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

  1. As the motor pulls the drive rod, the piston creates suction in the pump barrel.
  2. 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.
  3. The check ball in the piston opens to pass the fluid to the next stage.

On the downstroke

  1. The check ball in the pump barrel closes to prevent fluid from returning.
  2. 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

  1. . 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.
  2. 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.