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استاندارد ASME B16.10
فاصله لب تا لب شیرها
نسخه 2009
Face to Face
and
End to End
Dimensions of Valves
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 interchangeability for valves of a given material, type, size, rating class, and end connection. Face-to-face and center-to-face dimensions apply to flanged end valveswith facings
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 apply to buttwelding 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 AmericanNational Standards Institute approval of this Standard.
1.2 Standard Units The values stated in either millimeter units (Tables 1 through 10) or inch units1 (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; therefore, each system must be used independently of the other. Combining values from the two systems may result in nonconformance with the standard.
استاندارد ASME B16.10 در خصوص فاصله لب تا لب شیرها - نسخه 2009