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Priority to NL7214401ApriorityCriticalpatent/NL7214401A/xx
Publication of NL7214401ApublicationCriticalpatent/NL7214401A/xx
F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
F16K17/18—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on either side
F16K17/19—Equalising valves predominantly for tanks
F16K17/192—Equalising valves predominantly for tanks with closure member in the form of a movable liquid column