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Double-Horsehead Pumping Unit

Product Details:

Double-horsehead pumping unit is an energy saving product that has a long stroke and low SPM. It is used for pumping oil of middle and high viscosity and high water content.

In addition to the common advantages of conventional beam pumping unit, the unit has advantages of long in stroke length, small in dynamic loads and variation of the torque, high in efficiency, low in energy consumption, smooth in operation and easy in start, etc. A multi-purpose electric cabinet is incorporated in the unit, which has the functions of short circuit protection, overload or underload protection, offset without work, automatic start after power resuming, over speed control of the motor, etc. It is made of the materials cut by numerically controlled flame cutting machines to ensure accuracy and surface quality.

As compared with the same model of the conventional pumping unit, it increases the stroke length by about 70%, reduces energy consumption by 20-30% and decreases unit installed capacity by about 50%.

The unit is new in structure and evident in energy saving. It was taken as a stressed spreading project by CNPC in 1994 and a nationally stressed spreading project in 1995.

 

Technical specifications

Model

160-133-120 

228-180-120 

320-213-192 426-256-192 

456-305-192 640-365-240

426-213-192

 456-256-192 

640-305-192

 790-360-240

Max. rated load (100lb)

133 

120 

213 

256 

305 

365

Stroke Length ( in )

83,102,120

83,102,120

120,168,192

120,168,192 

120,168,192 

144,189,240

Stroke per minute (SPM)

5,7,9 

5,7,9 

4,5,6 

4,5,6 

4,5,6 

3,4,5,6

Motor power (hp)

15

 20  

25

 30 

30

41 

41 

50 

 50

61

Reducer torque (100in*lb)

160 

228 

320 

426  

426 

456 

456

640 

640

 790

Min height of carrier bar (in)

54 

54 

63 

63

 63 

53

Total weight (lbs)

30800 

39600 

52800

59400 

57200

63800 

74800

81400

90200

101200

External dimensions (in)

252x79x283 

276x79x283 

339x85x413  

339x91x413

379x110x413 

394x110x445