Ilmanpoistoventtiili

An ilmanpoistoventtiili, also known as an air vent or air release valve, is a device used in fluid systems to automatically or manually remove air or other gases that accumulate within the system. These gases can cause several problems, including reduced system efficiency, airlocks that prevent fluid flow, and corrosion of system components.

Ilmanpoistoventtiilit are commonly found in hydronic heating and cooling systems, domestic water supply lines, and industrial process piping. In heating systems, trapped air can create cold spots in radiators and reduce the overall effectiveness of the heating. In water systems, air can lead to sputtering faucets and reduced water pressure.

The operation of an ilmanpoistoventtiili typically relies on the difference in density between the fluid and the trapped gas. Many automatic vents have a float mechanism. When air collects, it rises to the top of the valve, causing the float to drop and open a small port, releasing the air. Once the air is expelled and fluid fills the valve, the float rises, closing the port. Manual vents require a user to periodically open a valve to release accumulated air.

Choosing the correct ilmanpoistoventtiili depends on the specific application, including the type of fluid, operating pressure, temperature, and the size of the system. They are an essential component for ensuring the smooth and efficient operation of many fluid-based systems by preventing the detrimental effects of trapped air.