Another hydraulic pump option

[RCP57]

Originally Posted by DADSGARAGE

I have been thinking about using/trying some small pneumatic valves....they're not very costly but they are somewhat big.....and have a low pressure rating...or you just need bigger cylinders...LOL
KP

Be careful of the pneumatic rotary valves. My father in-law machined a valve block for my Volvo that was very close to the rotary style that Princess Auto sells. At 30 bar you could barely turn the valves with pliers. Too much surface area for that kind of pressure.