Peristaltic pumps, with their excellent suction capacity, allow the user to configure systems of sampling and samples analysis in a simple and effective way. The peristaltic pump allows the self-priming of the liquid even vertically up to 4 m high, making it possible to move the system separately from the point of sample collection. The use of tubes of adequate quality and dimension enables the extraction of the product without any kind of pollution and presence of oxygen, thus ensuring the perfect non-contamination of the liquid.