Gas hoses can generally be used for several years.

According to GB29993 "Technical Conditions of Rubber and Plastic Hoses and Hose Components for Household Gas", the storage life of rubber and plastic hoses shall not exceed 1 year, and the service life shall not exceed 3 years. That is to say, no matter whether the hoses are old or new, as long as they are used for 3 years, they need to be replaced with new ones to ensure the safe use of gas. Gas hose is a kind of flexible pipeline used to transport natural gas, coal-to-gas or liquefied petroleum gas. The double-layer structure tube is used as the matrix, and the surface of the matrix is covered with a smooth surface, and the joint surface between the layers of the hose is made into a concave-convex structure. The purpose of this design is to enhance the strength of the hose, prolong its service life, improve product quality, delay aging and prevent fading.