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Pumps

Meeting your Groundwater Monitoring Needs

Peristaltic Pump (Advanced)

Advantages

The Peristaltic Pump - Advanced is an electronic peristaltic pump with advanced memory option. This reliable and universal electronic peristaltic pump can create a perfect vacuum; it is a versatile pump for sampling and purging in shallow wells. Peristaltic Pumps are used for low flow sampling of groundwater; this pump is perfect for the attachment of an in-line filter, for use with a flow-through cell and multi parameter probes. Available with optional auto shut off to assist compliance with the latest standards and directives when low flow sampling in monitoring wells.

Benefits:

  • Reliable and easy to use and maintain
  • Splash proof for use in the field (IP64)
  • Built in maintenance free battery that runs between 2 and 5 hours depending on conditions & charging
  • Can pump product and water even if it contains sediment
  • Optional auto shut-off for draw-down control
  • Cheap disposable tubing - no chance of cross contamination.

Specifications: Peristaltic Pump Advanced

Technical specifications
Weight: 13kgs and is easy to transport
Power supply: Internal battery
Battery: 2 - 5 Hours depending on conditions and charging
Head lift of water: 9.5m
Voltage: 12 volt
Product material: Stainless steel, teflon
Flow rate: 2.2 Litres per minute

Videos, Manuals & Downloads

Low flow sampling with a Peristaltic Pump Video

Basic Operations Video

Contact

Please email sales@vanwalt.com or click here to complete our enquiry form.

Stainless Steel Geosub Pump

Advantages

The SS Geosub Pump is a low voltage, stainless steel, submersible sampling and purging pump. It has a number of attributes which make it the ideal environmental groundwater sampling and purging tool. This pump is powered by DC voltage making it very safe to use. It is suitable for continuous operation and is tolerant of sediments, except clay. The pump is capable of impressive flow rates and will serve well as a combined sampling and purging pump to depths up to 45 metres. It is packed with convenient features like the dry-run power-save, easy decontamination, and field replaceable motor leads.

Benefits:

  • Low Voltage DC power - safer than high Voltage AC pumps
  • Dry run cut off can save energy
  • Pump is suitable for continuous operation
  • The pump is rated at 2000 hours of use in CLEAN water. In common with other impeller type pumps, sediments can cause damage and reduction in pump flow rate performance is an early indicator.
  • Pumps to depths of 45m in 2" diameter or larger wells
  • Step-less control for flow rates from a trickle to 13 litres per minute
  • Pump is stainless steel so can be de-contaminated
  • Up to 80 different well settings can be stored and programmed

Specifications: Stainless Steel Geosub Pump

Technical specifications
Pumps down to: 45m
Diameter: 42mm
Product material: Stainless steel
Tubing: 10 x 12 Polyethylene 75m roll
Flow rate: Up to 13 Litres per minute
Power Supply: 110V Generator

Videos, Manuals & Downloads

Geosub Basic Operation Video

Setting up & using the Geosub Video

Contact

Please email sales@vanwalt.com or click here to complete our enquiry form.

Submersible Pumps

These Gigant submersible impeller type pumps fit in a 2-inch well. Pumping capacities are up to 8 litres/minute and each pump has a head lift of 8 metres. Up to 3 booster pumps can be added to increase lift up to approximately 30 metres. These pumps require a 12V battery or can be run off a peristaltic pump.

Bladder Pumps & Geocontrol Pro

Advantages

A small, portable, very efficient package that includes a built-in high efficiency electrical compressor and optional auto shut off makes these bladder pumps ideal low flow groundwater sampling pumps capable of pumping from depths of up to 60 metres. The small electric compressor uses an external rechargeable lead acid battery. Air does not make contact with the liquid. These stainless steel pumps use a replaceable bladder either in Teflon or PE for easy cleaning and prevention of sample cross contamination and with diameters starting at 22mm to fit in a 1-inch well. Bladder Pumps are ideal groundwater sampling pumps.

Benefits:

  • Very small, highly efficient package
  • Controller with built in high efficiency electrical compressor
  • Small, lightweight and very portable
  • Easy to use
  • Dedicated systems available for best low flow results
  • Pumps to depths of 60m or more in 1" diameter or larger wells
  • Stainless steel pump is easy to clean and maintain
  • Intrinsically safe design - pump operates on compressed air
  • Disposable bladders and tubing mean no cross contamination
  • Accessories and consumables are readily available and very cost effective
  • Available in 42mm and 22mm sizes
  • Shorter pump is ideal if wells are not straight
  • Strong hose barbs - requires no safety cable
  • Can sample both product and water from contaminated wells
  • Can be run straight from a car cigarette lighter socket (recommended).

Specifications: Bladder Pump & Geocontrol Pro

Technical specifications
Max pressure: 100psi
Power supply: Hand held 12v battery or car cigarette lighter socket
Head lift of water: 60m
Product material: Stainless steel, teflon
Bladder material: HDPE
Diameter: 22mm or 42mm
Flow rate: Pumps up to 124ml per cycle (42mm Bladder pump)

Contact

Please email sales@vanwalt.com or click here to complete our enquiry form.

Foot Valves

Foot Valves

Footvalves come in a variety of sizes and can make very powerful pumping systems capable of sampling from great depths (manpower permitting!). These pumps do not use any electrical components so are useful when there is a necessity to sample in an intrinsically safe way. Stainless steel footvalves can be cleaned in a dishwasher making them more cost effective than plastic valves which cannot be effectively cleaned, therefore could be the cause of sample contamination if re-used.

Total Fluids Reclaimer

An air displacement pump which is perfect for developing and purging wells from 2-inch and larger. Theses pumps are capable of reaching depths of up to 75 metres and a compressor provides the air to lift water or other fluids with a viscosity up to gear-box oil. It will move sediment and suspended particles without damage up to a maximum of 11 litres per minute. The air will come in contact with the fluid so this pump is not suitable for sampling. This pump is a good alternative to the Grundfos MP1 for purging and well development.