These pumps, using no electrical components are useful if you have to sample in an intrinsically safe way. Stainless steel foot valves are re-usable as they can be cleaned in a dishwasher making them more cost effective than plastic valves which cannot be effectively cleaned, so could cause sample contamination if re-used.
Suitable for environmental analysis in groundwater wells with diameters from 9mm to 22mm
A simple and inexpensive groundwater research pump for well development and purging
Low risk of cross contamination as sample is not in contact with air
Stainless steel valve can be easily decontaminated
Easy to install
Can be used in wells with shaft type covers as well as from street type well covers