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中枢l Heating
Need help understand radiator valves!
Hi all,
We're replacing a radiator in our living room that has a concrete floor. The pipes are 15mm wide and 1675mm apart. We want to put in a column radiator that is 1508mm wide.
The plumber has said he can extend the tails to make up the space, but he's said we can't use the valves we wanted (
https://www.castironradiators4u.co.uk/uk/059-traditional-trv-angled-satin-brushed-nickel-thermostatic-radiator-valves.html#SID=26). He said that as they have 3/4 inch ground face unions they won't work and we need to get valves with 1/2inch compression on both side of the valve, rad and pipe.
We have no experience with this and don't understand what he means. On the specs it says these valves have a 15mm inlet and a 1/2 inch coupler, so we can't see what the issue is.
Can anyone explain to me what the issue is and what we need to look for when we're looking at valves?
Will this valve work? https://www.castrads.com/valves/niva-antique-brass-angled-trv/
Thanks
Jo
4 Answers from MyBuilder Heating Engineers
Best Answer
This is what you need:
https://www.ebay.co.uk/itm/2-x-Radiator-Valve-Extensions-Universal-Adjustable-1-2-TRV-3-4-Lockshield-/252759049003?hash=item3ad99d032b
Then your original period valves will fit
Answered 8th May 2019
get a qualified plumber / heating engineer,your so called plumber should have known how to get over this,as boiler homecare says it is not hard.
Answered 9th May 2019
You can still use the chosen radvalves, all that’s needed is 2 extension bars to make up the spaces between rad & pipework
Answered 2nd Jun 2019
there is not difference between a valve with a 3/4" union or 1/2" union, both valves do the same job, they have 15mm compression feed and 1/2" connection into radiator, the 3/4" union is just that a 3/4" union nothing else
Answered 3rd Jun 2019
