Dimensions of Butterfly valve Class 300 Double Flanged.
All dimensions are in "mm" unless noted otherwise.
Dimensions and images are taken from Flowserve Catalogue.

Butterfly Valve

Size
NPS (in)
H H1 H2 H3 H4 Ød Øg O.D A B ØW ØF t L B.C.D Øh n N T UNC/UN
3 501 135 150 216 140 56 127 210 176 49 160 17.5 29 180 168.3 22.0 4 8 3/4"x10
4 657 165 180 312 190 76 158 225 230 71 280 23.9 33 190 200.0 22.0 4 8 3/4"x10
6 729 202 215 312 190 124 216 320 230 71 280 28.7 37 210 269.9 22.0 8 12 3/4"x10
8 809 242 255 312 190 174 270 380 230 71 280 31.7 42 230 330.2 25.4 8 12 7/8"x9
10 961 277 290 394 220 224 324 445 230 71 280 40 48 250 387.4 28.5 12 16 1"x8
12 1044 320 330 394 220 272 381 520 310 106 384 42 52 270 450.9 32.0 12 16 1 1/8"x8
14 1114 355 365 394 220 318 413 585 310 106 384 48 52 290 514.4 32.0 16 20 1 1/8"x8
16 1174 385 395 394 220 366 470 650 310 106 384 55 58 310 571.5 35.0 16 20 1 1/4"x8
18 1283 430 440 413 250 416 533 710 360 137 406 65 62 330 628.6 35.0 20 24 1 1/4"x8
20 1353 465 475 413 250 466 584 775 360 137 406 65 64 350 685.8 35.0 20 24 1 1/4"x8
24 1595 540 550 505 240 565 692 914 390 211 600 80 70 390 812.8 41.0 20 24 1 1/2"x8