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  • Corrosion Packages | Rotary Airlock

    CORROSION PACKAGES Built to resist. Built to last. When corrosive materials attack your equipment, standard rotary valves may not deliver the durability your process demands. Rotary Airlock delivers solutions engineered to withstand harsh environments. Ability To Move To A Direct Drive Easily upgrade to direct drive for improved efficiency and reduced maintenance. Long Running Valves Built with durable materials and precision to deliver long-lasting performance. Valves That Are No Longer Availble We can rebuild or replace hard-to-find or discontinued valves. Bearings Changable In-Line Bearings changable in-line (based upon model). Rebuild Any Make & Model Extend the life of your equipment with our rebuild solution that restores performance. Inboard-to-Outboard Conversion for NFPA Compliance. Flexibility to reconfigure your valve for NFPA compliance and safety requirements. GET INTO THE DETAILS. Get to know the Corrosion Packages LEVEL 1 LEVEL 2 LEVEL 3 Housing: Mild Steel End Cap: Mild Steel Wearplate: Hard Chrome Liner: Mild Steel Level 1 CORROSION PACKA GE Ethanol | Resin | Soybean Bevels: Standard Shaft: 304L SS Housing ID: Hard Chrome Coating Vanes: 304L SS Level 1 C Rotor configuration available open or closed Housing: 304L SS End Cap: 304L SS Liner: 304L SS Level 2 CORROSION PACKA GE Food | Color | Polyethylene Bevels: Standard Shaft: 304L or 17-4 SS Vanes: 304L SS Rotor configuration available open or closed Level 2 C Housing: 316L SS End Cap: 316L SS Liner: 316L SS Level 3 CORROSION PACKA GE Chemical | Soybean | Plastics Bevels: Standard Shaft: 17-4 SS Vanes: 316L SS Rotor configuration available open or closed Level 3 C

  • Abrasive + Corrosive Packages | Rotary Airlock

    ABRASIVE + CORROSIVE PACKAGES Two attacks. One package. When you're dealing with both abrasion and corrosion , you require an approach that covers both concerns. . . Stands Up To Caustic & Abrasive Product Engineered to withstand highly caustic, corrosive, and abrasive materials without premature wear or failure. Hardened Wear Surfaces Wear-resistant housings and liners extend service life in high-abrasion, high-cycle applications. Canted Vane Rotor Closed Rotor Design Canted vane design reduces shear and impact wear as material passes through the valve. Closed rotor design protects the endcap and seal area from material exposure leading to extensive wear. Stainless Steel Construction Full stainless steel housing and rotor resist chemical attack, oxidation, and product buildup. Outboard Or Inboard Available in outboard or inboard bearing arrangements to fit your process and safety requirements. GET INTO THE DETAILS. Get to know the Abrasive + Corrosive Packages LEVEL 1 LEVEL 2 Housing: 304L SS End Cap: 304L SS Wearplate: Hard Chrome Liner: 304L SS Level 1 ABRASIVE + CORROSIVE PACKA GE Sand | Soybeans | Health & Nutrition Bevels: Standard Shaft: 304L or 17-4 SS Vanes: 304L SS Housing ID: Hard Chrome Coating Rotor: ENB Coating Level 1 A+C Housing: 304L SS End Cap: 304L SS Wearplate: Hard Chrome Liner: 304L SS Level 2 ABRASIVE + CORROSIVE PACKA GE Paper Pulp | Stone | Plastics Shaft: 304L or 17-4 SS Vanes: 304L SS Housing ID: SERCON Rotor: ENB Coating Hard Facing: Stellite #6 Level 2 A+C

  • Rotary Airlock | Quality Solutions and Customer Service

    Provider of Quality Airlock Solutions and Customer Service since 1995. Every valve, built for you. ROTARY AIRLOCK SOLUTION (RAS)™ Or Rebuild Your Current Valve New | Drop-In Replacement Make & Models Rotary Valve Pain Points What We Do Makes & Models CUSTOM SOLUTIONS WITHOUT LIMITS Rotary Airlock can manufacture or rebuild more than 1,900 different makes & models, with over 50,000+ package configurations available. New Drop-In Replacements Rebuilds ROTARY VALVE PAIN POINTS & OUR SOLUTIONS LEAKING SEALS & BEARING FAILURE RETHINKING REBUILDS? WEAR & TEAR OBSOLETE, DISCONTINUED & DEFUNCT MODELS LEAD TIME COMPLIANCE ISSUES Pain Points YOUR PREMIER PERFORMANCE PACKA GES Every industry faces unique challenges when it comes to maximizing valve lifespan. Rotary Airlock provides package solutions based on the characteristics of your product. Milling Abrasion Corrosion Product Adhesion (Sticky) Sanitary Sanitary (Dairy) W/ Rotor Detection System Abrasive + Corrosive Dust Collectors

  • Abrasion Packages | Rotary Airlock

    ABRASION PACKAGES Durability Delivered. GET INTO THE DETAILS. Get to know the Abrasion Packages Each level increase adds approximately 6 months to valve life *Lifecycle may vary by industry LEVEL 1 LEVEL 2 LEVEL 3 LEVEL 4 LEVEL 5 LEVEL 1 Level 1 ABRASION PACKA GE Grain | Milling | Paper Pulp Housing: Mild Steel Liner: Mild Steel End Cap: Mild Steel Vanes: Mild Steel Shaft: Mild Steel or 4140 Bevels: Standard Rotor configuration available open or closed Level 2 ABRASION PACKA GE Cement | Plastics | Aggregates Housing: Mild Steel Liner: Mild Steel End Cap: Mild Steel Shaft: 4140 Vanes: AR400 Rotor configuration available open or closed Housing ID: Hard Chrome Coating LEVEL 2 Level 3 ABRASION PACKA GE Food | Minerals | Cement Housing: Mild Steel Liner: Mild Steel Shaft: 4140 Vanes: AR500 Rotor configuration available open or closed Housing ID: Hard Chrome Coating End Cap: Mild Steel Wearplate: AR400 or AR500 LEVEL 3 Level 4 ABRASION PACKA GE Energy | Pigment | Grain Housing: Mild Steel Liner: AR400 Hard Facing: RA200 End Cap: Mild Steel Wearplate: AR400 Housing ID: SERCON Coating Rotor configuration only available closed LEVEL 4 Level 5 ABRASION PACKA GE Fly Ash | Kitty Litter | Grain Housing: Mild Steel Liner: Mild Steel Shaft: 4140 Vanes: Mild Steel End Cap: Mild Steel Wearplate: AR400 Housing ID: Ceramic Tiling Rotor configuration only available closed Hard Facing: RA200 LEVEL 5

  • Milling Package | Rotary Airlock

    MILLING PACKAGE Built for flexibility. Designed for your operation. Our Milling Package offers the features and flexibility you need to maximize uptime and adapt to your operation's evolving demands. . . Ability To Move To A Direct Drive Easily upgrade to direct drive for improved efficiency and reduced maintenance. Long Running Valves Built with durable materials and precision to deliver long-lasting performance. Valves That Are No Longer Availble We can rebuild or replace hard-to-find or discontinued valves. Bearings Changable In-Line Bearings changable in-line (based upon model). Rebuild Any Make & Model Extend the life of your equipment with our rebuild solution that restores performance. Inboard-to-Outboard Conversion for NFPA Compliance. Flexibility to reconfigure your valve for NFPA compliance and safety requirements. MILLING PACKAGE Milling | Flour Housing: Mild Steel End Cap: Mild Steel Liner: Mild Steel Shaft: Mild Steel (Single shaft or dual shaft available) Vanes: Mild Steel

  • About Us | Rotary Airlock

    Provider of Quality Airlock Solutions and Customer Service since 1995. ROTARY AIRLOCK ENGINEERING YOUR AIRLOCK NEEDS SINCE 1995 30 Years of Innovation, Expertise, and Reliable Solutions. For over 30 years, Rotary Airlock has been dedicated to providing high-quality rotary valve solutions for industries that depend on precision, reliability, and performance. What started as a small operation in a garage has grown into a trusted manufacturing partner capable of supporting customers worldwide. Through decades of experience, engineering expertise, and continuous innovation, we have the knowledge and capabilities needed to solve complex application challenges. Today, Rotary Airlock can manufacture and rebuild over 1,900 models with more than 50,000 configurations, providing customers with dependable solutions for nearly any process requirement. Whether you need a replacement valve, a rebuild, or a custom-engineered solution, our team has the experience and resources to deliver products designed to perform.

  • Direct Drives | Rotary Airlock

    Direct drive valves eliminate chains and sprockets, reducing hazard points, lowering maintenance needs, and improving safety and reliability. DIRECT DRIVE THE HIGHEST SAFETY STANDARD CLICK & DRAG HERE Your inventory & safety wingman. Eliminates or limits access to moving parts, lowering the possibilities of injury. ZERO need for additional sprockets or parts, maximizing your inventory budget. REQUEST A QUOTE To play, press and hold the enter key. To stop, release the enter key. Without extensive access to moving parts like chain drive valves have, Direct Drives eliminate or limit possible hazard points thus lowering the possibilities of injury during operation and maintenance. With a Direct Drive, there is NO NEED for additional sprockets, chains, repair parts. . .well, you get the point. There's ZERO need to diminish your maintenance and inventory budgets. With Direct Drives keeping the costs from job site accidents out of the equation, and inventory down using Direct Drives ultimately increases your profits. Highest Safety Lowers Inventory Increases Profits HOVER HERE! MAXIMUM SAFETY & SAVINGS Combining the minimal access to moving parts & least inventory needed to maintain optimal performance, a Direct Drive is the perfect power source for a safe and cost savings operation. ADJUSTABLE Direct Drives can also be equipped with an RPM adjustment, allowing you the ability to fluctuate your flow rate of material. This truly gives you the power to control and adjust your production line the way you need it. CONFIGURATION We offer a direct drive for ANY rotary valve. Regardless of OEM, Model, & Size we have a direct drive for you even if the original equipment manufacturer doesn't offer one. No matter your needs or space you're valve is operating in, we have a configuration and direct drive option specifically for you and your application.

  • Rebuild Your Valve | Rotary Airlock

    RETHINKING REBUILDS? Most rebuilds from other companies simply involve tipping the rotors and filling worn areas — a temporary fix that can actually shorten valve lifespan over time! REQUEST A QUOTE Rotary Airlock takes a different approach: WE REENGINEER . We restore valves ANY MAKE, ANY MODEL to like-new condition — EVEN BETTER THAN NEW — through precision rebuilding solutions designed to extend the overall life expectancy and performance of your system at a fraction of the price of a new one. WE HAVE A 3-STEP PROCESS . . . One: Machine the housing back to concentric and parallel specifications. Two: Manufacture new endcaps and a rotor to custom-fit the restored, like-new housing. Three: Replace all bearings and seals. The end result is a like-new — or even better-than-new — valve at rebuild pricing ! REQUEST A QUOTE

  • New Valve | Rotary Airlock

    Combining innovations in design, maintenance, & efficiency since 1995, An RAS Valve is a maintenance & production dream come true. NEW DROP-IN REPLACEMENTS MAX IMUM ROTARY VA LVE PERFORMANCE Combining over 30 Years of innovations in design, maintenance, & efficiency, A RAS ™ (Rotary Airlock Solution) Valve is a maintenance & production dream come true. THE DESIGN A perfect fit. The RAS ™ Valves are an drop-in replacement for your existing valve. SAME HEIGHT. SAME FLANGE PATTERN. This means you won't have to change your transitions. MADE IN THE U . S . A . FROM AMERICAN STEEL ENGINEERING ALWAYS FABRICATED, NEVER CAST, even from stainless steels such as 304 & 316L. SEALS & BEARINGS CHANGED IN-LINE, NEVER pull a valve again to change seals & bearings with Rotary's proprietary Rapid Access Endcap & MAP Seal that can be changed in-line in under 15 minutes per side. CUSTOM ROTOR CONFIGURATION, designed specifically for your product & application. You get the valve you NEED , not just what fits. Cast housings often have imperfections and are made from lower-quality steel, while FABRICATED ROTARY AIRLOCK SOLUTIONS (RAS) are made from high quality American Made steel. EVERY Make and Model We mean it. Rotary Airlock can offer a drop-in replacement, upgrade, and/or re-build services for ANY rotary valve. Even DIY. To date, we have the ability to manufacture or rebuild rotary valves from over 200 OEMs. Below are just a few.... Precision Machining As industry expert s , our team delivers their years of experience with precise & detailed work. From simple facing to complex fabrications, our team's accuracy is a major advantage of working with Rotary Airlock. Unmatched Engineering Unrivaled innovations , our team of engineers develop at every level of the fabrication process. From OEM improvements, material choices, and operation efficiency, our valves engineering sets them in a Master Class all their own. To play, press and hold the enter key. To stop, release the enter key. HOVER HERE! As a company, Rotary Airlock delivers each valve with extreme confidence backed by experience. Our highly knowledgeable team has spent over 30 years building reputable valves within every industry. We understand the quality you and your team expect & deserve. With Rotary Airlock, it'll be YOUR airlock solution. Guaranteed! REQUEST A QUOTE

  • Changeable In-Line Seals | Rotary Airlock

    Rotary Airlock’s MAP Seal System is engineered for industrial use, delivering USDA-compliant performance and dramatically extended seal life—from days to months. CLICK & DRAG HERE "[The MAP Seal] is working great and both maintenance and the environmental team are very pleased with the design and the functionality of the seal! Not to mention that the ops manager was really impressed with the speed that you could get it back to us. Thank you and your team so much for the help! " -Rebecca B., RA Customer MAP SEAL™ SYSTEM BY ROTARY AIRLOCK LLC Your maintenance dream come true. Change Seals In-Line No Pulling Valves No Pulling Endcaps USDA Compliant SEE MAP SEAL™ SIZES SEE HOW TO CHANGE To play, press and hold the enter key. To stop, release the enter key. Rotary Airloc k's MA P Seal ™ System is engineered for industrial manufacturing applications based on years of experience in the field. Not only is it USDA compliant, but its durability has allowed customers to go from four to seven days of seal life with packing, to 28+ months and still running strong with a MA P Seal ™. HOVER HERE! Change Seals In-Line USDA Compliant Convenient Kits Save Inventory In less than 15 minutes, you can change our proprietary MAP Seal ™ and LPF Bearing Systems In-Line . No need to pull an airlock means less downtime, less labor, and more product & profit for your bottom line. The MAP Seal™ System is the ONLY USDA compliant seal on the market for EVERY industry. Whether it's food processing, ethanol production, or even pharmaceuticals, you'll know you have a seal designed just for you. There's always inventory to keep on hand, so we made convenient replacement kits so your inventory, doesn't eat into your budget. With fast delivery and economical pricing, your MAP Seals ™ can be shipped quick or kept on hand without gouging your bottom line. THE ONLY SEAL YOU'LL EVER NEED Any airlock or feeder valve make & model can be easily converted from mechanical packing to a MAP Seal. Because of its engineering, we can provide this seal at the best economical price for a quick return on your investment. THE DESIGN The MAP Seal System is a split seal that is machined for In-Line maintenance and all internal parts meet USDA standards for indirect food contact. All seal parts are designed split to make installations and replacements on your rotary valves a maintenance dream come true. MADE IN THE U . S . A . ENGINEERING With seals, there's always inventory to keep on hand. We made it so that inventory, doesn't eat into your profits. Adjustable Clamp USDA Compliant Polymer Seal PTFE Polymer Carrier With fast delivery and economical pricing, your MAP seals can be shipped quickly or kept on hand without gouging your bottom line. It can be easily dis and re-assembled for install/replacement in under 15 minutes. Low-cost rebuild kits for fast & low-cost inventory requirements. The USDA grade design gives you reliable and continuous run-times! REPLACEMENT KITS MAP SEAL™ Replacement Kits MAP SEAL™ Designed to handle temps from -62 to 350° F the MAP Seal is perfect for any process or valve size. Discover the only seal you'll ever need by contacting a team member now. SIZES 2" 2.875" 4.5" Size is determined by the ID of the Seal. Sizes How To MAP SEAL™ All MAP Seals™ should be purged. Air that is 3 - 5 pounds of above line pressure is recommended. Air purging the seal creates a higher pressure inside the seal cavity which creates an air barrier that helps keep material inside the valve. With a MAP Seal™ l and air purge, you can forget about those costly nitrogen purge systems and those messy grease purges you have to manually purge over and over again, yuck. Contact us for more information on our Proprietary MAP Seal™ System and start saving your valves, your product, and your bottom line today! Purge Requirement SANITARY & FOOD GRADE USDA Compliant Rotary Airlock's MAP Seals™ is the ONLY USDA compliant seal on the market for rotary valves in EVERY industry. Whether its food processing, ethanol production, or even pharmaceuticals, you'll know you have a seal designed just for you.

  • Come work with us! Rotary Airlock is an Equal Opportunity Employer. Come Work With Us! No phone calls, please. Rotary Airlock is an Equal Opportunity Employer Upload Resume Max File Size 15MB Submit Thanks for submitting!

  • NFPA-69 | Rotary Airlock

    Rotary Airlock’s NFPA-compliant valves exceed safety standards with all-steel construction, precise clearances, and a rapid-access design for fast, in-line maintenance. RDS for 3A Dairy Applications ADVANCED ROTARY VALVE PROTECTION Continuous monitoring designed to: Protect dairy processing equipment Reduce downtime Prevent product contamination REQUEST A QUOTE The Rotary Airlock Rotor Detection System (RDS) provides real-time monitoring of critical rotary valve operating conditions. By tracking bearing temperature, vibration, rotor movement, and rotor-to-housing contact, the system helps identify issues before they become costly failures. PREMIERE FEATURES . . . Bearing Temp Monitoring Rotor Touch Monitoring Easy To Read Color Touchscreen Vibration Monitoring Sensor (IP67, IP68, IP69K) Rotor Movement Monitoring User Friendly Navigation Simple Reset Process All Outputs Sent To Your Current Control System Stainless Steel Enclosure (IP66, NEMA 4X, NEMA 12) BASIC OPERATION The Rotary Airlock RDS System will operate as a stand-alone system with a Color 7" Touchscreen monitor highlights potential concerns before they become catastrophic problems . When a fault occurs, the affected area will flash red on the touchscreen, while temperature warnings appear yellow for potential issues. A reset button clears faults once resolved. Bearing Temp Monitoring For Both Drive & Tail End Drive & Tail End Vibration Monitoring Rotor Movement Monitoring Rotor Touch Monitoring

A Truly American Made Company

Made in USA
ESTABLISHED IN 1995

We are the ONLY 1-off airlock manufacturer in the world. No matter the industry or application we have YOUR airlock solution. Guaranteed.

MADE IN AMERICA

1104 E 17th Street

Rock Falls, IL 61071

U.S.A.

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