Industrial valve standards passed the review

The 7th meeting of the National Valve Standardization Technical Committee and the 4th and Standards Review Meeting of the Driving Device Branch were held in Changtai County, Fujian Province. The meeting reviewed 23 items including "Technical Conditions for Nickel and Nickel-Based Alloy Castings for Industrial Valves". standard. The Technical Conditions for Nickel and Nickel-Based Alloy Castings for Industrial Valves are formulated in accordance with the National Standards Development Plan (National Valve Standards Committee [2013] No. 22 and [2015] No. 13). In the drafting process, follow the principles of market-oriented, service industry, self-developed, timely introduction, timely revision, and continuous improvement. With reference to ASTM 494/A494M-14a, the standard covers nickel and nickel-based alloy castings for industrial valves, including cast nickel. CastNickel, nickel-copper Monel Monel, nickel-molybdenum Ni-Mo Hastelloy B, Hastelloy B, nickel-chromium-iron Ni-Cr-Fe "Inconel, Incoloy and Nickel-Chromium" Molybdenum Ni-Cr-Mo "Half's C alloy" Hastelloy C and other corrosion-resistant alloy castings technical specifications; and highlights the technical requirements for casting and smelting of nickel and nickel-based alloy castings for industrial valves, valve sealing surface structure and valves Connection method; specifies the delivery conditions, ordering instructions, alloy grades, chemical composition, heat treatment, mechanical properties and quality and non-destructive testing of nickel and nickel-based alloy castings for industrial valves for nickel and nickel-based alloy castings for industrial valves. Identification and "additional requirements" and other content.
    The formulation of the national standard "Technical Conditions for Nickel and Nickel-Based Alloy Castings for Industrial Valves" has made the production and safe use of nickel and nickel-based alloy valves in China have standard specifications and constraints, and the selection of nickel and nickel-based alloy valves in China. Design, manufacture and inspection have greatly promoted the role of China's valve companies in the petrochemical, coal chemical and military aerospace industries to provide high-quality nickel and nickel-based alloy special valves for China's "manufacturing power" to "intelligence The transformation of the great powers laid a good foundation for standards.