What is ISO 24664:2024?
SN EN ISO 24664:2025
Kälteanlagen und Wärmepumpen - Druckentlastungseinrichtungen und zugehörige Leitungen - Berechnungsverfahren (ISO 24664:2024)
Refrigerating systems and heat pumps - Pressure relief devices and their associated piping - Methods for calculation (ISO 24664:2024)
This document describes the calculation of: — mass flow for sizing pressure relief devices for parts of refrigerating systems; — 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 part of the refrigerating system at lower pressure; — the pressure loss in the inlet and outlet lines of pressure relief valves and other pressure relief devices and includes the necessary data. This document 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. NOTE The term "refrigerating system" used in this document includes heat pumps.
About SN EN ISO 24664:2025 at a glance
The SN EN ISO 24664:2025 standard provides critical methodologies for calculating pressure relief devices and their respective piping in refrigerating systems and heat pumps. Published by the International Organization for Standardization (ISO), this document is essential for professionals seeking to ensure safety, reliability, and compliance in their refrigeration systems. This FAQ page targets key questions regarding What is ISO 24664:2024? and provides clarity on its implications for pressure relief devices.
Related topics
If you're interested in exploring more, consider delving into these related areas:
- Other clauses of SN EN ISO 24664:2025 that provide deeper insights on specific calculations and safety measures.
- Sister standards that complement ISO 24664:2024, enhancing your understanding of pressure systems.
- Training sessions focused on achieving compliance with ISO 24664:2024 and other related standards.
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