ASME B16.10-2009 pdf download.Face-to-Face and End-to-End Dimensions of Valves.
1 SCOPE 1.1 General 1.1.1 Application. This Standard covers face-to-face and end-to-end dimensions of straightway valves, and center-to-face and center-to-end dimensions of angle valves. Its purpose is to ensure installation interchange- ability for valves of a given material, type, size, rating class, and end connection. Face-to-face and center-to- face dimensionsapplytoflangedendvalves withfacings defined in para. 2.3.1 and to other valves intended for assembly between flat face or raised face flanges. End- to-end dimensions apply to grooved end, buttwelding end, and flanged end valves with facings defined in para. 2.3.3. Center-to-end dimensions applyto buttweld- ing end and to flanged end valves with facings defined in para. 2.3.3. 1.1.2 Data Source Reference. Throughout this Standard, data references are cited, e.g., “extracted from” and “compatible with.” These data are relevant to the reference standard in place at the date shown in the Foreword for American National Standards Institute approval of this Standard. 1.2 Standard Units The values stated in either millimeter units (Tables 1 through 10) or inch units 1 (Tables I-1 through I-10) are to be regarded separately as standard. Within the text, the inch units are shown in parentheses. The values stated in each system are not exact equivalents; there- fore, each system must be used independently of the other. Combining values from the two systems may result in nonconformance with the standard.
1.3 Cast Iron Valves Only flanged end valves (and others intended for assembly between flanges) are covered by this Standard. Mating dimensions and facings offlanged ends conform to those in ASME B16.1. Dimensional tables for various types and sizes of valves are specified in paras. 1.3.1 through 1.3.4. 1.3.1 Gate, Plug, and Check Valves (a) Class 125 — Tables 1 and I-1 (b) Class 250 — Tables 2 and I-2 1.3.2 Globe and Angle Valves (a) Class 125 — Tables 1 and I-1 (b) Class 250 — Tables 2 and I-2 1.3.3 Wafer Swing Check Valves (a) Class 125 — Tables 7 and I-7 (b) Class 250 — Tables 7 and I-7 1.3.4 Butterfly Valves (a) Class 25 — Tables 8 and I-8 (b) Class 125 — Tables 8 and I-8 1.4 Ductile Iron Valves Only flanged end valves (and others intended for assembly between flanges) are covered. Mating dimen- sions and facings of flanged ends conform to those in ASME B16.42. Valves are rated Class 150 and Class 300. The following cast iron and steel dimensional tables are also used for ductile valves: (a) Class 150 — Tables 1 and I-1 (b) Class 300 — Tables 2 and I-2 1.5 Steel and Alloy Valves This category includes carbon, alloy, and stainless steels, and the nonferrous materials listed in ASME B16.34. It includes flanged, buttwelding, and grooved ends, as well as the types of valves intended for assembly between flanges. Mating dimensions and facings of flanged ends conform to those in ASME B16.5, ASME B16.47, Series A, or MSS SP-44. [For flanged end butterfly valves, refer to Note (2) of Table 8 (Table I-8) for flange information.] For flangeless or wafer valves intended for assembly between flanges, refer to Tables 7 and 8 (Tables I-7 and I-8) for flange information.
2.1.3 Reduced Port Valves (a) Reduced port, gate, and ball valves conforming to API 6D are designated for size by two numbers, the first being the NPS on the valve ends, the second being the NPS of the port (seats, moving parts, etc.); e.g., NPS 6 ? 4 designates a valve of end size NPS 6 with a port to match NPS 4. These valves shall have face-to-face or end-to-end dimensions corresponding to valves having the same size end connections; i.e., a NPS 6 ? 4 valve shall have the face-to-face or end-to-end dimensions of a NPS 6 valve. (b) Reduced port, pressure seal bonnet, gate, globe, and check valves are designated for size by three num- bers, the first and last being the NPS of the valve ends, the second being the NPS of the port; e.g., NPS 6 ? 4 ? 6 designates a valve having ends matching NPS 6 with a port to match NPS 4. Likewise, NPS 6 ? 4 ? 4 would designate a valve having one end matching NPS 6, the other matching NPS 4, and the port matching NPS 4. These valves shall have face-to-face or end-to-end dimensions corresponding to valves having the same port size; i.e., either a NPS 6 ? 4 ? 6 or a NPS 6 ? 4 ? 4 valve shall have the face-to-face or end-to-end dimen- sions of a NPS 4 valve. 2.2 Pressure Rating Designations Class, followed by a dimensionless number, is the standardized designation for pressure temperature- ratings used for valves. The numerical designations in use are as follows: (a) for cast iron: 25, 125, 250 (b) for ductile iron: 150, 300 (c) for steel: 2 150, 300, 600, 900, 1500, 2500