, when used in water pipes, it does end up having an important sealing effect.
Not only that, but the statement that thread tape is not there for sealing is completely, straight up incorrect. Due to the spiral leakage path, a joint which seals on the threads, such as NPT, will NEVER seal if tape or sealant are not used. Without tape or sealant, there is always a leakage path, regardless of how tightly you compress the fitting and at higher pressures, a significant leak will occur.
On the other hand, straight thread joints such as BSP seal on a face against a gasket and tape is not required as the threads only provide a mechanical connection and the force required to seal against the gasket.
this is the best presentation i have seen..
Thank you so much!!!
Excellent video extremely interesting thanks for your work in the making.
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3,3,3,3 rules.
When cutting the threads on a blank pipe the depth of the thread dies should be adjusted (this could be tested using a scrap piece of the same type/diameter) so that after threading (releasing the dies after the end of pipe comes past the plane of the end of the dies) the end of the pipe a fitting should have 3 rounds of teflon, be able to turn by hand 3 revolutions, be tightened 3 rounds, and have 3 threads showing when finished. This would be the ideal procedure/method. Deviations from this ideal will work, but the better method should be aimed for.
In our high pressure oil pipeline in the larger sizes we have had problems with joints seeping. Our line is operational to 1100 psi at places. We often apply pipe dope, 3 minimum wraps of tape, then sometimes another thin pipe dope. In the largest sizes you need to apply dope to the inside of the threads too. That way the joint doesn’t get starved of dope while tightening
Loctite 577 dude.
Parker threadmate paste
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Very good explanation. Here in México I have never seen the green teflon one.. keep going in your good videos
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Thank you. One stop shopping for information. Looking forward to the pipe dope segment.
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You can also "scratch" the treads to make "hooks" to fasten the tape better on slick treads. In Sweden most couplings have this scratches made in produktion
German here. We mostly use hemp and its pretty much mandatory to use a sawblade to scratch up the treads before applying your hemp. Atleast its what we were taught in trade school and by coworkers.
We have an orange tape here in Canada too. It's basically heavy duty yellow. It can be used for fuel service, acid/alkaline fluids, H2, nitrogen and other non medical gasses. I like to tape and dope all my fittings for peace of mind.
Lol, I was wondering "Where's the orange ?"
That stuff's the $hit for raggy-ass threads.
The only (peace of mind) is a leak check per allowable soapy solution!
@@SuperSpecialty Yeah, that's a great way to test for slow leaks.
But it's important to remember that pipe fittings and connections are the most likely components (weak point) in a fluid delivery system to develop leaks. Depending on the application, a little extra thread sealant or tape can save from headaches down the road.
@@jordanrelkey Ty 4 your input, yes I know... I’m a retired nuclear submarine mechanic (marine machinery mechanic-shop 38-PHNSY) with 35 yrs of DoD service.
@@SuperSpecialty Right on, you must have experienced hands on with some incredible cool kit in that time.
Very good explanation, very helpful.
Really nice video, as someone working in the beer industry, it was really helpful for me.
Awesome!!!
Metal on metal without T-tape can cause "galling" like when spark plugs are installed without anti-seize compound, the bare metal can weld itself together by oxidizing (rusting) and if you ever have to remove a galled pipe you know what I'm talking about, get out the cutoff saw! T-tape or the messier older brother Pipe Dope make installation and if necessary removal at a later date much easier!
As stated at the end of the vid ;)
Unrelated to thread but same thing here, like your example with spark plug, metal mix is very bad when their corrosion resistance is very far apart.
Never mix Alluminium Seat post + an iron bike frame and vise-versa.
I once managed to free one... that took an half a Ton table plus one ~200lbs guy sitting on it plus a big vise and 2 guy twisting and pulling on that bike frame to free it.
Even with that table plus the guy on it, we were still pulling the table before even moving that seat post out of that bike frame XD
I always thought the tape acted as a sealant. Never realized it was actually a lubricant! Somehow I've been lucky --- I've always wound the tape clockwise --- never considered what would happen if it were applied counter-clockwise! Makes sense!
"I always thought the tape acted as a sealant."
And that is still its primary function. Making it easier to put the threads together is only a nice bonus.
i despise tape, tape is only for sprinkler heads, gas and very temporary connections, same with teflon thread or dental floss as i call it. rasp and hemp everything. it is the best and nothing beats it
Man! Another great video! You are my plumbing guru!
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Very cool I had no idea how Teflon worked to prevent leaks I always thought it just fills in the gaps in the metal to prevent leaks.
I recently switched from the white stuff to the pink Oatey tape. I could not believe how much better it as. I tried to see how many threads are required for 1/2 inch ips to be water tight. So I pressurized a closed loop I had soldered up and gradually started to un-thread the fitting. I figured it would gradually start to leak like when you un-screw a garden hose. Nope ... when it got to the last thread, it sounded like a gun shot and boy did I get wet. The compressed tape must have been expanding to fill the gap ... well worth the extra 5 bucks ... I can not imagine it ever leaking under normal use.
Nice test! That's good to know, it's both a sealant and lubricant...I'm switching to pink from now on, thanks!
Yea pink is great and makes it easy to to get the pipe in, brown is decent too but not as easy to get the pipe in and can be a bit messy.
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I've switched to pipe dope many years ago. It is messy but easier to use. I'm not a pro but haven't had any troubles yet.
I use (yellow) pipe dope when putting gas lines back on pool heaters. Just gob the snot out of it, can’t go wrong with a little marshmallow around the block. Definitely don’t want to rely on a bit of yellow tape for something that serious.
Stopped using white dope for plumbing though, just a bunch of white Teflon & some permatex for pvc threaded joints.
Another great vid!!!! Thanks a lot for sharing, super helpful!!!! 👍👍👍👍
You are most welcome Jose!!! 🤗
We plumb liquid propane threaded connections. We've always uses Teflon tape and pipe dope. Our design criteria is 350 PSIG working with a 5 to 1 safety factor. Because some people don't adhere to what you've stated regarding leaving the first thread bare, we find strings of Teflon tape lodged in downstream valves and controls.
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Great video. But you said that the tape seals the joint to *some* extent. I believe that the tape seals the joint to a great degree by filling the interstitial spaces between the metal male and metal female NPT threads. Rock on, good sir!!!!!
Nope. It's a lubricant. Pipe threads seal by deformation. That's why they are tapered. Try sealing a non tapered connection...
@@ShainAndrews it also seals the threads, prior to ptfe tape, we would use hemp and stag to do pipe joints.
@@ShainAndrews "Nope. It's a lubricant. Pipe threads seal by deformation."
No, it is a sealant - hence why all manufacturers also call it "thread sealing tape" and not lubricant, that it is slippery is only a nice bonus.
@@ABaumstumpf It is a lubricant. End of story.
In Holland we have the color Red. We use it for everything!!!!!
I've seen red instead of blue sometimes around here too. It always seemed to be the same as it though
Blue is usually thinner and not suitable for gas applications. Red is safe for gas and water.
There is certainly a lot of "red tape" in EU if you know what I mean.
Do you even wipe your arse with it?
@@KX36
Red tape for who, Non EU members ?
Wat do you expect Princess (pUKe) ?
Great job and very accurate. Thanks for all the info.
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I am about to embark on a DIY project knowing nothing about plumbing. Your video gave me the knowledge necessary for me to wing it. 😁
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For those on the metric system, a US "mil" refers to 0.001 inches (25.4 microns).
Yep. It is short for a milli-inch. It is also called by some a "thou", short for a thousandth of an inch.
@@Sembazuru Called by most, no one says mil, everyone around a machine or industry I've ever met calls them a thou.
Hey everyone, when you burn the tape you get "Organic Vapors" not "Fumes", fumes come from burning metal. Good to know when choosing the correct respirator cartridge. Black is Organic Vapors like smoke and paint smell, Magenta is welding for example. Use a combo filter for (aerosols) like spray paint because its both chemicals and drops of paint floating in the air.
Thanks for the correction 💯
Polymer _fume_ fever, also known as Teflon flu, is an inhalation fever caused by the _fumes_ released when Teflon reaches 300-450 degrees.
Organic vapors typically refer to liquids that are petroleum based (from organic carbon) evaporate quickly (creating vapors.) Products like turpentine, gasoline, paint thinner, urethanes and solvent based epoxy all will give off organic vapors in varying amounts.
Thanks for a 'great' overview. Always see the White tape at the HW stores, didn't realize I could use other colors for potable water.
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Learn something new every day. Great info.
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You can thank the Manhattan project’s uranium enrichment for all of the fluorine chemistry that lead to the development of PTFE.
i don't like ptfe enough to thank anyone or anything for it.
Finally something I did not know!!
Awesome video. Ive learned something new again.
Never knew there was different types. Great video.!
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Technically, teflon tape does serve as the sealing mechanism in an NPT system where Teflon tape is used. Due to the imprecise nature of the threads which you rightly touch on, they can't be relied upon for a metal to metal seal as is relied upon in a flare type sealing system. That having been said, applying too much tape makes no more sense than using an oversized o-ring in a joint which relies on an o-ring to seal. And overtightening is also a concern, in much the same way that overtightening an o'ring can result in over-compression of an o'ring to the point where it loses it's elasticity, leading to premature failure under extreme conditions especially of temperature.
The spiral leak path is part of the compromise of an NPT fitting, even very precisely machined NPT threads meet at a circular initial contact point, which contains a gap from the crest of the thread unless the fitting is over-tightened.
NPTF "dry seal" fittings have an undersized cut in the thread, and are meant to crush into place and form a true seal, mating two parts to each other, while NPT and teflon tape fittings can be swapped back and forth with other pieces if needed.
I often roll my eyes at metal to metal sealing fittings (flange, CGP, swage, etc) where someone has tried using PTFE tape to seal leaks... Though, after watching this video, I wonder now if I was mistaken for the original intent and the PTFE tape was being used as thread lubricant for anti-seize and/or anti-gall...
I agree. In fact I work a lot with Swaglok and Parker connections and in my 11 years working on the company people always told me to do only 2 layers in the same way the video shows and usually work from 1 psi to 10k with no leak at all. The only problems we have found so far are over taped threads (way too many Teflon layers) and overtightening.
As a safety precaution, people should be careful with pipe threads, as they can cut your fingers. Stainless pipe threads are very sharp.
That was pretty cool thank you for the info and the difference between them all.. thank you it was very helpful.. Have a great day..
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I just learned SO MUCH thanks! Basically every point you talked about was new information for me hahaha I thought teflon tape just sealed threads. Fascinating!
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"I thought teflon tape just sealed threads."
That is its primary purpose - hence why it is called "thread SEALING tape" and not lubricating-tape.
@@ABaumstumpf in the video the guy explained how the main function is to lubricate and allow proper seating of threads (namely tapered threads). My original understanding was that it sealed like using caulking or orings or gaskets but from his explanation the proper sealing is achieved via proper seating. So it does serve to create a better seal but the mechanism by which it did that is what I had a misunderstanding about.
@@augurelite "the guy explained how "
Claims is the right word to use here. it does lubricate and that also helps sealing, but the main use is sealing - as the categorisation as "thread sealing tape" by the manufacturers them self should show clearly enough.
@@ABaumstumpf I'm not sure where you're getting your information from but I just checked swagelok (one of the biggest industrial fitting and fluid component suppliers) and they seem to say the same thing the guy said in the video. Just curious, when you say "the manufacturer" are you referring to like the label on PTFE tape from home Depot or some other consumer-level supplier or an actual engineering organization who manufactures sealing equipment for safety-critical applications? I'm not trying to be rude or anything but it seems like what the video creator is saying is correct. Here's the swagelok article northerncal-swagelok-com.cdn.ampproject.org/v/s/northerncal.swagelok.com/blog/bid/88017/skill-applying-ptfe-tape-to-tapered-pipe-threads?amp_js_v=a6&_gsa=1&hs_amp=true&usqp=mq331AQHKAFQArABIA%3D%3D#aoh=16169655110292&referrer=https%3A%2F%2Fwww.google.com&_tf=From%20%251%24s&share=https%3A%2F%2Fnortherncal.swagelok.com%2Fblog%2Fbid%2F88017%2Fskill-applying-ptfe-tape-to-tapered-pipe-threads
I'm a hydraulic repair man. I use npt to test cylinders all the time. The pen trick blew my mind. I will definitely be using it in the future. We use mill spec white stuff. It holds to 10,000 psi. (On ⅜ npt) I've used it on 4 inch npt. Not long term, just a 15 min test. Keep in mind hydraulic fittings are (usually) smoother than black pipe threads.
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45 years ago I was developing a chromatographic process to enrich fructose syrups. The vessels had dozens of 1/2 316L sch 40 stainless threaded connections. Due to galling it was almost impossible to get all of the joints leak free. I don't think specialized stainless spec thread tape was available at that time. It was so troublesome that we ended up tig welding the fittings in installing a number of unions as well as replacing some of the schedule 40 pipe with swaged tubing.
What, no proper thread lubricant/proper threaded fitting for what ever system pressure?
Was the galling resulting from the caustic nature of the syrup?
@@Lengsel7 galling is a combination of friction & adhesion i.e. mechanical not a chemical
Use SS304 bolts and SS316 Nuts for easier removal of fasteners.
I been using that cheap tape for awhile. It always leaks 😂
I got some of the yellow tape when I thought I had a small gas leak. I’ll just use that from now on.
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Im obsessed with PTFE thread tape. Its so satisfying to wrap on threads and screw shit together. It has that slick, smooth, dry but oily feel. And it's $1 for 40 feet of it. I want to wrap PTFE tape on everything
Stainless steel pipe and most stainless steel is very soft!!!
Great video as always my friend!!!
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I found it interesting that the lower end of temperature range for teflon tape is -450 F or just 10 degrees from absolute zero. That's pretty damn cold.
Caution , when applying Teflon tape onto fittings that screw into aluminum housings , do not over tighten . The tape puts less resistance on the fitting and mechanics may have a tendency to over torque , cracking an aluminum housing .
Always very helpful 😍😍
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Got2Learn lol ?
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When applying teflon tape to 316 machined stainless npt fittings, you dont want to skip that first thread as you would typically with steel or black iron fittings. The stainless fittings will gal or coldweld together upon torquing and will be ruined if disassembly is ever necessary. -16+ year hydraulic technician. Great video!
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