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  High Performance Bladder Pumps & Accessories


Waterra high performance bladder pumps for portable or dedicated use. These low flow sampling systems are capable of pumping to surface from as deep as 300 metres and in narrow diameter monitoring boreholes as small as 20mm ID! Custom hose barbs allow the pump to be secured to tubing without the need for tubing clamps.

•True Low Flow Capability

• Constructed of highest quality 316 stainless steel
For highest quality VOC sampling

• Economical PVC models available (42mm)
For trace metal / shallow sampling applciations

• Easy-to-open housings
No special tools or training required to service the pumps

• Maximum operating depth of 300 metres

• Drop tube intake option (42mm SS)
Allows for even deeper sampling

• Replaceable bladder cartridges
Available in Teflon® for all models

• Skip Bonded (Dual) tubing
In Polyethylene and Teflon® lined Polyethylene for easier tubing management

• Compatible with any Pneumatic Pump Control Unit

• CE rated to meet EU regulatory standards

Every bladder pump system requires the following additional components:
- Tubing (for air supply and sample discharge)
- Tubing Reels (for portable systems).
- A Control Unit (see our ProPlus and Logic control units)
- A Pressurised Air or Gas Supply (built-in or standalone compressors)

Choose Portable Bladder Pumps for pumps designed for shallow (sub 55m) portable applications

For further information on low flow sampling see:
- Groundwater Sampling Methodology
- TROLL 9500 range of water quality equipment for stability monitoring during low flow pumping.

For further help in specifying the best choice of bladder pumping equipment for your project, contact the technical experts at Waterra.

For more details:
Download as PDF



42mm SS High Performance Bladder Pumps and Accessories
The most commonly selected high performance bladder pump. Made from 316 Stainless Steel for durability. Produces the highest volume rate for a low flow pump from the greatest depths. For dedicated or portable applications.

An optional suspension bracket is available for safety cable. Choice of PE or PTFE (Teflon) replacement bladders. A drop tube assembly is available to extend the range of this pump. Choice of 2 pump lengths.

Length of Pump: 965 mm or 510 mm
Weight of Pump: 1.9 kg or 0.9 kg
Volume Pumped per Cycle: 625 ml or 313 ml
Max Pumping Rate: 4.7 l/min or 2.4 l/min
Max Depth of Use: 300 m

42mm SS Bladder Pumps
Code Description
GT81150100 Bladder Pump (HP) - SS 42mm x 0.9m with Screen  
GT81150107 Bladder Pump (HP) - SS 42mm x 0.5m with Screen  
GT51150100 BP (HP) - SS 42mm x 0.9m Bladder Cartridge  
GT51150114 BP (HP) - SS 42mm x 0.5m Bladder Cartridge  
GT91150005 BP (HP) - SS 42mm O-Ring Service Kit  
GT19051026 BP (HP) - SS Wrench / Spanner  
GT51150119 BP (HP) - SS 42mm Hanger for Safety Cable  


42mm SS High Performance Bladder Pump Tubing Connector Options
Alternative barbed connectors for different airline and discharge line tubing. Can be fitted at no cost if specified at the time of ordering.
Code Description
GT21150078 BP (HP) - Mod Hosebarb for Air Line, SS 1/4x1/8 MPT  
GT21150019 BP (HP) - Mod Hosebarb for Air Line, SS 0.17x1/8 MP  
GT11150106 BP (HP) - Mod Hosebarb for Discharge, SS 1/4x1/4 MPT  


42mm SS High Performance Bladder Pumps with Drop Tube Assembly
To extend the depth range of the 42mm SS high performance bladder pump, a simple drop tube assembly can be fitted to the base of the pump in place of the standard screen intake.

The complete pump with drop tube assembly is priced the same as a standard pump if specified at the time of purchase - or they can be purchased separately as an accessory.

Code Description
GT81150106 Bladder Pump (HP) - SS 42mm x 0.9m with Drop Tube  
GT81150109 Bladder Pump (HP) - SS 42mm x 0.5m with Drop Tube  
GT51150115 BP (HP) - SS 42mm Drop Tube Assembly  


42mm PVC High Performance Bladder Pumps
For great value with high pumping performance, choose a PVC bladder pump. Produces high volume rate for a low flow pump from depths up to 75m. For dedicated or portable applications in 50mm or larger diameter boreholes.

Choice of PE or PTFE (Teflon) replacement bladders. Choice of 2 pump lengths.

Length of Pump: 914 mm or 559 mm
Weight of Pump: 1.3 kg or 0.7 kg
Volume Pumped per Cycle: 408 ml or 204 ml
Max Pumping Rate: 3.7 l/min or 2.0 l/min
Max Depth of Use: 75 m

42mm PVC Bladder Pumps
Code Description
GT81150103 Bladder Pump(HP) - PVC 42mm x 0.9m  
GT81150102 Bladder Pump (HP) - PVC 42mm x 0.5m  
GT51150107 BP (HP) - PVC 42mm x 0.9m Bladder Cartridge  
GT51150106 BP (HP) - PVC 42mm x 0.5m Bladder Cartridge  
GT91150006 BP (HP) - PVC 42mm O-Ring Service Kit  
GT11150134 BP (HP) - PVC 42mm Hosebarb (1/4 inch)  


42mm PVC High Performance Bladder Pump Parts

Code Description
GT17200281 BP (HP) PVC80 - Nipple 0.125 x 3 ins / Air Line  
GT17200282 BP (HP) PVC - Compression PE 1/4 x 1/8 FPT / Air Line  
GT17500115 BP (HP) PVC - Ball PVC 3/8 inch / Top  


22mm SS High Performance Bladder Pumps and Accessories
For use in narrow boreholes 25mm and larger in diameter. Made from 316 Stainless Steel for durability. An excellent low flow pump for dedicated or portable applications.

Choice of PE or PTFE (Teflon) replacement bladders.

Length of Pump: 635 mm
Weight of Pump: 0.6 kg
Volume pumped per cycle: 59 ml
Max Pumping Rate: 0.4 l/min
Max depth of use: 75 m

22mm SS Bladder Pumps
Code Description
GT81150101 Bladder Pump (HP) - SS 22mm x 0.6m with Screen  
GT51150103 BP (HP) - SS 22mm x 0.6m Bladder Cartridge  
GT91150007 BP (HP) - SS 22mm O-Ring Service Kit  
GT19051026 BP (HP) - SS Wrench / Spanner  


18mm SS High Performance Bladder Pumps and Accessories
For use in narrow boreholes 20mm and larger in diameter. Made from 316 Stainless Steel for durability. An excellent low flow pump for dedicated or portable applications.

Choice of PE or PTFE (Teflon) replacement bladders.

Length of Pump: 457 mm
Weight of Pump: 0.4 kg
Volume pumped per cycle: 38 ml
Max Pumping Rate: 0.2 l/min
Max depth of use: 75 m

18mm SS Bladder Pumps
Code Description
GT81150110 Bladder Pump (HP) - SS 18mm x 0.5m with Screen  
GT91150008 BP (HP) - SS 18mm O-Ring Service Kit  
GT19051026 BP (HP) - SS Wrench / Spanner  


Suspension & Safety Wire Line
Stainless Steel wire line or Kevlar cord for suspension and safety tethering of pump.
Code Description
S3001/RG1002 Stainless Steel Flat Rope Grip (For SC1002 cable)  
S3001/SC1002 Stainless Steel Support Cable (100m x 2.0mm - spooled)  
KC2-100 Kevlar Rope (100m x 2mm - spooled)  

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