which replacement rad valve

[GazK]

Apologies if this is a bit of a noob question, but:

My mum has a Honeywell TRV on her radiator which has sheared off at the plastic fitting - here's whats left:

[img]https://lh5.googleusercontent.com/-u7eC7kISl2Q/UF9h6cVgQRI/AAAAAAAAG7s/a1rQuWm7xaA/s720/IMAG0397.jpg[/img]

Here's the fitting it came out of - a female locking ring:

[img]https://lh6.googleusercontent.com/-l5BSL4TanL0/UF9hFpHQeTI/AAAAAAAAG6w/6LHFVjUwKoM/s720/IMAG0395.jpg[/img]

I bought what I *thought* was a suitable replacement which would allow me to fit the new TRV without any fannying around with the water system itself. Here's what I bought:

[url]http://www.screwfix.com/p/honeywell-radplan-120-white-chrome-trv-15mm-angled/98369;jsessionid=XXp7QfvJ0KbT8ghVxSJBqfnYjRD6vgypmK2Sf2lQpJzKvg671gCk!-1777057642#[/url]

Problem is that valve has a female locking ring built onto the valve itself, which mates to a male elbow valve. I need the opposite fitting. Are these still available or do I have to drain down the system and fit the new male elbow which came with my screwfix purchase?

[Atticus Finch]

My mum has a Honeywell TRV on her radiator which has sheared off at the plastic fitting
Here's the fitting it came out of - a female locking ring.

The locking ring should unscrew completely from the valve body - use a wrench if tight, unscrews anticlockwise looking down. You can then fit the new head - set it to max to make fitting easier.

[GazK]

Thanks, I'll give that a go. Sorry about the messed up links, not sure what happened there...