905 765 2004

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ACST-4 Glandless Shaft Seal versus Packing Gland Seals

The ACS Valves ACST-4 Glandless Shaft Seal design eliminates the need for conventional packing gland-style shaft seals. The ACST-4 sleeve-style design provides a micro-tolerance, self-lubricating seal to the rotor shaft and uses three, four-lobed ring seals to provide superior sealing, extended duty cycles, and elimination of seal adjustments.

Why is rotor maintenance so important?
Rotor tips wear down over time, causing issues with material flow. Our video illustrates why rotor maintenance is so critical to the overall efficiency of your rotary airlock valve.
See the Multi-Port Valve at work in 3D
Learn about the features of our Multi-Port rotary airlock valve as it conveys high volumes of material in different conveying scenarios: one line, split feeds, and varying types of equipment.
Steps to Clean Your Quick-Clean Rotary Valve
Cleaning a Quick-Clean rotary valve is simple! This animation offers a step by step instruction on how to do it.
A 3D view of material flow in an MD Series rotary airlock valve
Watch a quick 3D demonstration of material flow and pocket fill in an MD series rotary airlock valve. The video is silent.
Ordering valves from ACS: How does it work?
It's easy to order a new valve from ACS and have it get to you. Here's how the process works from start to finish.
Drive Side Endplate Removal for ACST-4 Seals
Need a guide to removing the drive side endplate on your ACST-4 seals? Watch a quick visual breakdown of the process. The video is silent.
ACS Valves: It Will Fit
Our valves will fit literally anywhere. Watch the video to find your industry.
Rotor Assembly Tolerance Check
Keep valves compliant by ensuring rotor-to-housing clearance stays below 0.0079.
What you need to know about DHAs and NFPA 652
Every material is different, so every valve has to be designed to handle each combustible dust in order to prevent deflagration.
Will it clean?
We talk a lot about how easy it is to clean our valves. Watch as we put our dinner into one of our valves and then clean it up!
Yes, you have to remove our endplates to replace the shaft seal
We're facing our critics head on.
Understanding Airlocks: The key to increasing ROI
Learn the fundamentals of airlock performance, how to minimize air leakage and how improve efficiency.
How to convey sticky material with a blow-through
When conveying sticky material, you can get the benefits of a blow-through without the premature wear.
Piece Breaker valve declares war on lumps
Reduce agglomerated lumps without degrading the material or creating excessive dust.
Why you can't afford an unreliable valve
Choosing the right rotary valve can improve your productivity. Choosing the wrong one can do the opposite.
Make cleaning suck less with our Quick-Clean valve on RotorRails™
Cleaning is the worst! Make it better. Watch this video to learn how.
See the Quick-Clean valve in all its glory
Complex in design but simple to operate, this glamorous valve model has some serious performance to back it up.
Aero-Flow Pneumatic Rotary Feeder Valve
A feeder valve for sticky and abrasive materials combines pressurized air with the dry bulk material.
Quick-Clean Rotary Valve Demonstration
Enables quick, tool-less access to the rotor and the interior of the housing for cleaning.
ACS Valves Rotary Airlock Valve Test Center
Our test center is designed to test your materials to determine which airlock valve/feeder is best suited for your application.
ACS Valves Quick Clean Feeder - Pellet Feeder
ACS Valves Quick Clean Feeder on Rails is designed for quick take apart applications.
Quick-Clean Rotary Valve
This valve can be taken apart, cleaned and reassembled in just minutes hassle free!
ACS Quick-Clean Airlock/Feeder
The Quick Clean feeder is easy to disassemble and reassemble, in as little as 2 minutes.
ACS Valves Standard Valve Assembly
This simple rotary valve re-assembly sequence shows the significant labor and downtime savings associated with this rotary valve design
ACS Valves Airlock Testing Process
Each rotary valve goes through a thorough inspection process before leaving ACS.
ACS Valves CNC Turning Center
ACS Valves production operations include casting of rotary valve housings and the CNC machining of the housings.
ACS Valves Vertical CNC Machining Center
Production operations include CNC machining of rotor blades, rotor adjustable tips, slide-gate parts, inspection panels, and metering-s
ACST-4 Glandless Shaft Seal Removal Sequence
ACST-4 Glandless Teflon Shaft Seal can be easily removed and reassembled in just a few minutes using basic hand tools.
ACST-4 Glandless Shaft Seal versus Packing Gland Seals
Eliminates the need for conventional packing gland-style shaft seals.

PRODUCT HIGHLIGHT

Go ahead, make your valve

Put your own spin on our customizable valves to get the best valve for your application, material and industry.

SURPLUS INVENTORY

We have a series of items available for quick shipment

Items include: Pressure blower packages, MD Series, S-Pellet Series, Diverter Valves, Flex Tip Series, Screw Conveyors

S-Pellet Rotary Valve

Extra, extra: Read all about our conveying equipment

Though we specialize in rotary airlock valves, we also provide some extra conveying equipment.