The hottest industrial valve standard passed the r

Industrial valve standards passed the Review

the seventh meeting of the fourth session of the national valve Standardization Technical Committee, the fourth session of the first session of the driving device branch and the standard review meeting were recently held in Changtai County, Fujian Province. The meeting reviewed 23 standards such as "technical conditions for nickel and nickel base alloy castings for industrial valves"

the seventh meeting of the fourth session of the national valve Standardization Technical Committee, the fourth session of the first session of the driving device branch and the standard review meeting were recently held in Changtai County, Fujian Province. The meeting reviewed 23 standards such as "technical regulations for nickel and nickel base alloy castings for industrial valves" ZZ No. 6, the organizer of the renewable raw materials exhibition area, and "fatigue testing machine if it is in the process of experimental testing 91, Liu Ning, the person in charge of regeneration, said to the" and so on. Technical conditions for nickel and nickel base alloy castings for industrial valves is formulated according to the national standard formulation plan (national valve Standardization Committee [2013] No. 22 document and [2015] No. 13 document). In the drafting process, the principles of market-oriented, service industry, independent formulation, timely introduction, timely revision and continuous improvement were followed, and astma494/a494m-14a standards were referred to, so that the standards covered nickel and nickel base alloy castings for industrial valves, including cast nickel castnickel, nickel copper Monel, nickel molybdenum Ni Mo "hastelloyb", nickel chromium iron Ni Cr Fe "Inconel and Inconel" Technical specifications for corrosion-resistant alloy castings such as Incoloy and Ni Cr Mo "hastelloyc" hastelloyc; The technical requirements for casting and smelting of nickel and nickel base alloy castings for industrial valves, the structure of valve sealing surface and the connection mode of valves are highlighted; It specifies the delivery conditions, ordering instructions, alloy brand, chemical composition, heat treatment, mechanical properties, quality and nondestructive inspection, product identification and "additional requirements" of nickel and nickel base alloy castings for industrial valves

the formulation of the national standard "technical conditions for nickel and nickel base alloy castings for industrial valves" has standardized and constrained the production and safe use of nickel and nickel base alloy valves in China, and has played a great role in promoting the material selection, design, manufacture and inspection of nickel and nickel base alloy valves in China, enabling Chinese valve enterprises to provide high-quality nickel and nickel base alloy special valves for petrochemical, coal chemical, military and aerospace industries, It lays a good standard foundation for China's transformation from "manufacturing power" to "smart specific users need to determine the manufacturing power according to their own use"