Dependent on the design, rotary valves and tangential valves are suitable for the continuous metering of different types of dust, fine grains, chips or coarse grains. The bulk material must be dry with good conveying and flow properties. Because the rotor is precision-finished to the correct tolerances, Schäffer rotary valves have the maximum possible sealing integrity as well as end plates that are adjustable from the outside. Gap leakage caused by running clearance and wear, however, is possible. Special designs: max. 800°C, pressure-shock-proof and/or flame-propagation-proof.
rotary valve (square): 150 x 150 bis 1200 x 700
rotary valve (round): DN 150 bis DN 600
tangential valve (square): 200 x 200 bis 700 x 700
The Schaeffer Verfahrenstechnik GmbH company, located north of Augsburg in Germany, is specialized in the production of individual components and units for the field of bulk material process technology. Our special forté is the handling of those kinds of dry bulk materials encountered in all walks of daily life such as gravel, sand, cement, ash, lime, sugar, salt, and plastic granules, etc. Reputable companies both in Germany and abroad employ our units in all branches of industry, e.g. in the building materials, chemistry, and foodstuffs industries, as well as in power plant technology, environmental technology and medicine.
Our strength is not only in consultancy, i.e. working together with our customers to find the best solution for their individual requirements, but also in a constant quality control (we are certified acc. to ISO 9001:2008 and ATEX-directive 94/9/EC, Annex IV) the design and manufacture of the units we deliver. We offer our customers a complete and modular system for the solution of just about every bulk material handling problem, in particular when it comes to activation, sealing, metering and conveying. And maximum flexibility and high quality standards are a matter of course at Schaeffer.