4.3 Intended use
Safety valves protect tanks and pipework systems against impermissible excessive pressure. Safety
valves represent the last line of safety for a tank or pipework system. They should be capable of
preventing impermissible excessive pressure when all other upstream regulating, control and monitoring
devices have failed. In order to ensure this operability, safety valves require special attention during their
assembly and maintenance.
A safety valve is a piece of equipment with a safety function for protecting pressure equipment when the
permissible limits are exceeded and is thus subject to Directive 2014/68/EU (Pressure equipment
directive) of the European Parliament and of the Council, article 2, section 4.
4.4 Operating data
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