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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
F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
F16K31/18—Actuating devices; Operating means; Releasing devices actuated by fluid actuated by a float
F16K31/34—Actuating devices; Operating means; Releasing devices actuated by fluid actuated by a float acting on pilot valve controlling the cut-off apparatus
G—PHYSICS
G05—CONTROLLING; REGULATING
G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
G05D9/00—Level control, e.g. controlling quantity of material stored in vessel
G05D9/04—Level control, e.g. controlling quantity of material stored in vessel with auxiliary non-electric power
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FR1100383D1954-03-021954-03-02Dispositif destiné à contrôler l'écoulement d'un fluide entre deux milieux soumis à des pressions différentes
ExpiredFR1100383A
(fr)
Perfectionnements apportés aux systèmes autorisant le passage d'un fluide entre deux espaces soumis à des pressions différentes, notamment pour pompes et compresseurs