Rotary Valve Airlocks for Plastics Manufacturing and Chemical Processing

Processing chemicals and manufacturing plastics requires extremely robust and highly functional Airlocks. This is why Precision Machine & Manufacturing designed the ultra-durable Rotary Valve Airlock and is one reason why its popularity has grown so rapidly over the past several years. Manufactured from a specialty formulated U.S. sourced abrasion-resistant steel alloy and precisely engineered to achieve the tightest possible rotor to housing clearances, PMM’s Rotary Valve Airlock is by far the industry’s most durable, longest-lasting, and top-performing Airlock by a wide margin.

PMM’s Rotary Valve Airlocks are 100% Made in the USA!

NFPA Compliant- Ideal for Abrasive & Corrosive Materials

Extreme Duty Rotary Valve Airlock

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NFPA Compliant and a best in class heavy duty rotary valve airlock due to its industry leading, ultra tight rotor to housing clearances and abrasion-resistant materials. This airlock is perfect for handling powdery or granule materials, which have abrasive and/or corrosive characteristics.
High-Volume Powdery, Granular, Ash Materials

Double Slope Rotary Feeder Airlock

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A durable high-volume, heavy duty rotary airlock feeder manufactured from abrasion resistant materials and designed to move 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

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An offset inlet enables this heavy-duty rotary airlock 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

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The self-cleaning heavy duty rotary valve airlock is the perfect metering airlock for the efficient handling of high-moisture materials such as lignite coal that are subject to sticking, packing, and/or clogging the material handling system.
Wood, Biomass, Rubber, and Alternative Fuels

Rotary Airlock Feeder w/Knife

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A combined metering device and a heavy-duty airlock in one. Equipped with a hardened steel knife so oversized materials are reduced prior to entering the delivery system. This Rotary Airlock Feeder is the preferred choice when handling alternative fuels.
When a Superior Auger is Required!

Extreme Duty Screw Conveyors

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Designed to meet the unique needs of the application and manufactured by hand to ensure the highest possible quality, PMMs heavy-duty screw conveyors are superior in every way to “off-the-shelf” augers.
PLASTICS &
CHEMICALS INDUSTRY

Rotary Valve
Airlocks

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  • 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.