Pampa Pumps
    There are three configurations of the Harbison-Fischer Pampa Pump. They are the Pampa Tubing Pump, Pampa Traveling Barrel Insert Pump and Pampa Stationary Barrel Insert Pump. All use the concept of a longer than normal plunger and shorter than normal barrel, such that the plunger length is chosen based on stroke length and the barrel length is chosen based on pump depth, just the opposite from a standard API style pump.

    These pumps are all excellent choices for rod pumping situations where normal style pumps have a tendency to stick or hang up due to particulates becoming trapped between the barrel and plunger. Since the plunger is longer than normal, it always strokes out of the barrel and washes clean with production fluid. Another feature is that the Pampa plunger is pulling the particulates away from the plunger/barrel interface on the upstroke, rather than running over the particulates and trapping them between the plunger and barrel.

    The two Pampa Insert Pumps are intended for use in wells that require insert pumps and produce sand or other particulates. The Pampa Tubing Pump is recommended for high production rates with sand or other particulates that hang up or stick common plungers. Both styles are available in corrosion and abrasion resistant materials