Rotary AirLock Valves

Rotary airlock valves are essential components in any efficient dust collection or pneumatic conveying system. At Atmax Filtration, we supply rugged, precision-machined rotary valves engineered for consistent material flow, pressure sealing, and dust containment in industrial applications.

Whether you need to manage fine powders, abrasive particles, or sticky materials, our rotary airlocks deliver smooth discharge with minimal air leakage, helping industries maintain cleaner operations and system performance.

What Is a Rotary Airlock Valve?

A rotary airlock valve is a mechanical device installed at the bottom of hoppers, silos, or baghouses. It transfers collected material from a high-pressure system to a low-pressure discharge point such as from a dust collector into a bin without disrupting the pressure balance.

By maintaining an airtight seal, it:

Prevents air or product backflow
Supports continuous dust discharge
Protects fans and filters from pressure loss
Helps systems comply with NFPA and OSHA regulations.

Rotary Airlock Valve Types & Options

Type	Description & Benefits	Applications
Drop-Through Valves	Most common style; material drops by gravity through valve	Baghouse hoppers, silos, dust bins
Blow-Through Valves	Material conveyed by airflow through side inlets	Pneumatic conveying, food and chemical systems
Heavy-Duty Cast Iron	Built for durability in tough environments	Cement, mining, recycling, wood dust
Stainless Steel Airlocks	Corrosion-resistant and food-safe	Pharma, food, dairy, cleanroom applications
High-Temperature Designs	Handles elevated temps with special seals and clearances	Boilers, foundries, kilns, incinerators
Sanitary/CIP Valves	Designed for hygienic material handling and clean-in-place	Food processing, nutraceuticals, cosmetics

Key Features Of Rotary Airlock Valves

Precision-Machined Rotor and Housing: Ensures tight sealing and minimal air loss
Optional Air Purge Seals & Bearings: Prevents dust from entering the drive system
Multiple Rotor Configurations: Open, closed, scalloped, or flexible-tip for different materials
Easy Maintenance Access: Quick-clean designs and inspection doors available
Various Drive Options: Chain drive, direct drive, or motorized options with gear reducers
Sizes Available: 6″, 8″, 10″, 12″, 14″, 16″, and custom on request

Industries We Serve

Cement & Building Materials
Food & Grain Processing
Plastics & Rubber Manufacturing
Chemical & Pharmaceutical Production
Metalworking & Foundries
Wood Dust Collection in Furniture

Why Choose Atmax Filtration?

Extensive knowledge of dust collection system integration
Authorized reseller of trusted industrial rotary valve brands
Large inventory for quick shipping and replacements
Custom solutions for abrasive, corrosive, or sanitary applications
Expert support from design through installation and maintenance.

Need to size a rotary valve for your system or replace an existing unit? Contact our experts for custom recommendations, specs, and lead times.

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Let’s Start Work Together

Please feel free to contact us. We will get back to you with 1-2 business days. Or just call us now.

Atmax Filtration provides high quality dust collectors and accessories and supplies in the entire New Jersey.

For more information talk to us on (816)-745-9994 or write at sales@atmaxfiltration.com

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