Reference image. Final construction follows the confirmed model and quotation.
Screw Pumps
G Screw Pump
Model: G
G Screw Pump is designed for viscous liquids, sludge, food, paper, chemical and process transfer. DFIN Pump provides model verification, material selection and technical support based on the actual duty point.
TECHNICAL DATA
Specifications, performance and construction
Confirm the final operating point, materials, motor and connection standard before ordering.
Product Overview
G Screw Pump is an industrial screw pump selected for viscous liquids, sludge, food, paper, chemical and process transfer. The final configuration should be verified against the actual liquid, duty point, temperature, installation and power supply.
Typical Applications
Viscous liquids, sludge, food, paper, chemical and process transfer.
Design Features
- Low-pulsation delivery
- Good suction capability
- Speed-proportional flow
- Model and material selection supported by DFIN Pump engineers
Extracted Operating Data
- 0.6MPa—1.2MPa， 60m—120m（ ）， 3m
Values are reference data from the authorized source catalog. Confirm the selected model before ordering.
Technical Performance Data
| Model |
Flow (m3/h) |
pressure (Mpa) |
allow High RPM (r/min) |
Motor Power (kw) |
Necessary steam Erosion allowance (m) |
Inlet method |
Outlet method orchid path (mm) |
Allowed Diameter (mm) |
fiber allowed dimension 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 | 720 | 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 | 18.5 | |||||||
| G85-1 | 65 | 0.6 | 630 | 15 | 150 | 150 | 10 | 80 | |
| G85-2 | 1.2 | 30 | |||||||
| G105-1 | 100 | 0.6 | 500 | 30 | 200 | 200 | 15 | 110 | |
| G105-2 | 1.2 | 55 | |||||||
| G135-1 | 150 | 0.6 | 400 | 45 | 250 | 250 | 20 | 150 | |
| G135-2 | 1.2 | 90 |
| Model | Pressure 0.3Mpa | Pressure 0.6Mpa | Adjustable number of revolutions | ||||||
| Number of revolutions (r/min) |
Flow (m3/h) |
electric motor Power (kw) |
Number of revolutions (r/min) |
Flow (m3/h) |
electric motor Power (kw) |
Number of revolutions (r/min) |
Flow (m3/h) |
electric motor Power (kw) |
|
| G20-1 | 960 | 0.96 | 0.75-6 level | 960 | 0.8 | 0.75-6 level | 125～1250 | 0.1～1.5 | 1.1 |
| 720 | 0.8 | 0.55-8 level | 720 | 0.5 | 0.75-8 level | ||||
| 510 | 0.4 | 0.55-4 level/gearbox | 510 | 0.3 | 0.75-4 level/gearbox | ||||
| G25-1 | 960 | 2.4 | 0.75-6 level | 960 | 2 | Level 1.5-6 | 125～1250 | 0.1～3 | 1.5 |
| 720 | 1.5 | 0.55-8 level | 720 | 1.27 | Level 1.1-8 | ||||
| 510 | 1.08 | 0.55-4 level/gearbox | 510 | 0.9 | 1.1-4 stage/gearbox | ||||
| G30-1 | 960 | 3.6 | Level 1.5-6 | 960 | 3 | Level 2.2-6 | 125～1250 | 0.2～4 | 2.2 |
| 720 | 2.28 | Level 1.1-8 | 720 | 1.9 | Level 1.5-8 | ||||
| 510 | 1.63 | 1.1-4 stage/gearbox | 510 | 1.35 | 1.5-4 stage/gearbox | ||||
| G35-1 | 720 | 4.8 | Level 2.2-8 | 720 | 4.04 | Level 3-8 | 125～890 | 0.3～5 | 3 |
| 510 | 3.36 | 1.5-4 stage/gearbox | 510 | 2.8 | 2.2-4 stage/gearbox | ||||
| 380 | 1.92 | 1.1-4 stage/gearbox | 380 | 1.60 | 1.5-4 stage/gearbox | ||||
| G40-1 | 510 | 6.8 | 2.2-4 stage/gearbox | 510 | 5.6 | Level 3-4/Gearbox | 125～890 | 0.3～10 | 4 |
| 380 | 5.1 | 1.5-4 stage/gearbox | 380 | 4 | 2.2-4 stage/gearbox | ||||
| 252 | 2.65 | 1.1-6 stage/gearbox | 252 | 2.2 | 1.5-6 stage/gearbox | ||||
| G50-1 | 510 | 13.8 | 4-4 stage/gearbox | 510 | 11.5 | 5.5-4 stage/gearbox | 80～750 | 1～18 | 5.5 |
| 380 | 10.2 | 4-4 stage/gearbox | 380 | 7.5 | 5.5-4 stage/gearbox | ||||
| 252 | 5.6 | Level 3-6/Gearbox | 252 | 4.4 | 5.5-6 stage/gearbox | ||||
| G60-1 | 510 | 20.8 | 7.5-4 stage/gearbox | 510 | 16 | 11-4 level/gearbox | 63～630 | 1～20 | 11 |
| 380 | 15.6 | 7.5-4 stage/gearbox | 380 | 12 | 11-4 level/gearbox | ||||
| 252 | 7.8 | 5.5-6 stage/gearbox | 252 | 6 | 7.5-6 stage/gearbox | ||||
| G70-1 | 510 | 26 | 11-4 level/gearbox | 510 | 20 | 11-4 level/gearbox | 56～560 | 1～22 | 11 |
| 380 | 17 | 7.5-4 stage/gearbox | 380 | 13 | 11-4 level/gearbox | ||||
| 252 | 9.1 | 7.5-6 stage/gearbox | 252 | 7 | 7.5-6 stage/gearbox | ||||
| G85-1 | 380 | 32 | 11-4 level/gearbox | 380 | 25 | 15-4 stage/gearbox | 37～370 | 2～24 | 15 |
| 252 | 21 | 7.5-6 stage/gearbox | 252 | 16 | Level 11-6/Gearbox | ||||
| 189 | 11 | 5.5-8 stage/gearbox | 189 | 8 | Level 11-8/Gearbox | ||||
| G105-1 | 380 | 80 | 15-4 stage/gearbox | 380 | 65 | 22-4 stage/gearbox | 29～290 | 3～50 | 22 |
| 252 | 44 | 15-6 level/gearbox | 252 | 34 | 22-6 stage/gearbox | ||||
| 189 | 29 | Level 11-8/Gearbox | 189 | 22 | Level 15-8/Gearbox | ||||
| G135-1 | 380 | 132 | 37-4 stage/gearbox | 380 | 120 | 45-4 stage/gearbox | 18～180 | 3～56 | 45 |
| 252 | 95 | Level 30-6/ gearbox | 252 | 80 | Level 37-6/ gearbox | ||||
| 189 | 65 | 18.5-6 / gearbox | 189 | 53 | Level 30-8/ gearbox | ||||
| Model | Pressure 0.8Mpa | Pressure 1.2Mpa | Adjustable number of revolutions | ||||||
| Number of revolutions (r/min) |
Flow (m3/h) |
electric motor Power (kw) |
Number of revolutions (r/min) |
Flow (m3/h) |
electric motor Power (kw) |
Number of revolutions (r/min) |
Flow (m3/h) |
electric motor Power (kw) |
|
| G20-2 | 960 | 0.96 | Level 1.5-6 | 960 | 0.8 | Level 1.5-6 | 125～1250 | 0.1～1.5 | 1.5 |
| 720 | 0.8 | Level 1.1-8 | 720 | 0.5 | Level 1.5-8 | ||||
| 510 | 0.4 | 1.1-4 stage/gearbox | 510 | 0.3 | 1.1-4 stage/gearbox | ||||
| G25-2 | 960 | 2.4 | Level 1.5-6 | 960 | 2 | Level 2.2-6 | 125～1250 | 0.1～3 | 2.2 |
| 720 | 1.5 | Level 1.1-8 | 720 | 1.27 | Level 1.5-8 | ||||
| 510 | 1.08 | 1.1-4 stage/gearbox | 510 | 0.9 | 1.5-4 stage/gearbox | ||||
| G30-2 | 960 | 3.6 | Level 3-6 | 960 | 3 | Level 3-6 | 125～1250 | 0.2～4 | 3 |
| 720 | 2.28 | Level 1.5-8 | 720 | 1.9 | Level 2.2-8 | ||||
| 510 | 1.63 | 1.5-4 stage/gearbox | 510 | 1.35 | 2.2-4 stage/gearbox | ||||
| G35-2 | 720 | 4.8 | Level 3-8 | 720 | 4.04 | Level 4-8 | 125～890 | 0.3～5 | 4 |
| 510 | 3.36 | 2.2-4 stage/gearbox | 510 | 2.8 | Level 3-4/Gearbox | ||||
| 380 | 1.92 | 1.5-4 stage/gearbox | 380 | 1.60 | 2.2-4 stage/gearbox | ||||
| G40-2 | 510 | 6.8 | 4-4 stage/gearbox | 510 | 5.6 | 5.5-4 stage/gearbox | 125～890 | 0.3～10 | 5.5 |
| 380 | 5.1 | Level 3-4/Gearbox | 380 | 4 | 4-4 stage/gearbox | ||||
| 252 | 2.65 | 2.2-6 Class/ gearbox | 252 | 2.2 | Level 3-6/Gearbox | ||||
| G50-2 | 510 | 13.8 | 5.5-4 stage/gearbox | 510 | 11.5 | 7.5-4 stage/gearbox | 80～750 | 1～18 | 7.5 |
| 380 | 10.2 | 4-4 stage/gearbox | 380 | 7.5 | 5.5-4 stage/gearbox | ||||
| 252 | 5.6 | Level 3-6/Gearbox | 252 | 4.4 | 5.5-6 stage/gearbox | ||||
| G60-2 | 510 | 20.8 | 15-4 stage/gearbox | 510 | 16 | 15-4 stage/gearbox | 63～630 | 1～20 | 15 |
| 380 | 15.6 | 11-4 level/gearbox | 380 | 12 | 15-4 stage/gearbox | ||||
| 252 | 7.8 | 7.5-6 stage/gearbox | 252 | 6 | Level 11-6/Gearbox | ||||
| G70-2 | 510 | 26 | 15-4 stage/gearbox | 510 | 20 | 18.5-4 level/ gearbox | 56～560 | 1～22 | 18.5 |
| 380 | 17 | 11-4 level/gearbox | 380 | 13 | 15-4 stage/gearbox | ||||
| 252 | 9.1 | Level 11-6/Gearbox | 252 | 7 | Level 11-6/Gearbox | ||||
| G85-2 | 380 | 32 | 18.5-4 level/ gearbox | 380 | 25 | 22-4 stage/gearbox | 37～370 | 2～24 | 22 |
| 252 | 21 | 15-6 level/gearbox | 252 | 16 | 18.5-6 / gearbox | ||||
| 189 | 11 | Level 15-8/Gearbox | 189 | 8 | Level 15-8/Gearbox | ||||
| G105-2 | 380 | 80 | 30-4 level/ gearbox | 380 | 65 | 37-4 stage/gearbox | 29～290 | 3～50 | 37 |
| 252 | 44 | Level 30-6/ gearbox | 252 | 34 | Level 30-6/ gearbox | ||||
| 189 | 29 | Level 22-8/ gearbox | 189 | 22 | Level 22-8/ gearbox | ||||
| G135-2 | 380 | 132 | 55-4 level/ gearbox | 380 | 120 | 75-4 level/ gearbox | 18～180 | 3～56 | 75 |
| 252 | 95 | Level 55-6/ gearbox | 252 | 80 | 75-6 level/ gearbox | ||||
| 189 | 65 | Level 37-8/ gearbox | 189 | 53 | 45-8 level/ gearbox | ||||
| Type of pump |
Flow (m3/h) |
Work Pressure (Mpa) | Transfers (r/min) | Gear deceleration with Speed Motor (kw) |
| G30-2 | ～1 | 1.2 | 30～300 | YCT160/4A-2.2 |
| G35-2 | ～2 | 1.2 | 30～300 | YCT160/4A-2.2 |
| G40-2 | ～3 | 1.2 | 30～280 | YCT160/4A-3 |
| G50-1 | ～4.5 | 0.6 | 28～280 | YCT180/4A-4 |
| G50-2 | ～4.5 | 1.2 | 28～280 | YCT200/4A-5.5 |
| G60-1 | ～6.5 | 0.6 | 25～250 | YCT200/4A-5.5 |
| G60-2 | ～6.5 | 1.2 | 25～250 | YCT200/4B-7.5 |
| G70-1 | ～8 | 0.6 | 25～250 | YCT200/4B-7.5 |
| G85-1 | ～12.5 | 0.6 | 18～180 | YCT225/4A-11 |
| G105-1 | ～20 | 0.6 | 14～140 | YCT225/4B-15 |
| G135-1 | ～35 | 0.6 | 10～100 | YCT250/4B-22 |
Selection Information Required
Please provide medium, concentration, flow, total head or pressure, temperature, viscosity or solids, voltage, frequency and installation method. DFIN Pump will confirm the suitable model and materials.
Catalog reference: authorized YZJ product data · Model G
SELECTION SUPPORT
Application-based pump selection
Send the liquid, flow, head or pressure, temperature, solids, installation, power supply and destination for a verified recommendation.
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