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Groundwater Sampling Pumps

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

How to use the Peristaltic Pump & Understanding the Head Lift of Water Video

Contact

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

MP1 Pump

MP1 Pump

Advantages

The MP1 Pump is an electric impeller driven pump that can be used for sampling and high flow purging of deep wells. The MP1 is the perfect groundwater sampling or aquifer test pump, controlled by a Variable Frequency Drive (VFD) with precise and smooth control of water flow from 0.1 litres per minute to 34 litres per minute – high flow rates for purging, low flow rates for sampling. The MP1 fits wells of 50 mm (2" diameter) and is capable of pumping to a depth of 90 metres. This pump can be damaged by (suspended) sediments or sand so is not ideal for well development in these conditions. The MP1 Pump requires 110V generator or mains supply.

Benefits:

  • High pumping capacity for purging, slow pumping for sampling
  • Pumps to up to 90m head of water in 50 mm (2 inch) diameter or larger wells
  • Easy to install
  • Step-less control for flow rates from 100ml to 34 litres per minute
  • Resistant to corrosive liquids
  • Pump is stainless steel and the cord is teflon coated so can be easily decontaminated
  • Can be used for sampling and purging deep wells
  • Individual elements available or as a complete set.

Specifications: MP1 Pump

Technical specifications
Dimensions (Pump & Motor): 11.3" L x 1.81" D (28.7cm L x 4.6cm D)
Net Weight (Pump & Motor) 5.5 lbs. (2.5 kg), excluding motor lead
Full Load Rating 0.5 HP/220V/3 PH/400 Hz/5.5A
Well size: Fits wells of 2 inch diameter
Power supply: 110V Generator
Maximum Current (SFA) 5.5 amps
Pumps down to: 90m
Minimum Ambient Fluid Temperature 32°F (0°C)
Maximum Ambient Fluid Temperature 95°F (35°C)
Product material: Stainless steel
Motor Lubricating Fluid Deionized (DI) Water
Flow rate: 34 Litres per minute
Tubing required: 12x16mm Polyethylene discharge tubing
Power cord: Teflon coated
Motor Protection Thermal overload
Current Overload Incorporated into MP 1 frequency convertor

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 Fluid Pump Reclaimer

Advantages

A positive air displacement pump for recovering hydrocarbons, leachate and condensate in total fluid applications so designed to withstand aggressive down-well and corrosive fluid conditions. An ideal pump for well development, purging and remediating.

Benefits:

  • Ideal for well development with flow rates up to 11 LPM
  • Pumps both product and water from contaminated wells
  • Pumps suspended solids in water
  • Pumps to depths of 60m or more in 2" diameter or larger wells
  • Easy to clean and maintain - pump has no moving parts
  • Manufactured from corrosive resistant materials: stainless steel and PTFE

Specifications: Total Fluid Pump Reclaimer

Specifications
Diameter Length Weight Volume/Cycle (l) Max Flow Rate (LPM)
42mm 62cm 2 kg 0.4l 7.6
42mm 92cm 2.9kg 0.8l 9
42mm 122cm 4 kg 1.5l 11.4

Contact

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

Groundwater Monitoring

A range of equipment to meet all your groundwater monitoring needs

That water is a precious commodity speaks for itself and is the reason for the establishment, in 2000, of the European Water Framework Directive (EWFD). This has a direct impact on all water sources and it is particularly interesting in our sector that there should be a presumption that groundwater should not be polluted at all.

When it comes to groundwater sampling pumps we've made it our business to know what's what. So whether you're remediating, sampling or purging; your head of water is 5 or 500 metres; you have a high, low or no flow rate and the volume of suspended sediments is unknown – we'll have the right groundwater sampling pump, to hire or buy, for you.

We have a groundwater sampling pump for every eventuality so whether you are sampling, developing or purging there are some hard and fast rules to adhere to when selecting a pump: know your head of water, the size of your well, flow rate, presence of suspended solids, potential for pump to run dry and whether you need to move product.

With more than 30 years in the business if you tell us the field conditions, restrictions and requirements we will be able to offer you the right pumping solution whether it's a peristaltic, impeller type, bladder or total fluid pump.

Regulatory directives such as the EWFD have had a huge impact on the development of better water sampling devices and water quality meters and standards are continually being improved by introductions of schemes such as MCERTS and new guidelines are continuously being published and an interesting read is: Ground-Water Sampling Guidelines for Superfund and RCRA Project Managers.

At Van Walt we spend much time, money and effort to keep up with developments. We do this through a continuous programme of staff training, regular dialogue with manufacturers for improved groundwater monitoring equipment which complies with current standards and we introduce ever increasingly stringent and auditable internal reports of equipment performance. The health and safety of our customers is paramount and we have chosen pumps which can run on low voltage DC, we supply post rental calibration certificates and are developing and offering tailored and product specific training to our customers.

In consequence of this ongoing development we have a range of pumps, groundwater monitoring quality meters, water level monitoring equipment and sampling devices available for purchase or rent which meet the up to date requirements of our customers involved in environmental research of ground and surface water. In many cases, we are making available accessories for remote monitoring by a selection of telemetry options which offer secure transmission to your desktop. Data security is paramount and the newer modems are ensuring that data loss is not only minimised but in some cases eliminated by the inclusion of duplicate data options.

Our groundwater monitoring equipment programme offers a wide choice so that the right tool can be chosen for the right job for uncompromised, consistent and repeatable results.

Equipment for Groundwater Monitoring - Click Here