scope:

This European Standard specifies materials and test requirements for fittings of copper and copper alloys with or without plating or coating. This part of EN 1254 specifies compression end connections in the size range 6 mm to 108 mm for the purpose of joining copper tubes intended for use in hot or cold or combined hot and cold water, heating and cooling systems, natural gas and liquefied petroleum gas systems. Permissible operating temperatures and maximum operating pressures are also established. This standard is applicable to compression fittings for joining the following tubes: Copper tubes to EN 1057; Pre-insulated copper tubes to EN 13349. Fittings may also be suitable for joining other tubes provided the compression fitting joint with the specified tube meets the requirements of this standard. Fittings may comprise a combination of end types, specified in this standard, EN 1254, or other standards, providing they are suitable for the fluid/gas being conveyed. The standard establishes a designation system for the fittings.