m25x2 co2 valve

[adz600]

been looking for ages did loads of checking and ordered 4 from gas cylinders uk over the phone only for them to be bsp fitting soooo not happy,

so in need of 2 co2 valves to fit co2 extinguishers

surly someone must know where

ceros is waiting

[Max]

Can't you use the original fire extinguisher valves with a bolt put through them? So you tighten the bolt and it opens the valve?
I have tried to get screw valves in the past and it has proved nearly impossible.