ANSI CSA AM Z21.80A-2012 CSA 6.22A-2012 Line Pressure Regulators.pdf

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1、NOTE: Changes, other than editorial, are denoted by a vertical line in the margin.Approved August 10, 2012 by American National Standards Institute, Inc.Approved August 9, 2012 by Interprovincial Gas Advisory Council. Effective in Canada January 1, 2014.Standards DeveloperCSA America, Inc. Canadian

2、Standards AssociationOperating as “CSA Group” Operating as “CSA Group”8501 East Pleasant Valley Road 5060 Spectrum Way, Suite 100Cleveland, Ohio 44131 Mississauga, Ontario, Canada L4W 5N6Published - September 2012 Page 1 of 1Copyright 2012CSA GroupPermission is granted to republish material herein i

3、n laws or ordinances, and in regulations, administrative orders, or similar documents issued by public authorities. Those desiring permission for other republication should consult Canadian Standards Association, operating as CSA Group, at 5060 Spectrum Way, Suite 100, Mississauga, Ontario, Canada L

4、4W 5N6.Copyright 2012CSA GroupPermission is granted to republish material herein in laws or ordinances, and in regulations, administrative orders, or similar documents issued by public authorities. Those desiring permission for other republication should consult CSA America, Inc., operating as CSA G

5、roup, at 8501 East Pleasant Valley Road, Cleveland, Ohio 44131.Addenda to the Fourth EditionANSI Z21.80-2011 CSA 6.22-2011American National Standard/CSA Standard forLine pressure regulators ANSI Z21.80a-2012CSA 6.22a-2012Part I: Construction1.4 Connections1.4.6Standard flange connections, when provi

6、ded, shall be constructed in accordance with the dimensional specifications for 125-pound cast-iron flanges of the Standard for Cast-Iron Pipe Flanges and Flanged Fit-tings, Class 25, 125, 250 and 800, ANSI/ASME B16.1. (See Figure 1, 125-Pound Cast-Iron Pipe Flange Body Connections.)Standard steel flange connections, when provided, shall be constructed in accordance with the dimensional specifications in the Standard for Pipe Flanges and Flanged Fittings, ANSI/ASME B16.5.

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