Chinese API sucker rod pump
Mechanical seating or cup seating sucker rod pump description
For this type of pump, the barrel is put in the well to the designed depth with tubing.
then put the plunger into the barrel with sucker rod. Given the tubing size, the bore of the tubing pump is larger than that of the rod pump, so the pump rate is higher. According to seating mode, the rod pump can be divided into three types: Stationary Heavy Wall, Cup Seating, Tubing pump, THM pump (Stationary Heavy Wall Mech. Seating, Tubing Pump) and THD pump.


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