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NEW DROP-IN REPLACEMENTS

MAXIMUM

ROTARY VALVE

PERFORMANCE

Combining over 30 Years of innovations in design, maintenance, & efficiency, A RAS (Rotary Airlock Solution) Valve is a maintenance & production dream come true.

Rotary Airlock
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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

Rotary Airlock
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ENGINEERING

ALWAYS FABRICATED, NEVER CAST,

even from stainless steels such as 304 & 316L.

Rotary Airlock

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 experts, 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.

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!

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.

CAREERS
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© 2026 by Rotary Airlock LLC   YOUR Airlock Solution. Guaranteed.

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