Operating principle

Rotary valves, also known as rotary airlocks or rotary feeders, consist of a rotor equipped with several compartments (or pockets) rotating inside a cylindrical housing. The product fed into the valve from above is transported by the rotation of the pockets towards the outlet in a controlled manner (dosing). An effective seal, achieved by the narrow clearance between the stator and the rotor, ensures compartmentalization between the upstream and downstream processes.

For sticky products, a scraper rotating with the rotor cleans each pocket, preventing clogging and ensuring a clean transfer of the product.

Applications

Rotary valves are particularly suited for distributing bulk products in the following industries :

• Circular economy and recovery
• Minerals and ores
• Fertilizers, chemicals, fine chemicals
• Food and pharmaceuticals
• Metals and precious metals