Re-Plumbing Valves

[EdTurtle]

Hi all, I have a radiator with some less than ideal tails - as shown in the picture they are a bit green. I will be redoing these in chrome at some point, but i just need some help with the job. At the moment the radiator valves have extenders on them, presumably because the new rad was a bit narrower than the old one it replaced. then they look to have just bent them to fit, hence the slight weeping. Can i remove these extenders without buying anything else to fit in there, ie will the existing parts fit (unsure on the names I'm afraid)? If i do need something else, can you please either tell me what they are called, or provide a link? Or i suppose i could leave them in just replace the tails?

Thanks for your help.

 

[terryplumb]

If you wish to remove the tail extenders you will need replacements as the pipe/ valve will not reach the radiator without them ,Unless you want to alter the pipework.
The tails are the part of the valves that connect to the radiator by the way.

 

[EdTurtle]

Ah ok, so i am replacing the pipework coming out of the floor - not tails? So If i remove those extenders, i need to buy new (smaller) ones? Are there such things as variable ones, ie that slide in and out to change the length?

Thanks

 

[Elkato531]

You can buy sliding adjustable ones, but don't. They are crap and will leak

 

[Elkato531]

Tesla 1/2" BSP Male Taper x 15mm Compression Rigid TRV Extension Piece 60mm - Screwfix

Order online at Screwfix.com. 15 x 60mm chrome-plated shank with nut and olive. Cut down with pipe slice or hacksaw. FREE next day delivery available, free collection in 1 minute.

www.screwfix.com

These are better and can be cut to length. Also available in 100mm length.

 

[terryplumb]

If you intend to move the pipework to the correct position ,closer to the radiator, you don't need any tail extensions.

 

[EdTurtle]

Thanks all.

If you intend to move the pipework to the correct position ,closer to the radiator, you don't need any tail extensions.

This is what i am trying to do. So, what do i need to do then? Remove the extensions that are there, and then just screw the other part in, or do i need to get anything else to do the job?

Thanks

 

[terryplumb]

Besides what you need to drain the system,cut into the pipework, and extend the pipework ,bringing it to the new position ? You would need PTFE tape to wrap around the thread of the valve tail before fitting it to the radiator inlet.

 

[EdTurtle]

Besides what you need to drain the system,cut into the pipework, and extend the pipework ,bringing it to the new position ? You would need PTFE tape to wrap around the thread of the valve tail before fitting it to the radiator inlet.

Yeah, i get all the extra stuff... I suppose my question could be worded better - Will the TRV valve screw into the radiator directly once i remove the tail extenders?

Thanks, and i'm sorry if this is really obvious, i just dont want to be in a position of having the radiator off then discovering i need to go and get extra bits.

 

[terryplumb]

The valve tail is the part in your pic that connects to the " valve tail extension".
And the valve tail should screw ( with PTFE tape applied) into the radiator, if your new pipework is fitted in the correct place.

 

[EdTurtle]

The valve tail is the part in your pic that connects to the " valve tail extension".
And the valve tail should screw ( with PTFE tape applied) into the radiator, if your new pipework is fitted in the correct place.

Excellent, thanks for the info and advice.