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Oddball Rotary Airlocks

oddball rotary airlocks
oddball rotary airlocks

Key Features

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

Our downloadable brochure simply outlines Rotolok’s range of special sized rotary airlocks including oddballs. However, Rotolok manufactures even more than are listed here, including some round inlets to square outlets and the range is continuously being extended.

For full specifications, rotor selection and other options please refer to our Rotary Valve & Airlocks pages.

If you require a special valve that does not appear here, we may design and manufacture to your requirements, please contact our sales office.

  • Body

    Cast Iron, Stainless Steel or Aluminum precision bored

  • End Covers

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

  • Bearings

    Generally sealed-for-life-ball type rigged outboard or high temperature type above 480°F

  • Rotor

    Fabricated Mild or Stainless Steel

  • Shaft Seal

    Gland type with PTFE packing

  • Drive

    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

Oddball Rotary Airlocks Inlet Oddball Rotary Airlocks Square Dimensions

All dimensions are in inches unless otherwise stated

NOMINAL INLET SIZE A A1 B B1 C D E G K L M N P
3’’ x 12’’ 3 ⅛’’ 11 ¹³⁄₁₆’’ 5 ⅞’’ 13’’ ⅜’’ 3 ⅜’’ 6 ¹¹⁄₁₆’’ 9 ¹³⁄₁₆’’ 12 ³⁄₁₆’’ 10 ⁹⁄₁₆’’ 28mm - 6
4’’ x 4’’ 4’’ 4’’ 6 ¾’’ 6 ¾’’ ⅜’’ 3 ¾’’ 7 ½’’ 5 ¾’’ 7 ¾’’ 6 ½’’ 1’’ 3 ⁷⁄₁₆’’ 4
4’’ x 6’’ 4’’ 6’’ 6 ½’’ 8 ⅜’’ ⅜’’ 4 ¾’’ 9 ½’’ 7 ⁵⁄₁₆’’ 9 ¹¹⁄₁₆’’ 8’’ 1 ⅛’’ 5’’ 8
9’’ x 9’’ 9’’ 9’’ 12’’ 12’’ ⅜’’ 5 ³⁄₁₆’’ 10 ⅜’’ 8 ⅝’’ 11’’ 9 ⅜’’ 1 ⅛’’ 5 ¼’’ 12
5’’ x 10’’ 5’’ 10’’ 8’’ 12 ¼’’ ½’’ 5 ¼’’ 10 ½’’ 8 ¹⁵⁄₁₆’’ 11 ⅜’’ 9 ¹¹⁄₁₆’’ 1 ⅛’’ 5’’ 12
5’’ x 12’’ 5’’ 12’’ 8’’ 14 ¼’’ ½’’ 5 ¼’’ 10 ½’’ 10’’ 12 ⅜’’ 10 ¹¹⁄₁₆’’ 1 ⅛’’ 5’’ 12
8’’ x 18’’ 7 ⅞’’ 18 ⅛’’ 11 ¹³⁄₁₆’’ 22 ¹⁄₁₆’’ ⁹⁄₁₆’’ 6 ½’’ 13’’ 13’’ 16 ¹³⁄₁₆’’ 13 ¹¹⁄₁₆’’ 1 ⅜’’ 5 ¼’’ 16
8’’ x 24’’ 7 ⅞’’ 23 ⅝’’ 11 ¹³⁄₁₆’’ 27 ⁹⁄₁₆’’ ⁹⁄₁₆’’ 6 ½’’ 13’’ 15 ¹¹⁄₁₆’’ 18 ⅛’’ 16 ½’’ 1 ⅛’’ 5 ⅞’’ 16
9’’ x 11’’ 9 ³⁄₁₆’’ 10 ⅝’’ 13’’ 14 ⁹⁄₁₆’’ ⅝’’ 8 ¹⁄₁₆’’ 16 ⅛’’ 9 ¾’ 12 ⅝’’ 10 ½’’ 1 ½’’ 7 ¼’’ 12
14’’ x 15’’ 14’’ 15 ¼’’ 18 ½’’ 19 ¾’’ ⅝’’ 8 ⅞’’ 17 ¾’’ 12’’ 14 ⅜’’ 12 ¾’’ 1 ⅜’’ 7 ⅝’’ 12
12’’ x 48’’ 12’’ 48’’ 16 ½’’ 54’’ ⁹⁄₁₆’’ 9’’ 18’’ 28 ⁵⁄₁₆’’ 30 ¹¹⁄₁₆’’ 29 ¹⁄₁₆’’ 1 ⅜’’ 7 ¼’’ 28
10’’ x 10’’ 9 ⅞’’ 9 ⅞’’ 14 ⅜’’ 14 ⅜’’ ⁹⁄₁₆’’ 9 ⅞’’ 19 ¹¹⁄₁₆’’ 10 ⅜’’ 12 ¹³⁄₁₆’’ 11 ⅛’’ 1 ½’’ 8 ⅛’’ 12
10’’ x 10’’ 10’’ 10’’ 13’’ 13’’ ½’’ 8’’ 16’’ 10 ½’’ 13 ⁵⁄₁₆’’ 11 ⁵⁄₁₆’’ 2’’ 8 ⅛’’ 8
10’’ x 14’’ 9 ⅞’’ 13 ¾’’ 13 ¾’’ 17 ¾’’ ½’’ 9 ⁷⁄₁₆’’ 18 ⅞’’ 10 ⅝’’ 12 ¹⁵⁄₁₆’’ 11 ⅜’’ 1 ⅜’’ 8 ⅝’’ 12
12’’ x 23’’ 12’’ 22 ¾’’ 18 ¼’’ 30 ⅝’’ 1’’ 12’’ 24’’ 16 ⅞’’ 21’’ 17 ¹¹⁄₁₆’’ 2’’ 11 ¼’’ 18
18’’ x 32’’ 18 ⅛’’ 32 ¹⁄₁₆’’ 24’’ 38’’ ¹¹⁄₁₆’’ 12’’ 24’’ 20 ¹¹⁄₁₆’’ 23 ⅞’’ 21 ½’’ 2’’ 11 ⁷⁄₁₆’’ 18
Oddball Rotary Airlocks Inlet Oddball Rotary Airlocks Square Dimensions

All dimensions are in inches unless otherwise stated

NOMINAL INLET SIZE Q R S T V W X AB AC AD AE AF ft3/rev
3’’ x 12’’ ⁷⁄₁₆’’ 8mm 7mm 1 4 ½’’ 2 5’’ - - - - - 0.109
4’’ x 4’’ ½’’ ¼’’ ¼’’ 1 5 ¾’’ 1 5 ¾’’ 4’’ 3 ⁹⁄₁₆’’ 6’’ ⅜ UNC ¾’’ 0.056
4’’ x 6’’ ⅜’’ ¼’’ ¼’’ O/A O/A O/A O/A 4’’ 5’’ 4’’ ⅜ UNC ¾’’ 0.189
9’’ x 9’’ ½’’ ¼’’ ¼’’ O/A O/A O/A O/A 3 ⅞’’ 5’’ 4’’ ⅜ UNC ¾’’ 0.223
5’’ x 10’’ ⅜’’ ¼’’ ¼’’ O/A O/A O/A O/A 3 ¹¹⁄₁₆’’ 4 ⁵⁄₁₆’’ 4 ¹⁄₁₆’’ ⅜ UNC ¾’’ 0.265
5’’ x 12’’ ⅜’’ ¼’’ ¼’’ O/A O/A O/A O/A 3 ¹¹⁄₁₆’’ 4 ⁵⁄₁₆’’ 4 ¹⁄₁₆’’ ⅜ UNC ¾’’ 0.316
8’’ x 18’’ ⁹⁄₁₆’’ ⁵⁄₁₆’’ ⁵⁄₁₆’’ O/A O/A 4 5 ⅛’’ 4 ⅞’’ 6’’ 7’’ ⅜ UNC ¾’’ 0.411
8’’ x 24’’ ⁹⁄₁₆’’ ¼’’ ¼’’ O/A O/A 4 6 ½’’ 3 ¹¹⁄₁₆’’ 5 ⅛’’ 4 ⅛’’ ⅜ UNC ¾’’ 0.554
9’’ x 11’’ ½’’ ⅜’’ ⅜’’ 3 3 ⅝’’ 3 4 ³⁄₁₆’’ 4 ¹³⁄₁₆’’ 9 ¹³⁄₁₆’’ 11 ¹³⁄₁₆’’ ½ UNC ¾’’ 0.534
14’’ x 15’’ ⁹⁄₁₆’’ ⁵⁄₁₆’’ ⁵⁄₁₆’’ O/A O/A O/A O/A 4 ⁵⁄₁₆’’ 6’’ 7’’ ⅜ UNC ¾’’ 0.956
12’’ x 48’’ ⁷⁄₁₆’’ ⁵⁄₁₆’’ ⁵⁄₁₆’’ 3 5’’ O/A O/A 3 ¹⁵⁄₁₆’’ 6’’ 7’’ ⅜ UNC ¾’’ 2.198
10’’ x 10’’ ⁹⁄₁₆’’ ⅜’’ ⅜’’ 3 4 ⁵⁄₁₆’’ 4 4 ⁵⁄₁₆’’ 5 ⅝’’ 9 ⁷⁄₁₆’’ 11 ⁷⁄₁₆’’ ⅝ UNC ¹³⁄₁₆’’ 0.731
10’’ x 10’’ ⁷⁄₁₆’’ ½’’ ½’’ 2 6’’ 2 6’’ 5 ⅝’’ 9 ¾’’ 8’’ ⅜ UNC 1’’ 0.959
10’’ x 14’’ ½’’ ⁵⁄₁₆’’ ⁵⁄₁₆’’ 3 4 ¹⁄₁₆’’ 3 5 ½’’ 3 ¹³⁄₁₆’’ 13 ⁹⁄₁₆’’ 5 ¹¹⁄₁₆’’ ½ UNC ¾’’ 1.089
12’’ x 23’’ ¹¹⁄₁₆’’ ½’’ ½’’ 3 5 ¼’’ 5 5 ⅝’’ 6 ⅛’’ 12 ½’’ 13’’ ⅝ UNC 1 ⁹⁄₁₆’’ 3.189
18’’ x 32’’ ¹¹⁄₁₆’’ ½’’ ½’’ 3 7’’ 6 6’’ 4 ¹⁵⁄₁₆’’ 16 ⁵⁄₁₆’’ 5 ½’’ ⅝ UNC 1 ³⁄₁₆’’ 5.469
Oddball Rotary Airlocks Circular Inlet Oddball Rotary Airlocks Circular Dimensions

All dimensions are in inches unless otherwise stated

NOMINAL INLETØ x BORE øA øB C D E G K L øM N O P Q R S AB AC AD AE AF ft3/rev
½’’ x ¾’’ ½’’ 3 ½’’ ¼’’ 2 ¹⁄₁₆’’ 4 ³⁄₁₆’’ 1 ¾’’ 2 ⅞’’ 2 ³⁄₁₆’’ ⅜’’ - 4 ⅝’’ 2 ⅜’’ ³⁄₁₆’’ ³⁄₁₆’’ - - - - - 87 x 10⁻⁶
6’’ x 7’’ 5 ⅞’’ 11 ¼’’ ½’’ 5 ⅛’’ 10 ¼’’ 7 ¹³⁄₁₆’’ 10 ⅛’’ 8 ⁹⁄₁₆’’ 1 ⅛’’ 4 ⁵⁄₁₆’’ 8 ⅞’’ 9 ⁷⁄₁₆’’ ¼’’ ¼’’ 4 ¹⁵⁄₁₆’’ 5 ¾’’ 3 ¹⁵⁄₁₆’’ ⅜ UNC ¹¹⁄₁₆ 0.11
6’’ x 8’’ 6’’ 10’’ ⁵⁄₁₆’’ 4 ⅞’’ 9 ¾’’ 6 ⅞’’ 9 ¼’’ 7 ⅝’’ 1 ⅛’’ 5’’ 6 ⁷⁄₁₆’’ 8 ¾’’ ¼’’ ¼’’ 3 ¹¹⁄₁₆’’ 5 ⅛’’ 4 ⅛’’ ⅜ UNC ¾ 0.167
7’’ x 8’’ 6 ⅞’’ 12 ⁷⁄₁₆’’ ½’’ 6 ⁵⁄₁₆’’ 12 ⅝’’ 8 ¹¹⁄₁₆’’ 10 ⅝’’ 9 ⁷⁄₁₆’’ 1 ⅛’’ 5 ⅛’’ 8 ⅞’’ 10 ⅝’’ ¼’’ ¼’’ 4 ¹⁵⁄₁₆’’ 7 ½’’ 3 ¹⁵⁄₁₆’’ ⅜ UNC ¹¹⁄₁₆ 0.218
8’’ x 10’’ 7 ⅞’’ 13 ⅜’’ ½’’ 7 ⁵⁄₁₆’’ 14 ⁹⁄₁₆’’ 8 ⁷⁄₁₆’’ 10 ⅞’’ 9 ¼’’ 1 ⅜’’ 6 ⁵⁄₁₆’’ 8 ⅞’’ 11 ¾’’ ⁵⁄₁₆’’ ⁵⁄₁₆’’ 3 ¹³⁄₁₆’’ 4 ⅝’’ 4 ¹⁵⁄₁₆’’ ½ UNC ¹¹⁄₁₆ 0.423
8’’ x 10’’ 8’’ 12 ⅝’’ ½’’ 6 ⅛’’ 12 ¼’’ 8 ⅝’’ 11’’ 9 ⅜’’ 1 ⅛’’ 6 ⅞’’ 8 ⅞’ 11 ¼’’ ¼’’ 3 ¹¹⁄₁₆’’ 9 ¹³⁄₁₆’’ 4 ⅛’’ ⅜ UNC ¾ 0.394
8’’ x 12’’ 8 ¹⁄₁₆’’ 13 ½’’ ¾’’ 8 ¹¹⁄₁₆’’ 18 ⁵⁄₁₆’’ 10 ¼’’ 12 ⅝’’ 11’’ 1 ⅜’’ 7 ⁵⁄₁₆’’ 8 ⅞’’ 11 ¾’’ ⁵⁄₁₆’’ ⁵⁄₁₆’’ 3 ¹⁵⁄₁₆’’ 12 ⅝’’ 5 ½’’ ⅝ UNC 1 ³⁄₁₆ 0.75
10’’ x 12’’ 9 ¹³⁄₁₆’’ 15 ⁹⁄₁₆’’ ⁹⁄₁₆’’ 8 ⁷⁄₁₆’’ 16 ¹⁵⁄₁₆’’ 11’’ 13 ⅜’’ 11 ¾’’ 1 ⅜’’ 7 ½’’ 12 ⅞’’ 13 ¾’’ ⁵⁄₁₆’’ ⁵⁄₁₆’’ 5 ⁷⁄₁₆’’ 11 ³⁄₁₆’’ 4 ¹⁵⁄₁₆’’ ½ UNC ¹¹⁄₁₆ 0.705
10’’ x 12’’ 9 ¹³⁄₁₆’’ 16’’ ⁹⁄₁₆’’ 8 ⁷⁄₁₆’’ 16 ¹⁵⁄₁₆’’ 11’’ 13 ⅜’’ 11 ¾’’ 1 ⅜’’ 7 ½’’ 12 1’’ 14 ¼’’ ⁵⁄₁₆’’ ⁵⁄₁₆’’ 5 ⁷⁄₁₆’’ 5 ⁹⁄₁₆’’ 4 ¹⁵⁄₁₆’’ ½ UNC ¹¹⁄₁₆ 0.705
10’’ x 15’’ 11 ¹³⁄₁₆’’ 17 ½’’ ⅝’’ 10 ¼’’ 20 ½’’ 13’’ 16 ⅞’’ 13 ¾’’ 1 ⅜’’ 8 ⅞’’ 12 ⅞’’ 15 ¾’’ ⁵⁄₁₆’’ ⁵⁄₁₆’’ 5 ⅞’’ 14 ³⁄₁₆’’ 4 ¹⁵⁄₁₆’’ ½ UNC ⅞ 1.33
14’’ x 18’’ 13 ¾’’ 19 ⅞’’ ¹³⁄₁₆’’ 12’’ 24’’ 14 ⅜’’ 16 ¾’’ 15 ⅛’’ 2’’ 10 ⅝’’ 16 ⅞’’ 18 ⅛’’ ½’’ ½’’ 6 ⅛’’ 16 ⁹⁄₁₆’’ 4 ¹⁵⁄₁₆’’ ½ UNC ⅞ 2.216