AntonLargiader
Well-known member
I got a nice Reliance 1.5HP motor with a Parker-Hannifin D14 pump and a valve assembly. The valve is marked 4MD 00 ZH 20 and I can't find anything on that. The valve has pneumatic solenoids on each side. Activating either one causes the pump to discharge through that side and it also relieves the pressure on the opposite port. So you can pump up a cylinder with port A and it will allow the opposite line to return fluid to the unit.
I'd like to plumb this to my two MC lifts. Easy enough to do one... block off port B, use solenoid A to lift and solenoid B to lower. But for two lifts, there must be a better valve assembly where I could have a lever for up and down on each side. This seems pretty modular on the Parker side.
Anyone know how to find the right kind of valve to let me do this? Most lift units just have release valves, so they go up with power and go down with power off and the lever. I'd want to raise and lower with a valve while the motor is running, and also control the speed of lowering.
Any ideas welcome.
Data sheet for pump: https://www.parker.com/literature/Literature Files/PUMPMOTOR/CAT/ENGLISH/0108a002.pdf
I'd like to plumb this to my two MC lifts. Easy enough to do one... block off port B, use solenoid A to lift and solenoid B to lower. But for two lifts, there must be a better valve assembly where I could have a lever for up and down on each side. This seems pretty modular on the Parker side.
Anyone know how to find the right kind of valve to let me do this? Most lift units just have release valves, so they go up with power and go down with power off and the lever. I'd want to raise and lower with a valve while the motor is running, and also control the speed of lowering.
Any ideas welcome.
Data sheet for pump: https://www.parker.com/literature/Literature Files/PUMPMOTOR/CAT/ENGLISH/0108a002.pdf