How Do They Work?
Blackhawk positive-displacement piston pumps feature an all-weather drive motor above the wellhead, and durable, customizable downhole components in the well or sump.
Above, outside the well, sump or pipe
The drive motor is powered by a solar panel. The motor reciprocates back and forth, creating a suction that pulls fluid into the pump.
Inside the riser-pipe-cylinder
On the upstroke
- As the motor pulls the drive rod, the piston creates suction in the pump barrel.
- Fluid is pulled through a strainer and into the pump barrel. A standing check ball opens to allow fluid to pass into the drive-piston pump-barrel chamber.
- The check ball in the piston opens to pass the fluid to the next stage.
On the downstroke
- The check ball in the pump barrel closes to prevent fluid from returning.
- The check ball in the piston is pushed open by the force of the trapped fluid, allowing the fluid to move up the pump barrel cylinder and into a discharge pipe.
On the next upstroke
- . The check ball at the top of the piston closes, and another round of fluid from the pump enters the chamber to displace the liquid that has been released.
- When the check ball in the pump barrel opens, the drive piston ball closes. The piston check ball opens again on the downstroke, and the pump-barrel ball closes.