ASTM F681-82(2004)
(Practice)Standard Practice for Use of Branch Connections
Standard Practice for Use of Branch Connections
ABSTRACT
This practice lists commonly used types of branch connections for carbon steel, chromium-molybdenum steel pipe and copper-nickel alloy tubing. The branch to run size applications are presented in details. The weld joint designs, fabricated branch connections and threaded fittings shall meet the requirements prescribed.
SCOPE
1.1 This practice lists commonly used types of branch connections for carbon steel, chromium-molybdenum steel pipe and copper-nickel alloy tubing. Branch to run size applications are given in Table 1, Table 2, and Table 3 . Other types of branch connections (Fig. 1) may be used provided they comply with the requirements of Title 46 CFR Subparts 56.07-10(f) and 56.70-15(g) of the USCG Regulations.
General Information
Relations
Standards Content (Sample)
NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
An American National Standard
Designation:F 681–82 (Reapproved 2004)
Standard Practice for
Use of Branch Connections
This standard is issued under the fixed designation F 681; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope 2.2 ANSI Standard:
B31.1 Power Piping
1.1 This practice lists commonly used types of branch
2.3 Other Document:
connections for carbon steel, chromium-molybdenum steel
Title 46 Code of Federal Regulations (CFR) Shipping, Parts
pipe and copper-nickel alloy tubing. Branch to run size
41 to 69
applications are given in Table 1, Table 2, and Table 3. Other
typesofbranchconnections(Fig.1)maybeusedprovidedthey
3. General Requirements
comply with the requirements of Title 46 CFR Subparts
3.1 Weld joint designs shall be in accordance with Specifi-
56.07-10(f) and 56.70-15(g) of the USCG Regulations.
cation F 722 and the limitations therein.
2. Referenced Documents 3.2 Fabricated branch connections shall meet the reinforce-
2 mentrequirementsofSection104.3ofANSIB31.1asmodified
2.1 ASTM Standards:
by Title 46, CFR Subparts 56.07-10(f) and 56.70-15(g) of the
F 722 Specification for Welded Joints for Shipboard Piping
USCG regulations.
Systems
3.3 Threaded fittings shall be subject to the limitations of
Title 46 CFR, Subpart 56.30-20 of the USCG Regulations.
4. Keywords
This practice is under the jurisdiction of ASTM Committee F25 on Ships and
4.1 branch connnections; carbon steel connections;
Marine Technology and is the direct responsibility of Subcommittee F25.11 on
Machinery and Piping Systems.
chromium-molybdenum steel pipe; copper-nickel alloy tubing
Current edition approved Nov. 1, 2004. Published November 2004. Originally
approved in 1980. Last previous edition approved in 1998 as F 681 – 82 (1998).
2 3
For referenced ASTM standards, visit the ASTM website, www.astm.org, or Available from American National Standards Institute (ANSI), 25 W. 43rd St.,
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM 4th Floor, New York, NY 10036.
Standards volume information, refer to the standard’s Document Summary page on Available from Standardization Documents Order Desk, Bldg. 4 Section D, 700
the ASTM website. Robbins Ave
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