Tiêu chuẩn quốc tế

• Số hiệu / Standard Number: ASME B16.5:2003
• Năm ban hành / Publication date: 2003
• Tình trạng / Status: W - Hết hiệu lực
• Tên tiếng Anh / Title in English: Pipe Flanges and Flanged Fittings NPS 1/2 Through NPS 24 Metric/Inch Standard
• Thay thế bằng / Replaced by: ANSI ASME B16.5:2003
• Số trang / Page: 234

Phạm vi áp dụng / Scope of standard

(a) This Standard 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, 1500, and 2500 in sizes NPS 1⁄2 through NPS 24,
with requirements given in both metric and U.S. 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 NPS 1⁄2 through NPS 24, with requirements
given in both metric and U.S. Customary units with diameter of
bolts and flange bolt holes expressed in inch units

   (3) flanged fittings with rating class designation
400, 600, 900, 1500, and 2500 in sizes NPS 1⁄2 through NPS 24 that
are acknowledged in Annex G 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, flange gaskets, and
flange joints.