Cast Iron Airlocks


Imperial Systems Cast Iron Airlocks

An economical valve that’s suited for general use under dust collector, cyclones, and hoppers.  This airlock boasts 8 blade rotors, precision machining, and a rugged cast iron housing for efficient operation.

cast iron airlocks


  • Easily retrofits into existing spaces
  • NFPA-69 Tested and Certified
  • Cast Iron Construction
  • 8 Blade Rotors
  • Sizes: 6, 8,10 and 12-inch square


  • Beveled Rotor Tips
  • Motion Switch
  • TEXP Motor (For use in hazardous environments)
  • Flexible Rotor Tips

The Cast Iron Airlock has been designed with service in mind. No special tooling is required to replace wear parts, minimizing downtime.

Imperial Systems, Inc. is your dust collection & air pollution control expert; from designing and installing dust collection systems to manufacturing industry leading products, engineered for outstanding quality, safety and value.

Imperial Systems, Inc. Cast Iron Airlocks are engineered to outlast all other airlocks.The unit offers the tightest flexible seal, allowing larger particles to easily pass through the valve while maintaining the air seal. Utilizing an Imperial Systems, Inc. Cast Airlock on a dust collection system allows for constant operation without the need to shut
down and empty containers, minimizing employee exposure to dust and makes the system less susceptible to material back-up and filter damage.