How to make hydraulic valve?

[RCP57]

Originally Posted by ihbuilder

JW : steel or iron next to brass would be the best choice for your manifold . Aluminum does not wear well .


Madda : O-rings work well for the seals as you should only have to seal the shaft of the rotor and the rotor cap . between the rotor and the valve block , you should have a lapped fit .

I agree with Steve 100%. The valve that I made for my skidder is all aluminum with brass rotors but it may not last long. The valve block that my father in-law made for my EC300DL has a steel manifold and should last much longer. The shafts are sealed with common O rings on both. The EC300 runs at 30-35 bar with no leaks on the valve shafts.