Ventilgeometri

Ventilgeometri refers to the spatial arrangement and shape of the openings and passages within a valve that control fluid flow. This geometry is crucial for determining a valve's performance characteristics, including its flow rate, pressure drop, and control capabilities. Different valve types, such as globe valves, ball valves, butterfly valves, and gate valves, have distinct ventilgeometri, each suited for specific applications.

In a globe valve, for instance, the ventilgeometri typically involves a seat and a plug or disc that moves linearly to create a variable opening. This design allows for precise throttling and flow regulation. A ball valve, on the other hand, uses a spherical closure element with a bore that aligns with the valve body to permit or obstruct flow. The shape and size of this bore directly influence the flow characteristics. Butterfly valves employ a disc that rotates on a central spindle, with the ventilgeometri defined by the disc's shape and its interaction with the valve body. Gate valves feature a wedge or parallel slide that moves perpendicular to the flow, offering a clear, unobstructed path when fully open.

The design of the ventilgeometri impacts how smoothly fluid flows through the valve, the potential for turbulence, and the susceptibility to erosion or cavitation. Engineers carefully consider these geometric aspects when selecting or designing valves for specific industrial processes to ensure optimal efficiency and longevity. Factors like the included angle of a conical plug, the radius of curvature of a seat, and the shape of internal passages all contribute to the overall ventilgeometri and its functional outcome.