EN 13136:2013/prA1:2017

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

General information

40.60 Close of voting   Aug 3, 2017

CEN

CEN/TC 182 Refrigerating systems, safety and environmental requirements

European Norm

27.080   Heat pumps | 27.200   Refrigerating technology

Scope

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.

Related legislation

Legislation related to this standard

2014/68/EU

Directive 2014/68/EU of the European Parliament and of the Council of 15 May 2014 on the harmonisation of the laws of the Member States relating to the making available on the market of pressure equipment

Life cycle

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EN 13136:2013

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EN 13136:2013/prA1:2017
40.60 Close of voting
Aug 3, 2017