Steam trap, aseptic double seated valve, method of operating the steam trap, and filling plant
AssigneeEvoguard GmbH
InventorMartin Sauer
Life of this patent
Estimating the term…
Abstract
In a steam trap comprising a seat valve that is adapted to be switched over between an open position for a first discharge state with large throughput and a closed position for a second discharge state with small throughput, the closure element and the seat of the seat valve define, at the closed position, a two-part passage, said passage having a jet cross-section, which first decreases in size in the discharge direction and, subsequently, re-increases in size, and being delimited by the seating area, the sealing face and at least one, only local control groove in the sealing face and/or the seating area. In the aseptic double seated valve the steam trap serves to carry out a flushing cycle as well as a sterilization cycle in a filling plant.
Claims19
A steam trap for aseptic double seated valves in beverage or food filling plants, wherein the steam trap, on an intake side, is connected to at least one drain valve of a double seated valve and to an outlet, and which includes a seat valve comprising a closure element with a conical sealing face and a seat with a conical seating area, said seat valve being adapted to be switched at least between an open position for a first discharge state with large throughput and a closed position for a second discharge state with small throughput,
- wherein at the closed position, the closure element and the seat allow a flow through a passage, said passage having a cross-section, which, in a discharge direction, exhibits an initial inlet, then a constriction and enlarges after said constriction defining a flow-through path which is larger than the constriction, and being delimited by the seating area, the sealing face, and at least one control groove in the sealing face, the seating area, or both.
Dependencies are inferred from the claim text.