CJ/T 404-2012 in English

本标准规定了防气蚀大压差可调减压阀的术语和定义、结构型式、产品型号、零件材料及结构、要求、试验方法、检验规则、标志、包装、运输和贮存。
本标准适用于公称尺寸DN50－DN1200，公称压力小于或等于PN10－PN50，介质温度小于或等于60度，给水用防气蚀大压差可调减压阀。

Scope

This standard specifies the terms and definitions, structural type, product model, parts materials and structure, removal, test methods, inspection rules, marking, packaging, transportation and storage of anti-cavitation large pressure difference adjustable pressure reducing valves. This standard is applicable to anti-cavitation large pressure difference adjustable pressure reducing valves for water supply with nominal sizes from DN50 to DNI200, nominal pressures from PN10 to PN50, and medium temperatures less than or equal to 60°C.