MAGNES Series Sliding Vane Magnetic Drive Pumps

Blackmer® MAGNES Series pumps bring world-first set of functionality, reliability, and flexibility to critical processes in numerous markets. As the newest addition to Magnetic Drive Line of sliding vane pumps, MAGNES Series Pumps are positive displacement rotary vane pumps that use a magnetic drive without dynamic seals. This self-priming magnetic drive pump provides a leak-free pumping solution for difficult to seal liquids and any liquids that are too expensive, valuable, dangerous or hazardous to leak.

With 3- and 4-in models available in both ductile iron (MI3, MI4) and stainless-steel (MS3, MS4) construction, MAGNES Rotary Vane Pumps boast performance up to 520 gpm at 200 psi (1,968 L/min at 13.8 bar). MAGNES Sliding Vane Pumps provide magnetic drive pump capabilities, with the innate advantages of sliding vane technology. As a true self-priming pump, it will not need to be pre-flooded prior to start-up and is well suited for continuous duty operation, since the pump has no cumulative dry run limit. With this rotary vane magnetic drive pump design, the Blackmer MAGNES Series has combined the leak-free benefits of a magnetic drive pump, with the numerous advantages of sliding vane technology - such as self-priming, line-stripping, product recovery, dry-run capability, solids handling, thin/thick viscosity flexibility, easy maintenance and 70% to 90% pump efficiencies.

Features and Benefits
  • Magnetic drive pump design is inherently leak-free
  • Non-metallic, proprietary composite containment shell that provides the coupling strength of a thin wall metallic shell and the reliability of an eddy-current-free design
  • Low speed operation – pumps operate at 10%-20% speed range of comparable options, while achieving the same flow and pressure outputs as other pumping technologies
  • Solids handling ability – with large flow path design, and low internal flow velocity, particulates up to 1/8 inch (3 mm) can pass through without issue
  • Designed for entrained vapor handling, low to zero NPSH required
  • True self-priming pump, does not require filling before start-up
  • Features suction lift capabilities that meet or exceed 25 ft (7.6 m) wet vacuum and 16 ft (4.9 m) dry vacuum
  • Full curve performance across the entire system range, without sensitivity to a BEP curve
  • Entire pump assemblies available with motor, gearbox, and baseplate
  • Advantages of sliding vane technology:
    • Self-adjusts for wear to sustain flow capacity throughout pump life
    • Excellent at self-priming, eliminates expensive priming systems
    • Extended dry-run capability, eliminates nuisance current monitoring systems
    • Sliding vane design provides sustained performance and trouble-free operation
    • Easy maintenance: vanes can be easily replaced without removing the pump from the piping system
    • High suction lift and line-stripping capabilities
    • Low maintenance and low life-cycle costs, pumps are renewable and repairable
    • Solids handling, provided by large displacement and slow internal velocities
    • Thin to thick fluid viscosity flexibility, eliminates expensive heating systems
  • Loading & Unloading
  • Pressure Boosting Stations
  • Batch Blending
  • Forwarding
  • Processing
  • Railcar transfer
  • Tank to truck transfer
  • Transloading

Performance and Specifications

  • MI3 MS3
  • MI4 MS4
  • MI3 & MS3: 75 - 260 gpm (284 - 984 L/min)
  • MI4 & MS4: 200 - 520 gpm (757 - 1,968 L/min)
  • 200 psi (13.8 bar)
  • 660 ft @ 0.7 SG (201 m @ 0.7 SG)
  • 460 ft @ 1.0 SG (140 m @ 1.0 SG)
  • 355 ft @ 1.3 SG (108 m @ 1.3 SG)
  • 225 psi (15.5 bar)
  • 0.2 cP – 500 cP
  • -30°F to 240°F (-34°C to 115°C)
  • MI3 & MS3: <640 RPM
  • MI4 & MS4: <520 RPM
  • Ductile Iron (standard): Side Inlet | Top Outlet - 90-deg ported
  • Ductile Iron (optional): Side Inlet | Side Outlet - 180-deg inline ported
  • Stainless (standard): Side Inlet | Top Outlet - 90-deg ported
  • MI3: 180-deg inline ported Ductile Iron | 90-deg ported Cast Iron
  • MI4: Ductile Iron
  • MS3 & MS4: Stainless Steel
  • Ductile Iron (standard): Side Inlet | Top Outlet - 90-deg ported
  • Ductile Iron (optional): Side Inlet | Side Outlet - 180-deg inline ported
  • Stainless (standard): Side Inlet | Top Outlet - 90-deg ported
  • Duravane®
  • EC Laminate
  • Duravane®
  • EC Laminate
  • Hydrostatic Test
  • Performance Test
  • NPSH Test
  • Material (actual or typical)
  • Dimensional (pump only or unit)




Containment Shell



MI3 - Inline: Ductile Iron, ASTM A536 90-deg: Cast Iron, ASTM A48 . MI4 - Ductile Iron, ASTM A536

MI3 - Ductile Iron, ASTM A536

MI3 - PEEK Composite

MI3 - Neodymium Iron Boron

MI3 - Neodymium Iron Boron

MS3 & MS4 - 17-4 PH Stainless Steel

MS3 & MS4 - 17-4 17-4 PH Stainless Steel

MS3 & MS4 - PEEK Composite

MS3 & MS4 - Neodymium Iron Boron

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