Stuck Pump Unseating Device
    With the use of the Harbison-Fischer Stuck Pump Unseating Device it is no longer necessary to risk damaging or breaking sucker rods when trying to unseat stuck pumps. Neither is it necessary to pull wet tubing strings or strip rods. This device is activated by lowering the tubing weight onto the tubing anchor or the bottom of the well bore until the stuck pump is pushed out of the seating nipple by the weight of the tubing.

    This device is installed under the seating nipple above the tubing perforated nipple. After the Stuck Pump Unseating Device is actuated and the stuck pump is unseated, the tubing fluid will drain through the device and allow the pump to be pulled with the rods. A version is also available for tubing pumps.