How compression fittings work 

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Yes not only not only and not only

+honestmcgyver Thanks for the comment ;-)

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Amen

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They are normally BSP Not sure if metric ones exist, in the UK at least.

In some countries, the olives are known as ferrules. Most people that I know would know what a Jubilee clip is, pretty much the same for a Hoover, but some people probably won't know what either is 😂 Thanks for the comment 👍

Great to hear!

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Jointing compound is not recommended by the compression fitting manufacturers 😉

@@ultimatehandyman don't be put off by that mate.... Been using it for 40 years.

+He Ka You are welcome ;-)Thank you for the comments

+caskwith I know a few people that use jointing compound, plumbers mait etc. on them. The compression fitting manufacturers say you don't need anything but some products do say for use on compression fittings! As long as the fittings don't leak I guess it does not matter ;-) Thanks for the comment

Brass is a self-lubricating material and therefore doesn't require any PTFE tape or similar as an anti-sieze. I've seen more leaking fittings due to using PTFE tape on compression fittings than not. Also, on a clean and correctly prepared fitting/tube normally finger tight plus a half turn is more than adequate to hold 10 bar. At work I regularly use 690 bar on Inconel/Stainless fittings and its amazing just how much pressure a finger tight fitting can hold!

+andy. you are full of it. 10000 psi with a FINGER TIGHT fitting. You're nuts.

Max R Re-read my comment again, but slowly this time. I never said a finger tight fitting would hold 10,000 psi but said that's it's amazing just how much pressure a finger tight fitting WILL hold. A couple of thousand psi before a control line starts to leak isn't uncommon - most control lines for subsea equipment use around a bout this pressure. Parker A-Lok 3/8" Inconel and Stainless is what I'm referring to. Calling me full of it just because you don't agree shows ignorance or a lack of understanding.

+Andy R . i stand corrected. p.s. ignorance and lack of understanding are the SAME thing.

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That's not a good reason to not provide them. Pros ignore them because they know what 20 lbs of torque feels like, for example, after doing it with a torque wrench hundreds of times when learning. When I replaced the calipers on my car, I sure as hell used the manufacturer's torque specifications. In this case, it would just be good to know what they are, as most people can tell the difference between something that's supposed to be 15 lbs of torque as opposed to 90 lbs of torque.

+Mark Davies Thanks Mark, I prefer the copper ones ;-)Thanks for the comment

+ForestCat I'll be doing more plumbing videos soon ;-)Thanks for the comment

haha, know you're joking, but I guess only half joking >< They key is the length of the spanner. "As much as you can" will be a lot less for a short spanner than a long one. Probably worth doing a few test fits, then taking them apart, so you can get a feel for what is too long.

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I'd expect it to leak immediately. Thanks for the comment 👍

@@ultimatehandyman Thanks for the prompt response. Cheers.

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No, not unless it is leaking. Thanks for the comment 👍

😂 How difficult would it be for the manufacturers to do a bit of testing and then say "we recommend that the nut is torqued up to X". I'll just stick to tightening it, until is squeaks 😂

I'm sure it will be fine 👍

@@ultimatehandyman Thanks for the vote of confidence. Just to be sure, I'm going to have a plumber verify my work. I'm gun shy, since I had some water damage (mold) in my kitchen that cost me a lot back in August. A drain line cracked from stress over the years and did some significant damage by leaking over a long period of time. It took me 6 months to get it all fixed. There are labor shortages in the trades in the U.S. where I live. If that valve popped off while I'm asleep or when I'm away from home, it would flood my entire home. Having a pro look at this valve install would put my mind at ease just to be absolutely sure. Thanks again for your vote of confidence. 👍👍👍

@@ultimatehandyman Just an update on my valve install results. My pro plumber inspected my installation today, and he agrees with you. He said that I installed it just the way he would have. It's good! 👍👍👍 Thanks again for your comment and very helpful video, sir.

It's difficult to say, some people say 1/4 of a turn once finger tight, but I normally do a bit more than that. I have never had one leak - yet ;-) As long as you use copper olives you won't go far wrong with a 1/4 to 1/2 turn. Thanks for the comment

@@ultimatehandyman yeah using copper olives, ok think I go with a good half a turn. Thanks for speedy response, and excellent videos very helpful, kind regards 👍👍

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Not sure what they use on brake lines, I've never worked on one. No, all of my adjustable's are Bahco 👍

@@ultimatehandyman Bahco, good brand, but I can never find them in stock lol. Its why I got a Knipex.

@@RipRoaringGarage Knipex make some excellent tools ;-)

+jeales895 Absolutely, It would be useful for many people! Thanks for the comment ;-)

I always try to avoid any joint being buried in a wall, just in case the joint ever leaks. Plastic pipes are also preferred, as they are not attacked by the plaster.

That's strange. What type of valve is it?

You can use compression fittings on LPG, they normally have a copper olive. You might want to check though, to make sure you are allowed to do it yourself! I’m not saying that you can or can’t- I know nothing about catering trailer regulations etc.

Yes, you do not need to solder a compression fitting. It seals when you tighten the compression nuts Thanks for the comment 👍

Thank you!

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@RG5355 Yes, that's what I do as well. Vaseline or small bit of pipe thread dressing, prevents that chattering noise and the nut can tighten against the olive/ferrule smoothly.

I never use PTFE on compression fittings, but some people use a jointing compound. The best and most reliable is a soldered fitting, I prefer solder ring fittings, but sometimes only compression is available, such as for the connections to the shower. ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-7zlDHA3KhLA.html I hope this helps ;-)

+TheChipmunk2008 Thanks for the comment ;-)

Nope, you do not need PTFE tape or jointing compound on compression fittings, however if the fitting leaks you can wrap PTFE around the olive. Thanks for the comment 👍

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AN fittings use flared tubing. Compression fittings fit on the tube without flaring as the olive (called ferrule in some countries) is compressed onto the tube when the compression nut is tightened.

Yes, of course. Just make certain that you use a pipe insert on the PEX pipe 👍

@@ultimatehandyman Thank you.

I will do ;-) Thanks for the comment

Yes, of course. But push fit might be a lot easier - ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-Z83vlwUyZIw.html&t Push fit fittings have helped me tremendously, especially in difficult situations like this- ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-eqECFK42PKQ.html Thanks for the comment 👍

I just used an hack saw ;-)

No, it does not matter which way it is installed. Thanks for the comment 👍

Brass olives will be fine, but you need to apply more torque to get them to seal properly, as brass is not as ductile as copper Thanks for the comment 👍

@@ultimatehandyman Dear UH, thank you for the kindness of a reply. God[Bible] Bless.

You can use a junior hacksaw, but you have to be careful not to nick the pipe. Most of the time you can saw 90% through the olive and then snap it using pliers 👍 You can buy dedicated olive cutters, but they are expensive, unless you will use it a lot.

+KINDLE Thanks Kindle, I did put the key Bar pressures on the video at 10 bar intervals (I think).Thanks for the comment

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+arfan jhangir The brass olives are yellow in colour, the copper ones are copper colour ( a reddish colour )Thanks for the comment

No, it is not needed with compression fittings, as the olive does the sealing 👍

No, you need to remove the solder, as the olive is a really tight fit. Best way to remove the solder is to heat it using a blowtorch, then wipe the solder away using wire wool/damp cloth (being careful not to burn yourself). If you don't have a blowtorch, you could use some abrasive paper, such as Emery cloth to remove the solder.

It could be the length of the spanners that you are using. You can buy a specific spanner for compression fittings and its only about 7 inches long- so you do not get enough leverage with it. I normally try and use something long like a 12" adjustable to get enough leverage to tighten it enough. I often use a large pair of water pump pliers to hold the fitting whilst I tighten the nut. ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE--9c5LWFI_M4.html

Shaun Smith try to tighten the compression joint as tight as possible and see whether it still has a leak

+Nik Trp I have never seen these couplings on the sites that I work on, we tend to use spider couplings or tyre couplings. I'll look out for them in future though ;-)Thanks for the comment

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A lot of professionals also use jointing compound, which the compression fitting manufacturers do not recommend. Thanks for the comment 👍

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You cannot beat soldering ;-) Thanks for the comment

I have never seen Nylon olives in the UK, they are normally either copper or brass. ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-1TFisMcDrH4.html

+Bottles You are welcome ;-)My local plumbers merchants sells copper olives so I normally pick up a handful when I am there!Thanks for the comment

Screwfix do sell copper olives, I brought a pack few days ago just incase I over tighten my compression fittings and need to replace.

+Sean Walsh Yes Sean, no problem at all. If they are copper you can just use them straight away, but if plastic pipe you need a pipe insert. Thanks for the comment

It depends. Really the manufacturers should specify a torque vale, but none of them seem to do so! Thanks for the comment

+Mr Cool No idea, sorry. These are products that I have never used!

fave.co/3wi7DWl

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No, these can only be used on rigid pipe, not flexible pipe! Thanks for the comment 👍

@@ultimatehandyman thx so much your channel is great n nicely explained. Well dun m8

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Not sure, I think they flare out brake pipes using a special brake pipe flaring tool, then use special fittings. Thanks for the comment 👍

+Eddie Prout Prout Thanks ;-)I'd need more than spanners to open my girlfriends purse!Thanks for the comment

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Best to keep the fitting still and turn the nut if possible.

thanks handyman.,

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+hucks33 Different manufacturers supply different olives with the fittings. Personally I prefer copper olives as they are easier to compress, because copper is more ductile. I'd always use copper, unless I was stuck and only had a brass olive.

+hucks33 Fittings are supplied with brass olives simply because it's cheaper. I buy bags of copper olives from Screwfix and substitute the brass ones with them every time

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ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-JCEkwNydIWY.html

You can get compression fittings to reduce from a 22mm pipe to a 15mm pipe including elbows and T's etc.

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Have you tried spraying the nut with some spray penetrant?

thank you for the advice

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@@ultimatehandyman thank you 😊

Thank you too! 👍