Belmont thermostatic valve head

[johnsco]

Hi All.
Can anyone help me ?
I have been looking everywhere for a replacement head for a Pegler Belmont thermostatic valve.
These have been obsolete for some years.
Pegler's cannot help.
I have scoured various merchants and asked my contacts.
If anyone has one (or preferably two), I'm offering used fivers.
Second hand is OK as long as they work.
I hope these photos upload.
Thanks in advance

 

[Puddle]

Do you not need any thermostatic valve head with the same locking nut thread to the existing body (does not look uncommon)and then adjust inner pin as required maybe ?

imho

 

[johnsco]

Thanks Puddle.
I've taken the damaged head round a few merchants.
All the current ones appear to use a different locking ring.

If anyone knows of a replacement head that will fit, I'd be interested.
Although I'd prefer the original, if possible.