Quick Take Apart Series Rotary Airlock Valve

Rotary Airlock Valve


  • Temperatures up to 500°F
  • Up to +/- 12 PSI pressure differential
  • Cast iron or stainless construction
  • Direct drive gear-motors (9, 15, 23 RPM)
  • Eight-blade rotors
  • Tool-less removal of rotor
  • Sizes 6 and 8 inch square

Prater’s Quick-Take-Apart (QTA) Series Rotary Airlock was designed specifically for applications where quick cleaning or frequent removal of the rotary valve internals is necessary. The QTA permits safe, tool-less removal of the rotor and end plate as one single piece. This eliminates the often time-consuming step of “gapping” the rotor during reassembly for quick and easy operation. Additionally, there are no guide rails that require extra maintenance.

Other features of the Quick-Take-Apart Series include eight-blade rotors, available square sizes of 6 and 8 inches, cast iron or stainless steel construction, and direct drive gear-motors available in 9, 15 or 23 RPM.

Whether you are interested in our QTA Series or another one of our popular rotary airlock valves, Prater has the solutions that you need for the smooth processing operation that you want. Contact our airlock team today to discuss your needs and let us help you choose the products best suited for your requirements.

For over 90 years, we have proudly served the unique needs of large and small companies all over the world and developed superior equipment to help their business’ efficiency and return on investment.


Try our Airlock Size Recommendation Tool: answer a few simple questions and we’ll provide a recommendation on what size airlock to use.


The QTA Series rotary airlock can easily manage many dground or instant coffee, whole or cracked corn and cornmeal, flax seed, fly ash, grain, whole or rolled oats, potassium carbonate, salt, soybeans, starch, sugar, sulfur, and many others. Here are some more exifferent applications and materials, including ammonium alumina, cement, charcoal, amples of materials that have been feed through our QTA rotary airlocks:

  • A.B.S. Powder
  • Acetate Flake
  • Ammonium Alumina
  • Atomite
  • Baking Soda
  • Bauxite
  • Bone (Coarse Ground)
  • Bone Meal
  • Borax Powder
  • Cake (Copra Ground)
  • Calcium Carbonate
  • Carbon Black
  • Carbon Powder (Activated)
  • Cement
  • Charcoal (Ground)
  • Coal Dust
  • Coal (Pulverized)
  • Coconut (Shredded or Flake)
  • Coffee (Ground)
  • Coffee (Instant)
  • Corn (Cracked)
  • Corn Meal
  • Corn (Whole)
  • Cremora Powder
  • Dicalcium Phosphate
  • Digitalis Leaves
  • Disodium Phosphate
  • Donut Mix
  • Farina
  • Fish Meal
  • Fish Scrap
  • Flax Seed
  • Flock (Cellulose)
  • Flour (Wheat)
  • Fly Ash
  • Germ (Corn)
  • Gilsonite
  • Gluten Meal
  • Grain (Brewers)
  • Grits (Corn)
  • Hominy Meal
  • Hominy (Whole)
  • Ice (Crushed)
  • Ink Pigment
  • Iron Oxide Pigment
  • Kaolin Clay
  • Lactose
  • Lime (Hydrated)
  • Malamine Powder
  • Milk (Powdered)
  • Mustard Powder
  • Mustard Seed (Unground)
  • Oats (Rolled)
  • Oats (Whole)
  • Orange Meal
  • Peanuts (Raw)
  • Peanuts (Roasted)
  • Pebblelime
  • Polymer Resin
  • Potassium Carbonate
  • Pulpwood (Chips)
  • Rice (Hulled)
  • Salt (Granulated Food Grade)
  • Salt (Rock)
  • Semonlina
  • Soda Ash (Sodium Carbonate)
  • Sodium Acid Pyrophospate
  • Sodium Sulfate
  • Solubles (Brewer Dried)
  • Soybean Flakes (Raw)
  • Soybean Flakes (Spent)
  • Soybean Meal
  • Spices
  • Starch (Granulated)
  • Starch (Powdered)
  • Sugar (Granulated)
  • Sugar (Powdered)
  • Sulfamic Acid
  • Sulfur (Ground)
  • Talcum Powder
  • Tea Leaves (Dry)
  • Tea Leaves (Spent Wet)
  • Titanium Dioxide (TiO2)
  • Tobacco (Ground)
  • Tobacco Stems (Chopped)
  • Vermiculite (Expanded)
  • Vinyl (Regrind)
  • Wheat Bran
  • Wheat (Buck)
  • Wheat (Cracked)
  • Wheat (Whole Grain)
  • Wood Chips (Dry)
  • Zinc Oxide