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Rotary Airlock LLC | (815) 564-1712 | 301 W. 3rd Street, Ste L, Sterling, IL 61081 YOUR Airlock Solution. Guaranteed. The right tools for the job CLF BEARINGS DIRECT DRIVES MAP SEAL SYSTEM Change In-Line Locked Radially & Axially Shop now Change Seals In-Line USDA 3A Certified Shop now Available for ANY Make or Model Highest Safety & Maintenance Standard Shop now MAX IMUM ROTARY VA LVE PERFORMANCE Combining over 25 Years of innovations in design, maintenance, & efficiency, An RAS ™ Valve is a maintenance & production dream come true. THE DESIGN A perfect fit. The RAS ™ Valves are an EXACT drop-in replacement for your existing valve. NO new flange pattern, NO moving equipment! MADE IN THE U . S . A . FROM AMERICAN STEEL ENGINEERING ALWAYS fabricated, NEVER cast, even from stainless steels such as 304 & 316L. SEALS 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 CUSTOM ROTOR CONFIGURATION, designed specifically for your product & application. You get the valve you NEED , not just what fits. 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. 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 ones. With over 25 CNCs, Lathes, and other machinery, we have the ability to work on them all. 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. As a company, Rotary Airlock delivers each valve with extreme confidence backed by experience. Our highly knowledgeable team has spent over 25 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! ADDITIONAL MODELS HOVER HERE! RAS™ VALVES TOP MODELS

Rotary Airlock LLC | (815) 564-1712 | 301 W. 3rd Street, Ste L, Sterling, IL 61081 YOUR Airlock Solution. Guaranteed. NEED A PICK-UP? CONTACT US TODAY! COVID-19 STATEMENT Telephone Tel: 815-626-0388 Fax: 815-626-5366 Email Info@RotaryAirlock.com Message m.me/RotaryAirlock Opening Hours Mon - Fri: 7am - 3:30pm CST MADE IN AMERICA: 1104 E 17th Street, Rock Falls, IL 61071

Rotary Airlock LLC | (815) 564-1712 | 301 W. 3rd Street, Ste L, Sterling, IL 61081 YOUR Airlock Solution. Guaranteed. AB BASIC AB STANDARD AB MASTER AB MASTER PLUS+ CE MASTER AS STANDARD CR STANDARD CR MASTER CP STANDARD CP MASTER CP MASTER PLUS+ ET STANDARD ET MASTER SS STANDARD SA MASTER VI STANDARD VI SEMI-SANITARY 25 YEARS IN THE MAKING PACKAGES For 25+ years, Rotary Airlock has been rebuilding failed OEM valves and upgrading them from hands experience. The other OEMs don't offer the materials you need for your application because to them it isn't profitable. Rotary Airlock does business different. We do business the right way because we provide solutions and have developed packages for your industry SPECIFICALLY, so you can rest assured your valve will run the way you deserve right from the start with an RAS Valve or we can rebuild your current valve with all the upgrades you need for a fraction of the cost. Not sure what package is right for you? CLICK HERE AB BASIC CLASS For common/abrasive applications, whose current valves generally run for more than 3 Years. AB BASIC AB STANDARD AB STANDARD CLASS For abrasive applications, whose current valves generally run for 2-3 Years. AB MASTER CLASS For abrasive applications, whose current valves generally run for 1-2 Years. AB MASTER AB MASTER CLASS PLUS+ For abrasive applications, whose current valves generally run for 6-12 Months. AB MASTER PLUS+ CE MASTER CLASS For abrasive applications, whose current valves generally run for less than 6 Months. CE MASTER AS STANDARD CLASS For asphalt applications. AS STANDARD CR STANDARD CLASS For moderately corrosive applications, whose current product is generally 4-14pH. CR STANDARD CR MASTER CLASS For severely corrosive applications, whose current product is generally 0-4pH. CR MASTER CP STANDARD CLASS For chemical and/or plastics applications, whose current valves generally run for more than 1 Year. CP STANDARD CP MASTER CLASS For chemical and/or plastics applications, whose current valves generally run for 6-12 Months. CP MASTER CP MASTER CLASS PLUS+ For chemical and/or plastics applications, whose current valves generally run for less than 6 Months. CP MASTER PLUS+ ET STANDARD For ethanol applications, whose current valves generally run for more than 2 Years. ET STANDARD ET MASTER For ethanol applications, whose current valves generally run for less than 2 Years. ET MASTER SS STANDARD CLASS For semi-sanitary applications. SS STANDARD SA MASTER CLASS For sanitary and/or corrosive applications. SA MASTER VI STANDARD CLASS For non-sanitary viscous and/or sticky applications. VI STANDARD VI SEMI-SANITARY CLASS For semi-sanitary viscous and/or sticky applications. VI SEMI-SANITARY DON'T SEE YOUR OEM or SIZE? GIVE US A CALL, WE WORK ON THEM ALL! (815) 626-0388

Rotary Airlock LLC | (815) 564-1712 | 301 W. 3rd Street, Ste L, Sterling, IL 61081 YOUR Airlock Solution. Guaranteed. 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 SEE INDUSTRY IN-DEPTH POST 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.

Rotary Airlock LLC | (815) 564-1712 | 301 W. 3rd Street, Ste L, Sterling, IL 61081 YOUR Airlock Solution. Guaranteed. WHY DIRECT DRIVE? THE HIGHEST SAFETY STANDARD Chain driven valves carry open chain guards allowing hands, clothing, shoelaces, debris, etc to access moving chains, shafts, and sprockets. Those chains and sprockets require a lubricant too that must be applied from under the open chain guard, dangerously requiring hands and fingers close to moving parts at an unsafe & unstable angle. With unfinished, jagged, & sharp metal edges (at an exact point where hands/fingers are required to work no less) and a required mounting table which increases materials, and therefore the valves, costs and maintenance issues, chain driven valves hold immediate safety hazards and higher costs. Speaking of higher costs, they require you to store sprockets, chains, repair parts & tools, additional lubricants and more on hand. These all inflate and eat into your maintenance & inventory budget and ultimately, your bottom line. BREAK THE CHAIN! *see what we did there ;) Without extensive access to moving parts like chain driven valves have, Direct Drives eliminate possible hazard points and lowers the possibilities of injury during operation & maintenance. With a direct drive, there is ZERO need for additional sprockets, chains, repair parts, and...well, you get the point. There's no need to diminish your maintenance & inventory budget and keeps the costs from job site accidents out of the equation, ultimately, increasing your profits. CALL NOW! Click the image below to download the comparison .PDF now! WHY DIRECT DRIVE? Without extensive access to moving parts like chain driven valves have, Direct Drives eliminate possible hazard points and lowers the possibilities of injury during operation & maintenance. With a direct drive, there is ZERO need for additional sprockets, chains, repair parts, and...well, you get the point. There's no need to diminish your maintenance & inventory budget and keeps the costs from job site accidents out of the equation, ultimately, increasing your profits. HOW WE DO IT. We offer an exact drop-in replacement or we can convert your original OEM valve no matter the make & model. We gather some very specific information about your valve and depending on your aforementioned choice above determines just what work we do. Take a look at the slide-decks there to see the steps we take during each direct drive process. *or download the .PDF of those slides below DROP-IN VALVE Download .PDF CONVERT OEM Download .PDF WHO WE'VE HELPED With 25 years of experience, we've done quite a bit of work converting valves with numerous clients. So we thought we'd talk about one in particular who has been and continues to be at the forefront of safety, reliability, and profitability. Take a look at our Industry In-Depth post on Ajinomoto and their 'Hands-Off' campaign to save money and provide a safer experience for their teams. READ MORE

Rotary Airlock LLC | (815) 626-0388 | 301 W. 3rd Street, Ste L, Sterling, IL 61081 YOUR Airlock Solution. Guaranteed. RESOURCES Looking for specifications or more detailed information on one of our valves? Browse through our selection of videos, .PDFs, and more. IOM Manual DOWNLOAD Rotary Airlock, LLC I/O/M Manual (2021) DOWNLOAD Rotary Airlock, LLC Rotary Valve Parts & Terminology (2022) BROCHURES & WHITEPAPERS DOWNLOAD Rotary Airlock, LLC Company Brochure (2020) DOWNLOAD Rotary Airlock, LLC Asphalt Brochure (2020) DOWNLOAD Rotary Airlock, LLC Ethanol Brochure (2020) DOWNLOAD Rotary Airlock, LLC NFPA Whitepaper DOWNLOAD Rotary Airlock, LLC USDA Certification DOWNLOAD Rotary Airlock, LLC Line Card VIDEO GALLERY HOW-TO: WHAT'S THE DIFFERENCE: SAFETY: EXCLUSIVE: BLOG & SOCIAL Streamlined Maintenance and Efficiency at Norfolk Soybean Facility: A Success Story 2 min read NFPA, FIRE CODE, OSHA. OH MY! 3 min read . . .Especially Ethanol. 3 min read

Rotary Airlock LLC | (815) 564-1712 | 301 W. 3rd Street, Ste L, Sterling, IL 61081 YOUR Airlock Solution. Guaranteed. ROTARY AIRLOCK, PROVIDING A WAY OUT. Let us guess, you've got a line down again, and even though you have multiple production lines that all use 10" rotary valves, you can't swap one or use a spare from any other line because...they are different OEMs and they don't fit. Really? They're all the same size though right? Wrong. Each OEM may carry a 10" valve but guess what? They specifically make it a different height so no other valve can take its place so you HAVE to go back to the original OEM for replacements & spares. Running up your inventory and getting pressure from the brass to lower your spending. You would if you could, right? Rotary Airlock's Cross-Fit is the answer. Rotary Airlock is the only manufacturer who can take 3 different OEM models with the same bore size and engineer, and successfully produce a replacement valve that fits all 3 heights. With a Rotary Airlock Model and pan head-mounted flange adapters, we can customize your airlocks to fit all of your production lines without running up your inventory and providing the convenience of swapping valves in down lines in a matter of minutes, or hours instead of days or weeks. We even provide the drive and speed switch in case your lines run at different RPM so you can adjust your valve to operate specifically for you and your application. Break free of the stranglehold of the other OEMs and give us a call today at (815) 564-1729. With Rotary Airlock, it'll be YOUR airlock solution. Guaranteed. CALL NOW! ALL THIS INVENTORY JUST THIS Different valves, multiple bearings, additional packing sizes, that can't be swapped between OEMs, or... 1 Valve for Multiple OEMs | 1 Bearing Style | 1 Seal Solution CALL NOW!

Rotary Airlock LLC | (815) 564-1712 | 301 W. 3rd Street, Ste L, Sterling, IL 61081 YOUR Airlock Solution. Guaranteed. PACKAGES With the extraordinary team consisting of industry experts, engineers, control specialists, welders, and machinists we are able to diagnose, engineer, and execute a solution no matter the industry or application. We'll provide YOUR airlock solution. Guaranteed. FIND YOUR PACKAGE BY ANSWERING THE QUESTION BELOW What type of valve do you need? SANITARY SEMI-SANITARY NON-SANITARY YES NO Are you a part of the Chemical or Plastics Industry? YES NO How long does your valve run before going down? 1+ YEAR 6-12 MONTHS -6 MONTHS Do you produce ethanol ? YES NO How long does your valve currently run before going down? 2+ YEARS -2 YEARS What type of product are you operating through your valves? VISCOUS CORROSIVE ABRASIVE How corrosive is your product? MODERATELY (4+ pH) SEVERELY (-4 pH) Are you a part of the asphalt industry? YES NO 3+ YEARS 2-3 YEARS 1-2 YEARS 6-12 MONTHS -6 MONTHS Is your product Sticky, Viscous, or have trouble releasing? How long does your valve currently run before going down? Is Sticky? Chemical? Chemical how long? Ethanol? Ethanol how long? What type? Corrosive? Asphalt? How long?

Rotary Airlock LLC | (815) 564-1712 | 301 W. 3rd Street, Ste L, Sterling, IL 61081 YOUR Airlock Solution. Guaranteed. Kice Drop-In Replacement SDO-71 | Ethanol Outfitted with our ET Standard package, the SDO-71 handles the heavy corrosion and wear in Ethanol production with ease and strength. By replacing those product facing seals and giving you nothing short of the industry's Master Class outboard seal & flange bearings (where both can be changed IN-LINE in less than 15 minutes) puts your Ethanol valve truly into a Master Class all it's own. BUILD YOUR VALVE DOWNLOAD CUTSHEET SEE PHOTOS 304L Stainless Steel Housing, Endcaps, & Rotor, conquer corrosion no matter the application. A proprietary MAP Seal System means changing seals IN-LINE in less than 15 minutes. The industry's Safety Standard & NFPA-69 Compliant Direct Drive Features 304L Stainless Steel Housing, Shaft, End-Caps, & Rotors Proprietary Outboard MAP Seal System Piloted Flange Bearings Safety Standard Direct Drive High Temp & I-Alert Ready 1 2 3 Valves with this type of configuration should be in every Ethanol plant, everywhere. Zach B. - Illinois Want to Learn More about the SDO-120 Ethanol Valve? Get a quote online. QUOTE NOW

Rotary Airlock LLC | (815) 564-1712 | 301 W. 3rd Street, Ste L, Sterling, IL 61081 YOUR Airlock Solution. Guaranteed. New RAS™ Valve SBO-151 1314 4" (REPLACES WALINGA 1314-4) REQUEST A QUOTE DOWNLOAD CUTSHEET New RAS™ Valve SBO-151 1314 5" (REPLACES WALINGA 1314-5) REQUEST A QUOTE DOWNLOAD CUTSHEET Rebuilt Exchange Valve WALINGA 1314-4 REQUEST A QUOTE Rebuilt Exchange Valve WALINGA 1314-5 REQUEST A QUOTE DON'T SEE YOUR OEM or SIZE? GIVE US A CALL, WE WORK ON THEM ALL! (815) 626-0388

Rotary Airlock LLC | (815) 564-1712 | 301 W. 3rd Street, Ste L, Sterling, IL 61081 YOUR Airlock Solution. Guaranteed. THE ROTARY AIRLOCK DIFFERENCE FARMING & AG EXCHANGE PROGRAM Your fields and harvest won’t wait. Take advantage of Rotary Airlock’s Exchange Program and reduce your downtime. We have hundreds of manufactured airlocks available. We welcome you to drop off your worn core and pick up your new unit at our facility all in one transaction. If travel is an issue, we’ll have a new unit shipped. 25 Years of Farming Innovation. Precision Machining Unmatched Engineering Master Class Materials REQUEST A QUOTE WHAT IS AN RAS™ VALVE? As for your core, we’ll make the shipping arrangements to pick it up at no cost to you. You can still purchase an airlock Ready-To-Ship right off our shelves or pick one up at our facility. With Rotary Airlocks Exchange Program you're guaranteed to be up and running no matter your make or model. So purchase your exchange valve online today or give us a call at (815) 626-0388. HOW IT WORKS. . . We are here no matter how far you may be. If you want to make an in-person exchange you can call ahead and pull right up to our loading zone and our team will get your old valve unloaded and your new one set for your trip home. If you can't make it to our facility, no problem! We can ship your valve to you and we'll even take care of the details for picking up your old valve so you can focus on your business and leave the rest to us. JUST GIVE US A CALL... OUR TEAM MEMBER WILL GATHER SOME INFO FROM YOU... AND WE'LL SHIP YOUR VALVE TO YOU... THEN SIMPLY SWAP YOUR VALVES. WE'LL ARRANGE & PICK-UP YOUR OLD VALVE... WHEN WE RECIEVE IT, THAT'S IT! DON'T SEE YOUR OEM or SIZE? GIVE US A CALL, WE WORK ON THEM ALL! (815) 626-0388