PUMPS

Bladder Pumps

Designed for Groundwater Quality and Pollution Monitoring. 

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  • Overview
  • Features
  • Specifications
  • Applications
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Together with the USGS, Geotech designed the original bladder pump for groundwater quality and pollution monitoring. They can pump to the surface from as deep as 1000 (305m) feet with minimal agitation for the best representative samples.

  • True low flow capability for less agitation
  • Proprietary resin grade virgin PTFE bladder for long life
  • Constructed of #316 SS for durability
  • Dedicated or portable turnkey systems
  • Screened intake extends bladder life
  • Designed for wells as small as .75" (1.9cm)
  • Optional Drop-Tube assembly available for sampling from greater depths
  • Limited lifetime warranty on dedicated stainless steel systems
  • Compatible with the Geocontrol PRO and BP Controller units
  1.66, 36" 1.66, 18"  .850, 18"  .675, 18"
Pump Housing 316 SS 316 SS 316 SS 316 SS
Bladder Material Virgin PTFE Virgin PTFE Virgin PTFE Virgin PTFE
O.D. 1.66" (4.2 cm) 1.66" (4.2 cm) .850" (2.2 cm) .675" (1.7 cm)
Length w/Screen 38" (96.5 cm) 20" (51 cm) 18 5⁄8" (47.3 cm) 18 3⁄4" (47.6 cm)
Weight 5 lbs. (1.9 kg) 2.5 lbs. (0.93 kg) 1.1 lbs. (.5 kg) .83 lbs. (.4 kg)
Volume/Cycle 21.1 oz. (625 ml) 10.5 oz. (313 ml) .9 oz. (29 ml) .5 oz. (15 ml)
Min. Well I.D. 2" (50 mm) 2" (50 mm) 1.00" (2.5 mm) .75" (1.9 mm)
Operating Pressure 10-450 psi (.7-31 bar) 10-450 psi (.7-31 bar) 100 psi (6.9 bar) 100 psi (6.9 bar)
Min. Operating Pressure 5 psi (.34 bar) ash* 5 psi (.34 bar) ash* 5 psi (.3 bar) ash* 5 psi (.3 bar) ash*
Maximum Depth 1000' (305 m) 1000' (305 m) 200' (61 m) 200' (61 m)
Air Line (ID x OD) .17" x .25" (4 mm x 6 mm) .17" x .25" (4 mm x 6 mm) .17" x .25" (4 mm x 6 mm) .17" x .25" (4 mm x 6 mm)
Discharge Line (ID x OD) .25" x .375" (6 mm x 10 mm) .25" x .375" (6 mm x 10 mm) .25" x .375" (6 mm x 10 mm) .25" x .375" (6 mm x 10 mm)

*ash = above static head