Dimension of Class 150 Full Face Gaskets - ASME B16.47 Series B Flanges

Expired

Dimensions of Class 150 Full Face Gaskets (above 24 inches) as per ASME B16.21 to Suit ASME B16.47 Series B Flanges.

Full Face Gasket Dimensions

Nominal
Pipe Size
(NPS)		 Inside Diameter
(ID)		 Outside Diameter
(OD)		 No. of Bolt
Holes		 Bolt Hole
Diameter
(inches)		 Bolt Circle Diameter
(BCD)
inches mm inches mm inches mm
26 26.00 660 30.94 786 36 0.88 29.31 744.5
28 28.00 711 32.94 837 40 0.88 31.31 795.3
30 30.00 762 34.94 887 44 0.88 33.31 846.1
32 32.00 813 37.06 941 48 0.88 35.44 900.2
34 34.00 864 39.56 1005 40 1.00 37.69 957.3
36 36.00 914 41.63 1057 44 1.00 39.75 1009.7
38 38.00 965 44.25 1124 40 1.13 42.13 1070.1
40 40.00 1016 46.25 1175 44 1.13 44.13 1120.9
42 42.00 1067 48.25 1226 48 1.13 46.13 1171.7
44 44.00 1118 50.25 1276 52 1.13 48.13 1222.5
46 46.00 1168 52.81 1341 40 1.25 50.56 1284.2
48 48.00 1219 54.81 1392 44 1.25 52.56 1335.0
50 50.00 1270 56.81 1443 48 1.25 54.56 1385.8
52 52.00 1321 58.81 1494 52 1.25 56.56 1436.6
54 54.00 1372 61.00 1549 56 1.25 58.75 1492.3
56 56.00 1422 63.00 1600 60 1.25 60.75 1543.1
58 58.00 1473 65.94 1675 48 1.38 63.44 1611.4
60 60.00 1524 67.94 1726 52 1.38 65.44 1662.2
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