Air Release Valve
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water-technology
Air Release Valve
Category: Drip Irrigation Components
Price on request
An air release valve is used in irrigation pipelines to automatically remove trapped air from the system. It helps improve water flow, reduce air blockage, protect pipes from pressure surges, and support stable operation in drip, sprinkler, and pressurized irrigation networks.
Product Description
An air release valve is an important protection device used in drip irrigation, sprinkler irrigation, and pressurized water pipelines to automatically remove trapped air from the system. Air can enter irrigation pipelines during filling, pump operation, draining, pipe leakage, water turbulence, or when the system starts and stops. If this air is not removed, it can create air pockets that block water movement, reduce flow, disturb pressure, and cause uneven irrigation.
The air release valve is usually installed vertically at high points, pump outlets, filter stations, mainlines, submains, and long pipeline sections where air is likely to collect. Inside the valve, a float mechanism rises and falls according to the water level. When air enters the valve chamber, the float drops and opens the air outlet, allowing trapped air to escape. When water fills the chamber again, the float rises and closes the outlet, preventing water from leaking out.
In irrigation systems, air release valves help improve hydraulic performance and system safety. They reduce the risk of air blockage, pressure surges, water hammer, unstable flow, pipe vibration, and possible pipe damage. They also support more uniform water distribution in drip tape, drip pipes, emitters, sprinklers, and micro-irrigation systems.
This product is useful for farms, greenhouses, orchards, nurseries, pump stations, filter units, and long irrigation pipelines. It is also valuable for teaching and demonstration because it clearly shows why irrigation systems need air control, not only water control.
Before purchase or installation, users should confirm the final supplier specifications, including connection size, working pressure, minimum sealing pressure, air release capacity, material type, float mechanism, installation position, and compatibility with the irrigation system.
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