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)
300 521 181 289 211
350 584 222 318 269
400 648 232 365 350
450 711 264 409 440
500 775 292 454 488
600 914 318 562 686
750 1092 368 730 1406
900 1270 483 864 2109
1050 1289 568 1041 3932
1200 1467 629 1193 4513
1350 1657 692 1308
1500 1809 826 1422