Eccentric Screw Pumps for Dosing & Metering Applications
Eccentric screw pumps, often referred as progressive cavity pumps, are an excellent choice for precise metering applications, particularly in water treatment processes such as flocculation.
These pumps use a helical rotor and stator to create a series of cavities that progressively move fluid with high accuracy and minimal pulsation.
Key features of eccentric screw pumps include their ability to handle highly viscous and shear-sensitive fluids, ensuring gentle and consistent metering. Their robust design provides excellent resistance to abrasion and chemical attack, making them suitable for dosing chemicals and additives in water treatment.
Discover here how does an eccentric screw pump works.
Typical Range of Application
- Flow Rate Range
Typically from less than a litre per hour (L/h) up to 3,000 litres per hour (L/h), with some models capable of handling even higher flow rates. - Pressure Range
Generally up to 6 to 12 bar.
High-performance models can handle pressures up to 48 bar, although with much longer pump units. - Accuracy
Typically within ±1% to ±2% but can vary depending on the wear status of the stator and rotor.
Benefits of Progressive Cavity Pumps for Metering and Dosing
- Precision
High dosing accuracy and repeatability, essential for maintaining optimum process conditions. - Waterproof
The pump is waterproof, meaning that when stopped, it will now allow the flow to run backward, avoiding the need for a valve (unlike centrifugal pumps that are open when stopped). - Versatility
Capable of handling a wide range of fluid viscosities and compositions,
including slurries and suspensions. - Low Shear
Gentle pumping action preserves the integrity of shear-sensitive additives and chemicals. - Reliability
Durable construction ensures long life with minimal maintenance, reducing downtime
and operating costs. - Self-Priming
Self-priming capability increases operational flexibility and simplifies system design.
In flocculation applications, progressive cavity pumps provide accurate and consistent flocculant metering, improving water clarity and treatment efficiency.
Their precise control and reliable performance make them essential for maintaining high standards of water quality management.
Discover here how does an eccentric screw pump works.
SPS Pumps
Your Expert Partner for Eccentric Screw and Dosing Pumps
At SPS Pumps, we specialise in providing high-quality eccentric screw pumps and spare parts for all major brands as well as a wide range of dosing pumps to meet the diverse needs of industrial customers.
Our very closed relationship with key suppliers ensure deep technical knowledge to ensure the best possible solution.
Whether you’re dealing with highly viscous fluids, precise dosing requirements, or challenging operating conditions, we have the expertise to guide you through the decision-making process.
Trust SPS Pumps to deliver reliable and durable pumping solutions tailored to your specific needs.
Call us now at +32 2 657 23 53 or email us as info@sps-pumps.com
