0.88″ diameter Bladder Pump

Manufacturer: Geotech
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Geotech’s pneumatic portable bladder pumps operate with a unique action, ideal for both gentle low-flow sampling and high flow rate purging.

Single turn release heads and quick change bladders have been incorporated for quick in the field bladder changes and easy decontamination. Custom hose barbs allow the pump to be suspended without the need for tubing clamps.

Key Features

  • Constructed of electro polished 316 stainless steel
  • For unsurpassed durability and truly representative samples
  • Single turn release housings
  • Quick change bladder configuration
  • Extra bladders are available in Teflon® and polyethylene
  • Bonded tubing in polyethylene and Teflon® lined polyethylene by the foot or by the roll
  • Compatible with the Geocontroller II logic unit

Pump Ends

  • 316 stainless steel

Bladder Material

  • Virgin PTFE

Outer Diameter

  • .88”

Length with Screen

  • 18 5/8"


  • 1.1 lbs


  • 74 mL

Minimum Well I.D.

  • 1”

Operating Pressure

  • Maximum: 100 PSI
  • Minimum: 5 PSI (ash-above static head)

Maximum Sampling Depth

  • 200'

Tubing Size

  • Air .17" ID x .25" OD
  • Discharge .17" ID x .25" OD

IP Rating

  • (NA) Submersible to 500 feet (152 m) of water column


  • 9000 ft. (2.75 km) above sea level

Operating Temperature

  • 32° to 212° F (0° to 100° C) ambient air or fluid temperature