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Ductile iron pipe selection recommendations and standards

by:XEX     2020-12-17
Ductile iron pipe selection Suggestions and standard 1. Relevant standard drawing 03 ss505 the flexible interface water supply pipeline piers choose proposal 1 to the ductile iron pipes should be selected according to the installation, choose the interface form of straight pipe and fittings. 2 recommended use epdm rubber circle and so on. 3 the choice of coating: according to the use of internal and external conditions to choose suitable and coating. Existing internal coating for interior and exterior coating epoxy resin, resin, PE film coating ductile iron pipes such as new products, when choosing products should learn more about its performance standards GB/T 13295 - 2003 water and gas pipeline using ductile iron pipes, pipe fittings and accessories of GB/T 17457 - 1998 nodular casting' target='_blank'>cast iron pipe cement mortar centrifugation lining of GB/T 17458 - general requirements 1998 nodular cast iron pipe cement mortar centrifugation lining of new mixing mortar test GB/T 17459 - ingredients GB/T 17456 1998 nodular cast iron pipe asphalt coating nodular cast iron pipe appearance of GB/T 17219 - spraying zinc 1998 ShuPeiShui equipment and protective materials for domestic and drinking water safety evaluation standard of 2. Engineering standards of the building water supply and drainage and heating engineering construction quality acceptance specification 'GB50242 - 2002
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