Heavy-Duty Rotary Valve Airlock

NFPA-Upgradeable | Abrasion-Resistant | Rebuildable for Long-Term ROI

Precision Machine & Manufacturing’s Heavy-Duty Rotary Valve Airlock is built to outperform traditional cast iron airlocks in powdered and granular material handling applications. Designed for high-volume, high-abrasion environments, it delivers unmatched sealing performance, durability, and low maintenance functionality across demanding industries.

Engineered for Harsh Industrial Applications

  • Cement, fly ash, lime, and mineral powders

  • Plastic pellets, resins, pigments, and dry chemicals

  • Grain, DDGs, and feed mill byproducts

  • Upgradeable to NFPA-69 & 85 compliance if/when needed.

Contact PMM now to upgrade your material handling system with the industry’s toughest rotary valve airlock!

Key Features:

  • NFPA-Upgradeable: Configurable to meet NFPA 69 & 85 compliance if/when needed.

  • Abrasion-Resistant Steel Alloys: Surface hardness up to 60 Rockwell

  • Precision Rotor-to-Housing Fit: Tight tolerances reduces air leakage and increase efficiency.

  • Modular, Rebuildable Design: Fast maintenance and lower lifecycle costs

  • Outlasts Cast Iron Airlocks 3–5x: Proven durability in abrasive application

Industry Applications:

  • Cement & Aggregates: Clinker, limestone, kiln dust

  • Power Generation: Fly ash, bottom ash, pulverized fuels

  • Bulk Powder Processing: Soda ash, lime, calcium carbonate, pigments

  • Grain & Feed Mills: Corn, soy, DDGs, pelleted material

  • Plastics & Resins: Pellets, powder resins, and compounds