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Wm. W. Meyer & Sons, Inc. 1700 Franklin Boulevard
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HDX Heavy Duty Extra-Tough Rotary Airlock Valves


If you are in an industry that requires high temperature and pressure, the HDX Heavy Duty Extra-Tough Drop-Thru rotary airlock valves are designed to withstand high temperatures and pressure differentials up to 22 psi. This legendary design sets the standard by which all others in the industry are measured.

Why This Heavy-Duty Airlock Valve?

The HDX offers the heaviest gauge rotor vane stock of any competing product, extra thick endplates, flanges and housing walls, along with outboard mounted oversized bearings that are prelubricated and permanently sealed to ensure low maintenance and prolonged life.

  • Heaviest gauge rotor vane stock
  • Extra thick endplates, flanges and housing walls
  • Outboard mounted oversized bearings, prelubricated and permanently sealed

To minimize costly maintenance and down-time, the Meyer PRO-TEC Seal is an enhanced Inflated Shaft Seal specifically designed for use in very abrasive, positive pressure pneumatic conveying applications.

HDX Heavy Duty Extra-Tough Drop-Thru Features

The HDX is available with:

  • 6-vane or 8-vane rotor design
  • Square or round flange housing with:
    • Cast iron
    • 304/316 stainless steel, or
    • Ni-hard construction

Pressure Rating: 22 PSI
Maximum Operating Temperature: 1,000°F
Materials: Dry Free-Flowing Including:
Corrosive, Hygroscopic, Abrasive
Pneumatic Conveying, Blending, Dust Collection, Drying, Pollution Control, Weighing, Mixing, Feeding
Asphalt, Cement, Food, Power, Baking, Mining, Chemical, Paint, Plastics, Petrochemical.

  • Available in fourteen sizes from 4×4 through 36×36
  • Round or square flange assures system compatibility
  • Larger diameter shafts for less deflection and optimum torque deliver
  • Permanently sealed bearings ensure protection from contamination
  • Special rotor designs including coatings, polishing, shallow pockets and closed end to specifically match your application
  • Cast iron or stainless steel housings are standard providing maximum structural stability with optional cast materials available including; inconel, hastelloy, cast steel or aluminum
  • Housing coating options include hard chrome, nickel, Teflon, tungsten carbide, chrome carbide and plasma

Contact us today to learn more.

Product Chart

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