National implementation standard of ppr ball valve

GBT 18742. According to the query of polypropylene piping system for cold and hot water, this standard specifies the requirements of materials, design, manufacture, test methods, inspection rules, marks, packaging, transportation and storage of polypropylene piping system for cold and hot water, aiming at ensuring the product quality and ensuring the safe use in the building cold and hot water supply system. PPR ball valve, also known as random copolymer polypropylene ball valve, is a valve product made of PPR material.