According to the needs of oilfield development,the company developed un-leak sand-prevention high-efficient Subsurface sucker rod pump that is made up of short cylinder and long plunger,which is advanced in the aspects of sand control,leak proof,environmental-protection property and high effciency.Speficaitions & parameters of un-leak sand-prevention high-efficient Subsurface sucker rod pump.

Specification
Type

Plunger

Sealing sleeve

Bottom valve
assembly

Pressure test
MPa

Test mumber

Length
mm

Diameter
mm

Maximum OD

Rod type

Length
mm

Maximum OD

Connecting
pipe type

Length
mm

Connecting
pipe type

φ 44

3.6-7.5

44.5

50

3/4＂

570

89

73mm

1.5

73mm

20

2.2396

φ 50

3.6-7.5

50.5

54

3/4＂

570

89

73mm

1.5

73mm

20

3.827

φ 57

3.6-7.5

57.1

58

3/4＂

600

104

73mm

1.5

73mm

20

3.6874

φ 70

3.6-7.5

70

74

3/4＂

650

114

73mm

1.5

73mm

20

9.542