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

Butterfly Valve

Series B (Flange Rating: API 605)
Size
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
26 1545 510 530 505 240 613 737 870 390 211 600 80 91 410 876.3 35.0 24 32 1 1/4"x8
28 1685 585 595 505 280 665 788 922 490 343 600 100 91 430 939.8 35.0 28 36 1 1/4"x8
30 1745 615 625 505 280 715 846 992 490 343 600 100 94 450 997.0 38.0 28 36 1 3/8"x8
32 1795 640 650 505 280 765 902 1056 490 343 600 120 104 470 1054.1 41.0 24 32 1 1/2x8
34 2064 700 690 674 350 812 954 1108 590 431 800 130 104 490 1104.9 41.0 28 36 1 1/2x8
36 2169 765 730 674 350 862 1010 1172 590 431 800 140 104 510 1168.4 44.5 24 32 1 5/8"x8