AC-4A-MD Magnetically Coupled Pump

March Pumpís AC-4A-MD centrifugal sealless magnetic drive pumps ideal for industrial applications.
Unit System 60Hz 50Hz
Max Flow 14 GPM 50 LPM
Max Head 21.5 FT 4.7 M
Power .083 HP .062 KW
Electrical 115V 50/60HZ or 230V 50/60HZ

Type Centrifugal Mag Drive
Inlet 1"OD
Outlet 3/4"OD
Wet End Polypropylene (Front and Rear Housing, Impeller), Buna N (O-Ring), Ceramic (Shaft, Thrust Washers), Ceramic Magnet
Available with 750 Priming Chamber

Request Additional Product Info

icon March AC-4A-MD Curve

icon AC-4A-MD Pump Manual


O-Ring: Buna N, Viton, Teflon Encapsulated Viton, or Ethylene Propylene

Shaft: Ceramic or 316 Stainless Steel

Flanges Available

750 Priming Chamber Information

Reference Information

icon Dimensional Drawing AC-4A-MD 115V

icon Dimensional Drawing AC-4A-MD 115V DWG (102 KB)

icon Dimensional Drawing AC-4A-MD 230V

icon Dimensional Drawing AC-4A-MD 230V DWG (140 KB)

March Pump's industrial AC-4A-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 14 gallons per minute at 1 feet, and its maximum head is 21.5 Feet (or around 9PSI). The standard wet end (the materials that come into contact with the solution) is composed of Polypropylene, Buna N, Ceramic, and Ceramic Magnet. The inlet connection is 1 inch smooth, and the outlet is 0.75 inch smooth. The standard motor is a 1 Phase 115V or 230V 0.83 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 AC-4A-MD centrifugal magnetic drive pump is capable of handling mildly or highly corrosive chemicals, acids, and solvents. To determine if the March AC-4A-MD is suitable for your application, please contact March Pump. 

Perfect for Applications Including 

Applications for the AC-4A-MD Magnetic Drive Pump include electronic medical equipment, etching machines, photo processing equipment, hospital thermal blankets, and food heating cabinets. 

Great for Chemicals Including

The AC-4A-MD has pumped has pumped Acetic Acid, Acetone, Ammonium Sulfate, Citric Acid, Ethylene Glycol, Ferric Sulfate, Hydrogen Peroxide, Potassium Hydroxide, Sodium Chloride, Fresh Water, Salt Water, and many more chemicals.  The AC-4A-MD may have been modified to handle these chemicals.  Please contact March Pump to review your application before using the AC-4A-MD for any of the above listed chemicals.  Chemical Resistance Chart         


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