This standard specifies the terms and definitions, model preparation, structural requirements, technical requirements, test methods, inspection and acceptance, quality certificates, and markings of gas pressure regulating boxes (hereinafter referred to as "pressure regulating boxes") used in urban gas transmission and distribution systems. , packaging, transportation and storage. This standard applies to pressure regulating boxes with an inlet pressure not greater than 1.6MPa and an operating temperature not exceeding -20 ℃ ~ 60 ℃. This standard does not apply to underground pressure regulating boxes.
CJ/T 275-2008 history
2008CJ/T 275-2008 City gas pressure regulating station