ASME B16.10-2017 pdf free
ASME B16.10-2017 pdf free.Face-to-Face and End-to-End Dimensions of Valves.
4 VARIATIONS OF LENGTH WITHIN A CLASS OF VALVES
4.1 Buttwelding End Valves
Tables I through 6 (Tables 1-I through 1-6) include end-to-end dimensions for valves having buttwelding ends. In many cases, the dimensions are different from those of face-to-lace dimensions of flanged valves, as evidenced by the differences between dimensions A and B of the tables.
Also see para. 24
4.1.1 Short Pattern. For pressure seal or flangeless
bonnet valves having huttwelding ends in Class 600 and higher, the regular end-to-end dimensions shall be equal to the short pattern dimensions shown in Tables 3 through 6 (Tables 1-3 through 1-6). At the manufacturer’s option, the end-to-end dimensions of these valves may be the same as the face-to-face dimensions of raised face flanged valves.
4.1.2 Long Pattern. For flanged bonnet valves having buttwelding ends in Class 600 and higher, the regular end-to-end dimensions shall be equal to the face-to-face dimensions of raised face flanged valves shown in Tables 3 through 6 (Tables 1-3 through 1-6). At the man Ufacturer’s option, the end-to-end dimensions may be the same as the short pattern end-to-end dimensions.
4.2 Narrow, Wide, and Extra Wide Designations
Certain butterfly valves are designated narrow, wide, or extra wide for the purpose of consolidating a diversity of manufacturer’s lengths into two or three sets of dimensions for a given size. At the manufacturer’s option, any of the two or three dimensions listed for a size may be used.
5 TOLERANCES
5.1 Straightway Valves
A tolerance of ±1.5 mm (±0.06 in.) shall be allowed on face-to-face and end-to-end dimensions of valves of NPS 10 and smaller, and a tolerance of ±3.0 mm (±0.12 in.) shall be allowed for NPS 12 and larger. For exceptions as related to wafer type and butterfly valves,see General Note (b) in Table 7 (Table I-7) and Notes (3) and (4) in Table 8 (Table I-8).
5.2 Angle Valves
The tolerances on center-to-face and center- to-end dimensions of angle type valves shall be one-half those listed in para. 5.1.ASME B16.10 pdf free download.
