This standard specifies the basic parameters, structural dimensions and technical conditions of copper pipe 45° elbows. This standard is applicable to pipeline systems such as cold water, hot water, refrigeration, heating (high temperature water less than or equal to 135°C), gas, medical gas, etc. Other pipelines can also be used with reference.
JG/T 3031.4-1996 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 3031.4-1996 45° Elbow of Copper Pipe Fittings for Construction
JG/T 3031.4-1996 45° Elbow of Copper Pipe Fittings for Construction was changed to CJ/T 117-2000 Copper tube fittings for construction (Spigot and socket joint).