Note: Use paddle blinds and ring spacers where no dimensions are shown for spectacle blind.

Dimensions based on sizes designed to suit ANSI B.16.5 flanges. All dimensions given in mm.

T = Thickness 

NB ANSI 150
Size A B C D E W F G T
25 63.0 29.0 79.0 16.0 42.0 32.0 145.0 40.0 6.0
40 82.0 42.0 98.0 16.0 50.0 32.0 155.0 40.0 6.0
50 101.0 54.0 121.0 19.0 60.0 32.0 165.0 40.0 6.0
80 132.0 80.0 152.0 19.0 60.0 32.0 175.0 40.0 6.0
100 171.0 104.0 191.0 19.0 70.0 32.0 205.0 40.0 10.0
150 218.0 156.0 241.0 22.0 80.0 32.0 230.0 40.0 10.0
200 276.0 204.0 298.0 22.0 90.0 40.0 260.0 45.0 16.0
250 336.0 256.0 362.0 25.0 100.0 40.0 295.0 45.0 16.0
300 406.0 306.0 432.0 25.0 110.0 50.0 330.0 45.0 20.0
350 447.0 338.0 476.0 29.0 120.0 50.0 360.0 45.0 22.0
400 510.0 389.0 * Refer to note 50.0 390.0 45.0 25.0
450 545.0 440.0 50.0 410.0 45.0 25.0
500 600.0 491.0 60.0 440.0 45.0 30.0
600 715.0 593.0 60.0 500.0 50.0 36.0

 

NB ANSI 300
Size A B C D E W F G T
25 70.0 29.0 89.0 16.0 45.0 32.0 150.0 40.0 6.0
40 92.0 42.0 114.0 22.0 50.0 32.0 170.0 40.0 6.0
50 108.0 54.0 127.0 19.0 60.0 25.0 173.0 40.0 10.0
80 146.0 80.0 168.0 22.0 60.0 32.0 195.0 40.0 10.0
100 177.0 104.0 200.0 22.0 65.0 32.0 215.0 40.0 12.0
150 247.0 156.0 270.0 22.0 80.0 32.0 250.0 40.0 20.0
200 304.0 204.0 330.0 25.0 90.0 40.0 280.0 45.0 22.0
250 358.0 256.0 387.0 29.0 100.0 40.0 312.0 45.0 25.0
300 419.0 306.0 * Refer to note 50.0 350.0 45.0 30.0
350 482.0 338.0 40.0 383.0 45.0 32.0
400 535.0 384.0 50.0 415.0 45.0 36.0
450 592.0 434.0 40.0 445.0 45.0 42.0
500 650.0 485.0 45.0 447.0 45.0 46.0
600 770.0 578.0 60.0 477.0 45.0 46.0

 

NB ANSI 600
Size A B C D E W F G T
25 70.0 29.0 89.0 16.0 52.0 32.0 150.0 40.0 6.0
40 92.0 42.0 114.0 22.0 65.0 32.0 170.0 40.0 10.0
50 108.0 52.0 127.0 19.0 65.0 25.0 173.0 40.0 10.0
80 146.0 76.0 168.0 22.0 65.0 32.0 195.0 40.0 16.0
100 190.0 100.0 216.0 25.0 75.0 32.0 225.0 40.0 16.0
150 263.0 149.0 292.0 29.0 85.0 32.0 267.0 40.0 25.0
200 317.0 196.0 349.0 32.0 95.0 40.0 300.0 45.0 30.0
250 397.0 246.0 * Refer to note 40.0 345.0 45.0 36.0
300 454.0 292.0 38.0 370.0 45.0 42.0
350 488.0 320.0 40.0 393.0 45.0 46.0
400 561.0 366.0 50.0 432.0 45.0 50.0
450 610.0 412.0 50.0 463.0 45.0 60.0
500 680.0 460.0 45.0 500.0 45.0 65.0
600 786.0 552.0 50.0 560.0 50.0 80.0

 

NB ANSI 900
Size A B C D E W F G T
25 76.0 29.0 102.0 25.0 60.0 32.0 164.0 40.0 10.0
40 95.0 42.0 124.0 29.0 65.0 32.0 179.0 40.0 40.0
50 139.0 52.0 165.0 25.0 70.0 32.0 198.0 40.0 12.0
80 164.0 76.0 191.0 25.0 75.0 32.0 210.0 40.0 16.0
100 202.0 100.0 235.0 32.0 90.0 32.0 235.0 40.0 10.0
150 284.0 149.0 316.0 32.0 100.0 32.0 280.0 40.0 30.0
200 354.0 196.0 394.0 39.0 110.0 40.0 325.0 45.0 36.0
250 430.0 246.0 * Refer to note 40.0 363.0 45.0 42.0
300 493.0 292.0 40.0 395.0 45.0 50.0
350 515.0 320.0 40.0 410.0 45.0 55.0
400 570.0 366.0 50.0 443.0 45.0 65.0
450 635.0 412.0 50.0 485.0 45.0 70.0
500 695.0 460.0 60.0 520.0 45.0 80.0
600 835.0 552.0 60.0 615.0 50.0 95.0

 

Stirlings Australia produces spectacle blinds,spades and spacers in the following grades:  

spec-blind

 

Suit Pipework Inches mm A in mm B in mm C in mm
  ½” 15 44 13 11
  ¾” 20 x x 11
  1” 25 64 21 11
  1.1/2” 40 83 34 11
  2” 50 102 47 11
  3” 80 134 72 11
  4” 100 172 96 11
  6” 150 219 146 19
  8” 200 276 193 19
  10” 250 337 250 28
  12” 300 406 290 26

 

Stainless Steels: 304/304L,316/316L,310S,321,317L,347/347H.  

Duplex: 2205,UNS31803  

Super Duplex: 2507,UNS32750,UNS32760,UNS31254.  

Nickel Alloys: Alloy 200/201,Alloy 400,Alloy 600,Alloy 825,Alloy 800HT,Alloy c276,904L (Uns8904) Alloy 625.