- Language:
- English
- Deutsch
Solutions for homogenizers
Homogenizers are used particularly in the food industry to improve the shelf life of products. Dynamic seals are the most important sealing element in these plunger pumps that are required to build up the pressure.
In principle, homogenizers are made up of a plunger pump to generate the pressure in the liquid and an adjustable expansion nozzle. The high pressure expansion disperses particles in the suspension, or drops in an emulsion, thus homogenizing them. In the food industry, homogenizers are used on a large scale to increase the shelf life of milk. Here, a piston pump is used to generate a high pressure of several 100 bar and the milk is squeezed through fine nozzles. While passing through the nozzle, the fat droplets are dispersed from approx. 20 µm to approx. 2 µm which makes the emulsion stable and stops the cream from rising.
For high pressure plunger pumps to work, dynamic seals are essential. Here, Freudenberg Process Seals primarily uses V-Seal Set packings. But the most popular static sealing elements in the food industry, such as O-rings and molded parts, are also used in homogenizers.