Rotary airlock CA series

Overview
Kongskilde pneumatic rotary valves CAD and CAE provide a controlled feed of grain into pneumatic conveying systems. Suited for both pressure and suction conveying, these rotary valves act as airlocks for continuous discharge from cyclones or filter units and are specified for larger capacities.

How Kongskilde Rotary Valves Work
Motor-driven rotors fitted with polyurethane or rubber paddles rotate to meter material into the conveying line while maintaining system pressure differential. The valves therefore serve as airlocks, improving throughput compared with simple injectors and enabling stable operation for higher volumes.

Benefits

• Increased conveying capacity: Designed to handle larger volumes with continuous flow.
• Air loss prevention: Rubber paddles provide an effective seal to reduce air leakage.
• Low maintenance: Wear-resistant materials reduce service intervals.
• Clog minimization: Flexible paddles limit material build-up and blockage.

Downloads (available)
Brochures, user manuals and spare parts lists are available for CAD/CAE rotary valves, covering models CAD 20, CAD 30-G, CAD 40-G, CAD 50 and the corresponding CA/CAE variants. Documents include product brochures, installation and operating manuals, and spare parts catalogues.

Technical table (excerpt)
Technical specifications | Capacity t/hour (700 kg/m3) | Motor kW/hp | Weight kg | Connection Top/Bottom

caractéristiques / spécifications techniques

• CAD 20: Capacity 16 t/h (700 kg/m3); Motor 0.55/0.75 kW/hp; Weight 45 kg; Connection OK 200 / OK 160.
• CAD 30-G: Capacity 38 t/h (700 kg/m3); Motor 1.5/2.0 kW/hp; Weight 84 kg; Connection OK 200 / OK 160.
• CAD 40-G: Capacity 60 t/h (700 kg/m3); Motor 1.5/2.0 kW/hp; Weight 87 kg; Connection OK 200 / OK 160.
• CAE 20: Capacity 16 t/h (700 kg/m3); Motor 0.55/0.75 kW/hp; Weight 34 kg; Connection OK 200 / #200 / *OK 200 (optional accessories noted on site).
• CAE 30-G: Capacity 38 t/h (700 kg/m3); Motor 1.5/2.0 kW/hp; Weight 73 kg; Connection OK 200 / #250 / *OK 200 (optional accessories noted on site).
• CAE 40-G: Capacity 60 t/h (700 kg/m3); Motor 1.5/2.0 kW/hp; Weight 76 kg; Connection OK 200 / #250 / *OK 200 (optional accessories noted on site).
• CAD 50: Capacity 94 t/h (700 kg/m3); Motor 1.5/2.0 kW/hp; Weight 150 kg; Connection OK 375 / OK 160.