Can you identify this TRV valve please?

[Sentry1]

Hello! I need to fit a Honeywell Evohome TRV to this valve.

Hard to tell but I think the diameter of the threaded area is 28mm. There is, I would say, 1mm between each thread. The height of the pin itself is 13mm. The height of the top of the pin from the top of the thread is about 20mm.

Once I know what standard this is I can buy an adapter. If it's non standard I have to fit a whole new valve which I really hope to avoid.

 

[Steelmasons]

Give "Castrads Wimbledon" a call....have a look on their website..

 

[Gas2Air]

Why do you want to change it?

 

[leakydave]

"The Radiator Company" http://www.theradiatorcompany.co.uk/
may be able to help.

 

[slippyr4]

Why do you want to change it?

Because he's fitting evohome

 

[Gas2Air]

Because he's fitting evohome

Yes that'll make things better.

 

[Twenty Four]

Your best bet is to ask here.

 

[Sentry1]

Thanks to you all for your replies on this. I'll follow your suggestions and let you know how things go.

As for Evohome, I have to main reaction so far. The difference to the consistency of heating throughout the house (4 story semi) is fantastic. Downside - the TRVs are noisy which is so surprising. Surely it would be really simple to change the gearing or something to minimise this awful noise.

 

[schlafsack]

Apologies for digging up an old thread, but did you find an adaptor for this TRV. I'm in the same position.

 

[ianmcd]

if your TRVs are noisy they are fitted on the wrong end