Dimensions of Grooved (Camprofile) Gaskets ASME B16.20

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Dimensions of Grooved (Camprofile) Gaskets ASME B16.20 to be used with Raised Face flanges ASME B16.5

Grooved Gaskets

Class 150# to 400#

NPS d1 d2 d3
150# 300# 400#
1/2 23 33.3 44.4 50.8 50.8
3/4 28.6 39.7 53.9 63.5 63.5
1 36.5 47.6 63.5 69.8 69.8
44.4 60.3 73 79.4 79.4
52.4 69.8 82.5 92.1 92.1
2 69.8 88.9 101.6 108 108
82.5 101.6 120.6 127 127
3 98.4 123.8 133.4 146.1 146.1
111.1 136.5 158.8 161.9 158.7
4 123.8 154 171.5 177.8 174.6
5 150.8 182.6 193.7 212.7 209.5
6 177.8 212.7 219.1 247.7 244.5
8 228.6 266.7 276.2 304.8 301.6
10 282.6 320.7 336.5 358.8 355.6
12 339.7 377.8 406.4 419.1 415.9
14 371.5 409.6 447.7 482.6 479.4
16 422.3 466.7 511.2 536.6 533.4
18 479.4 530.2 546.1 593.7 590.5
20 530.2 581 603.2 650.9 644.5
24 631.8 682.6 714.4 771.5 765.2
NPS d1 d2 150# 300# 400#
d3

Class 600# to 2500#

Grooved Gaskets

NPS d1 d2 d3
600# 900# 1500# 2500#
1/2 23 33.3 50.8 60.3 60.3 66.7
3/4 28.6 39.7 63.5 66.7 66.7 73
1 36.5 47.6 69.8 76.2 76.2 82.5
44.4 60.3 79.4 85.7 85.7 101.6
52.4 69.8 92.1 95.2 95.2 114.3
2 69.8 88.9 108 139.7 139.7 142.8
82.5 101.6 127 161.9 161.9 165.1
3 98.4 123.8 146.1 165.1 171.5 193.7
111.1 136.5 158.7
4 123.8 154 190.5 203.2 206.4 231.7
5 150.8 182.6 238.1 244.5 250.8 276.2
6 177.8 212.7 263.5 285.8 279.4 314.3
8 228.6 266.7 317.5 355.6 349.3 384.1
10 282.6 320.7 369.9 431.8 431.8 473
12 339.7 377.8 454 495.3 517.5 546.1
14 371.5 409.6 488.9 517.5 574.7
16 422.3 466.7 561.9 571.5 638.1
18 479.4 530.2 609.6 635 701.7
20 530.2 581 679.5 695.3 752.4
24 631.8 682.6 787.4 835 898.5
NPS d1 d2 600# 900# 1500# 2500#
d3

General notes:

  1. Dimensions are in millimeters unless otherwise indicated.
  2. Images shows Grooved Gaskets with Covering Layer and Centering Ring.
  3. d1 = Inside diameter.
  4. d2 = Outside diameter.
  5. d3 = Outside diameter of centering ring.
  6. Thickness (t) specified by customer.

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