Chinese valve related standard number

GB/T 1222021980- General purpose valves - Marking

GB/T 1222121989- Flanged metal valves - Structural length

GB/T 122221989- Connections of multi turn valve drive devices

GB/T 1222521989- General purpose valves - Technical specifications for copper alloy castings

GB/T 1222621989- General purpose valves - Technical specifications for grey cast iron parts

GB/T 1222721989- General purpose valves - Technical specifications for ductile iron castings

GB/T 1222921989- General purpose valves - Technical specifications for carbon steel castings

GB/T 1223021989- General purpose valves - Technical specifications for austenitic steel castings

GB/T 1223221989- General purpose valves - Flanged iron gate valves

GB/T 1223321989- General purpose valves - Iron globe valves and lift check valves

GB/T 1223421989- General purpose valves - Steel gate valves with flange and butt welded connections

GB/T 1223521989- General purpose valves - flanged steel globe valves and lift check valves

GB/T 1223621989- General purpose valves - Steel swing check valves

GB/T 1223721989- General purpose valves - Steel ball valves with flange and butt welded connections

GB/T 1223821989- General purpose valves - Flanged and clamped butterfly valves

GB/T 1224321989- Spring direct load safety valve

GB/T 1224421989- Pressure reducing valves - General requirements

GB/T 1393221992- General purpose valves - Iron swing check valves

GB/T 1417321993- Flat Steel Gates - Technical Conditions

GB/T 1518521994- Iron and Copper Ball Valves

GB/T 846421998- Internal Threaded Valves for Plumbing

JB 30821975 Valve - Model Compilation Method

JB/T 529921998- Hydraulic Control Check Butterfly Valve

JB/T 792721999- Appearance Quality Requirements for Valve Cast Steel Parts

JB/T 792821999- General Valves - Supply Requirements

JB/T 852721997- Metal Sealed Butterfly Valve

JB/T 852821997- Technical Conditions for Electric Devices of Ordinary Valves

JB/T 853121997- Technical Conditions for Valve Manual Devices

JB/T 86912998- Clamp on Knife Gate Valve