Standard

Sorry - this product is no longer available

prNS-EN ISO 24664:2021

Withdrawn

Note: This standard has a new edition: NS-EN ISO 24664:2024

Preview

Singles purchase not accessible

This standard can not be purchased as a single sales.

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.

Document information

  • Standard from SN
  • Edition: 2021-03
  • Version: 1
  • Document type: NAT
  • ICS 27.080
  • ICS 27.200
  • National Committee SN/K 33

Product Relations

Product life cycle