German 1/2" TRV body onto 15mm copper pipe ok?

[Simes123]

I'm replacing some unreliable ornate brass TRVs on cast iron rads, with Honeywell HR80s. I want to replace the TRV bodies at the same time (as I doubt the HR80s will fit the ornate valves in any case, and many are leaking/stuck.

However, I want brass TRV bodies rather than chrome, and I want TRV bodies compatible with the Honeywell HR80s, ideally without any adaptors. On Ebay.de, I can get Heimeier TRV bodies that are perfect, but they all seem to be listed as 1/2" over here. I know 1/2" is very close to 15mm.

Should I be ok to order these German TRVs? They look good quality, are available as body only at a good price and are in the right colour. I've searched endlessly in the uK for similar but to no avail.

Appreciate any advice!

Thanks, Simon

 

[Charnwood]

They are threaded valves. You'll need to adapt to copper:

 

[Simes123]

Ah, I'd not realised, but can see on the pictures now. Many thanks - that probably rules out this option.

Does anyone do an unplated, good quality brass TRV body in this country at a reasonable price?

i can live with chrome plated if they are a reasonable price I guess, but of good quality.

Simon

 

[45yearsagasman]

Perhaps you could provide a link and then get a more exact answer.

 

[Simes123]

These are the valves I was looking at:
http://www.ebay.co.uk/itm/400469461644?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1438.l2648

But now realise they are not the same as UK valves in that they are threaded. I'd like TRV bodies, like this, in brass, at a reasonable price and of good quality.

 

[Charnwood]

You do realise the HR80 is best fitted onto a horizontal TRV body for the display to be visible, aren't you? Unless you know a good chiropractor.

 

[Simes123]

Well, that's actually not strictly true.

The HR80UK accomodates a vertical installation as seen in the pictures here:

http://www.plumbarena.co.uk/product...-controller/?gclid=CMO11qal5bYCFYjLtAod5TYAPA

 

[swbjackson]

A google search brought up loads of brass TRVs.

https://www.google.co.uk/search?q=b...s=org.mozilla:en-GB:official&client=firefox-a

 

[Simes123]

I think I've spent hours on Google you know.

Those are ornate TRVs that are around £60 each and up. Not really a viable solution for this.

I want a TRV body - body only, not an ornate valve. It's for an HR80UK programmer valve head, so paying for an ornate valve is a bit of a waste.....

 

[Charnwood]

I presume you mean this picture:

That's why I suggested a chiropractor. You have to do contortions to read the screen. Or stand well back with a pair of binoculars.

 

[Charnwood]

How about getting chrome valves sandblasted, or use some umber paint?

 

[Simes123]

Yes - that's the vertical install, but I could also install horizonally with an angled valve (at least on some of the rads). But I would probably go vertically on all, as the display will be little used apart from setup (it's not really a TV or anything) and in any case, the set point is set from the Room Unit controlling the zone, so don't really see it as an issue myself.

Sandblasting would probably be quite a faff for 16 valves and lockshields - I can live with chrome, but thought I'd ask if anyone knew of any brass finished bodies (that aren't ornate).

 

[mickyg]

drayton trv4 has a gold one? close?

 

[Simes123]

Thanks for the suggestion - have read the Drayton valves have some compatability issues with the HR80s - I did think the gold ones might have been ok, but MrsW thinks they are a bit too bling, and I don't think they do them in body only, so at £30 a pop, get's a bit pricey! I was hoping for around a fiver a body in an ideal world lol