Description
KNKE Vertical Screw Pump Product Overview
The KNKE Vertical Screw Pump is a positive displacement pump designed for high-viscosity fluids and slurries. It is ideal for transporting thick liquids, including those with suspended solids or fibers. This pump is customizable to meet specific customer requirements, including varying submerged lengths.
The pump operates with a rotor-stator system. The stator contains a double-threaded spiral cavity, while the rotor meshes with it, creating sealed chambers. These chambers move fluid from intake to discharge, ensuring smooth flow without damaging the liquid.
KNKE Vertical Screw Pump Technical Specifications
| Parameter | Value |
| Nominal Diameter | 25mm to 100mm |
| Flow Range | 0.1 – 500 m³/h |
| Head Range | 120 meters |
| Power Range | 1.5 – 18.5 kW |
| Speed Range | 280 – 2900 r/min |
| Temperature Range | -20°C to 120°C |
| Working Pressure | 0.3 – 3.6 MPa |
| Drive Type | Gear Reducer |
KNKE Vertical Screw Pump Operating Principle & Features
The KNKE Vertical Screw Pump uses a rotor-stator mechanism. As the rotor rotates, it forms sealed chambers that transport fluid from intake to discharge. This design ensures smooth, continuous fluid movement without causing turbulence.
The stator’s double-threaded surface improves sealing and minimizes energy loss. This enables the pump to handle high-viscosity liquids and slurries with solid particles efficiently.
Additionally, this pump can manage slurries and fluids containing solid particles or fibers. It is perfect for industries requiring precise, uninterrupted fluid transport.
KNKE Vertical Screw Pump Applications
The KNKE Vertical Screw Pump excels in applications involving high-viscosity liquids and slurries. It handles solid concentrations up to 40%, and even 70% for powdered substances. The pump can also manage liquids with viscosities as high as 1,000,000 mPa·s (cp).
It is self-priming and can lift liquids from heights of 6-8.5 meters. This makes it ideal for applications where liquids need to be drawn from elevated sources. It is commonly used in food processing, chemicals, pharmaceuticals, and wastewater treatment.
Furthermore, this pump allows gas injection. This feature is useful for processes such as sterilization or gas-liquid blending, commonly required in food production.
KNKE Vertical Screw Pump Optional Materials
| Component | Material Options |
| Pump Casing | Cast Iron, 201, 304, 316, 316L |
| Rotor | Cast Iron, 201, 304, 316, 316L |
| Shaft | 201, 304, 316, 316L |
| Seal Type | Single Mechanical Seal, Double Mechanical Seal, Packing Seal |
KNKE Vertical Screw Pump Characteristics
The KNKE Vertical Screw Pump is ideal for transporting difficult media, including hard or soft solids, fibers, and abrasives. It is self-priming and can lift liquids from heights up to 8.5 meters. The pump offers linear flow control, where the flow rate is directly proportional to the rotational speed.
Equipped with a variable-speed drive, this pump provides precise flow control. It is ideal for applications that require stable, continuous fluid movement, such as chemical dosing or mixing. The simple construction of the pump also makes it easy to maintain and repair.
KNKE Vertical Screw Pump FAQ
Q1: Why is the KNKE Vertical Screw Pump ideal for high-viscosity liquids?
The KNKE Vertical Screw Pump uses a rotor-stator design to maintain constant volume in its chambers. This avoids turbulence, ensuring smooth flow even with thick liquids.
Q2: Can the pump handle media with solid particles?
Yes, the KNKE Vertical Screw Pump can handle liquids containing solid particles, fibers, or abrasives. Its design minimizes wear while maintaining efficient pumping.
Q3: How does the KNKE Vertical Screw Pump handle gas injection?
The KNKE Vertical Screw Pump allows for gas injection, which is beneficial for processes like sterilization or gas-liquid blending, such as those used in food production.
Q4: What is the maximum viscosity the pump can handle?
This pump can handle liquids with viscosities up to 1,000,000 mPa·s (cp), making it suitable for highly viscous fluids.
Q5: What industries benefit from the KNKE Vertical Screw Pump?
Industries such as food processing, pharmaceuticals, chemicals, and wastewater treatment benefit from the KNKE Vertical Screw Pump, especially when transporting high-viscosity liquids or slurries.