Ancillary Spare Parts

Rotary Air Lock Valve

Name: Rotary Air Lock Valve
Brand: Maxtech Engineers

A rotary air lock valve is a precision rotary device used at the discharge of dust collectors (baghouses/cartridge collectors) and hoppers to feed bulk dust or granules from a high-pressure or high-vacuum environment into a lower-pressure area while maintaining an air seal. It also serves as a material metering device in pneumatic conveying systems.

Size Range150 mm to 500 mm (6″ to 20″) inlet diameter

Operating Temperature0°C to 150°C

Working Principle

A rotor with multiple vanes rotates within a close-tolerance housing. Dust collected in the hopper falls into the rotor pockets. As the rotor turns, pockets carry dust to the outlet where it discharges while the tight clearance prevents air from bypassing, maintaining the pressure differential required for efficient dust collection.

Technical Specifications 12 PARAMETERS

Type	Rotary Airlock / Rotary Feeder (heavy-duty, air-sealing design)
Application	Continuous discharge of collected dust from baghouse / cyclone while maintaining system airlock
Material of Construction	Body: MS / SS 304 / SS 316. Rotor: MS / SS with rubber or hard chrome coating
Rotor Design	6 to 8 vanes with tight clearance (0.2 to 0.5 mm). Options: Closed rotor / Open rotor
Size Range	150 mm to 500 mm (6″ to 20″) inlet diameter
Capacity	2 to 20 m³/hr depending on model and RPM
Drive System	Geared motor or chain drive. Motor: 0.5 HP to 3 HP (TEFC, IP55)
Operating Temperature	0°C to 150°C (higher temperature models available)
Pressure Rating	Up to ±500 mmWC for dust collection applications
Sealing	End plate sealing with gland packing / mechanical seals
Mounting	Flanged inlet and outlet connections
Usage Benefits	Maintains airlock, ensures continuous dust discharge. Minimizes air leakage and improves dust collector performance. Durable and low maintenance