Figure-8 Spectacle Blinds, Line Blinds and Spacers

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Pipe Size  150#  300#   
OD  ID  CC  Thickness  OD  ID  CC  Thickness
 1 2.50  1.05  3.12  0.12  2.75 1.05  3.50 0.25 
 1-1/2 3.25  1.90  3.88  0.25  3.62 1.66  4.50  0.25 
2 4.00 2.38 4.75 0.25 4.25 2.38 5.00 0.38
2-1/2 4.75 2.88 5.50 0.25 5.00 2.88 5.88 0.38
3 5.25 3.50 6.00 0.25 5.75 3.50 6.62 0.38
4 6.75 4.50 7.50 0.38 7.00 4.50 7.88 0.50
6 8.62 6.62 9.50 0.50 9.75 6.62 10.62 0.62
8 10.88 8.62 11.75 0.50 12.00 8.62 13.00 0.88
10 13.25 10.75 14.25 0.62 14.12 10.75 15.25 1.00
12 16.00 12.75 17.00 0.75 16.50 12.75 17.75 1.12
14 17.62 14.00 18.75 0.75 19.00 14.00 20.25 1.25
16 20.12 16.00 21.25 0.88 21.12 16.00 22.50 1.50
18 21.50 18.00 22.75 1.00 23.38 18.00 24.75 1.62
20 23.75 20.00 25.00 1.12 25.62 20.00 27.00 1.75
24 28.12 24.00 29.50 1.25 30.38 24.00 32.00 2.00

 Pipe Size  600#     900#    
OD ID  CC  Thickness  OD  ID  CC  Thickness 
1 2.75  1.05  3.50  0.25  3.00  1.05  4.00  0.25 
1-1/2 3.62 1.68 4.50 0.38 3.75 1.68 4.88 0.38
2 4.25 2.16 5.00 0.38 5.50 2.16 6.50 0.50
2-1/2 5.00 2.64 5.88 0.50 6.38 2.64 7.50 0.50
3 5.75 3.26 6.62 0.50 6.50 3.26 7.50 0.62
4 7.50 4.26 8.50 0.62 8.00 4.26 9.25 0.75
6 10.38 6.36 11.50 0.88 11.25 6.36 12.50 1.00
8 12.50 8.33 13.75 1.12 14.00 8.33 15.50 1.38
10 15.62 10.42 17.00 1.38 17.00 10.42 18.50 1.62
12 17.88 12.39 19.25 1.62 19.50 12.39 21.00 1.88
14 19.25 13.62 20.75 1.75 20.38 13.62 22.00 2.12
16 22.12 15.62 23.75 2.00 22.50 15.62 24.25 2.38
18 24.00 17.62 25.75 2.12 25.00 17.62 27.00 2.62
20 26.75 19.56 28.50 2.50 27.38 19.56 29.50 2.88
24 31.00 23.50 33.00 2.88 32.88 23.50 35.50 3.50

Standard Features:

  • Handle or tie bar hole is same size as flange bolt hole
  • Thicknesses based on carbon steel A516 Gr.70 or SS304/316
  • Serrated machined face in accordance with ASME B16.5
  • Size, rating and material is stamped on handle or tie bar
  • ID and OD are flamecut finish, de-burred
  • One coat shop primer

Options:

  • RTJ Designs
  • Smooth gasket surface
  • Larger sizes and pressure ratings available
  • Alloy materials and special coatings

Notes:

  • Dimensions in inches
  • Dimensions per ASME B16.48, designed per ASME B31