JIS B2220 20K Flange

JIS20K LTB DRILLING DATA
NOMINAL PIPE SIZE OUTSIDE
DIAMETER OF
FLANGE
THIKNESS OF
FLANGE
THIKNESS OF
BLIND
BOSSED
LENGTH
SOH.SW LI
WELD NECK
LENGTH
PITCH CIRCLE
DIAMETER
NUMBER OF
BOLT HOLES
BOLT HOLE
DIAMETER
MM INCH C T T1 L L1 PCD # H
10 3/8 90 14 14 20 33 65 4 15
15 1/2 95 14 14 20 34 70 4 15
20 3/4 100 16 16 22 36 75 4 15
25 1 125 16 16 24 38 90 4 19
32 1 1/4 135 18 18 26 41 100 4 19
40 2 1/2 140 18 18 26 41 105 4 19
50 2 155 18 18 26 42 120 8 19
65 2 1/2 175 20 20 30 48 140 8 19
80 3 200 22 22 34 51 160 8 23
90 3 1/2 210 24 24 36 54 170 8 23
100 4 225 24 24 36 58 185 8 23
125 5 270 26 26 40 64 225 8 25
150 6 305 28 28 42 73 260 12 25
200 8 350 30 30 46 77 305 12 25
250 10 430 34 34 52 87 380 12 27
300 12 480 36 36 56 94 430 16 27
350 14 540 40 40 62 110 480 16 33
400 16 605 46 46 70 123 540 16 33
450 18 675 48 48 78 134 605 20 33
500 20 730 50 50 84 136 660 20 33
550 22 795 52 52 90 143 720 20 39
600 24 845 54 56 96 149 770 24 39