The screw pump is a key component of the circulation system and is used for:
Supplying drilling fluid to fine cleaning equipment (e.g., sand separators, mud cleaners, centrifuges);
Pumping fluids of varying density and viscosity;
Delivering polymer or chemical solutions in drilling fluid preparation systems;
Transporting liquids with high solid content.
Thanks to its progressive cavity design, the screw pump ensures smooth, continuous fluid movement, which is especially important when working with fluids sensitive to pressure fluctuations.
Design Features of the KOSUN Screw Pump
The KOSUN screw pump consists of two main components — the rotor and the stator.
The rotor is made from high-strength alloy steel with a precisely engineered screw geometry.
The stator is made from elastomer with enhanced resistance to abrasive wear and chemical exposure.
This design provides:
Minimal pressure fluctuations;
Low noise and vibration levels;
Stable, pulsation-free flow;
Long service life even with abrasive fluids.
Additional KOSUN design elements include:
Reinforced seals to prevent leaks;
High-precision drive with overload protection;
A convenient maintenance system allowing quick rotor and stator replacement;
Adjustable operating frequency to meet specific process requirements.
Technical Advantages of the Screw Pump
High Wear Resistance: Rotor and stator are made from materials resistant to mechanical damage from solid particles.
Wide Operating Range: The pump handles low- and high-viscosity fluids, including polymer solutions.
Energy Efficiency: Optimized design reduces drive load and energy consumption.
Versatility: Easily integrated into existing drilling fluid systems.
Reliability in Harsh Conditions: Stable operation under temperature fluctuations, high solid content, and continuous load.
Applications of Screw Pumps
KOSUN screw pumps are in demand across several sectors:
**Oil & Gas Industry
Drilling fluid circulation systems
Cleaning stations
Supplying fluids to centrifuges and hydrocyclones
Transporting chemical reagents
**Environmental and Processing Complexes
Drilling sludge treatment
Drilling waste disposal systems
Pumping thick suspensions
**Industrial Processes
Chemical industry
Mineral processing
Water treatment
Construction material production (cement and polymer mixtures)
Advantages of Working with KOSUN
KOSUN is an international equipment manufacturer for the oil and gas industry with over three decades of market experience. The company provides:Full production cycle — from design to testing;
Modern production lines and strict quality control;
Engineering support and consulting;
Equipment customization to client requirements;
Reliable delivery timelines.
The KOSUN screw pump combines technological innovation, reliability, and long service life, making it highly sought-after by major oil and gas contractors as well as industrial enterprises.
