Magnetic drive centrifugal pumps are seal-less centrifugal pumps that achieve power transmission through a magnetic coupling. Their core feature is the elimination of traditional mechanical seals, completely avoiding fluid leakage risks. They are suitable for conveying flammable, explosive, toxic, harmful, highly corrosive, or high-purity liquid media. Widely used in industries with strict leakage control requirements, such as chemical, pharmaceutical, semiconductor, environmental protection, and new energy sectors.
2.1 Basic Concept of Magnetic Coupling
The magnetic drive system consists of an inner magnetic rotor and an outer magnetic rotor. The motor drives the outer magnetic rotor to rotate, and under the action of the magnetic field, the inner magnetic rotor rotates synchronously to drive the impeller and complete liquid transportation. The entire process requires no shaft seal, completely isolating the pump cavity from the external environment.
Zero Leakage: The seal-less structure completely eliminates the risk of leakage, meeting strict environmental and safety regulations.
Easy Maintenance: No periodic replacement of mechanical seals is required, reducing downtime and maintenance costs.
Strong Corrosion Resistance: Wet-end components can be made of all-fluoroplastic materials (e.g., ETFE, PFA) or high-performance alloys, resistant to strong acids, alkalis, and other corrosive media.
Low Noise Operation: Magnetic drive has no mechanical contact, resulting in low vibration and noise generally below 75dB(A).
Wide Application Range: Flow range is typically 1-500 m³/h, with a head up to 120m, meeting most industrial process requirements.
Temperature Restriction: Limited by the Curie temperature of permanent magnet materials, the general continuous operation temperature does not exceed 350°C (special high-temperature models can reach 450°C).
Slightly Lower System Efficiency: Magnetic coupling has an energy loss of about 3-8%, with slightly lower energy efficiency than traditional centrifugal pumps.
Dry Running Prohibition: Sliding bearings rely on media lubrication, and dry running easily causes bearing damage.
Poor Adaptability to High-Viscosity Media: Suitable for media with viscosity below 200cP; special design is required for high-viscosity conditions.
Conveying corrosive media such as strong acids, strong alkalis, and organic solvents.
Used in key processes such as reactor feeding and distillation column circulation.
Used for conveying high-purity pharmaceutical intermediates.
Prevents cross-contamination and meets GMP certification standards.
Conveying viscous media such as syrup and fruit juice in the food and beverage industry.
Conveying cleaning fluids and etching solutions in electronics manufacturing.
Flow range: 0.1–100 m³/h;
Head: 10–150 meters;
Specific parameters are customized according to models and application scenarios.
Slightly lower efficiency than traditional pumps (approximately 80%–90%), but with low seal loss, the comprehensive energy consumption is good.
Particularly suitable for low-to-medium flow and medium-to-high head applications.
Operating temperature range: -20°C～+150°C;
Maximum working pressure: up to 1.6 MPa;
Material and structure affect its application limits.
If you are seeking a reliable, durable, and versatile fluoroplastic magnetic drive pump, Teffiko is undoubtedly a brand worth considering. With exceptional strength, Teffiko presents an industry-leading product. Upholding the principle of customer priority, Teffiko ensures superior product quality while optimizing cost structures to provide highly cost-effective solutions. Choose Teffiko fluoroplastic magnetic drive pumps—enjoy international first-class quality without the premium price.
