ASME B16.5-2013 pdf free

ASME B16.5-2013 pdf free.Pipe Flanges and Flanged Fittings.
ASME B16.5 covers pressure—temperature ratings, materials, dimensions, tolerances, marking, testing, and methods of designating openings for pipe flanges and flanged fittings. Included are
(1) flanges with rating class designations 150, 300, 400, 600, 900, and 1500 in sizes NPS through NI’S 24 and flanges with rating class designation 2500 in sizes NI’S through NI’S 12, with requirements given in both metric and US. Customary units with diameter of bolts and flange bolt holes expressed in inch units
(2) flanged fittings with rating class designation 150 and 300 in sizes NI’S through NI’S 24, with requirements given in both metric and US. Customary units with diameter of bolts and flange bolt holes expressed in inch units
(3) flanged fittings with rating class designation 400, 600. 900, and 1500 in sizes NI’S 3 through NPS 24 and flanrd fittings with rating class designation 2500 in sizes through NS 12 that are acknowledged in Nonmandatory Appendix E in which only U.S. Customary units are provided
(b) This Standard is limited to
(1) flanges and flanged fittings made from cast or forged materials
(2) blind flanges and certain reducing flanges made from cast, forged, or plate materials
Also included in this Standard are requirements and recommendations regarding flange bolting, gaskets, and joints.
1.2 References
Codes, standards, and specihcations, containing provisions to the extent referenced herein, constitute requirements of this Standard, These reference documents are listed in Mandatory Appendix III.
1.3 Time of Purchase, Manufacture, or Installation
The pressure—temperature ratings in this Standard are applicable upon its publication to all flanges and flanged fittings within its scope, which otherwise meet its requirements. For unused flanges or flanged fittings maintained in inventory, the manufacturer of the flange or flanged fittings may certify conformance to this Edition, provided that it can be demonstrated that all requirements of this Edition have been met. Where such components were installed in accordance with the pressure—temperature ratings of an earlier edition of this Standard, those ratings are applicable except as may be governed by the applicable code or regulation.
1.4 User Accountability
This Standard cites duties and responsibilities that are to be assumed by the flange or flanged fitting user in the areas of, for example, application, installation, system hydrostatic testing, operation, and material selection.
1.5 Quality Systems
Requirements relating to the product manufacturer’s Quality System Program are described in Nonmandatory Appendix D.
1.6 Relevant Units
This Standard states values in both SI (Metric) and U.S. Customary units. As an exception, diameter of bolts and flange bolt holes are expressed in inch units only. These systems of units are to be regarded separately as standard, Within the text, the U.S. Customary units are shown in parentheses or in separate tables that appear in Mandatory Appendix II. The values stated in each system are not exact equivalents; therefore, it is required that each system of units be used independently of the other. Except for diameter of bolts and flange bolt holes, combining values from the two systems constitutes nonconformance with the Standard.
1.7 Selection of Materials
Criteria for selection of materials suitable for particular fluid service are not within the scope of this Standard.
1.8 Convention
For determining conformance with this Standard, the convention for fixing significant digits where limits (maximum and minimum values) are specified shall be as defined in ASTM E29. This requires that an observed or calculated value be rounded off to the nearest unit in the last right-hand digit used for expressing the limit. Decimal values and tolerances do not imply a particular method of measurement.ASME B16.5 pdf free download.