HYDRAULIC HAND PUMP HEAD Brand new, WOLVERINE by PRINCE model WHP-21-DA double acting hydraulic hand pump. Includes 4 way 3 position directional control valve. Pump head only. Reservoir sold separately.
Pressure 3500 PSI
Flow 2.1 cu.-in./cycle(up and down)
Outlet Port 3/8" NPT adapter installed in #4 BSPP port
A: These hand pumps can be used with item 9-7899 or 9-7900 to achieve a float function as long as the float valve has a dedicated passage back to the reservoir. The 9-8438-180 and 9-8438-300 reservoirs compatible with the hand pump both have an additional, unused port that can be used for this purpose if necessary.
Date Submitted: 10/18/2018
will this unit whp 21-da work as a single acting pump also? thank you
A: Unfortunately, no. Due to the valving it will only work as double-acting.
Date Submitted: 01/18/2018
Dual Action on this pump means that it pumps on both the up and down stroke of the handle right?
A: The Double Acting means it can power a hydraulic cylinder both ways due to the onboard valving. It also pumps on both the up and down strokes of the handle.
Date Submitted: 01/05/2017
Is there a flow diagram with hand pump for possible connections? Recently purchased for dump trailer with a double action piston and want to know what my options are for connecting before I guess at it.
A: We do not have a flow diagram available. There are two outlets. Simply connect the lines from the cylinder to the two outlets, and shift the spool using the directional control handle to dictate which is extend and retract.