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Class 400 Intermediate Connection Flanges

Intermediate Connection Angle note

Intermediate Barrel-I1-.25

Intermediate Barrel-I2-.25

Intermediate Barrel-I3-.25

(Click any image above to enlarge it and lock it in place, then scroll to the bottom table for dimensions)
Size Flange Barrel OD Bolting Nut Stud Bolt Weights Length
Nom Bore OD Thk. RF
OD		 I 1 I 2 I 3 No . of
Holes		 Hole
Size		 Bolt
Circle		 Stop
Dia.		 Relief
Dia.		 Relief
Length		 Size RF
Length		 RTJ
Length		 I 1 I 2 I 3 Base
B 0 T R D D D C NS NR NL Base Per 1″ Base Per 1″ Base Per 1’ L
1 0.96 4.88 0.69 2.00 2.75 3.25 4.00 4 0.75 3.50 2.44 2.12 0.88 5/8 3 1/2 3 1/2 20 1.5 27 2.2 39 3.4 12
1 1/2 1.50 6.12 0.88 2.88 4.00 4.62 5.50 4 0.88 4.50 3.25 2.75 1.00 3/4 4 1/4 4 1/4 39 3.1 51 4.3 69 6.2 12
2 1.94 6.50 1.00 3.62 4.62 5.50 6.00 8 0.75 5.00 3.94 3.31 0.88 5/8 4 1/4 4 1/4 49 3.9 69 5.9 95 8.9 12
2 1/2 2.32 7.50 1.12 4.12 5.75 6.00 6.38 8 0.88 5.88 4.62 3.94 1.00 3/4 4 3/4 4 3/4 73 6.2 81 6.8 90 7.8 12
3 2.90 8.25 1.25 5.00 6.00 6.38 7.00 8 0.88 6.62 5.38 4.62 1.00 3/4   5   5 79 6.1 89 7.2 106 9 12
3 1/2 3.36 9.00 1.38 5.50 7.00 7.75 8.25 8 1.00 7.25 5.81 5.25 1.12 7/8 5 1/2 5 1/2 106 8.4 128 11 145 13 12
4 3.83 10.00 1.38 6.19 7.00 7.75 8.88 8 1.00 7.88 6.44 5.75 1.12 7/8 5 1/2 5 1/2 104 7.6 126 10 165 14 12
5 4.81 11.00 1.50 7.31 8.25 8.88 9.88 8 1.00 9.25 7.81 7.00 1.12 7/8 5 3/4 5 3/4 135 10 157 12 195 17 12
6 5.76 12.50 1.62 8.50 9.88 10.38 11.00 12 1.00 10.62 9.19 8.12 1.12 3 7/8  6  6 188 14 208 17 235 20 12
8 7.62 15.00 1.88 10.62 12.12 13.50 14.25 12 1.12 13.00 11.38 10.25 1.25 1 6 3/4 6 3/4 259 20 327 28 366 32 12
10 9.56 17.50 2.12 12.75 14.25 15.12 16.25 16 1.25 15.25 13.44 12.62 1.38 1 1/8 7 1/2 7 1/2 431 25 502 31 594 38 16
12 11.38 20.50 2.25 15.00 16.25 17.38 18.25 16 1.38 17.75 15.75 14.75 1.50 1 1/4  8  8 539 30 641 38 724 45 16
14 14.00 23.00 2.38 16.25 19.38 20.12 22.25 20 1.38 20.25 18.25 16.75 1.50 1 1/4 8 1/4 8 1/4 690 40 768 47 974 67 16
16 16.00 25.50 2.50 18.50 22.25 23.25 24.12 20 1.50 22.50 20.31 19.00 1.62 1 3/8 8 3/4 8 3/4 887 53 980 63 1078 73 16
18 18.00 28.00 2.62 21.00 24.12 25.12 26.75 24 1.50 24.75 22.56 21.00 1.62 1 3/8  9  9 982 57 1102 68 1284 87 16
20 20.00 30.50 2.75 23.00 26.75 27.75 29.25 24 1.62 27.00 24.63 23.12 1.75 1 1/2 9 1/2 9 3/4 1176 70 1283 82 1476 101 16
24 24.00 36.00 3.00 27.25 30.75 32.00 33.62 24 1.88 32.00 29.25 27.62 2.00 1 3/4 10 1/2 11 1437 82 1614 100 1844 123 16