Is ppr pipe can be use for gas piping system?

No, PPR (Polypropylene Random Copolymer) pipe is not suitable for gas piping systems. It is primarily designed for hot and cold water distribution and is not approved for transporting gas due to its inability to withstand the pressures and potential chemical reactions associated with gas. For gas piping, materials like steel, copper, or specific types of plastic such as polyethylene (PE) are recommended. Always consult local regulations and codes for proper materials in gas applications.