Large Scale Central

Frank S fuel valve

does anyone know where I can buy one? I think its a .5mm astor

Try Jason, it’s not Astor, but he’ll know where you might.

https://www.thetraindepartment.com/

The Frank S was made by Aster.

So you could also try LGB.

LGB of old no longer exists. Maybe modell-land.de as they got the pallets of parts.

Triple R services may have some insight into this issue as well.

http://www.realsteamservices.com/site/