To receive the weekly EBS newsletter
      Home            News          Advertising       Events         About us      Archive Issues     In-House Test Centres   
17.09.2018 Rotary valve can now handle fragile food materials

Coperion, Weingarten, Germany, in response to feedback from customers in the food and pet food industries, has modified the design of its ZVB rotary valve to ensure very gentle materials handling while maintaining strictest sanitary standards. Improvements include a lower overall weight while maintaining the same robust design, optimisation of the housing wall thicknesses, increased inlet cross-section, and especially a modified inlet geometry for fragile food materials such as pet food kibbles, roasted coffee and finished cereals.

This unique combination results in a much gentler handling and introduction of product to the rotary valve. The increased ‘anti-chopping’ inlet deflects the product into the rotating rotor chambers of the rotary valve and avoids the product being damaged by the metering vanes. Several tests with customers have shown a significant reduction in product degradation of fragile and sensitive materials, compared to basic rotary valves with standard inlet geometries. Furthermore, an improved overall capacity through the valve is achieved by the larger, optimised inlet cross-section.

Ideal applications include positioning the rotary valve to meter and load finished product into bulk bags, or for filling of finished product packaging lines. All automated transfer of product is then performed without degradation or ‘chopping’ of the finished product or ingredient.

In addition to the modifications outlined above, the Coperion ZVB rotary valves are also available in Coperion’s innovative design for wet cleaning (e.g. clean in place).

Coperion’s stainless steel ZVB rotary valve is now capable of gentle handling of the most fragile food and pet food materials


« Back