about our company

  Puyang Zhongshi Group Co., Ltd. was founded in 1996, which is the restructured enterprise of Central Plains oilfield branch company of SINOPEC . The company registered capital is 60.83 million yuan, with annual output value 200 million yuan, 580 employees, including more than 160 technical and administrative staff . Oil machinery is our main products, the leading products include pumping unit, subsurface sucker rod pump, wellhead (Christmas Tree), pressure vessels, drilling solid control series products and cementing accessories.

operating principle

Rod pump is equipped with a supporting joint , support joint is connected on the tubing, rod pump plunger is connected on the sucker rod string, and is fixed on the supporting joint through the sucker rod string to the tubing , the plunger along with the sucker rod string’s up and down reciprocating movement achieve pumping work. When pump appear quality problem, you needn't put forward tubing. Only through the sucker rod pull the whole pump from the well and operation is simple.

our packing