Great video thanks. Saved me hours of heartache. Made replacing old 5ft radiator with new 1400mm very straightforward without needing new pipework. Compliments to the cameraman too.
Good vid,just a tip though, you dont need to put ptfe tape on the threads of compression fittings ,it serves no purpose at all,put the tape on the olive not the thread.
I have a 1330 single but replacing it with 1200 dual. I can get these for length but the off set is nearly 25mm out. can flexible ones be bought. the floor is concrete & the pipes are quite old. Any advice accepted
Unusual to have no sound but it has proved to be one of the most helpful videos on how to do this. So easy to follow step by step. Has given me the confidence to do them myself. Much appreciated.
Telescopic radiator valves are a leak waiting to happen. One can buy a fixed length version which can easily be cut to the correct length with a pipe cutter. PTFE around the thread on the valve is also a NO. It needs to go around the olive as this makes the water seal. The nut and thread just mechanically holds the joint together
Agree - the fixed type has a longer thread into the rad, and costs less, whereas the telescopic type relies on a rubber gasket. Fit once, never replace!
I have a radiator with telescopic tails at both ends. Any ideas on what to do or avoid when moving the rad? The rad has cold sports so need a good flush but I'm worried the tails will be naff
I didn't know these were actually a thing until I noticed one of my rads leaking. Initially I thought it was one of the compression fittings on the valve, but when I took the rad off the wall I noticed one of the tails slides in & out. That's where it's leaking from. I have no idea how old that telescopic tail is though as I bought the house 7 years ago. Time for a new telescopic tail 👍
This video was very useful as I had to replace an imperial radiator for a new metric. I did not use the telescopic tail however, instead I used the rigid TRV extension tail as I read some reviews that said the telescopic tail was prone to leaking. Nonetheless, appreciate the time taken to put this video up.
Thanks for the video, the only one I could find for the extension valve; turns out it's the same valve. I was worried about leakage due to movement... Yes it does not leak even though it moves
Good job, great video. I much prefer brass olives to copper ones, never had to apply ptfe tape on a brass olive. But if using the copper olives, I tighten the fitting down first (so the olive bites into the pipe and secures it) then unscrew the nut and apply the ptfe tape. Im no plumber either, but you could probably make an extension by fitting one side of a 15mm straight compression fitting into the Rad and then using the required length of 15mm pipe between the straight connector and the valve.
Not correctly installed. Ptfe tape around the lockshield valve thread is not the way to seal that connection,. The olive makes the pipe seal, and a touch of jointing compound or a few turns of Ptfe on the tail spigot us the correct way to a perfect joint. Also, I can see the telescopic tail has an O ring seal so no Ptfe required there, just a slight smear of silicone grease.
Please bear with me, I am a complete plumbing beginner... What you call the "olive", is it the black rubber seal? So on one side, the seal is ensured by the rubber. What about the other side? Is the brass thing enough as well? Is PTFE required purely for hard metal to hard metal connections? Do we need PTFE tape anywhere in this case?
@@ericmamet9893 The olive is the copper ring that fits around the copper pipe, looks like a wedding ring, and is used in all compression type fittings (those with a nut and thread). If you are screwing a radiator tail into a radiator, and the tail includes an O ring, then a little silicone grease is required to ensure a good fit at the radiator . The other end of the tail usually includes an olive as it is a compression type fitting.
For info, the olive is heat treated at the factory to soften it, so when the compression fitting is tightened it is squeezed between the pipe and hard machined metal face of the fitting. To ensure a completely weep free joint, smear jointing compound at the olive /pipe joint facing the machined metal face, or a few turns of PTFE can be used.
Hi James. Really useful video. Is it possible you could tell me which extension valve it is / where from etc. Have looked on screwfix - and there are a few variations. Thanks.
Good video but, suggest it would be better to use a spanner rather than grips or at least protect the nuts with a cloth. This way you won't remove the chrome.
Am I right in thinking the threaded section you screwed into the rad at the start of the video didn't really need PTFE tape since it had a rubber O-ring? Or was it a tapered thread and PTFE was definitely required? Thanks.
Grips on brass what a no no, use an open jaw spanner look at the teeth marks that have been left on the nice chrome fittings. You go to do them up or undo later when they are hand tight and you will have nice brass splinters stuck in your fingers
Omg...u dont need to wrap ptfe tape around the end or bleed valve as they have rubber o rings.....and dont wrap ptfe tape around threads of the lock shield, instead wrap ptfe tape around the olive then tighten lock shield.
@@bobtahoma Have a watch of this one too: ua-cam.com/video/u77SJgIS4mY/v-deo.html I've been plumbing for 20 years and I know a lot of professionals. The olive is the seal. The ptfe assists the seal. You only put ptfe on threads when a male screw thread goes into a female thread (no olive present)
@@bobtahoma You are right, a properly tightened olive (about one quarter turn once it makes contact) should never need ptfe. You are best putting ptfe on when reusing an olive (like when there is no access to get it off) or of you have a leak from an existing olive then ptfe will usually fix it. As for copper or brass, both work but I too tend to use copper.
@@jbaillie01 Nope! The comment was aimed at BH whom had a pop at your spelling. The fact they didn’t pick up on the error suggested he or she didn’t know it was spelt wrong. A tad ironic me thinks.
OMG mate , get a plumber , completely the wrong use of PTFE tape, use of tape in the wrong places, etc, did not clean or use sealing compound on the valve compression ring, tape on the olive too, hilarious. there are many much better videos to follow for a DIY person not wanting a plumber.
Great video thanks. Saved me hours of heartache. Made replacing old 5ft radiator with new 1400mm very straightforward without needing new pipework. Compliments to the cameraman too.
Great video, James. Thanks for taking the time to post.
Thanks. This has saved me hours of lifting floors & adjusting pipework
Good vid,just a tip though, you dont need to put ptfe tape on the threads of compression fittings ,it serves no purpose at all,put the tape on the olive not the thread.
See you say that but it has stopped a few leaks for me in the past
@@garnhamr stand by the above, does nothing the seal is the olive not the thread. but if it works for you then fill ur boots my friend.
@@garnhamrit hasn’t , the olive is the seal.
Your six year old is a wizard at video recording, every thing was clear and no wobbly bits.
😂😂😂
Thanks this helped alolt. I was so confused when I got hold of the tail valves
I have a 1330 single but replacing it with 1200 dual. I can get these for length but the off set is nearly 25mm out. can flexible ones be bought. the floor is concrete & the pipes are quite old. Any advice accepted
Unusual to have no sound but it has proved to be one of the most helpful videos on how to do this. So easy to follow step by step. Has given me the confidence to do them myself. Much appreciated.
Sorry to say it won’t be your lack of ability these fittings are rubbish better off using m&f chrome sockets their far sturdier.
@@lennykelly9952 thanks. Good to know for next time. Doing fine 4 years later.
Telescopic radiator valves are a leak waiting to happen. One can buy a fixed length version which can easily be cut to the correct length with a pipe cutter. PTFE around the thread on the valve is also a NO. It needs to go around the olive as this makes the water seal. The nut and thread just mechanically holds the joint together
Been fitted 3 years still havnt leaked 😁
There AREN'T olives on rad tail joints!
Agree - the fixed type has a longer thread into the rad, and costs less, whereas the telescopic type relies on a rubber gasket. Fit once, never replace!
A really great video, thank you very much
I have a radiator with telescopic tails at both ends. Any ideas on what to do or avoid when moving the rad? The rad has cold sports so need a good flush but I'm worried the tails will be naff
I didn't know these were actually a thing until I noticed one of my rads leaking. Initially I thought it was one of the compression fittings on the valve, but when I took the rad off the wall I noticed one of the tails slides in & out. That's where it's leaking from. I have no idea how old that telescopic tail is though as I bought the house 7 years ago. Time for a new telescopic tail 👍
This video was very useful as I had to replace an imperial radiator for a new metric. I did not use the telescopic tail however, instead I used the rigid TRV extension tail as I read some reviews that said the telescopic tail was prone to leaking. Nonetheless, appreciate the time taken to put this video up.
They do leak, both of mine are leaking thats why Im here. I'll put a rigid one on them thanks for the heads up
Does the rigid one extend to size like this one too?
Its not posible on the radiator valve I have to fit a compression fitting??
Thanks for the video, the only one I could find for the extension valve; turns out it's the same valve. I was worried about leakage due to movement... Yes it does not leak even though it moves
See you’d think it would leak if you can extend the size , what stops is leaking ?
What seals it into the Rad, are these long lasting
Good job, great video.
I much prefer brass olives to copper ones, never had to apply ptfe tape on a brass olive.
But if using the copper olives, I tighten the fitting down first (so the olive bites into the pipe and secures it) then unscrew the nut and apply the ptfe tape.
Im no plumber either, but you could probably make an extension by fitting one side of a 15mm straight compression fitting into the Rad and then using the required length of 15mm pipe between the straight connector and the valve.
Jointing compound is much better for this than PTFE tape.
Not correctly installed. Ptfe tape around the lockshield valve thread is not the way to seal that connection,. The olive makes the pipe seal, and a touch of jointing compound or a few turns of Ptfe on the tail spigot us the correct way to a perfect joint. Also, I can see the telescopic tail has an O ring seal so no Ptfe required there, just a slight smear of silicone grease.
Please bear with me, I am a complete plumbing beginner...
What you call the "olive", is it the black rubber seal?
So on one side, the seal is ensured by the rubber. What about the other side? Is the brass thing enough as well?
Is PTFE required purely for hard metal to hard metal connections?
Do we need PTFE tape anywhere in this case?
@@ericmamet9893 The olive is the copper ring that fits around the copper pipe, looks like a wedding ring, and is used in all compression type fittings (those with a nut and thread). If you are screwing a radiator tail into a radiator, and the tail includes an O ring, then a little silicone grease is required to ensure a good fit at the radiator . The other end of the tail usually includes an olive as it is a compression type fitting.
@@westwonic Thanks
For info, the olive is heat treated at the factory to soften it, so when the compression fitting is tightened it is squeezed between the pipe and hard machined metal face of the fitting. To ensure a completely weep free joint, smear jointing compound at the olive /pipe joint facing the machined metal face, or a few turns of PTFE can be used.
Hi James. Really useful video. Is it possible you could tell me which extension valve it is / where from etc. Have looked on screwfix - and there are a few variations. Thanks.
Please pause this video at 16 seconds. Glad it's useful to you.
James Curtis Missed that! Brilliant thank you. Did u have to purchase the threaded connected for the other end separately? Or are all parts included?
*threaded connection..
any idea how to do this in Narnia?
Why did you put ptfe tape round the threads of the valve ?? It’s the olive that forms the seal NOT the threaded part
Good looking useful product might help with my tight-fitting upright! Bit quiet; maybe some pipe music would suit???
Good video but, suggest it would be better to use a spanner rather than grips or at least protect the nuts with a cloth. This way you won't remove the chrome.
The valve end is separate. Available from your favourite diy store.
Good video can't believe people no sound just watch simple what do you want him to come and fit it for you free info step by step parts on Ebay
Why would you ptfe, there a rubber washer?
Am I right in thinking the threaded section you screwed into the rad at the start of the video didn't really need PTFE tape since it had a rubber O-ring? Or was it a tapered thread and PTFE was definitely required? Thanks.
Is there no.sound on this video ??
It was taken by my 6 year old, you don't want to hear me asking her to hold the camera steady over and over :-)
Grips on brass what a no no, use an open jaw spanner look at the teeth marks that have been left on the nice chrome fittings. You go to do them up or undo later when they are hand tight and you will have nice brass splinters stuck in your fingers
speak up man!
How unprofessional using gland nut pliers instead of an adjustable spanner on chrome fittings .
Leave some ptfe for the rest of us mate
Omg...u dont need to wrap ptfe tape around the end or bleed valve as they have rubber o rings.....and dont wrap ptfe tape around threads of the lock shield, instead wrap ptfe tape around the olive then tighten lock shield.
The ptfe tape goes on the olive. You always put the ptfe on the things that seals. In this case its the olive.
@@bobtahoma You do. Watch this as an example: ua-cam.com/video/yvTEb2-Iivo/v-deo.html
@@bobtahoma Have a watch of this one too: ua-cam.com/video/u77SJgIS4mY/v-deo.html I've been plumbing for 20 years and I know a lot of professionals. The olive is the seal. The ptfe assists the seal. You only put ptfe on threads when a male screw thread goes into a female thread (no olive present)
@@bobtahoma You are right, a properly tightened olive (about one quarter turn once it makes contact) should never need ptfe. You are best putting ptfe on when reusing an olive (like when there is no access to get it off) or of you have a leak from an existing olive then ptfe will usually fix it. As for copper or brass, both work but I too tend to use copper.
Good video, but the PTFE (White tape) goes over the olive which will stop any drips.
Alan Blundell it was put over the olive
You don't put ptfe tape over Olives..you use jointing compound.
PTFE tape, also known as thread seal tape - the clue is in the name as to where it goes, drip.
the compression of the olive should provide a leak proof seal, without any PTFE tape
@@wicky525 I've always had trouble with brass olives, so as a full proof option I use PTFE. Copper olives are better.
PTFE on the threads is.doing nothing...
I just brought a larger rad and nocked some plastet out
Bought!
B H ....knocked!
@@steves1460 You on the grammar police too eh. What's B H? you understood my comment though?
@@jbaillie01 Nope! The comment was aimed at BH whom had a pop at your spelling. The fact they didn’t pick up on the error suggested he or she didn’t know it was spelt wrong. A tad ironic me thinks.
@@steves1460 😄
should you use a rag between the pliers am not a pro just like you just saying as this is how we learn no offense
Or use a correct spanner
would really help if had sound with video but great video
ita a graet source of information. surely only Plumbers can do this kind of work. Not a amature
Imagine your company being so shit that you can't even manufacture a radiator tail without using two different finishes.
OMG mate , get a plumber , completely the wrong use of PTFE tape, use of tape in the wrong places, etc, did not clean or use sealing compound on the valve compression ring, tape on the olive too, hilarious. there are many much better videos to follow for a DIY person not wanting a plumber.