Features & Benefits:

  • Pre-fit Performance™ housings provide all of the in-use advantages built into every ACS valve, plus the assurance of precise alignment and fast installation when replacing competitive valves.
  • Available in 4 heights, from 12"H to 24"H; and 4 flange sizes from 7 5/8"H to 16"H.
  • Valve housing cast in North America; ensures superior strength and solidification of housing's metallurgy.
  • CNC-machined components and housing provide precision tolerances; eliminates axial shaft movement, extends maintenance cycles.
  • Outboard bearing design protects bearings in high-temperature and high-PSIG applications; removes bearings from direct path of damaging contaminants.
  • Large shaft diameter eliminates rotor deflection; reduces rotor tip wear and bearing seal leakage.
  • Easily manages pressure differentials up to 15 PSIG; super-duty series up to 22 PSIG.
  • Excellent performance in high-temperature applications up to 750°F.
  • Cast iron housing.
  • 8-vane rotor with beveled tips and sides.

Options:

  • 304 or 316 cast stainless steel valve housing.
  • No. 4 finish on internal product contact surfaces of housing, and all rotor surfaces.
  • Interior coating: hard chrome and tungsten.
  • Rotor types: closed-end, shallow-pocket, and adjustable-tip.
  • Adjustable rotor tip types: EPDM rubber, polyurethane, AR400, and stainless steel.
  • Shaft seal types: ACST-4™ glandless Teflon® shaft seal, and packing gland.
Option: Staggered rotor pocket
Uniform
Feed
Advantages
  • 16 offset pockets ensure a continuous and uniform flow rate to the conveying line
  • More accurate rate of material flow
Options
  • Available in mild steel or stainless steel
  • Open end rotor or closed end shrouds
Rotary Valve Capacity (Cubic Feet/Hr.)
Valve Size 8 10 51 82 102 122 143 163 184 204 224
10 20 102 163 204 245 286 326 367 408 449
12 37 183 293 366 439 512 586 659 732 805
16 120 600 960 1200 1440 1680 1920 2160 2400 2640
1 5 8 10 12 14 16 18 20 22
Rotor Speed (RPM)

Customizations: DR-S Series

Rotors

Adjustable Polyurethane Tip Rotor Adjustable Polyurethane Tip Rotor Adjustable Rotor Adjustable Rotor Closed End Rotor Closed End Rotor Flex Tip Style Rotor Flex Tip Style Rotor Open End Rotor Open End Rotor Reduced Volume Rotor Reduced Volume Rotor

Kits

Combination Shaft Seal and Rotor Pocket Air Purge Kit Combination Shaft Seal and Rotor Pocket Air Purge Kit Rotor Pocket Air Purge Kit Rotor Pocket Air Purge Kit Shaft Seal Air Purge Kit Shaft Seal Air Purge Kit Zero Speed Switch Kit Zero Speed Switch Kit

Accessories

Discharge Blow-Through Adapter for Square Valves Discharge Blow-Through Adapter for Square Valves Discharge Finger Guard for Square Valves Discharge Finger Guard for Square Valves Inlet Shear Protector: Half-Moon Style for Square Valves Inlet Shear Protector: Half-Moon Style for Square Valves Inlet Shear Protector: Spool Style for Square Valves Inlet Shear Protector: Spool Style for Square Valves Inlet Shear Protector: Spool Style for Square Valves, Vented Inlet Shear Protector: Spool Style for Square Valves, Vented Inlet Shunt with Tip Cleaner for Square Valves Inlet Shunt with Tip Cleaner for Square Valves Maintenance Slide Gate for Square Valves (Air Operated) Maintenance Slide Gate for Square Valves (Air Operated) Maintenance Slide Gate for Square Valves (Manually Operated) Maintenance Slide Gate for Square Valves (Manually Operated) Vent Box for Square Valves Vent Box for Square Valves

Specifications

Inlet/Outlet Flange Sizes: 4 sizes from 7 5/8" to 16"
Material of Construction: Cast Iron, Stainless Steel
Pressure Differential: Up to 22 PSIG
High Temperature Range: 750°F
Industries
Systems
Types

Videos

Drive Side Endplate Removal for ACST-4 Seals
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.
Yes, you have to remove our endplates to replace the shaft seal
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
Understanding Airlocks: The key to increasing ROI

Learn the fundamentals of airlock performance, how to minimize air leakage and how improve efficiency.
DR-S Series rotary airlock valve, side view
Explore in our 3D gallery.
CI valves with ruler lines.
Try the valve sizing tool

Brochures

The ACS DR-S Valve: Keep your process rolling

The ACS DR-S Valve: Keep your process rolling

Plug and play with our drop-in replacement series

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Read more Sanitary CI with Quick-Clean RotorRail™ Sanitary CI with Quick-Clean RotorRail™ Rotary Valve for Metering, Feeding and Airlock Applications Read more