Reference image. Final construction follows the confirmed model and quotation.
Screw Pumps
LG Vertical Screw Pump
Model: LG
LG Vertical 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
LG Vertical 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
Technical Performance Data
| Number | Number of revolutions （r/min） |
Flow （m3/h） |
pressure （Mpa） |
Head m |
Motor Power （kw） |
Necessary steam Erosion allowance （m） |
Inlet method orchid path （mm） |
Outlet method orchid path （mm） |
Allowed Diameter （mm） |
fiber allowed dimension length （mm） |
| LG10-1 | 960 | 0.1 | 0.6 | 60 | 0.55 | 4 | Dg25 | Dg25 | 0.8 | 15 |
| LG10-2 | 960 | 0.1 | 1.2 | 120 | 0.55 | 4 | Dg25 | Dg25 | 0.8 | 15 |
| LG13-1 | 960 | 0.4 | 0.6 | 60 | 0.55 | 4 | Dg25 | Dg25 | 0.8 | 15 |
| LG13-2 | 960 | 0.4 | 1.2 | 120 | 0.55 | 4 | Dg25 | Dg25 | 0.8 | 15 |
| LG15-1 | 960 | 0.8 | 0.6 | 60 | 0.75 | 4 | Dg25 | Dg25 | 1 | 20 |
| LG15-2 | 960 | 0.8 | 1.2 | 120 | 0.75 | 4 | Dg25 | Dg25 | 1 | 20 |
| LG20-1 | 960 | 1.2 | 0.6 | 60 | 0.75 | 4 | Dg25 | Dg25 | 1.5 | 25 |
| LG20-2 | 960 | 1.2 | 1.2 | 120 | 1.1 | 4 | Dg25 | Dg25 | 1.5 | 25 |
| LG25-1 | 960 | 2 | 0.6 | 60 | 1.5 | 4 | Dg32 | Dg25 | 2 | 30 |
| LG25-2 | 960 | 2 | 1.2 | 120 | 2.2 | 4 | Dg32 | Dg25 | 2 | 30 |
| LG30-1 | 960 | 5 | 0.6 | 60 | 2.2 | 4 | Dg50 | Dg40 | 2.5 | 35 |
| LG30-2 | 960 | 5 | 1.2 | 120 | 3.0 | 4 | Dg50 | Dg40 | 2.5 | 35 |
| LG35-1 | 960 | 8 | 0.6 | 60 | 3.0 | 4 | Dg65 | Dg50 | 3 | 40 |
| LG35-2 | 960 | 8 | 1.2 | 120 | 4.0 | 4 | Dg65 | Dg50 | 3 | 40 |
| LG40-1 | 960 | 12 | 0.6 | 60 | 4.0 | 4 | Dg80 | Dg65 | 3.8 | 45 |
| LG40-2 | 960 | 12 | 1.2 | 120 | 5.5 | 4 | Dg80 | Dg65 | 3.8 | 45 |
| LG50-1 | 960 | 20 | 0.6 | 60 | 5.5 | 4．5 | Dg100 | Dg80 | 5 | 50 |
| LG50-2 | 960 | 20 | 1.2 | 120 | 7.5 | 4．5 | Dg100 | Dg80 | 5 | 50 |
| LG60-1 | 960 | 30 | 0.6 | 60 | 11 | 5 | Dg125 | Dg100 | 6 | 60 |
| LG60-2 | 960 | 30 | 1.2 | 120 | 15 | 5 | Dg125 | Dg100 | 6 | 60 |
| LG70-1 | 720 | 45 | 0.6 | 60 | 11 | 5 | Dg150 | Dg125 | 8 | 70 |
| LG70-2 | 720 | 45 | 1.2 | 120 | 15 | 5 | Dg150 | Dg125 | 8 | 70 |
| LG85-1 | 720 | 65 | 0.6 | 60 | 15 | 5 | Dg150 | Dg150 | 10 | 80 |
| LG85-2 | 720 | 65 | 1.2 | 120 | 18.5 | 5 | Dg150 | Dg150 | 10 | 80 |
| LG105-1 | 720 | 145 | 0.6 | 60 | 22 | 5 | Dg200 | Dg200 | 15 | 110 |
| LG105-2 | 720 | 145 | 1.2 | 120 | 30 | 5 | Dg200 | Dg200 | 15 | 110 |
| LG135-1 | 720 | 350 | 0.6 | 60 | 37 | 5 | Dg250 | Dg250 | 20 | 150 |
| LG135-2 | 720 | 350 | 1.2 | 120 | 45 | 5 | Dg250 | Dg250 | 20 | 150 |
|
Fault |
Causes |
Ejection Method |
|
The pump can't start. |
l. New pump turn, fixed tight. 2 Voltage, current too high Three, medium past high. |
1. Helping to turn circles with tools and manpower 2. Inspections, adjustments 3. Diluent fluids |
|
I can't pump it. |
One, the rotation is wrong. 2. Inhalation pipeline problems Three, medium past high. 4. Turn, fixed or moving parts are damaged Five. Pump internal guidance jamming. |
1. Reorientation Check for leaks. Open the Outlet valve. 3. Diluent fluids 4. Inspection replacements 5. Exclude replacement
|
|
Flow can't reach. |
1. Pipe leaks 2. Valves are not fully open or partially blocked Three, Speed's too low. 4. Turn, fixed wear |
1. Inspection of repair pipes 2. Open all valves and remove congestion 3. Adjusted 4. Replacement losses
|
|
I can't reach the pressure. |
l. Rotation, fixed wear |
1. Replacement shifts, fixes |
|
Motor overheating |
One, Motor malfunction. Two. Outlet's overloaded. Motor overloaded. 3. The stubble is burned or glued to the rotor |
1. Check the Motor, Voltage, currents, frequencies 2. Check the Yang Cheng, open the Outlet Valve and block the block. 3. Replacement of damage
|
|
Flow pressure dropped sharply. |
1. Sudden congestion or leakage of pipes 2. Bad wear and tear 3. Sudden change in viscosity of liquid 4 and Voltage suddenly fell.
|
Individual exclusions by reference
|
|
There's a lot of leaks in the axle seal. |
1. Soft filling wear and tear 2. Mechanical seal damage |
1. Tightening or replacing fillings 2. Repair or replacement |
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 LG
SELECTION SUPPORT
Application-based pump selection
Send the liquid, flow, head or pressure, temperature, solids, installation, power supply and destination for a verified recommendation.
Discuss this application