DIN Standards Committee Refrigeration Technology
Refrigerating systems and heat pumps - Pressure relief devices and their associated piping - Methods for calculation (ISO/FDIS 24664:2024)
Abstract
1.1 This Standard describes the calculation of mass flow for sizing pressure relief devices for components of refrigerating systems. NOTE The term "refrigerating system" used in this Standard includes heat pumps. 1.2 This Standard describes the calculation of discharge capacities for pressure relief valves and other pressure relief devices in refrigerating systems including the necessary data for sizing these when relieving to atmosphere or to components within the system at lower pressure. 1.3 This Standard specifies the requirements for selection of pressure relief devices to prevent excessive pressure due to internal and external heat sources, the sources of increasing pressure (e.g. compressor, heaters, etc.) and thermal expansion of trapped liquid. 1.4 This Standard describes the calculation of the pressure loss in the upstream and downstream line of pressure relief valves and other pressure relief devices and includes the necessary data. 1.5 This Standard refers to other relevant standards in Clause 5.
Begin
2020-11-30
WI
00182092
Planned document number
FprEN ISO 24664
Responsible national committee
NA 044-00-01 AA - Safety and environment protection
Responsible european committee
CEN/TC 182/WG 2 - Design and testing
draft standard
Refrigerating systems and heat pumps - Pressure relief devices and their associated piping - Methods for calculation (ISO/DIS 24664:2021)
2021-03
Order from DIN Media
Refrigerating systems and heat pumps - Pressure relief devices and their associated piping - Methods for calculation (ISO/FDIS 24664:2024)
2024-06
Order from DIN Media
