What is the difference between a single speed and two speed hand pump?
For some sectors of the hydraulic industry, “single acting” describes a pump which has a single pressure outlet and is suitable for operating single acting cylinders. It would probably have a hold/release valve (needle valve) for lowering the cylinder by returning the pressurised oil back to tank. A “double acting” pump would describe a pump with a directional control valve built in and two pressure ports to allow a double acting ram to be controlled. Move the control valve one way and the cylinder extends and move it the other way and the cylinder retracts. Contact us to discuss the best configuration of hand pump for your application.
