Safe Discharge and Dosing of Bulk Goods, ATEX Approved Protection System

The Rotary Valve DSR combines the characteristics of a stirrer with those of a discharge lock. This makes it possible to discharge even very small powder and granules from a container or silo and to feed them directly into a pneumatic conveyor.

Due to the large inlet cross-section of the Rotary Valve DSR and the into the container projecting stirrer, bridging can be prevented in most cases. Depending on the type, the discharge capacity of the stirrer lock is up to 19,000 liters / h at 70% degree of filling.

The Rotary Valve DSR is directly installed on the outlet flange of the tank or silo. The drive is operated by a worm gear, wherein the dosing power can be continuously regulated when a frequency converter is used.

The shaft seal is optionally made of a stuffing box or a sealing ring with air purge.

The rotary valve has been certified for use as an explosion barrier. Derichs applies a QM system with the necessary qualifications for the production of such systems.

The Rotary Valve DSR is available in both steel and stainless steel.

For applications with high hygienic requirements, we have developed the rotary valve in a quick-dismountable version.