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G-type Gearbox Reduction Screw Pump

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The G-type gearbox reduction screw pump is a new type of pump that operates according to the principle of rotary meshing volume. The main working components are eccentric screws (rotor) and fixed bushings (stator). Due to the special geometric shape of these two components, they form separate sealed chambers. The medium flows uniformly axially, with low internal flow velocity, low noise, constant volume, and stable pressure. Therefore, there is no vortex or agitation, and the medium will not be damaged by its inherent structure. Due to the use of multiple elastic materials in the stator, the gearbox reduction screw pump of Zhongcheng Pump Industry has characteristics that ordinary pumps cannot handle in the transportation of high viscosity fluids and media containing hard suspended particles or fibers. Its flow rate is directly proportional to the rotational speed.
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Product advantages

  • Continuous low pulsation conveying, unaffected by pressure and viscosity fluctuations.

  • Widely applicable, it can transport flowing or even non flowing materials.

  • The medium will not be stirred, squeezed or sheared during the pumping process.

  • High efficiency, the conveying volume is proportional to the rotational speed, and the conveying volume can be adjusted by frequency conversion.

  • Most liquids can be pumped with small agitation and pulsation.

  • Easy to maintain and repair, with high-pressure conveying capacity.

Selection scope

  1. Petroleum industry: heavy oil transportation, mixed oil and gas transportation, oil-water separation, and waste oil recovery systems.

  2. Chemical and pharmaceutical industries: various pastes, emulsions, suspensions, etc.

  3. Environmental engineering: various sewage transportation, dewatering sludge transportation, metering and dosing of flocculants and their chemical agents, etc.

  4. Mineral engineering: production equipment for titanium dioxide, kaolin, calcium carbonate, etc.

  5. Food industry: dairy products, fruit juice, puree, vegetable sauce, beer, etc.

  6. Paper industry: raw material equipment, pulping, and wastewater treatment.


Performance Parameter

Performance parameters at fixed speed

Model

Flow

(m³/h)

Pressure

(Mpa)

Max allowed revolutions

(r/min)

Motor Power

(kW)

Required NPSH

(m)

Inlet flange diameter

(mm)

Outlet flange diameter

(mm)

Allow particle diameter

(mm)

Allow fiber length

(mm)

G20-1

0.8

0.6

960

0.75

4

25

25

1.5

25

G20-2

1.2

1.5

G25-1

2

0.6

960

1.5

32

25

2

30

G25-2

1.2

2.2

G30-1

5

0.6

960

2.2

50

40

2.5

35

G30-2

1.2

3

G35-1

8

0.6

960

3

65

50

3

40

G35-2

1.2

4

G40-1

12

0.6

960

4

80

65

3.8

45

G40-2

1.2

5.5

G50-1

20

0.6

960

5.5

4.5

100

80

5

50

G50-2

1.2

7.5

G60-1

30

0.6

960

11

5

125

100

6

60

G60-2

1.2

15

G70-1

45

0.6

720

11

150

125

8

70

G70-2

1.2

15

G85-1

60

0.6

720

15

150

150

10

80

G85-2

1.2

450

22

G105-1

80

0.6

400

22

200

200

15

110

G105-2

1.2

350

30

G135-1

120

0.6

350

37

250

250

20

150

G135-2

1.2

280









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