Articles
Can’t figure out why your machinery isn’t performing? Want some info on how to replace your shaft seal? Need someone to scratch your nose for you while you work? Check out our user manuals, tech support videos, articles, and FAQ’s below, or call our Tech Support, Paul, for more help.
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![CI QQ Valve with speech bubbles]()
May 15, 2025 by Paul Bowman
‘Fix me!’ 5 signs your valve needs attention
Find out how to diagnose and troubleshoot a rotary airlock valve that makes too much noise, stops rotating, or shows any of these other symptoms.
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Sep 09, 2024 by Brittany Dollimore
6 tips for storing a rotary airlock valve
What’s the best way to handle and store a rotary airlock valve? Follow these tips to keep your valves in good shape.
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Apr 15, 2024 by Paul Bowman
How to: Check rotor-to-housing tolerances
Keep your rotary airlock valve compliant with NFPA guidelines and maintain strong performance by checking your rotor-to-housing clearances regularly.
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Mar 13, 2024 by Brittany Dollimore
How to choose a rotor for your valve’s application
Does your rotary airlock valve need a standard rotor or something more specific? Find out which rotor type you should choose based on your dry bulk material.
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Oct 18, 2023 by Paul Bowman
How to: Renew rotor tip clearances
Follow these simple steps to check clearances and adjust the blades on a rotor with adjustable tips.
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![A pair of yellow construction headphones hanging on a metal shelf]()
Jul 17, 2023 by Paul Bowman
Why is my rotary valve making noise?
If your rotary airlock valve is making squeaking or squealing noises, there are a few possible culprits at work. Check our troubleshooting guide to fix the issue.
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![Tablet with video image of a technician assembling a rotary airlock valve.]()
Jun 20, 2023 by Paul Bowman
How to: Reassemble a rotary valve
Just finished with maintenance? Follow these 8 steps to put your rotary airlock valve back together.
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Nov 14, 2022 by Paul Bowman
How to: Clean a Quick-Clean Rotary Valve
Quick-Clean rotary valves are designed for fast, tool-less cleanup — just follow these steps to get it done
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![Screens showing how to remove a rotary valve endplate]()
Aug 23, 2022 by Paul Bowman
How to: Remove a rotary valve endplate
Learn how to remove the endplate from a standard rotary airlock valve
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May 24, 2022 by Megan Thompson
Why configuration matters: Tips from a rotary airlock pro
Customization stories from an ACS rep with decades of experience in rotary airlock valve design
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![ACS Valves February 2020 Blog Header]()
Feb 17, 2020 by Paul Bowman
Are rotary airlocks supposed to leak?
The answer is yes… and no. Airlocks aren’t infallible, but there are ways to minimize leaks and keep air flow consistent
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![ACS Valves Safety Tips Header]()
Feb 13, 2020 by Megan Thompson
Need a rotary valve safety guide?
We published some comprehensive rotary valve safety guidelines in Powder & Bulk Solids
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![Mind the Gap - Exiting Train]()
Jan 14, 2020 by Paul Bowman
Yes, you actually do need to check your rotor clearances
Measure your valve’s rotor-to-housing tolerances regularly to stay NFPA compliant and maximize material flow
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![ACS Valves September Blog Header]()
Sep 13, 2019 by Paul Bowman
Avoid rotary valve jams with adjustable shear protectors
Adjustable shear protectors prevent jamming, keep materials intact and maintain an efficient fill capacity
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![ACS Valves August Blog Header]()
Aug 27, 2019 by Megan Thompson
4 things to know about the ACS Valves team
We’re smart. We save you money. We do it fast. We’re here to help.
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![Flowing white dust: Sugar or flour conveying concept]()
Jun 24, 2019 by Megan Thompson
The sticking point: Examining flow issues in bins, hoppers and silos
An ADM speaker sheds light on powder and bulk solid flow patterns
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![Pressure gauge on manufacturing equipment]()
May 16, 2019 by Megan Thompson
How to size a pressure blower package
Convey dry bulk materials efficiently with the right pressure blower size and configuration
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![3D framework of a CI Series rotary airlock valve by ACS Valves]()
Dec 19, 2018 by Jeff Kolmer
3D design: The next big thing in manufacturing tech
Here’s why ACS engineers think 3D rendering is the manufacturing tech trend to watch
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![Bowling a spare: spare parts concept]()
Nov 21, 2018 by Megan Thompson
6 critical spare parts for your conveying system
Keep your pneumatic conveying system running smoothly at all times with these essential spare parts
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![Rotary valve on a spooky backdrop with books and candle]()
Oct 22, 2018 by Paul Bowman
Signs your valve is haunted (or needs repairs)
Is your rotary valve sending you these spooky warning signs? It may be time to repair or replace it
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![Manufacturers check their rotary valve maintenance checklist]()
Oct 22, 2018 by Megan Thompson
Check out these 4 valve maintenance tips we published
We covered four critical rotary valve maintenance tips in an article for Processing Magazine
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![Rotary airlock valve rotor by ACS Valves]()
May 30, 2017 by Greg Thompson
The ultimate guide to valve rotor types
Give your material some TLC and keep your rotors lasting long. Here's a guide on which rotor works best for your application.
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![Pouring Rice]()
Mar 22, 2016 by Paul Bowman
3 things to consider when selecting a rotary valve
Some of us work better under pressure, while others like a longer, more drawn out process to stay in control. The same goes for materials as they pass through a conveying system.
