Face to Face dimensions of flanged valves

ASME B16.10 Class 900

OTHER PRESSURE CLASSES

900

NPS	Gate Solid Wedge Double Disc Conduit Long Pattern	Plug Regular Venturi Pattern	Plug Round Port Full Bore	Globe Lift Check Swing Check Long Pattern	Ball Long Pattern
3/4				229
1	254 (1)	254 (2)		254	254
1.1/4	279 (1)	279 (2)		279	279
1.1/2	305 (1)	305 (2)	356	305	305
2	368	368 (2)	381	368	368
2.1/2	419	419 (2)	432	419	419
3	381	381 (2)	470	381	381
4	457	457 (3)	559	457	457
5	559			559
6	610	610	737	610	610
8	737	737	813	737	737
10	838	838	965	838	838
12	965	965	1118	965	965
14	1029			1029	1029
16	1130	1130 (3)		1130 (4)	1130
18	1219			1219 (4)	1219
20	1321	1321 (3)		1321 (4)	1321
22
24	1549			1549 (4)	1549

Notes..

General notes..

Dimensions are in millimeters unless otherwise indicated.
The face-to-face dimension for flanged Valves is the distance between the extreme ends which are the gasket contact surfaces.
End-to-End dimensions apply to flanged Valves where the gasket contact surfaces are not located at the extreme ends of the Valve. The distance between the extreme ends is described as the end-to-end dimension and applies to flanged Valves like.. Ring Joint, large or small female and large or small groove.