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NPSBall
Long Pattern
Ball
Short Pattern
Gate
Solid Wedge
Double Disc
Gate
Solid Wedge
Double Disc
Conduit
Plug
Short
Venturi Pattern
1/2140140140 (1)
3/4152152152 (1)
1165165165 (1)159 (2)
178178178 (1)
190190190190 (2)
2216216216216216
241241241241241
3282282282282282
4305305305305305
5381381
6403403403403403
8502419419419419
10568457457457457
12648502502502502
14762572572762762 (3)
16838610610838838 (3)
18914660660914914 (3)
20991711711991991 (3)
22109210921092 (3)
24114381378711431143 (3)
26124512451245 (3)
28134613461346 (3)
30139713971397 (3)
32152415241524 (3)
34162616261626 (3)
36172717271727 (3)

Other Pressure Classes

NPSPlug
Regular
Pattern
Plug
Round Port
Full Bore
Globe
Lift Check
Swing Check
1/2152
3/4178
1190203216
216229
241229241
2282267267
330292292
3387318318
4457356356
5400400
6403559444444
8502686559533
10568826622622
12711965711711
14762838
16838864
18914978
209911016
2210921118
2411431346
2612451346
2813461499
3013971594
321524
341626
3617272083

Notes:

(1) Solid wedge only
(2) Short Pattern only
(3) Venturi Pattern only

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.
via:http://www.wermac.org/valves/dim_valves_ff_300.html