plastic magnetic drive centrifugal pump which is directly coupled

Direct-connected plastic magnetic centrifugal pump is a kind of pump through the combination of direct-connected design and magnetic drive technology, which is mainly used for conveying highly corrosive liquids.

Description

The plastic magnetic drive centrifugal pump features overflow parts made from F2, F3, F46, PFA, and similar corrosion-resistant plastics. Its direct-coupled structure delivers compactness and efficiency, making it ideal for small chemical installations and applications requiring high safety and leakage prevention.

Performance

  • Flow rate: 1 to 30 m³/h
  • Head: 3 to 25 m
  • Maximum operating temperature: 80°C
  • Pressure: 1.0 MPa

Applications

  • Chemical industry: Hydrochloric acid, sulfuric acid, nitric acid, hydrofluoric acid, organic and inorganic mixed acids
  • Pharmaceutical industry: Leak-free and contamination-free liquid transport
  • Food & beverage: Hygienic liquid transfer processes
  • Environmental protection: Waste liquid and sewage handling
  • Electronic industry: Chemical solutions and ultrapure water transfer

Key Features & Advantages

  • Direct-coupled design: Motor and pump are directly connected, reducing complexity, improving efficiency, and minimizing maintenance requirements.
  • Seal-less magnetic drive: No mechanical seals, eliminating leakage risk and reducing wear and contamination.
  • High corrosion resistance: Plastic materials withstand strong acids, alkalis, and solvents, suitable for harsh chemical environments.
  • Compact and lightweight: Perfect for small installations; space-saving and easy to integrate.
  • High efficiency and energy saving: Fewer mechanical components mean reduced energy loss and lower operating costs.
  • Low maintenance: Seal-less and simplified structure lowers long-term maintenance costs.

Working Principle

  • Motor drives the external magnet to rotate, which magnetically couples to the internal rotor.
  • Magnetic force transmits power to the internal rotor, driving fluid flow.
  • Rotor generates suction and pressure, transferring fluid through the pump.
  • Seal-less design ensures no liquid contacts the motor, eliminating leakage risk.

Disadvantages

  • Limited flow and pressure compared to pumps with couplings; not suitable for very high-flow or high-pressure applications.
  • Higher initial cost due to magnetic drive and specialized plastics.
  • Not ideal for extreme pressure or temperature environments.