Flow control
b. Completion of water intake and raising of buoys: Air is released from the air outlet cap hole( 8) and then from the upper float orifice hole( 9). As the water level rises, the buoyancy force of the water pushes the middle float( 4) and it pushes the lower float( 3) upwards and the floats are completely closed. This movement prepares the floats for the system to become fully filled. c. Air accumulation in the pipeline and sudden air release: Air may accumulate in the pipeline over time while the system is operating. In such a case, the water level begins to drop due to the accumulation of air bubbles inside the suction cup, and the lower float( 3) loses its support and sinks. The downward movement of the lower float causes the middle float to orifice hole on the upper float( 5) to open.( 10) opens. This allows air accumulated in the pipeline to be expelled. This sudden release of air occurs briefly and repeatedly, depending on the amount of air. Air continues to be released from the suction cup intermittently until the water level rises again, lifting the lower float( 3). The lower float rises again as the water level rises, and the suction cup retains the water inside, ensuring a leak-proof system.
d. Ensuring sealing and closing of orifices: When air escape is completely eliminated and the pipeline is fully filled again, the lower float( 3) rises again. The lower float, along with the air release gasket, moves upward, contacting the float valve hole( 11), sealing the valve. The float valve( 7) creates uniform pressure on the gasket, ensuring a complete seal on the suction cup. At the same time, the float valve( 7) closes the hole( 11) located above it, preventing any air or water leakage. e. Re-venting air into the pipeline: When the pipeline begins to empty, the water level drops, and the three floats( 3, 4, and 5) inside the suction cup move downward together. This movement opens the hole( 8) in the air vent valve in the system. This allows air to enter the pipeline. This air intake reduces the vacuum that may occur during the line’ s emptying process. This prevents the formation of a vacuum. This eliminates the risk of collapse or deformation in the pipeline, allowing the line to be safely evacuated. Once the air intake is complete, the system regains its balance, and the suction cup is ready for the next filling phase. Notes: Air vent cap hole( 8): Enables rapid filling of the line by providing initial air evacuation at high flow rate. holes( 9, 10, 11):
Provides controlled and impact-preventing air outlet / inlet. Air vent gasket( 6): With its dimpled structure, it ensures that the float valve sits properly on the surface, creating a complete seal. This technique is used in drinking water networks, irrigation systems, industrial liquid transfer lines, treatment plants and similar pipeline systems. The seal structure obtained with this invention ensures a smooth and integral fit to the dimpled surface, ensuring a leak-tight seal. Furthermore, the dimpled air-venting gasket structure provides more uniform stress distribution. Dimpled surfaces distribute the load over a wider area, extending the life of the gasket material.
Conclusion
The state-of-the-art solution is, as previously indicated and described, a flat sealing of rubber which does not allow a vertical misalignment of the float as it leads inevitably to a leakage. This new solution / invention accepts a wide range of angular error and is herein completely independent from the number of floats used additionally together with the single float with the integrated nozzle. This solution allows a far better function of the additionally used floats on top of the 1st float used with the new float – nozzle sealing, as it compensates all misalignment failures vertical and horizontal. Self explaining herein is, that by using this nozzle sealing an extended lifetime, as any wear and tear on the bottom sealing is compensated and does not lead to a leakage which in the end is a much longer lifetime of the Air Valve itself and / or much less service is required. Moreover, the complete valve is insensitive to any wear and tear to the outside float diameter as well as on the vertical float guiding.
1 BODY
PART LIST
2 AIR VENTING COVER 3 LOWER BUOY 4 MIDDLE BUOY 5 UPPER BUOY 6 AIR VENTING SEAL 7 FLOAT VALVE 8 AIR VENTING COVER HOLE 9 UPPER FLOAT ORIFICE HOLE
10 MIDDLE Buoy Orifice Hole
Dynamic suction cup seal structure and parts list.
11 FLOAT VALVE HOLE
46 Valve World February 2026 www. valve-world. net