All dimensions are in "mm" unless noted otherwise.
Dimensions and weights are taken from Crane Energy Catalogue.
Double flanged versions are available on larger size valves where the face to face dimension of the body permits installation of two heavy nuts between the flanges.
Dimension 'C' is the minimum flange bore required on the matching pipe.

Dual Plate Flanged Check Valve

Nominal Pipe
Size (NPS)
A B C Approx
Weight (kg)
200 343 127 194 42
250 406 146 243 86
300 483 181 289 140
350 533 184 318 160
400 597 191 381 225
450 635 203 428 250
500 699 219 480 300
600 813 222 575 389
750 984 305 743 687
900 1168 368 889 1145
1050 1346 432 1041 1888
1200 1511 524 1194 2667
1350 1683 539 1308
1500 1854 660 1422
1650 2032 787 1588
1800 2197 914 1727
1950 2286 991 1880
2100 2438 1067 2032