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SR EN 12178:2017

Refrigerating systems and heat pumps - Liquid level indicating devices - Requirements, testing and marking

This European Standard specifies safety requirements, safety factors, test methods, test pressures and marking of liquid level indicating devices, referred to throughout this standard as level indicators, for use in refrigerating systems and heat pumps. It applies to devices connected to refrigerant vessels (e.g. on high-pressure liquid receivers, intercoolers and low-pressure receivers) and to devices connected to other parts of a refrigerating system (e.g. oil-level sight glasses on a compressor). This European Standard applies to those types of level indicators that are direct and indirect reading devices (e.g. sight glasses, frosting tubes), and includes electrical and pneumatic indicators. This European Standard describes the procedure to be followed when designing (by calculation or by an experimental design method) level indicator parts subjected to pressure as well as the criteria to be used for the selection of materials. This European Standard applies to the design of level indicators with respect to pressure containment and describes methods by which the reduced imp

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Status : Withdrawn
Approval date : 4/28/2017
Withdrawal date : 11/29/2024
Number of pages : 18
ICS : 27.080 Heat pumps,27.200 Refrigerating technology
Technical Committee : 147 - Refrigerating systems

Relations with other standards: