IS 1538-1976 (PART V)

Nominal

Diameter (DN)

 D g a b c s C Holes

Diameter

of Bolts
No. d
80 200 133 24 12 3 43 13 160 4 19 16
100 220 153 25 22 3 45 13.5 480 8 19 16
125 250 183 25.5 22.5 3 47.5 14.5 210 8 19 16
150 285 209 26.0 23 3 50 15 240 8 23 20
200 340 264 27.5 24.5 3 55 16.5 295 8 23 20
250 395 319 29 26 3 60 18 350 12 23 20
300 445 367 31.5 27.5 4 65 19.5 400 12 23 20
350 505 427 33 29 4 70 21 460 16 23 20
400 565 477 34 30 4 75 22.5 515 16 28 24
500 670 582 37 33 4 85 25.5 620 20 28 24
600 780 682 41 36 5 95 28.5 725 20 31 27
700 895 797 43.5 38.5 5 105 31.5 840 24 31 27
800 1015 904 46.5 41.5 5 115 34.5 950 24 34 30
900 1115 1004 49 44 5 125 37.5 1050 28 34 30
1000 1230 1111 52 47 5 135 40.5 1160 28 37 33
1100 1340 1221 55 50 5 145 43.5 1270 32 37 33
1200 1455 1328 58 53 5 155 46.5 1380 32 40 36
1500 1800 1745 66 61 5 185 55.5 1710 40 43 39

Note: All Dimensions are in millimeters. Dimensions are not to scale.

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