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Hey material, meet our valves.

With quality CNC-machining, NFPA compliance features and custom configurations for every application, our rotary airlock valves are the perfect match for your material processing needs.

See our valves
Thumbnail: See the Multi-Port Valve at work in 3D
Featured video See the Multi-Port Valve at work in 3D
CI valves with ruler lines.
Rotary Valve Sizing Tool Size your valve in 3 steps

Customizable for maximum process efficiency

Multi-Port Valve

Multi-Port Valve

The first ever Multi-Port for high volume applications

A transformation of trough-style feeders, the Multi-Port rotary valve provides high capacity in a compact design with separated airlock compartments. You won't find another one like it on the market.

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Blogs & Videos

Browse valve how-tos, NFPA tips and more

Ordering valves from ACS: Fast and Reliable

What’s it like to order a rotary valve from ACS Valves? Here’s a breakdown of our fast, reliable and cost-effective shipping process.

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View our valves in 3D

Get a 360° view of our rotary valves, parts and accessories in the 3D gallery.

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CI Series with 3D spinner

Equip your conveying system for success

Browse our suite of conveying equipment to complement your rotary valves.

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Pressure Blower Package for Conveying Systems

Introducing the Rotary Valve Sizing Tool

It’s easier than ever to size a valve

We love all valves, big and small, but only one size works best for your process. Calculate it in 3 easy steps with our new Rotary Valve Sizing Tool.

Size your valve
CI valves with ruler lines.
ACS gypsum pin mixer

See gypsum pin mixers at ACS Mixers

Mix smooth, lasting wallboard slurry

Are you in the gypsum business? So are we! Check out our sister site, ACS Mixers, to see the gypsum pin mixers we build and refurbish.

Visit acsmixers.com