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
F16K31/36—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor
F16K31/363—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor the fluid acting on a piston
Dispositif pour provoquer la chute de pression de l'huile haute pression de commande des soupapes d'admission d'une turbine en cas de survitesse
Dispositif de controle de l'ecoulement d'un fluide dans un circuit et de protection de la partie de ce circuit situee en amont du dispositif et installations pourvues de ce dispositif.