Standards for rubber-lined steel pipes and fittings
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Dear experts: In the HG21501-1993 standard for lined steel pipes and fittings, specifications are only provided for lined pipes and fittings with a maximum DN of 500. So what is the manufacturing standard for lined pipes and fittings with a diameter larger than DN500? I would appreciate your advice.
This post was last edited by COLORZERO on 2017-6-13 10:45. What is the selection series for standard HGT 20538-2016 lined steel pipes and fittings? Oh, I misread it; it’s lined with rubber
This post was last edited by nj1952 on 2017-7-6 at 18:12. For rubber lining installation, the larger the pipe diameter, the easier the installation process is. Your question concerns only pipe size issues: (1) The pipe sizes shall be determined in accordance with HG/T 20553-2011 \"Series for the Selection of Sizes of Seamless and Welded Steel Pipes for Chemical Industry Use\". (2) The technical requirements for rubber lining shall still follow HG 21501-1993 \"Rubber-Lined Steel Pipes and Fittings\" or HG/T 20677-2013 \"Design Code for Rubber-Lined Chemical Equipment\". Note: The scope of HG/T 20677-2013 \"Design Code for Rubber-Lined Chemical Equipment\" includes pipes and fittings