Rotary valves are widely used in bulk solids handling, serving as discharge devices, airlocks in pneumatic conveying systems, and safety components for isolating pressure differentials or preventing flame and explosion propagation. UK-based Gericke RotaVal, part of the Gericke Group, specialises in the design and manufacture of rotary valves.

In addition to standard metering and airlock duties – such as feeding conveying lines or filling FIBCs – Gericke RotaVal develops large rotary valves for applications requiring high throughputs or the handling of oversized and abrasive materials. These units are particularly relevant in petrochemical and chemical industries, where bulk materials such as catalysts, resins, polymers, or additives must be transferred under strict process control.

In petrochemical environments, rotary valves play a key role in maintaining pressure differentials between process zones including reactors, storage silos, conveying lines, and dust collection systems. This helps prevent gas leakage, reduce contamination risks, and support plant safety. Robust construction allows the valves to withstand corrosive or abrasive conditions, while precise operation ensures accurate dosing and consistent feed rates.

For demanding duties, Gericke RotaVal offers designs incorporating explosion-proof drives, high-temperature seals, wear-resistant internal coatings, and easy-clean access to facilitate maintenance. The company manufactures rotary valves in sizes up to 600 by 1200 mm, often with specialised surface treatments. These features enable reliable performance in challenging petrochemical processes, helping operators meet operational efficiency targets as well as environmental and safety requirements.

Gericke Rotary Valve in Chemical Application

Gericke RotaVal up to 600 by 1200 mm