Fitting new radiator valves to micro bore system

[boblux]

I have to replace some radiator valves in a micro bore system. These have 10mm fittings. The only valves I can find on the market are for 15mm systems ( I need straight and angled thermostatic valves) Does anyone know where I can get conversion pieces that I can fit on the 15mm (probably 3/4 BSP) male connection on the valve and which have a 10mm (probably 1/2 inch BSP) male outlet to which I can attach the smaller diameter pipe with its nut and olive?
Or any better ideas?

 

[Galoka]

where on earth have you looked??? they are easily available, from multiple manufacturers. I like Drayton TRV4s

Random internet link, look on this page you'll see various 10mm TRV's:

http://www.plumbnation.co.uk/site/thermostatic-radiator-valves/?page=1

Lockshield/manual:

http://www.plumbnation.co.uk/site/manual-radiator-valves/?page=1