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The dimpled seating surface provides a smoother and more centred valve seal surface. Since it is properly seated, the sealing problem is eliminated, and stable operation of the system is ensured. In the current flat-surface seal structure, even micron-level deviations in the valve or stem axis during production can cause contact failure. This requires very tight manufacturing tolerances and increases costs. The valve form with its dimpled contact surface is tolerant of errors. It has a structure. Small angular deviations or axial misalignments do not affect the sealing. This invention is particularly suitable for water and wastewater management, agricultural irrigation systems and industrial liquid transportation lines where air in the pipeline needs to be extracted. And it is suitable for use in pipe systems used in infrastructure projects. The developed four-effect dynamic suction cup air purge seal structure automatically discharges air accumulation in pipelines, ensuring uninterrupted system operation. Thanks to the dimpled seal surface, the dynamic suction cup system is more durable and leak-proof against external influences. Offering a structure that is easy to maintain and suitable for the use of recycled materials, it provides both environmental and economic advantages. In industry, by preventing air entrapment in high-pressure fluid transport systems such as drinking water treatment plants and power plants, pump failures and pressure fluctuations are prevented, and energy losses are minimised. This increases the efficiency of the system. The need for maintenance is reduced and the operating life is extended.
Picture 4
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The described sealing solution and its independency to vertical alignment and angular deviation is detailed for the application in a 3 and / or 4 stage air valve.( see picture 4) In air release valve systems used in previous techniques, the air release seal generally had a flat, sharp transition surface. In these systems, the float valve sat directly on the air release seal, and this contact occurred on flat surfaces. However, in such designs, the seal struggled to fully seat on the surface; in particular, during the movement of the floats, an angle was created with the flat seal surface, preventing full contact. This reduced sealing performance and reduced system reliability. In current designs, floats cannot be properly centered due to casting tolerances, resulting in irregular contact with the air vent seal and further degrading sealing performance. This centering problem during float movement becomes particularly pronounced at high flow rates, further weakening the seal-valve contact and causing air leakage. Additionally, sharp transition surfaces cause irregular stress in the gasket material, which leads to gasket deformation, wear and failure over time. It is nevertheless the appropriate solution as well for single stage air-valves, where only 1 float operates the air inlet and outlet but furthermore for any air valve with more than 1 float to control the air-release in different stages and the air-inlet. This sealing geometry allows a vertical misalignment – this refers to point 1 of the problematic areas- as well as a |
horizontal misalignment of the float( s), independent if it’ s one or more floats and is self-aligning. In all Air-Valves where we have to use respectively where we need to use nonspherical floats( e. g. Ball Air Valve), like e. g. cylindrical floats, we face the problem that the existing seal for the nozzles to release the air, are always in need to align the floats perfectly vertical and horizontal by means of a precise vertical guiding. This requires an internal air valve design to guide the floats in the chamber where they move up and down by the streaming air or inflowing water with appropriate tolerances. This new sealing allows a wide tolerance as well with no machining internally at all. |
Suction cup air vent seal structure
This invention relates to air release valves used in pressurised liquid transport systems, particularly water and wastewater lines. It relates to the air release seal structure of the suction cup system, which was developed to prevent air accumulation within the pipeline and increase system safety and efficiency. The suction cups encompass an advanced sealing solution that incorporates various functions, including evacuating air as the pipeline fills, closing the float without impact during full line filling and maintaining controlled air release, venting pressurised air generated in a fully filled line, and allowing air entry from the top of the system during pipeline emptying. Let us explain the working principle of the buoys numbered below: a. Evacuating air while the pipeline is filling: As the pipeline begins to fill with water, air in the system is quickly expelled through the air vent hole( 8) on the suction cup. Meanwhile, the upper float( 5) moves upward due to the vacuum created by the air evacuation. As the float rises, it closes the air vent hole( 8), which allows the initial air evacuation. After the hole closes, the upper float is released through the orifice hole( 9) on the upper float. Air continues to be released in a controlled manner. This orifice( 9) balances the air discharge to reduce the risk of impact that may occur in the event of a sudden rise in water.
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