Face to Face dimensions of flanged valves

ASME B16.10 Class 2500

OTHER PRESSURE CLASSES

2500

NPS	Gate Solid Wedge Double Disc Conduit Long Pattern	Plug Regular Pattern	Globe Lift Check Swing Check Long Pattern	Ball Long Pattern
1/2	264 (1)		264
3/4	273 (1)		273
1	308 (1)	308	308
1.1/4	349 (1)		349
1.1/2	384 (1)	384	384
2	451	451	451	451
2.1/2	508	508	508	508
3	578	578	578	578
4	673	673	673	673
5	794	794	794
6	914	914	914	914
8	1022	1022	1022	1022
10	1270	1270	1270	1270
12	1422	1422	1422	1422

Note..

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.