This standard specifies the basic parameters, structural dimensions and technical conditions of copper pipe casing joints. This standard is applicable to pipeline systems such as cold water, hot water, refrigeration, heating (high temperature water less than or equal to 135C), gas, medical gas, etc. Other pipelines can also be used with reference.
JG/T 3031.7-1996 history
2019CJ/T 117-2018 Socket metal pipe fittings for construction
2000CJ/T 117-2000 Copper tube fittings for construction (Spigot and socket joint)
1996JG/T 3031.7-1996 Copper Pipe Fittings Casing Joints for Buildings
JG/T 3031.7-1996 Copper Pipe Fittings Casing Joints for Buildings was changed to CJ/T 117-2000 Copper tube fittings for construction (Spigot and socket joint).