Magnetic Drive Pumps


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Product Overview

Magnetic drive centrifugal pump operation is similar to a standard centrifugal pump except the motor shaft seal is removed resulting in the elimination of leaks caused by shaft seal failure. For a complete magnetic drive overview, click Magnetic Drive Overview under Product Resources.


Flow Rates: Range to 35 gpm (132 lpm).

Max. Discharge Head: Range to 70 feet (21.3 m).

Max. Fluid Temperature: Up to 203°F (95°C). Consult GRI for higher fluid temperature needs.

Motors: All motors, except the 15651 series series motors which use sleeve bearings, have sealed electric motor grade ball bearings, are thermally protected, class B insulated, and continuous duty rated. Most pumps available with AC or DC motors.

For proper selection of the wetted materials of construction (pump body, impeller, adapter disc, O-ring, impeller bearing) refer to the Chemical Resistance Charts.


  • Corrosion resistant
  • Hydraulically efficient
  • No shaft seals
  • Low current draw and heat rise
  • Quiet operation
  • Flexible mounting and body discharge positions
  • NSF certified models available


Typical OEM Applications Include:

  • Film processors
  • Laser and x-ray cooling systems
  • Medical
  • Scientific
  • Laboratory
  • Solar thermal heating and cooling applications
  • Silver recovery equipment

Magnetic drive centrifugal pumps must be used where flooded suction conditions exist.


OEM Options


  • 115V, 50/60 Hz
  • 115V/230V, 50/60 Hz Capacitor start, drip-proof, ball bearing, thermally protected
  • 115V, 50/60Hz; 230, 50/60 Hz Explosion-proof (14520 Series only)
  • 115V, 50/60 Hz; 230V, 50/60 Hz Open, shaded pole
  • 115V, 50/60Hz; 230V, 50/60 Hz Open, shaded pole, impedance protected, ball bearing
  • 230V, 50/60 Hz
  • Brush and brushless DC available
  • Drip-proof, shaded pole, thermally protected
  • TEFC/PSC, thermally protected


  • NSF certified models available
  • 3/8″ MNPT

Thrust Bearings

  • Reinforced Thermoplastic Resin
  • Vectra®

O-Rings (Elastomers)

  • Flurosilicone (14110 & 14518/20 Series only)
  • Kel-F®
  • Nitrile
  • Neoprene
  • Silicone
  • Viton®/Fluoroelastomer

Exploded View


The chart below is just a general overview of the magnetic drive pumps offered. GRI specializes in the custom design and manufacturing of fluid pumps for the OEM market.

There are many variables that must be considered when specifying a magnetic drive pump for an OEM application. At first glance you may not find a pump that meets your exact requirements. GRI recommends that you contact our Technical Sales Staff to discuss your project so that the right pump can be specified. Many times we will customize an existing pump to meet your needs or design a new pump according to your system’s exact specifications.

Pump Series Maximum Flow Maximum Head Maximum System Pressure Maximum Fluid Temperature Motor Specs/Voltages
14110 11 GPM 16 FT 25 PSI 180°F (82°C) 115, 230, 50/60 Hz
14520 26 GPM 35 FT 75 PSI 203°F (95°C) 115, 230, 50/60 Hz
15651 3.75 GPM 13 FT 75 PSI 203°F (95°C) 115, 230, 50/60 Hz
17650 9 GPM 50 FT 75 PSI 160°F (71°C) 115, 230, 50/60 Hz
12, 24 DC Brushless
INTG3 7.79 GPM 54.38 FT 75 PSI 203°F (95°C) 9-24 DC Brushless
INTG7 19-20 GPM 93 FT 75 PSI 203°F (95°C) 12-24 DC Brushless