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Geotech Portable Bladder Pumps

Geotech's portable bladder pumps are designed with input from field technicians who actually do the sampling!

Single turn release head and quick change bladders allow for quick, in-the-field bladder changes and easy decontamination. Custom hose barbs allow the pump to be secured to tubing without the need for tubing clamps.

  • New 36" Pump
    Provides up to 30% greater flow
  • Constructed of 316 stainless steel
    For unsurpassed durability and truly representative samples
  • Portable turnkey systems available
    Everything you need to quickly and efficiently sample your site
  • Easy-to-open housings
    No special tools or training required to service the pump
  • Quick-change bladder configuration
    Bladders are easily changed without tools by sliding back the PTFE collars
  • Drop tube intake option
    Allows for deeper sampling
  • Extra bladders are readily available
    Available in PTFE and Polyethylene for all models
  • Bonded tubing
    In Polyethylene and FEP lined Polyethylene by the foot or by the roll
  • Compatible with the Geotech Geocontrol PRO & BP Controller units
  • CE rated for quality
    1.66" x 36" 1.66" x 18" .850" .675"
Pump Housing   316 SS 316 SS 316 SS 316 SS
Pump Ends   316 SS 316 SS 316 SS 316 SS
Bladder Material   Virgin PE (Optional PTFE) Virgin PE (Optional PTFE) Virgin PE (Optional PTFE) Virgin PE (Optional PTFE)
Outer Diameter   1.66" (40 mm) 1.66" (40 mm)
.850" (21.6 mm) .675" (17 mm)
Length w/Screen   40" (101.6 cm) 19" (48.2 cm) 18 5/8" (47.3 cm) 18 3/4" (47.6 cm)
Weight   5.0 lbs. (2.27 kg) 3.0 lbs. (1.36 kg) 1.1 lbs. (.5 kg) .83 lbs. (.376 kg)
Volume/Cycle   11 oz. (310 ml) 5 oz. (150 ml) 0.9 oz. (29 ml) 0.5 oz. (15 ml)
Min. Well I.D.   2" (5 cm) 2" (5 cm) 1" (2.5 cm) .75" (1.9 cm)
Max. Operating Pressure   100 psi (6.9 bar) 100 psi (6.9 bar) 100 psi (6.9 bar) 100 psi (6.9 bar)
Min. Operating Pressure   5 psi (.3 bar) ash* 5 psi (.3 bar) ash* 5 psi (.3 bar) ash* 5 psi (.3 bar) ash*
Max. Sampling Depth   200' (61 m) 200' (61 m) 200' (61 m) 200' (61 m)
Tubing Size          
Air ID x OD

Discharge ID x OD

  .17" x .25"
(4 mm x 6 mm)
.25" x .375"
(6 mm x 10 mm)
.17" x .25"
(4 mm x 6 mm)
.25" x .375"
(6 mm x 10 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)
.17" x .25"
(4 mm x 6 mm)

*ash = above static head

Portable Bladder Pump Drop Tube Assembly

Geotech's optional drop tube intake system allows you to easily relocate the bladder pump intake way beyond the depth limitations of the pump. As long as the pump remains submerged, you can effectively and economically low flow sample from the well's screened section.

  • Relocate pump intake to deeper well screen interval
  • Keeps pump at optimum depth to maximize performance
  • Drop tube length custom sized to each well
  • Easily adaptable in the field
  • Available for all three pump sizes
Portable Bladder Pump Drop Tube Assemblies
.675 .850 1.66

Portable Bladder Pump Reel

  • Caddy stores pump when not in use
  • Depth ranges to 175 feet (53 m)
  • Quick-connect fittings at pump and reel
Portable Bladder Pump Reel Portable Bladder Pump Reel System (shown with 1.66 Pump)

Bonded Tubing Sizes

Bonded Polyethylene x Polyethylene
[.170" x .25", .170 x .25"]
[.170" x .25", .25" x .375"]
[.25" x .375", .25" x .375"]
[.25" x .375", .375" x .50"]

Bonded FEP Lined Polyethylene x Polyethylene
[.170" x .25", .170 x .25"]
[.170" x .25", .25" x .375"]
[.25" x .375", .25" x .375"]

Bonded Tubing

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Geotech Portable Bladder Pumps
1.66" x 36" 1.66" x 18" .850" .675"