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EVS-EN 13136:2013+A1:2018

Refrigerating systems and heat pumps - Pressure relief devices and their associated piping - Methods for calculation

General information
Valid from 19.12.2018
Base Documents
EN 13136:2013+A1:2018
Directives or regulations
2014/68/EU Pressure equipment (PED)
Standard history
Status
Date
Type
Name
Main
prEN ISO 24664
19.12.2018
Main + amendment
14.11.2013
Main
1.1 This European 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 European Standard includes heat pumps. 1.2 This European 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 European 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 European 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 European Standard refers to other relevant standards in Clause 5.
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