Rotary Valve Airlocks, Rotary Airlock Feeders for the Plastics & Chemicals Industries

Moving chemicals throughout a material handling system can be extremely challenging! The characteristics of these elements can rapidly degrade the integrity of the components in that system. In an industry where most manufacturers would shy away from challenges such as this, here at PMM we consider it a great privilege to develop a solution that will provide the necessary amount of throughput and one that is also robust enough to deliver day and day out!

NFPA Compliant- Ideal for Abrasive & Corrosive Materials

Extreme Duty Rotary Valve Airlock

An NFPA Compliant Rotary Valve Airlock manufactured specifically to efficiently and effectively handle granular and powdery substances, which have abrasive and/or corrosive characteristics.
High-Volume Powdery, Granular, Ash Materials

Double Slope Rotary Feeder Airlock

A durable high-volume rotary airlock feeder manufactured specifically to handle massive amounts of low moisture granular and/or powdery materials types, are relatively uniform in size, and possess abrasive and/or corrosive characteristics.
Perfect for Eliminating Material Breakage

Side-Entry Rotary Valve Airlock

An offset or side-entry rotary valve airlock designed specifically to handle materials of relative uniform size while minimizing shearing and breakage of delicate, formed, molded, granular, or pelletized material types.
NFPA Compliant-Perfect for Low Moisture Materials

Self-Cleaning Rotary Valve Airlock

The Self-Cleaning Rotary Valve Airlock is the perfect metering airlock for the efficient handling of high-moisture materials that are subject to sticking, packing, and/or clogging the material handling system.
Wood, Biomass, Rubber, and Alternative Fuels

Rotary Airlock Feeder w/Knife

The Rotary Airlock Feeder w/Knife is both a metering device and an airlock. Equipped with a hardened tool steel knife so oversized materials are sheared to a common size before entering the delivery system. The Rotary Airlock Feeder w/Knife is the preferred choice within industrial manufacturing industries than handle wood, biomass materials, plastic, rubber, and various alternative fuels.
When a Superior Auger is Required!

Extreme Duty Screw Conveyors

No need to settle for an “off-the-shelf” Screw Conveyor when an upgrade is needed! Designed to meet the unique needs of the application and manufactured by hand to ensure the highest possible quality, PMMs screw conveyors are superior in every way to “off-the-shelf” augers.

Rotary Valve Airlocks

  • Keep critical material handling components moving! Every Rotary Valve Airlock is manufactured with the most durable U.S. sourced materials, and precisely engineered to maximize throughput. Maintenance engineers can spend their time developing efficiencies and not maintaining airlocks.
  • PMM Rotary Valve Airlocks promote compliance with environmental regulations! All Rotary Valve Airlocks are manufactured to reduce material loss by minimizing dust creation, which is an important part of any dust collection system.
  • Keep material loss to a mininum! All Rotary Airlock Valves are manufactured with the tightest possible tolerances, which keeps material traveling in the intended direction and not back upstream, which is a common problem in cast-iron airlocks due to excessive wear.
  • Abrasion-Resistant Components! All Rotary Valve Airlocks are manufactured from a proprietary steel alloy that is through hardened to 500 Brinell and surface treated to 60 Rockwell. There is not a more durable rotary airlock in the material handling industry.
  • Feeding high moisture content materials into a dryer or blender? Eliminate sticking and clogging of hard-to-handle materials and maintain superior airlock functionality with PMM's Self-Cleaning Rotary Valve Airlock!
  • Single Source Supplier of all your rotary valve airlocks. Simplify spare and critical parts by utilizing PMM as your preferred supplier for material handling components.
  • Rebuildable! All PMM Rotary Valve Airlocks are rebuildable! This provides a greater ROI over the life of the product and significantly reduces CAPEX budgets and overall maintenance costs.