GeoPump 2 Peristaltic Pump

Manufacturer: Geotech
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The Geotech peristaltic pump (GeoPump 2) is designed for single and multi-stage pressure or vacuum pumping of liquids for field or laboratory use. Since the GeoPump can operate to a depth of 27 feet (8m) at sea level, it is ideally suited for sample removal from shallow wells and all surface water sources.

The GeoPump operates by mechanical peristalsis, therefore the sample only comes in contact with the tubing. This allows for sample integrity as well as easy cleaning and tubing replacement. Tubing can also be lowered to a specific depth without curling or floating on the surface of the water with the use of an optional stainless steel tubing weight.

Operating Range Suction

  • From 27' (8 m) at sea level

Principle of Operation

  • Mechanical peristalsis


  • 3.5" x 8" x 8" (9 x 20 x 20 cm)

Power Source

  • Any external
    • 12-18 V DC @ 70 watts
    • 90-260 V AC 47-65 Hz

Power Cord

  • 12V DC adapter cord
  • Standard AC power cord

Power Cord Length

  • AC cord 8' (2.4 m)
  • DC cord 15' (4.6 m)

Range of Speed

  • First pumping station 30 to 300 rpm
  • Second pumping station 60 to 600 rpm

Speed Control

  • Stepless variable speed control

Liquid Delivery Rate

  • 1.67 ml per revolution

Pumping Options

  • Pressure or vacuum (reversible flow)

Pump Head Rotor

  • Cold rolled steel