320-CP-MD Mag Drive Pump

March Pumpís 320-CP-MD centrifugal sealless magnetic drive pumps constructed from Polypropylene ideal for low flow high head applications.
Unit 60HZ 50HZ
System US Metric US Metric
Max Flow 3.3 GPM 12.5 LPM 2.9 GPM 11.3 LPM
Max Head 40 FT 12.2 M 28.8 FT 8.8 M
Power .083 HP .062 KW .083 HP .062 KW
Electrical 115V 50/60HZ or 230V 50/60HZ

Type Centrifugal Mag Drive
Inlet 1/2"MPT
Outlet 3/8"MPT
Wet End Polypropylene (Front and Rear Housing, Impeller), Viton (O-Ring), Ceramic (Shaft and Thurst Washer)
Motor Options Air Cooled or Blast Cooled
P/N 0320-0001-0300 (115V)
P/N 0320-0001-0800 (230V)
Note Product image may be different than actual product received.

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March 320-CP-MD Curve

March 320-CP-MD Pump Manual


O-Ring: Viton or Ethylene Propylene

Reference Information

Dimensional Drawing 320-CP-MD 115V

Dimensional Drawing 320-CP-MD 230V

March Pump 320-CP-MD 3D Drawing3D Drawings Available In DWG, IPT, and STEP Format.







March Pump's industrial 320-CP-MD is an American seal-less centrifugal magnetic drive pump ideal for applications such as chemical recirculation and chemical transfer. It is capable of generating a maximum flow of 3.3 gallons per minute at 1 feet, and its maximum head is 40 Feet (or around 17PSI). The standard wet end (the materials that come into contact with the solution) is composed of Polypropylene, Viton, and Ceramic. The inlet connection is 1/2 inch male pipe thread, and the outlet is 3/8 inch male pipe thread. The standard motor is a 1 Phase 115V or 230V 0.083 Horsepower fan cooled motor, which can be run on either 50 or 60 hertz (there are performance differences between the hertz options).  The maximum internal pressure the pump can tolerate is 50PSI, and the maximum liquid temperature is 190 Fahrenheit or 87 Celsius. The March 320-CP-MD centrifugal magnetic drive pump is capable of handling mildly or highly corrosive chemicals, acids, and solvents. To determine if the March 320-CP-MD is suitable for your application, please contact March Pump. 

Perfect for Applications Including 

The 320-CP-MD has the durability for continuous duty in applications requiring low flow and high head.  Typical applications include laser cooling, medical systems, filter systems, and various processing equipment in the electronics industry. 

Great for Chemicals Including

The 320-CP-MD has pumped Acetic Acid, Citric Acid, Ethylene Glycol, Formaldehyde, Hydrochloric Acid (Muriatic), Nitric Acid, Phosphoric Acid, Potassium Chloride, Potassium Hydroxide, Sodium Hydroxide (Caustic Soda), Sodium Chloride,  Sulfuric Acid, Fresh Water, Salt Water, DI Water, and many more chemicals.  The 320-CP-MD may have been modified to handle these chemicals.  Please contact March Pump to review your application before using the 320-CP-MD for any of the above listed chemicals. Chemical Resistance Chart         


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