Mildly Corrosive Chemical Transfer Pumps

1-MD Series Magnetic Drive Pump

Mildly Corrosive Chemical Transfer Pumps

1-MD Series Magnetic Drive Pump

The 1-MD Series is a non-submersible, in-line pump that handles most mildly corrosive fluids such as low concentrations of acids and alkalies in the pH range of 5 to 9 at fluid temperatures up to 150 ° F. The pump's patented magnetic drive design is designed to resist corrosion, chemical attack, and abrasive wear.

Features & Benefits

  • 1/70 hp open FC motor
  • Glass-filled polypropylene magnet housing
  • Glass-filled polypropylene volute
  • 1.1 specific gravity
  • Nitrile O-ring
  • Titanium thrust washers and shaft


Little Giant's 1-MD Series comes ready for immediate use and can easily be installed in any position. Featuring a 1/70 horsepower open FC motor style, the pump's housing is completely encapsulated in chemical-resistant plastic and fixed to the impeller. The front and rear thrust washers are utilized as wear bearings and do not revolve. This helps prevent wear on the shaft for added longevity.


Capacity 180 gph @ 1'
Shut Off 10.6' (3.2 m)
Max. Liquid Temp. 150 °F (66 °C)
Discharge 1/2" OD (12.7 mm)
Impeller Glass-filled polypropylene & Ceramagnet "A" (Barium Ferrite)
Electrical 115 V, 60 Hz, 0.8 A
230 V, 50/60 Hz, 0.7/0.6 A



115 or 230 V, 60 Hz

Head GPH (LPH)
1' 180 (681.4)
3' 165 (624.6)
6' 90 (340.7)
9' 20 (75.7)

Order Information

1-MD Series Chemical Transfer Pump

Item Model Volts Maximum Flow Rate - 60Hz Shut-Off Flow Rate At 1ft
589002 1-MD 115 VAC 3 gpm / 180 gph 10.6 ft 3 gpm / 180 gph

1-MD Series Chemical Transfer Pump - Pump Head Only

Item Model Description
589012 1-MD 1-MD MAgnetic Drive Pump, 230V 230V, 3 GPM

Support Materials


Title Type Size
Mag Drive Selection Tool PDF 3.28 MB


Title Type Size
Industrial Product Catalog PDF 12.23 MB


Title Type Size
Chemical Resistance Chart PDF 0.96 MB