ASME B16.10:2017 pdf free download

ASME B16.10:2017 pdf free download
ASME B16.10:2017 pdf free download.Face-to-Face and End-to-End Dimensions of Valves
3.1.2 2 mm (0.06 in.) Raised Face. Flanges for Class 250 cast iron and for Classes 150 and 300 steel, alloy, and ductile iron valves have 2 mm (0.06 in.) raised faces, which are included in the face-to-face (or center- to-face) dimension. When Classes 150 and 300 valves are required with flat faces, either the full thickness of flange or the thickness with the 2 mm (0.06 in.) raised face removed may be furnished, unless otherwise speci- fied by the customer. Users are reminded that removing the 2 mm (0.06 in.) raised face will make the face-to- face dimension nonstandard.
3.3 Ring Joint Facings
The X dimension given in Table 10 (Table I-10), when added to the face-to-face dimension of a valve having raised face flanges in Tables 1 through 6 (Tables I-1 through I-6), establishes the end-to-end dimension for the valve having flanges with ring joint facings.
4 VARIATIONS OF LENGTH WITHIN A CLASS OF VALVES
4.1 Buttwelding End Valves
Tables 1 through 6 (Tables I-1 through I-6) include end-to-end dimensions for valves having buttwelding ends. In many cases, the dimensions are different from those of face-to-face dimensions of flanged valves, as evidenced by the differences between dimensions A and B of the tables. Also see para. 2.4.
4.1.1 Short Pattern.For pressure seal or flangeless bonnet valves having buttwelding 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 I-3 through I-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 hav- ingbuttweldingends inClass 600 andhigher, 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 manu- facturer’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, orextra wide for the purpose ofconsolidatinga 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.