Transcription of Piping codes, valve standards and ball valve selection
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Piping codes, valve standards and ball valve selection
Piping codes, valve standards and ball valve selection Ron Manson, March 2015 ENGINEERED & PROCESS VALVES valve Requirements for Piping Codes - 2 ASME - Power Piping , 2014 ASME - Process Piping , 2012 ASME - Pipeline Transportation Systems for Liquids and Slurries, 2012 ASME - Gas Transmission and Distribution Piping Systems, 2012 All the above codes list valves as a Piping component. See sections , , & respectively ASME - Power Piping , 2014 Listed valves (table ) - ASME - Valves Flanged, Threaded and Weld End MSS SP67 - Butterfly Valves MSS SP68 - High Pressure Butterfly Valves with Offset Design Note: the list excludes cast iron and bronze valves 107 VALVES General (A) Valves complying with the standards and specifications listed in Table shall be used within the specified pressure temperature ratings.
(2) Welding is not used on any ductile iron component in the fabrication of the valve shells or their assembly. (e) No valve having shell (body, bonnet, cover, and/or end flange) components made of cast iron, malleable iron, or ductile iron may be used …
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