What is BS EN 13136 about?
BS EN 13136 is a European Standard that describes the calculation methods of mass flow for sizing pressure relief devices for components of refrigerating systems.
BS EN 13136 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 the atmosphere or components within the system at lower pressure.
BS EN 13136 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.
Note: The term "refrigerating system" used in this European Standard includes heat pumps.
Who is BS EN 13136 for?
BS EN 13136 on refrigeration and heat pumps is useful for:
- Manufacturers and suppliers of pressure relief devices
- Electronics and Electrical engineers
- Mechanical engineers
- Testing houses/ service/certification providers for heat pumps
Why should you use BS EN 13136?
Pressure relief devices are used to provide a means of venting excess pressure which could rupture a boiler or pressure vessel.
BS EN 13136 describes the calculation methods of mass flow to select pressure relief devices for refrigeration systems. It specifies how to calculate the pressure loss in upstream and downstream lines of pressure relief valves and other pressure relief devices and how to select them.
BS EN 13136 specifies the requirements for the 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 the trapped liquid.
Overall, BS EN 13136 guides users to use a structured methodology and a systems approach to test, calculate and manufacture superior quality pressure relief devices and heat pumps, thereby accelerating the uptake of new energy-saving technologies. Utilizing these tools can lead to greater energy efficiency and superior-quality products.
