Patent ID: 11927308
Assignee: ROTAREX S.A.
Field: Mechanical elements (Mechanical engineering)
Classification: CPC F | IPC F

Claim 18:
19. A valve for a fluid, said valve comprising:
a body with an inlet, an outlet and a passage fluidly interconnecting the inlet and outlet;
a shut-off device housed in the body and configured for selectively opening and closing the passage, the shut-off device comprising:
a main seat,
a main closing element configured for cooperating with the main seat, forming a channel extending there through and a pilot seat,
a pilot closing element housed in the main closing element and configured for cooperating with the pilot seat; and

an actuating device configured for moving the pilot closing element away from the pilot seat and open the passage through the channel and, once a counter-pressure has built up downstream of the main closing element, move the main closing element away from the main seat,
wherein the main closing element shows an outer cylindrical surface housed in a sliding fashion in at least one bore of the body, the outer cylindrical surface showing a least one longitudinal cut-out forming the passage along the main closing element.