Membrane / gasket for heating valve

[Overknasten]

I have a problem with a leaking heating control valve. The membrane is broken and I cannot find a replacement anywhere.
I got 2 different, wrong membranes from Ricambio UK, I wrote to Omicron but didn´t get an answer. Anyone who knows where to get the rigth one?

Currently I have mounted a ball valve from the plumber, works fine but is quite uggly and very, very unlancia like......

[gcarenini]

Hello,

few years ago I've replaced mine, for emergency, with a flat viton membrane with a rubber spacer on the command pin in the position marked by red arrow in attachment. This solution worked and become definitive...
Unfortunately I haven't any pictures.

[Huib]

https://www.pieces-fulvia.com/heating-v ... models.htm

[Overknasten]

Dear all. Thanks a lot for the help, and thanks to Huib for the link to another and promising webpage with all the goodies (and no struggling due to Brexit)
Br. Bjarke