GB Standards for China Manufacturer License of valves

For most valves a China Manufacturer License is required for China. Among others, this mandatory license applies to safety valves of boilers, vessels and pressure pipeline as well as valves for gas cylinder.

Below you find the updated GB Standards for China Manufacturer License for safety valves. All pressure-bearing parts and spring material of safety shall be in accordance with the related GB Standard.

  • GB/T 699-2015          Quality carbon structural steels
  • GB/T 1220-1992        Stainless steel bars
  • GB/T 1221-2007        Heat-resistant steel bars
  • GB/T 1222-2007        Spring steel
  • GB/T 3077-2015        Alloy structure steel
  • GB/T 4357-2009        Cold-drawn non-alloy steel wire for springs
  • GB/T 4423-2007        Copper and copper-alloy cold-drawn rod and bar
  • YB/T 5318-2010        Alloy steel wires for spring
  • GB/T 12225-2005      General purpose industrial valves—Specification of copper alloy castings
  • GB/T 12228-2006      General purpose industrial valves – Specification of carbon steel forgings
  • GB/T 12229-2005      General Purpose industrial valves-Specification of carbon steel castings
  • GB/T 12230-2005      General Purpose industrial valves-Specification of stainless steel castings
  • YS/T 649-2007           Wrought copper and copper alloys-extruded rod and bar
  • GB/T 15008-2008      Corrosion-resisting alloy bars
  • GB/T 18983-2003      Oil-hardened and tempered steel wire for mechanical springs
  • GB/T 24588-2009      Stainless steel wires for spring
  • GB/T 18983-2017      Wire for quenched and tempered springs
  • YB/T 5136—1993       Chromium-Vanadium spring steel wire for valve
  • JB/T 5263—2005       Specification for steel casting for power station valves
  • JB/T 7248-2008         Technical specification for low temperature service steel casting for valves

Please do not hesitate to contact us for a translation.

 

GB Standards for China Manufacturer License of valves

GB Standards for China Manufacturer License of valves