Screw Pump
1 hp (0.75 kW) Screw Pump, 380V
2 hp (1.5 kW) Screw Pump, 380V
3 hp (2.2 kW) Screw Pump, 380V
4 hp (3 kW) Screw Pump, 380V
5.5 hp (4 kW) Screw Pump, 380V
7.5 hp (5.5 kW) Screw Pump, 380V
10 hp (7.5 kW) Screw Pump, 380V
15 hp (11 kW) Screw Pump, 380V
20 hp (15 kW) Screw Pump, 380V
25 hp (18.5 kW) Screw Pump, 380V
What Is a Screw Pump?
A screw pump is a positive displacement pump that uses rotating screw-shaped components to transfer fluids through the pump chamber. By creating sealed cavities between the rotating screw and the pump housing, it provides continuous and stable fluid movement. Screw pumps are available in different designs, and single screw pumps are commonly used for industrial applications requiring stable fluid transfer and handling of viscous media.
How Does a Screw Pump Work?
A screw pump works by rotating one or more screw-shaped components to create moving chambers that transfer fluid from the suction side to the discharge side. In a single screw pump, the rotor rotates inside the stator to form continuously moving sealed cavities, which move the fluid smoothly along the pump axis. This positive displacement working principle enables screw pumps to provide stable flow and transfer different industrial fluids according to the pump design and operating conditions.
Where Are Screw Pumps Used?
Screw pumps are used in various industries where reliable fluid transfer and stable pumping performance are required. Their applications depend on the pump structure, material selection, and characteristics of the handled fluid.
Common applications include:
- Wastewater Treatment: Screw pumps are commonly used for transferring sludge, wastewater, and fluids containing suspended particles in treatment processes.
- Chemical Processing: They are applied for transferring industrial liquids where stable and controlled fluid movement is required.
- Oil and Energy Industry: Screw pumps are used for transferring industrial oils and other process fluids in oil transfer and related industrial systems.
- Marine Systems: They can be applied in marine fluid handling systems that require continuous operation and reliable pumping performance.
- Industrial Fluid Transfer: Screw pumps are used in manufacturing and industrial equipment for moving process fluids.
Screw Pump vs Gear Pump: What Is the Difference?
Screw pumps and gear pumps use different internal structures to transfer fluids. A screw pump uses rotating screws to create fluid transfer chambers, while a gear pump uses the meshing action of rotating gears.
| Feature | Screw Pump | Gear Pump |
| Working Mechanism | Uses rotating screw(s) to create sealed chambers that continuously move fluid from the inlet to the outlet. | Uses rotating gears to trap and transfer fluid between the gear teeth and pump housing. |
| Flow Performance | Provides smooth and continuous flow with low pulsation, suitable for stable fluid transfer. | Provides consistent flow, while flow pulsation can be more noticeable depending on the gear design and operating conditions. |
| Fluid Handling Capability | Suitable for medium to high-viscosity fluids, including sludge, oils, chemicals, and industrial liquids. | Commonly used for low to medium-viscosity fluids such as hydraulic oil, lubricants, and fuel. |
| Typical Applications | Used in wastewater treatment, chemical processing, marine systems, and industrial fluid transfer. | Used in hydraulic equipment, lubrication systems, fuel transfer, and other fluid power applications. |
What Types of Single Screw Pumps Does ATO Provide?
ATO provides G series single screw pumps designed for industrial fluid transfer applications. The series includes multiple models to meet different pumping requirements.
- Power Options: ATO single screw pumps are available from 1 hp (0.75 kW) to 25 hp (18.5 kW) with 380V voltage options, providing options for different system capacity requirements.
- Flow and Pressure Range: The series includes models with flow rates from 0.8 m³/h to 38 m³/h and pressure ratings from 0.6 MPa to 1.2 MPa, suitable for various industrial pumping conditions.
- Rotor and Stator Structure: ATO G series single screw pumps use a rotor and stator design to form continuous transfer chambers, enabling smooth fluid movement with reduced pulsation and stable operation.
- Fluid Handling Capability: These single screw pumps are suitable for transferring high-viscosity fluids, sludge, and other industrial fluids within the recommended operating range.
- Installation Flexibility: Different models are available with various flange sizes and configurations to fit different industrial piping systems.
