Operating Environment The BM series magnetically driven centrifugal pumps feature flow-through components primarily constructed from austenitic stainless steel. They are suitable for conveying liquids with a maximum pressure of 1.6 MPa, temperature not exceeding 120°C, viscosity not exceeding 30 mm²/s, and free of ferromagnetic particles or fibers. For systems requiring pressures exceeding 1.6MPa, temperatures above 120℃, or thermal insulation measures, our company offers customized solutions.

Design Features

Fully sealed, leak-free, pollution-free;

Computational Fluid Dynamics (CFD) designs hydraulic components with wide flow channels, high efficiency, excellent cavitation resistance, and low radial forces.

The flow-through components are manufactured using precision casting molds and a silica sol medium-temperature wax casting process, ensuring dimensional accuracy, clean and smooth flow channels, and high efficiency.

Process fluids self-cool lubricate transmission components, generally eliminating the need for additional piping systems and reducing engineering investment.

The motor employs high-performance, high-temperature-resistant rare-earth permanent magnet materials to ensure sufficient magnetic torque.

Magnetic Circuit Design and Industrial Applications for Large Magnetic Gaps in Certain Special Products;

The entire pump requires only 1-2 sealing rings, ensuring optimal safety;

The isolation sleeve design for eddy currents enhances pump efficiency.

Available with either direct motor coupling or coupling structure;

Direct motor coupling saves costs and space, offers higher transmission efficiency, and simplifies installation without requiring concentricity alignment. For units exceeding 37 kW, coupling connections are recommended to facilitate maintenance.

Multiple circulation methods, including self-circulation, forced circulation via auxiliary impellers, pressurized shield rings with auxiliary impellers, and external circulation, to accommodate the transportation of different working medium conditions.

An insulated jacket structure for cooling or heating may be added when required by operating conditions.

Optional standard Y and YB series three-phase motors, DC motors, and permanent magnet motors; Optimized rigid shaft system design with enhanced deflection index, reducing pump vibration and extending the service life of shaft system wear parts;

Two mounting configurations are available: foot-mounted and center-mounted, selected based on the temperature of the medium. The standard type employs foot supports, while the high-temperature type utilizes center supports.

Flange standards offer multiple options including ANSI, GB, HG, and others;

Oil-Bearing Floating Balance Structure Design: The magnetic drive pump achieves complete axial force balance during operation, with thrust bearings subjected to axial thrust only during pump startup. Long-term operation results in virtually zero wear. Oil-system components utilize high-strength, highly corrosion-resistant materials. The dual-bearing alignment structure, combined with an advanced liquid-dynamic lubrication system, ensures reliable pump transmission and extended service life of shaft components.

Special lubrication and cooling design: Circulating wave flow removes heat generated by vortex charging from the isolation sleeve while lubricating the sliding bearings, ensuring safe pump operation; Rational structural design provides the circulation system with sufficient pressure and flow, guaranteeing stable pump performance;

Both the inner and outer magnetic rotors feature a fully sealed structure to prevent corrosion of the magnets and degradation of their properties and strength in corrosive environments.

The isolation sleeve possesses the capability for complete drainage of the medium (during pump shutdown for maintenance) and automatic venting (during pre-startup priming). It is typically manufactured from austenitic stainless steel, Hastelloy, or titanium alloys using advanced processes.

Modular component design ensures excellent interchangeability; the integrated assembly of components significantly reduces on-site maintenance work for users and lowers the skill requirements for operators.