Hydraulic pneumatic questions!

[Liftoff]

Co2 adjustable tank regulators are difficult to find, HP air regs might work, construction is similar to Co2 reg.
You'll need a Co2 tank, a regulator ( HP burst disc is integrated in it) on/off valve, quarter turn valve (vent), safety valve (PRV) set at the lowest pressure your components can handle ( your operating press). Then you'll need a buffer tank, solenoid valve probably a QEV and some fitings and piping.
Have a look at this thread for more info on LP pneumatics:
http://www.fightingrobots.co.uk/thre...hlight=Liftoff