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Stainless steel pumps in compliance with EC Regulation 1935/2004
Varisco has expanded its range of positive displacement internal gear pumps conforming to EC Regulation 1935/2004 with a wide selection of additional AISI 316 stainless-steel models.
What does the EC 1935/2004 regulation stand for?
EU Regulation 1935/2004 lays down the general principles for the safety of materials and items intended to come into contact with food within the European Union (EU).
This regulation determines the requirements to ensure that materials and items do not transfer harmful substances to food in quantities that could endanger human health, alter the composition of food or deteriorate the organoleptic properties of food.
Those pumps are intended to be used in the preliminary food processing phase while for the hygienic or sanitary production phase other certifications shall be required (i.e. EN 1672-2, EHEDG or 3A).
What are the specific features of internal gear pumps compliant with Regulation EC 1935/2004?
- Kolsterising® on rotor, idler gear, cover and shaft. This treatment does NOT alter the stainless effect of the components; Kolsterising® is not a surface coating (which could lead to contamination of the product due to the release of particles) but a hardening process achieved by changing the surface atomic structure.
- Pin, bushings, and mechanical seals faces made of tungsten carbide with CE 1935/2004 certificate; tungsten carbide is a very hard material, specially used to significantly reduce wear and to prevent any contamination of the pumped product
- Heating chambers on cover and seal holder: in order to check the temperature of the pumped fluid, this series of pumps has heating chambers on the cover and around the axial seal that can be supplied with water, steam or diathermic fluid.