1A-MD-1/2 Mag Drive Pump

March Pumpís 1A-MD-1/2 centrifugal sealless magnetic drive submersible pumps ideal for chemical applications.
Unit 60HZ 50HZ
System US Metric US Metric
Max Flow 3 GPM 11.3 LPM 2.3 GPM 9 LPM
Max Head 4.6 FT 1.4 M 3.3 FT 1 M
Power .005 HP .003 KW .005 HP .003 KW
Electrical 115V 50/60HZ or 230V 50/60HZ
Submersible Yes

Inlet 1/2"OD
Outlet 1/2"OD
Wet End Polypropylene (Front and Rear Housing), Buna N (O-Ring), Nylon (Impeller), Carbon/Teflon (Thrust Washer), 316 Stainless Steel (Shaft), Ceramic Magnet
Uses Submersible or Open Air
When submerged, the following is also in contact with the solution Epoxy, Noryl, SJT Cord

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icon March 1A-MD-1/2 Curve

icon 1A-MD-1/2 Pump Manual


Housings: Polypropylene or Carbon Filled Kynar

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

Shaft: Ceramic or 316 Stainless Steel

Impeller: Nylon or Carbon Filled Kynar

Stainless Steel Base Available

Reference Information

icon Dimensional Drawing 1A-MD-1/2 115V

icon Dimensional Drawing 1A-MD-1/2 115V DWG (143 KB)

icon Dimensional Drawing 1A-MD-1/2 230V

icon Dimensional Drawing 1A-MD-1/2 230V DWG (136 KB)

March Pump's industrial 1A-MD-1/2 is an American submersible seal-less centrifugal magnetic drive pump. It is capable of generating a maximum flow of 3 gallons per minute at 0.25 feet, and its maximum head is 4.5 Feet (or around 2PSI).  The 1A-MD-1/2 pump may be used submerged or not submerged. The standard wet end (the materials that come into contact with the solution) is composed of Polypropylene, Buna N, Nylon, Carbon/Teflon, Stainless steel, and Ceramic Magnet.  When submerged, Epoxy, Noryl, and the SJT Cord are also in contact with the solution. The inlet connection is 1/2 inch smooth, and the outlet is 1/2 inch smooth. The standard motor is a 1 Phase 115V or 230V 0.005 Horsepower 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 160 Celsius in open air, or 87 Fahrenheit or 71 Celsius if submerged. The March 1A-MD-1/2 centrifugal magnetic drive pump is capable of handling fresh water, salt water, and mild chemicals. To determine if the March 1A-MD-1/2 is suitable for your application, please contact March Pump.

Perfect for Applications Including 

Applications for the 1A-MD-1/2 Magnetic Drive Pump include chemical transfer, photographic processing equipment, refrigeration systems, and water displays.

Great for Chemicals Including

The 1A-MD-1/2 has pumped Acetone, Ammonium Chloride, Ammonium Chloride, Ammonium Hydroxide, Citric Acid, Ethylene Glycol, Magnesium Nitrate, Potassium Carbonate, Sodium Borate, Fresh Water, Salt Water, and many more chemicals.  The 1A-MD-1/2 may have been modified to handle these chemicals.  Please contact March Pump to review your application before using the 1A-MD-1/2 for any of the above listed chemicals.  
Chemical Resistance Chart 


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