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)
300 559 229 289 277
350 603 273 318 375
400 685 305 365 430
450 743 362 409 650
500 813 368 457 800
600 940 438 548 1250
750 1130 505 730 2300
900 1314 635 857 3450
1050 1403 701 1003 4529
1200 1594 787 914 5715