Pipelines 2018
The New Interactive AWWA M11—Flange Bolt Torque Calculator—A Technical Guide to Its Background, Relevance, and Use
Publication: Pipelines 2018: Planning and Design
ABSTRACT
The sequence of tightening bolts and controlling torque are very important to the assembly of flanged pipe joint connections. Among other factors, proper-flanged joint closure depends on applying the correct amount of gasket load and achieving uniform load around the joint. Since the load applied to the joint by the bolts is difficult to measure directly, torque is used as a convenient way to approximate the desired load. This paper will review torque calculations as they apply to ANSI/AWWA C207 flanges and the new AWWA web-based interactive tool, including examples for torque calculations as described in the recently published, AWWA Manual M11, Steel Pipe—A Guide for Design and Installation, 5th Edition.
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REFERENCES
ASME (The American Society of Mechanical Engineers). (2013a) Guidelines for Pressure Boundary Bolted Flange Joint Assembly, ASME PCC-1-2013, ASME, New York, NY.
AWWA (American Water Works Association). (2018) Steel Pipe Flanges for Waterworks Service, Sizes 4 In. Through 144 In. (100 mm Through 3,600 mm), ANSI/AWWA C207-13. AWWA, Denver, CO.
AWWA (American Water Works Association). (2017a) Steel Pipe - A Guide for Design and Installation, AWWA Manual of Water Supply Practices M11. Fifth Edition. AWWA, Denver, CO.
AWWA (American Water Works Association). (2017b) Installation of Buried Steel Water Pipe - 4 In. (100mm) and Larger, ANSI/AWWA C604-17. Denver, CO.
AWWA (American Water Works Association). (2017c) “AWWA Interactive Torque Calculation Tool”, http://www.AWWA.org/TorqueCalcs. AWWA, Denver, CO.
Bickford, J. H. (1995). An Introduction to the Design and Behavior of Bolted Joints. Boca Raton, FL. CRC Press.
Brown, W., L. Marchand, and T. LaFrance (2006). Bolt Anti-Seize Performance in a Process Plant Environment, New York, NY. ASME Pressure Vessel Research Council, PVP2006-ICPVT11-93072.
Cooper, W., and T. Heartwell (2011). Variables Affecting Nut Factors for Field Assembled Joints. New York, NY. ASME Pressure Vessels and Piping Conference, PVP2011-57197.
Information & Authors
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Published In
Pipelines 2018: Planning and Design
Pages: 122 - 127
Editors: Christopher C. Macey, AECOM and Jason S. Lueke, Ph.D., Associated Engineering
ISBN (Online): 978-0-7844-8164-6
Copyright
© 2018 American Society of Civil Engineers.
History
Published online: Jul 11, 2018
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