Face to Face Dimensions
VALVE
SIZE 		ANSI MSS
Rubber Lined
Plastic Lined
Unlined		 Unlined Plastic Lined Rubber Lined
1/2 5 - - -
3/4 5 5 - 1/2 5 - 3/4  5 - 3/4
1 5 5 - 1/2 5 - 3/4  5 - 3/4
1 - 1/2 7 6 - 1/2 6 - 7/8 6 - 3/4
2 7 7 - 1/2 7 - 7/8 7 - 3/4
2 - 1/2 8 8 - 1/2 8 - 7/8 8 - 3/4
3 8 10 10 - 1/4 10 - 1/4
4 9 12 - 1/2 12 - 7/8 12 - 3/4
6 10 - 1/2 16 16 - 3/8 16 - 3/8
8 11 - 1/2 20 - 1/2 20 - 7/8 20 - 7/8

Dimensions in inches

Note: ANSI face to face valves interchange with most gate, plug & ball valves.
MSS face to face valves interchange with most other brands of diaphragm valves like: ITT, Saunders, McCanna, etc.
Tolerances: unlined +/- 1/16", lined +/- 1/8".
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