The service life of valves is not regulated by national standards or industry standards due to their wide range of applications, diverse media, and varying corrosion conditions. In 1980, the Ministry of Machinery Industry aimed to improve the quality of mechanical industry products and match them with the national high-quality product evaluation.

The service life of valves has been established. Due to the wide range of valve applications, various media used, and varying corrosion conditions, there are no regulations on the service life of valves from national standards to industry standards. In 1980, in order to improve the quality of mechanical industry products and cooperate with the national high-quality product evaluation, the Ministry of Machinery Industry formulated the "Quality Grading Regulations for Valve Industry Products", which stipulated the requirements for life testing of first-class and superior products for gate valves and shut-off valves; If Dn ≤ 200-400, the first grade high and medium pressure valves have a scratch resistance of 2000 times, and the excellent grade valves have a scratch resistance of 4000 times. Due to the particularity of nuclear power plants, countries have established regulations on the service life of valves in nuclear power plants; Both the United States and France stipulate 40 years, while Japan stipulates 30-40 years.