How Solar Linear Rod Piston Pumps Work

Blackhawk positive-displacement piston pumps feature an all-weather drive motor above the wellhead, connected with high-quality downhole components. The pumping action is similar to that of an oilfield pump jack.

Above the wellhead:

A drive motor is matched to one of three power sources -- pneumatic, electric or solar. The motor pushes and pulls a durable, flexible drive rod connected to a reciprocating piston near the bottom of the well.

Below the wellhead:

Low-flow pumping action pulls liquid from the well without disturbing the formation:

The flexible fiberglass drive rod, enclosed in a riser-pipe cylinder, connects the motor to the piston in a pump barrel.
As the motor pulls up the rod, the piston creates suction at pump intake.
Liquid is pulled through a strainer into the foot valve.
Stainless-steel balls in the reciprocating piston and foot valve open naturally to allow liquid into the piston, then close to prevent liquid from returning.
The pumping action lifts liquid up the riser pipe with each stroke; the liquid exits a discharge tee above the wellhead.