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Publication of FR1018020ApublicationCriticalpatent/FR1018020A/fr
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
F16K17/20—Excess-flow valves
F16K17/22—Excess-flow valves actuated by the difference of pressure between two places in the flow line
F16K17/32—Excess-flow valves actuated by the difference of pressure between two places in the flow line acting on a servo-mechanism or on a catch-releasing mechanism
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FR1018020D1950-04-071950-04-07Appareil de sécurité pour conduites de gaz et fluides sous pression
ExpiredFR1018020A
(fr)