Showing 17–32 of 75 results
-
GA5S Sample Tubing for GA5000
To be used with the GA5000 meter, please add to your rental of the GA5000 as this is not included in the rental package£28.35 - -
Geosorb Absorbent Socks – 38 mm (R86650003)
38mm Geosorb Sock for use with the Stainless steel screened cage assembly. Geosorb Kits are designed to recover hydrocarbons from wells.£138.60 - -
Geosorb Absorbent Socks – 76 mm
76mm Geosorb Sock for use with the Stainless steel screened cage assembly. Geosorb Kits are designed to recover hydrocarbons from wells.£178.50 - -
Geosorb Screened Assembly – 44 mm
Stainless steel screened cage assembly for use with a Geosorb Sock. The Geosorb Kit is designed to recover hydrocarbons from wells.£284.66 - -
Geosorb Screened Assembly – 93 mm
Stainless steel screened cage assembly for use with a Geosorb Sock. The Geosorb Kit is designed to recover hydrocarbons from wells.£333.11 - -
Geosub 2 Pump & Controller System
The Geosub 2 Pump & Controller system is a versatile, stainless steel, pumping solution. A DC pump for low flow sampling and high flow well purging. Robust and tested design with stainless steel components for sampling in the harshest well conditions. The Geosub 2 operates with the Geosub 2 Controller and a portable reel system or as a dedicated well system to 60 m depth. Requires tubing: 10 x 12 mm Polyethylene tubing (12.20.13) Please talk to us if your application is deeper than 60m. -
HP-SIL for vanwaltHEX-Pump
Silicone Tube – 3 x 1 metre lengths & Tubing Clip. 4.8 mm x 9.8 mm diameter. For use with vanwaltHEX-Pump.£19 - -
NivuFlow Gauging
Van Walt’s aim is to keep flow gauging simple. To do this we now offer a flow gauging service where we will travel to your site and carry out flow gauging in your stream or pipe on your behalf. Once our site visit is complete, we will issue a full report which will include:- Location photos
- A profile of the bed
- The level of each sampled segment
- The velocity profile over 10 sampled segments
- The flow rate
- The area, hydraulic radius and wetted perimeter
- PDF and .CSV results
-
Oil Interface Meter – 30 m
An Oil Interface Meter that uses a 16mm probe for the accurate measurement of hydrocarbons as thin as 1.52 mm in wells as small as 19mm in diameter and for detecting tank leakage. As the Meter is lowered down a well and contacts the product layer, a solid tone and green light alarm is activated on the reel. -
Package – YSI & Hex Peristaltic Pump
Van Walt’s most popular product combination for reliable, accurate results. An award winning YSI multiparameter meter combined with our Hex Peristaltic Pump.
Our Hex Pump is easy to operate using one size silicone tubing, designed for installations in wells as narrow as 10mm and optimised power consumption to cater for an average day’s sampling.
The YSI Professional Plus handheld multiparameter meter provides flexibility and accuracy for the measurement of a variety of combinations including temperature, conductivity, DO, pH, and ORP. Supplied with Buffer Solutions & Flow Cell.
-
Package – YSI & Peristaltic Pump (Advanced)
Van Walt's most popular product combination for reliable, accurate results. An award winning YSI multiparameter meter combined with our versatile electronic peristaltic pump with advanced memory option. This reliable and universal electronic peristaltic pump can create a perfect vacuum for sampling and purging in shallow wells. This package is perfect for low flow sampling of groundwater and is available with optional auto shut off to assist compliance with the latest standards and directives when low flow sampling in monitoring wells.
