Heavy Duty Rotary Airlock

Key Features

  • Maximum number of blades in contact with body at one time without affecting throughput.
  • Good throat opening at airlock entry allowing high pocket filling efficiency.
  • Minimum clearance at rotor tips and sides with body.
  • Robust body adequately stiffened to prevent distortion.
  • Heavy shaft diameters minimising deflection.
  • Outboard bearings for non-contamination.
  • Packing gland type seals.
  • Maximising airlock speed to 25 rpm -prolonging life, ensuring good throughput.
  • Precision machining of components.

The prime function of a Rotary Airlock is to regulate the flow from one chamber to another while maintaining a good airlock condition. The product is mainly in dry powder or granular form. In the dust filtration field, a good airlock is essential on cyclone and bag filter applications in order that the manufacturers quoted high dust collection efficiencies can be maintained. Airlocks are also important in the pneumatic conveying industry, where product is regulated into a pressure or vacuum conveying line while minimising air leakage. With Rotolok there are no double standards, all our standard rotary valves and airlocks are precision machined for close tolerances and minimal eccentricities. Pressure differentials to 20psi and temperatures to 750°F are considered the norm and extreme pressures and temperatures can be accommodated with special designs. If your application requires such considerations contact the Rotolok Engineering team.

Our standard Rotary Airlocks are available with circular or square inlets from 2″ up to 36″.

 

 

 

  • BODIES

    Cast Iron, Stainless Steel or Aluminum precision bored.

  • END COVERS

    Cast Iron, Stainless Steel or Aluminum spigot located in body for concentricity.

  • ROTOR

    Fabricated Mild or Stainless Steel.

  • SHAFT SEAL

    Gland type with PTFE packing.

  • BEARINGS

    Sealed-for-life ball type rigged outboard or high temperature above 480°F.

  • DRIVE

    NEMA Frame C-Face TEFC motor mounted to parallel shaft gear reducer sidewall mounted to airlock body complete with taper lock sprockets and chain all in an enclosed OSHA approved guard

  • Quick Release Rotors
  • Direct Coupled Drives
  • Air Purge Glands
  • Body Vents
  • Inlet Vent Hoppers
  • Dropout Boxes
  • V.S. Drives
  • Speed Switches
  • Explosion Proof Motors
  • Shear Plate Deflectors
  • Tungsten Carbide Coating
  • Hard Chrome Internals etc.

All dimensions are in inches unless otherwise stated

SIZE A A1 B B1 C D E F G H J K L M N P Q R S T V W X H.P.
5 5 5 8 ⅞ 8 ⅞ ½ 3 ⅞ 7 ¾ 7 ⅞ 6 ¼ 9 ⅛ 16 8 ⅝ 7 28 4 ⅝ 8 ⁹⁄₁₆ 8 7 On Application ½
6 6 6 9 ⅞ 9 ⅞ ½ 5 ½ 11 7 ⅛ 6 ⅞ 9 ¾ 16 9 ¼ 7 ¾ 28 4 ⁵⁄₁₆ 12 ½ 8 7 3 2 ¾ 3 2 ¾ ½
8 8 8 11 ⅞ 11 ⅞ 6 ½ 13 6 ⅛ 7 ⅞ 10 ¾ 16 10 ¼ 8 ⅝ 28 5 ⅝ 12 ½ 8 7 3 3 ⁹⁄₁₆ 3 3 ⁹⁄₁₆ ½
10 10 10 13 ¼ 13 ¼ 7 ½ 15 7 ⅞ 9 12 ¾ 18 ⅞ 11 ½ 9 ⅞ 35 6 ⁵⁄₁₆ 12 ⁹⁄₁₆ 10 8 3 4 3 4 1
12 12 12 15 ¾ 15 ¾ ½ 9 ¹⁄₁₆ 18 ⅛ 6 ¾ 10 ¼ 13 ⅞ 18 ⅞ 12 ⅝ 11 35 7 ¹¹⁄₁₆ 12 ½ 10 8 3 4 ¹¹⁄₁₆ 3 4 ¹¹⁄₁₆ 1
14 14 14 18 ½ 18 ½ ¾ 10 ⅛ 20 ¼ 6 ¼ 10 ⅝ 14 ⅜ 20 ⅛ 13 11 ⅜ 35 8 ¹¹⁄₁₆ 12 ½ 10 8 3 5 ½ 3 5 ½ 1
16 16 16 21 ⅝ 21 ⅝ ¾ 11 ⅞ 22 ⅞ 4 ½ 13 16 ¾ 24 ⅝ 15 ⅞ 13 ⅞ 50 9 ¼ 12 ¹¹⁄₁₆ 14 9 3 6 ½ 3 6 ½ 1 ½
18 18 18 24 24 ¾ 12 ⅝ 24 ⅞ 3 ⅜ 14 17 ¾ 24 ⅝ 16 ⅞ 14 ⅞ 50 11 ¼ 12 ¹¹⁄₁₆ 14 9 3 7 ⅜ 3 7 ⅜ 2
20 20 20 25 ⅝ 25 ⅝ ¾ 13 ⅜ 26 ⅜ 5 15 18 ¾ 27 ½ 17 ⅞ 15 ⅞ 50 11 ⅜ 16 ¹¹⁄₁₆ 14 9 4 5 ¹³⁄₁₆ 4 5 ¹³⁄₁₆ 2
24 24 24 29 ½ 29 ½ ¾ 15 29 ½ 4 ½ 17 20 ¾ 27 ½ 19 ¾ 17 ¾ 50 13 ³⁄₁₆ 16 ¹¹⁄₁₆ 14 9 4 6 ¹³⁄₁₆ 4 6 ¹³⁄₁₆ 3
30 29 ½ 29 ½ 39 ⅜ 39 ⅜ 1 19 ⅝ 39 ⅜ 3 19 ¾ 25 ¼ 35 ¾ 23 ⅞ 20 ½ 70 17 ¹¹⁄₁₆ 24 ¹¹⁄₁₆ 20 12 6 5 ⅞ 6 5 ⅞ 3
36 36 36 45 ⅞ 45 ⅞ 1 23 ⅝ 47 ¼ -1 23 ⅞ 29 ½ 39 ⅜ 27 ⅞ 24 ⅝ 70 21 ¼ 24 20 12 6 6 ⅞ 6 6 ⅞ 5

All dimensions are in inches unless otherwise stated

SIZE A B C D E F G H J K L M N O P Q R S H.P.
2 2 6 2 ⅜ 4 ¾ * 3 ON APPLICATION
3 ½ 3 ⅜ 7 ½ 3 ⅛ 6 ¼ * 4 ⅝ ON APPLICATION
5 5 9 ½ ½ 4 ¼ 8 ½ 7 ¾ 6 ¼ 9 ⅛ 16 8 ⅝ 7 28 5 ⅝ 8 ¹¹⁄₁₆ 7 ⅞ 8 7 ½
6 6 11 ¼ ½ 5 ½ 10 ⅝ 7 ⅛ 6 ⅞ 9 ¾ 16 9 ¼ 7 ⅝ 28 5 ⅝ 8 9 ½ 8 7 ½
8 8 12 ½ ½ 6 ¼ 12 ¼ 6 ⅛ 7 ⅞ 10 ¾ 16 10 ¼ 8 ⅝ 28 5 ⅝ 8 ¹¹⁄₁₆ 11 8 7 ½
10 10 14 ½ 7 ⅞ 15 8 9 12 ¾ 18 ⅞ 11 ⅜ 9 ¾ 35 6 ⅛ 8 ¹¹⁄₁₆ 12 ⅝ 10 8 1
12 12 17 ⅜ ¾ 9 ½ 18 ⅜ 6 ¾ 10 ¼ 13 ⅞ 18 ⅞ 12 ⅝ 11 35 7 ¹¹⁄₁₈ 12 15 ½ 10 8 1
14 14 21 ¾ 10 ⅝ 20 ½ 6 ⅜ 10 ⅝ 14 ⅜ 20 ¼ 13 11 ¾ 35 8 ¹¹⁄₁₈ 12 17 ½ 10 8 1
16 16 21 ¼ ¾ 11 ⅞ 22 ⅞ 4 ⅜ 13 16 ¾ 24 ⅝ 15 ⅞ 13 ⅞ 50 9 ¼ 12 19 ½ 14 9 1 ½
18 18 25 ¾ 12 ⅝ 24 ⅝ 4 14 17 ¾ 24 ⅝ 16 ½ 14 ⅞ 50 11 ¼ 16 1 ¼ 22 ¾ 14 9 2
20 20 27 ½ ¾ 13 ⅜ 26 ⅜ 5 15 18 ¾ 27 ½ 17 ⅞ 15 ⅞ 50 11 ⅜ 20 1 ¼ 25 14 9 2
24 24 32 ¾ 15 ⅛ 30 5 17 20 ¾ 27 ½ 19 ¾ 17 ⅞ 50 13 ³⁄₁₆ 20 1 ⅜ 29 ½ 14 9 3
30 30 38 ¾ 1 19 ⅝ 39 ⅜ 2 19 ¾ 25 ½ 35 ⅞ 23 ⅞ 20 ½ 70 17 ¹¹⁄₁₈ 20 1 ⅜ 36 20 12 3