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PostPosted: Sat Nov 04, 2017 12:47 pm 
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Hi

I have an old F & E system that that I think Noah installed but cannot replace at the moment.

I stupidly made the mistake of touching it when it was working, yes I know "If it 'aint broke don't fix it". So now I have a very leaky valve from the lockshield and obviously cannot obtain a replacement museum piece!

So having read this post http://www.ultimatehandyman.co.uk/forum1/installing-a-trv-into-old-radiator-t69020.html and lots of research around it seems the most sensible fix for me for now, is to move the TRV to the other side of the rad running pipework from the feed out of the floor under the rad and up the RHS. While adding a B&Q (cant find one elsewhere) Plumbsure 8mm Straight Rad Valve as a lockshield. I have sourced 8mm elbows and a 8mm to 15mm for the run under the rad.

While it may not look pretty as far as I can see it should work.

What I would like please is any advice or comments about this and any alternatives, apart from rip it all out and start again.

Thanks in advance

Dave

PS I meant to add a pic or two

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PostPosted: Sat Nov 04, 2017 7:08 pm 
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Nothing wrong with what you are suggesting, although 8. & 10mm valves are available over the counter at any plumbers merchant.

Personally, although I am familiar with twin pipe valves, I have never seen one like this.

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PostPosted: Tue Nov 07, 2017 8:21 pm 
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Dave, if you want one for your collection . . . lol


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PostPosted: Tue Nov 07, 2017 9:05 pm 
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I've not seen a double entry valve like that either. Why not do the whole run in 8mm and tuck it up under the rad so it can't be seen?

Normally there will be a tube in the rad that goes from the valve towards the other end - be warned it's probably thick with sludge

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PostPosted: Tue Nov 07, 2017 9:45 pm 
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Since posting I have spoken to a mate who asked why I was planning to keep the TRV at the top? :dunno: :scratch:

And I have found that I can replace this TRV, which is 15mm, with an 8mm so now the plan is to do as you say and run in 8mm and tuck it up behind the rad.

I did see a video somewhere that suggested there was a tube inside the rad, but I don't think so in my case as the valve connectors are offset. (Please excuse the b*m fluff!)
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