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Infinitely variable screw pumps type G
The G type stepless variable speed screw pump operates on the principle of counter-rotation of interacting elements with positive displacement. Its main operating components include an eccentric screw (rotor) and a fixed bushing (stator). The unique geometric configuration of these two components creates separate, sealed chambers. The product is transported evenly in the axial direction, characterized by low internal flow velocity and minimal noise.
Description
marker
Product overview
The G type stepless variable speed screw pump operates on the principle of counter-rotation of interacting elements with positive displacement. Its main operating components include an eccentric screw (rotor) and a fixed bushing (stator). The unique geometric configuration of these two components creates separate, sealed chambers. The product is transported evenly in the axial direction, characterized by low internal flow velocity and minimal noise. Due to the constant volume and stable pressure, there is no vortex formation or turbulence, which ensures that the original structure of the product is preserved. The stator, made of various elastic materials, allows the Yangguang screw pump to pump highly viscous liquids and media containing suspended solids or fibrous substances with capabilities superior to those of traditional types of pumps. Its consumption is directly proportional to the rotation speed.
Product benefits
Continuous, low pulsation flow, unaffected by pressure or viscosity fluctuations.
Wide range of applications, the ability to pump both bulk and non-bulk materials.
During pumping, the medium is not stirred, which avoids compression and shearing forces.
High efficiency with flow rate proportional to rotation speed, allowing flow control via frequency control.
Most liquids can be pumped with minimal agitation and pulsation.
Easy maintenance and repair combined with high pressure supply capability.
Scope of application
Oil industry: transportation of heavy oil, transportation of oil and gas mixtures, separation of oil and water, waste oil recycling systems.
Chemical and pharmaceutical industry: various pastes, emulsions, suspensions, etc.
Environmental Engineering: Transport of various wastewaters, transport of dewatered sludge, metering of flocculants and chemicals.
Mining engineering: production equipment for titanium dioxide, kaolin, calcium carbonate and similar materials.
Food industry: dairy products, fruit juices, fruit purees, vegetable sauces, beer, etc.
Pulp and paper industry: raw material processing equipment, pulping processes and wastewater treatment systems.
Performance Options
Performance parameters at fixed rotation speed:
| Model
| consumption (m³/h) | Pressure (MPa) | Permissible maximum rotation speed (r/min) | Engine power (kW) | Required cavitation margin (m) | Nominal diameter of imported flange (mm) | Nominal diameter of export flange (mm) | Allowable particle diameter (mm) | Allowable 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 |
Performance parameters of single stage variable speed gear motors, electromagnetic variable speed motors and variable speed gear motors or continuously variable speed motors and variable speed gear motors:
| Model | Pressure 0.3MPa | Pressure 0.6MPa | adjustable speed
| ||||||
| rotation speed (r/min) | consumption (m³/h) | Engine power (kW) | rotation speed (r/min) | flow rate (m³/h) | Engine power (kW) | rotation speed (r/min) | flow rate (m³/h) | Engine power (kW) | |
| G20-1 | 960 | 0.96 | 0.75-6stages/reducer | 960 | 0.8 | 0.75-6stages/reducer | 125～1250 | 0.1～1.5 | 1.1 |
| 720 | 0.8 | 0.55-8stages/reducer | 720 | 0.5 | 0.75-8stages/reducer | ||||
| 510 | 0.4 | 0.55-4stages/reducer | 510 | 0.3 | 0.75-4stages/reducer | ||||
| G25-1 | 960 | 2.4 | 0.75-6stages/reducer | 960 | 2 | 1.5-6 stages/reducer | 125～1250 | 0.1～3 | 1.5 |
| 720 | 1.5 | 0.55-8stages/reducer | 720 | 1.27 | 1.1-8 stages/reducer | ||||
| 510 | 1.08 | 0.55-4stages/reducer | 510 | 0.9 | 1.1-4 stages/reducer | ||||
| G30-1 | 960 | 3.6 | 1.5-6 stages/reducer | 960 | 3 | 2.2-6 stages/reducer | 125～1250 | 0.2～4 | 2.2 |
| 720 | 2.28 | 1.1-8 stages/reducer | 720 | 1.9 | 1.5-8 stages/reducer | ||||
| 510 | 1.63 | 1.1-4 stages/reducer | 510 | 1.35 | 1.5-4 stages/reducer | ||||
| G35-1 | 720 | 4.8 | 2.2-8 stages/reducer | 720 | 4.04 | 3-8 stages/reducer | 125～890 | 0.3～5 | 3 |
| 510 | 3.36 | 1.5-4 stages/reducer | 510 | 2.8 | 2.2-4 stages/reducer | ||||
| 380 | 1.92 | 1.1-4 stages/reducer | 380 | 1.6 | 1.5-4 stages/reducer | ||||
| G40-1 | 510 | 6.8 | 2.2-4 stages/reducer | 510 | 5.6 | 3-4 stages/reducer | 125～890 | 0.3～10 | 4 |
| 380 | 5.1 | 1.5-4 stages/reducer | 380 | 4 | 2.2-4 stages/reducer | ||||
| 252 | 2.65 | 1.1-6 stages/reducer | 252 | 2.2 | 1.5-6 stages/reducer | ||||
| G50-1 | 510 | 13.8 | 4-4 stages/reducer | 510 | 11.5 | 5.5-4 stages/gearbox | 80～750 | 1～18 | 5.5 |
| 380 | 10.2 | 4-4 stages/reducer | 380 | 7.5 | 5.5-4 stages/gearbox | ||||
| 252 | 5.6 | 3-6 stages/reducer | 252 | 4.4 | 5.5-6 stages/gearbox | ||||
| G60-1 | 510 | 20.8 | 7.5-4 stages/gearbox | 510 | 16 | 11-4 stages/reducer | 63～630 | 1～20 | 11 |
| 380 | 15.6 | 7.5-4 stages/gearbox | 380 | 12 | 11-4 stages/reducer | ||||
| 252 | 7.8 | 5.5-6 stages/gearbox | 252 | 6 | 7.5-6 stages/gearbox | ||||
| G70-1 | 510 | 26 | 11-4 stages/reducer | 510 | 20 | 11-4 stages/reducer | 56～560 | 1～22 | 11 |
| 380 | 17 | 7.5-4 stages/gearbox | 380 | 13 | 11-4 stages/reducer | ||||
| 252 | 9.1 | 7.5-6 stages/gearbox | 252 | 7 | 7.5-6 stages/gearbox | ||||
| G85-1 | 380 | 32 | 11-4 stages/reducer | 380 | 25 | 15-4 stages/gearbox | 37～370 | 2～24 | 15 |
| 252 | 21 | 7.5-6 stages/gearbox | 252 | 16 | 11-6 stages/reducer | ||||
| 189 | 11 | 5.5-8 stages/reducer | 189 | 8 | 11-8 stages/gearbox | ||||
| G105-1 | 380 | 80 | 15-4 stages/gearbox | 380 | 65 | 22-4 stages/gearbox | 29～290 | 3～50 | 22 |
| 252 | 44 | 15-6 stages/reducer | 252 | 34 | 22-6 stages/gearbox | ||||
| 189 | 29 | 11-8 stages/gearbox | 189 | 22 | 15-8 stages/gearbox | ||||
| G135-1 | 380 | 132 | 37-4stages/gearbox | 380 | 120 | 45-4stages/gearbox | 18～180 | 3～56 | 45 |
| 252 | 95 | 30-6stages/reducer | 252 | 80 | 37-6stages/gearbox | ||||
| 189 | 65 | 18.5-6 stages/gearbox | 189 | 53 | 30-8 stages/reducer | ||||
Performance parameters for two-stage systems using geared variable speed, variable speed and variable speed electromagnetic motors, or continuously variable speed and variable speed motors:
| Model | Pressure0.3MPa | Pressure0.6MPa | adjustable speed | ||||||
| rotation speed (r/min) | flow rate (m³/h) | Engine power (kW) | rotation speed (r/min) | flow rate (m³/h) | Engine power (kW) | rotation speed (r/min) | flow rate (m³/h) | Engine power kW) | |
| G20-1 | 960 | 0.96 | 0.75-6stages/reducer | 960 | 0.8 | 0.75-6stages/reducer | 125～1250 | 0.1～1.5 | 1.1 |
| 720 | 0.8 | 0.55-8stages/reducer | 720 | 0.5 | 0.75-8stages/reducer | ||||
| 510 | 0.4 | 0.55-4stages/reducer | 510 | 0.3 | 0.75-4stages/reducer | ||||
| G25-1 | 960 | 2.4 | 0.75-6stages/reducer | 960 | 2 | 1.5-6 stages/reducer | 125～1250 | 0.1～3 | 1.5 |
| 720 | 1.5 | 0.55-8stages/reducer | 720 | 1.27 | 1.1-8 stages/reducer | ||||
| 510 | 1.08 | 0.55-4stages/reducer | 510 | 0.9 | 1.1-4 stages/reducer | ||||
| G30-1 | 960 | 3.6 | 1.5-6 stages/reducer | 960 | 3 | 2.2-6 stages/reducer | 125～1250 | 0.2～4 | 2.2 |
| 720 | 2.28 | 1.1-8 stages/reducer | 720 | 1.9 | 1.5-8 stages/reducer | ||||
| 510 | 1.63 | 1.1-4 stages/reducer | 510 | 1.35 | 1.5-4 stages/reducer | ||||
| G35-1 | 720 | 4.8 | 2.2-8 stages/reducer | 720 | 4.04 | 3-8 stages/reducer | 125～890 | 0.3～5 | 3 |
| 510 | 3.36 | 1.5-4 stages/reducer | 510 | 2.8 | 2.2-4 stages/reducer | ||||
| 380 | 1.92 | 1.1-4 stages/reducer | 380 | 1.6 | 1.5-4 stages/reducer | ||||
| G40-1 | 510 | 6.8 | 2.2-4 stages/reducer | 510 | 5.6 | 3-4 stages/reducer | 125～890 | 0.3～10 | 4 |
| 380 | 5.1 | 1.5-4 stages/reducer | 380 | 4 | 2.2-4 stages/reducer | ||||
| 252 | 2.65 | 1.1-6 stages/reducer | 252 | 2.2 | 1.5-6 stages/reducer | ||||
| G50-1 | 510 | 13.8 | 4-4 stages/reducer | 510 | 11.5 | 5.5-4 stages/gearbox | 80～750 | 1～18 | 5.5 |
| 380 | 10.2 | 4-4 stages/reducer | 380 | 7.5 | 5.5-4 stages/gearbox | ||||
| 252 | 5.6 | 3-6 stages/reducer | 252 | 4.4 | 5.5-6 stages/gearbox | ||||
| G60-1 | 510 | 20.8 | 7.5-4 stages/gearbox | 510 | 16 | 11-4 stages/reducer | 63～630 | 1～20 | 11 |
| 380 | 15.6 | 7.5-4 stages/gearbox | 380 | 12 | 11-4 stages/reducer | ||||
| 252 | 7.8 | 5.5-6 stages/gearbox | 252 | 6 | 7.5-6 stages/gearbox | ||||
| G70-1 | 510 | 26 | 11-4 stages/reducer | 510 | 20 | 11-4 stages/reducer | 56～560 | 1～22 | 11 |
| 380 | 17 | 7.5-4 stages/gearbox | 380 | 13 | 11-4 stages/reducer | ||||
| 252 | 9.1 | 7.5-6 stages/gearbox | 252 | 7 | 7.5-6 stages/gearbox | ||||
| G85-1 | 380 | 32 | 11-4 stages/reducer | 380 | 25 | 15-4 stages/gearbox | 37～370 | 2～24 | 15 |
| 252 | 21 | 7.5-6 stages/gearbox | 252 | 16 | 11-6 stages/reducer | ||||
| 189 | 11 | 5.5-8 stages/reducer | 189 | 8 | 11-8 stages/gearbox | ||||
| G105-1 | 380 | 80 | 15-4 stages/gearbox | 380 | 65 | 22-4 stages/gearbox | 29～290 | 3～50 | 22 |
| 252 | 44 | 15-6 stages/reducer | 252 | 34 | 22-6 stages/gearbox | ||||
| 189 | 29 | 11-8 stages/gearbox | 189 | 22 | 15-8 stages/gearbox | ||||
| G135-1 | 380 | 132 | 37-4stages/gearbox | 380 | 120 | 45-4stages/gearbox | 18～180 | 3～56 | 45 |
| 252 | 95 | 30-6stages/reducer | 252 | 80 | 37-6stages/gearbox | ||||
| 189 | 65 | 18.5-6 stages/gearbox | 189 | 53 | 30-8 stages/reducer | ||||
Note:
The above operating parameters are test data obtained at ambient temperature using pure water.
Operating parameters will vary for different environments and rotation speeds. Flow rate is proportional to concentration and viscosity and directly proportional to rotation speed.
Users should select the pump type based on operating requirements, fluid characteristics and selection principles, or consult customer service to determine the appropriate pump type.
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