The barrel assembly and the standing valve assembly of the pump can be mounted and connected to the tubing on the ground, which are run into the well first, then connect the plunger assembly with the lower end of the sucker-rod and run them into the pump. Tubing pump has the characteristics as large flow rate, tight and sound structure. Standing valve has two types: non-pullable and pullable. The pullable standing valve tubing pump has cup type and mechanical type.

Technical specifications