T/CISA 457-2024 High-strength ductile iron pipes and accessories
T/CISA 457-2024 High-strength ductile iron pipes and accessories
Basic Information
Scope
Main technical content: This document specifies the technical requirements, testing methods, inspection rules, and quality certificates for high-strength nodular cast iron pipes and accessories. This document is applicable to high-strength nodular cast iron pipes (hereinafter referred to as pipes) and their matching accessories, which are processed by any type of casting process or assembled from cast iron components and include sockets, plugs, or flanges with a size range of DN80 to DN3000 and a fluid temperature of 0℃ to 130℃. The pipes are generally delivered in a coated state both internally and externally. The scope of application of the pipes and accessories is as follows: — Used in fields such as water supply and drainage, water diversion and transfer, and municipal heating; — For pressurized or non-pressurized transmission; — For underground or aboveground installation.