This European Standard specifies the dimensions, the nature of the materials and the performance requirements (including test methods) to be met by safety valves for nominal sizes DN 15 to DN 40 and with service pressures of 0.1 MPa (1 bar) at 1.0 MPa (10 bar).

The safety valves are intended to be mounted at the cold water supply of storage water heaters, the temperature of which does not exceed 95 OC, regardless of the energy mode used.

The safety valve does not control the temperatures and does not, on its own, provide the necessary protection for domestic hot water equipment and is not intended to function as an expansion valve under normal conditions.

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