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White & Chrome Radiator Union Valve Tail 15mm 2 Pack (78169)

The extendable tail allows increased installation flexibility due to its lateral movement of up to 50mm (2"). ½" radiator connection.

  • Increases Installation Flexibility
  • 1 Year Guarantee
  • Increases Installation Flexibility

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White & Chrome Radiator Union Valve Tail 15mm 2 Pack is rated 3.7 out of 5 by 82.
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Rated 5 out of 5 by from Excellent to replace radiators Wanted to replace an old leaking Imperial radiator with a new metric one and these union valve tails worked a treat. Very easy to install overcoming the gap and also converting from 1/2 inch to 15mm. Cannot recommend highly enough.
Date published: 2017-01-02
Rated 5 out of 5 by from convert imperial to metric rad These are ideal if fitting a metric radiator in the place of an existing imperial sized one. They have the older style large nuts which fit older valves, so just turn off both valves crack the nut on one side of the radiator, catch the water that comes out and swap the radiator without draining the system. I had one small leak because the new rad had a sllightly different angle and this stressed the joint.
Date published: 2016-12-04
Rated 5 out of 5 by from Leaky Valves These valves would work fine in a vented (Low pressure system) but there can be problems with an unvented combi system. I had fitted one about a year ago in a combi boiler system and all was fine until recently when the boiler started to over pressure and the tail started to leak. It looks like the seal on the sliding part of these valves is weaker than a conventional joint and the excessive pressure proved to be too much. It's not a fault with the valve but it is a pain when it happens and its worth taking into account when you fit these valves. The solution (as has been said in another review a while ago) is to seal the valve on the inside with a silicon sealer (fernox is a good make) before you fit it and then after you fit the tail leave the rad dry for a hour or so while the silicon goes off. This should give a good joint which will hold pressure. Its a bit more messing around but still nothing like as time consuming as changing the pipework to the radiator.
Date published: 2016-12-02
Rated 5 out of 5 by from Perfect little solution I used these to replace a heated towel rail radiator in my bathroom, we had left the old tails in the old radiator and disposed of it all down the tip. However to my delight and surprise I came across these fitting which meant that the Radiator would fit easily and more to the point perfectly even though it was just a little longer than my old radiator, it fitted because of the telescopic pipe fittings which will go inside the radiator until it fits perfectly,easily and totally watertight. I cannot understand the White & Chrome description though as they are all chrome which pleased me no end, perhaps they come in white also??
Date published: 2016-11-25
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Are these suitable for use in a combi system?

Asked by: Vince86
Hello Vince86, If you question is regarding can this be fitted on a radiator used in a combi boiler system then this product would be suitable for use. For any other use we could not comment on whether this product is suitable as it made specifically for use on radiators. Thank you for using Q & A.
Answered by: Dcoz
Date published: 2017-01-16

This doesn't fit a standard size TRV. Is there an equivalent that isn't 1/2 inch?

Asked by: Lingalong
Hello Lingalong, Our alternative valve tail is a 15mm compression valve tail, Product code (10954). Here's a link: http://www.screwfix.com/p/radiator-compression-valve-tail-15mm-pack-of-2/10954 Thank you for using Q&A.
Answered by: LMac
Date published: 2016-08-23

Are the olives included?

Asked by: TMS27
The Olive is included on one end where the Nut is, and a rubber washer on the threaded end.
Answered by: yeldarb
Date published: 2016-10-28

How do you ajust the length of the tail?

Is the ferrule for the valve connection loose on the tail?
Asked by: Esore

How do you modify the length ?

The Tail has 2 flared ends so it seems you cannot change the length but reviews say it is easy to modify. If I cut one end, which one, and will it affect the sealing ?
Asked by: kingcol
No need to cut, the stem just slides into the radiator. Not installed mine yet, still be be convinced it will seal but I think it is intended to.
Answered by: Jason27
Date published: 2016-10-09
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Specification
Colour White & Chrome
Manufacturer Guarantee 1 Year Guarantee
Model No RMD-8518
Pack Size 2
Pieces in Pack/Case 2
Product Diameter 15 mm
Product Type Radiator Union Valve Tail
Thread Size 15 mm
Total Product Weight 0.087 kg

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