API 11AX  oil drilling sucker rod pumps

1 API certificate
2 Tubing size:15~40 in.co
3 Pump bore: 125-375
4 Barrel length:8-30ft
5 Plunger length:2-7ft
 
Comparing with conventional  tubing pump,The API Tubing Pump has better performance in corrosion resistance & antifriction aspects.Plunger of it is nickel plated on alloy base,inside  wall of barrel is plated hard cadmium,key parts,such as valve hood,valve ball,are made of materials with excellent mechanical performance and corrosion resistant property.Compared with conventional pump,the series of pump has a longer working life.

 Subsurface pump Per API Spec.11AX.






Main specifications and parameters
  
Comparing with conventional  tubing pump,The API Tubing Pump has better performance in corrosion resistance & antifriction aspects.Plunger of it is nickel plated on alloy base,inside  wall of barrel is plated hard cadmium,key parts,such as valve hood,valve ball,are made of materials with excellent mechanical performance and corrosion resistant property.Compared with conventional pump,the series of pump has a longer working life.
 Subsurface pump Per API Spec.11AX
Main specifications and parameters
The pump adopts tandem structure of two pumps with different diameters to form two independent working cavity, which operates simultaneously with high pump efficiency so as to realize large discharge capacity extraction. It is suitable for wells with sufficient liquid supply. Because of the large down resistance, it should be equipped with weighted lever. The on-off connector will also be equipped for the application of the pump.
The top anchored pump with stationary barrel is suitable for sand production well since the fluid discharged from the guide cage washes away the sand between tubing and the top of the pump.
 
  But the pump barrel is more subject to inside pressure and tensile load caused by the fluid column, and the plunger clearance will intend to increase during up stroke so the top anchored pumps are not recommended in deep wells.