GB/T 15185-2016 Flanged iron and copper ball valves

GB/T 15185-1994 Cast iron and copper alloy ball valves

GB/T 228.1-2010 Metallic materials—Tensile testing—Part 1:Method of test at room temperature GB/T 228.1-2021 Metallic materials—Tensile testing—Part 1:Method of test at room temperature GB/T 12220-1989 General purpose industrial valves—Marking GB/T 12220-2015 Industrial valves—Marking GB/T 12221-1989 Metal valves for use in flanged pipe systems—Face-to -face and centre-to-face dimensions GB/T 12221-2005 Metal valves—Face to face,end to end,center to face and center to end dimensions GB/T 12223-2005 Part-turn valve actuator attachments GB/T 12223-2023 Part-turn valve actuator attachments GB/T 12225-1989 General purpose industrial valves—Specification of copper alloy castings GB/T 12225-2005 General purpose industrial valves—Specification of copper alloy castings GB/T 12225-2018 General purpose industrial valves—Specification of copper alloy castings GB/T 12226-1989 General purpose industrial valves—Specification of flake graphite iron castings GB/T 12226-2005 General purpose industrial valves—Specification of flake graphite iron castings GB/T 12227-1989 General purpose industrial valves—Specification of spheroidal graphite iron castings GB/T 12227-2005 General purpose industrial valves—Specification of spheroidal graphite iron castings GB/T 13927-1992 Pressure testing for general purpose valves GB/T 13927-2008 Industrial valves—Pressure testing GB/T 13927-2022 Industrial valves—Pressure testing GB/T 15530.1-1995 Cast copper alloy integral flanges GB/T 15530.1-2008 Cast copper alloy integral flange GB/T 15530.8-1995 Specifications for copper alloy and composite flanges GB/T 17241.6-1998 Integral cast iron pipe flanges GB/T 17241.6-2008 Integral cast iron flanges GB/T 17241.7-1998 Specifications for cast iron pipe flanges GB/T 26640-2011 Specification for minimal thickness of the shell of valves JB/T 5300-2008 Guidelines for selecting materials for industrial valves JB/T 7928-2014 Industrial Valve Supply Requirements JB/T 5300-1991 JBT 5300-1991 General valve materials JB/T 5300-2024 Industrial valve material selection guideline JB/T 7928-1999 JBT 7928-1999 General valve Supply requirements GB/T 12221-2025 Metal valves—Face to face,end to end,centre to face and centre to end dimensions GB/T 12226-2025 General purpose industrial valves—Technical specification for gray iron castings GB/T 12227-2025 General purpose industrial valves—Technical specification for ductile iron castings