BS EN 14276-2:2020 pdf free.Pressure equipment for refrigerating systems and heat pumps.Piping一General requirements.
BS EN 14276-2 1.5 This document applies to piping with an internal pressure down to -1 bar, to account for the evacuation of the piping prior to charging with refrigerant.1.6 This document applies to both the mechanical loading conditions and thermal conditions as defined in EN 13445-3:2014/A5:2018 associated with refrigerating systems. It applies to piping subject to the
maximum allowable temperatures for which nominal design stresses for materials are derived using EN 14276-1:2020 or as specified in this document. In addition, piping designed to this document will have a maximum design temperature not exceeding 200°C and a maximum design pressure not exceeding 1 60 bar. Outside of these limits, the EN 13480 series can be used for the design construction and inspection of the piping. Under these circumstances, the unique nature of a refrigerating plant, as indicated in the introduction of EN 14276- 1:2020, will also be taken into account. 1.7 This document applies to piping where the main pressure bearing parts are manufactured from metallic ductile materials as defined in Clause 4 and in EN 14276-1:2020.2，Normative references The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 378- 1:2016, Refrigerating systems and heat pumps – Safety and environmental requirements一Part 1: Basic requirements, definitions, classification and selection criteria EN 378-2:2016, Refrigerating systems and heat pumps一Safety and environmental requirements一Part 2: Design, construction, testing, marking and documentation EN 378-3:2016, Refrigerating systems and heat pumps一Safety and environmental requirements一Part 3: Installation site and personal protection. The materials referenced in this document shall meet the requirements of EN 14276- 1:2020 unless modified by the subclauses of this clause. It is permitted to use non-metallic materials (e.g. gaskets, coatings, insulating materials, sight glasses) provided they are compatible with the other materials, refrigerants and lubricants present. Sight glasses shall comply with EN 12178:2016 for pressure bearing requirements.BS EN 14276-2 pdf downlaod.