Dynex Checkball Pumps

Dynex Checkball Pumps
From 60 years Dynex is producing and  constantly improving the Checkball hydraulic pump.  This unique pump design has proven effective in hydraulic systems with the most demanding conditions including:
Pressure Spikes
Contamination
Dirty Environments
Special Fluids
Extreme Temperatures
Long Duty Cycles
High Pressure

These checkball pumps are bi-directional and can operate at pressures to 20 000 psi (1380 bar).


High Efficiency Design
The checkball pump design uses piston check valves to direct flow from the pump inlet to the outlet. The positive-seating check valves provide high volumetric efficiency, especially at higher pressures.

Contamination Tolerant
The outlet check valves provide a relatively large flushing path for any system contamination. This makes the pumps ideal for systems where the fluid cannot be totally cleaned by filtration, or where it is just not economical.

Improved Performance with Low-Viscosity Fluids
The positive-seating action of the check valves provides better wear and greater volumetric efficiency, even with lower-viscosity fluids and higher pressures.