Flow Control - Air Release Valves
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DAV-MP - PN25 Automatic Air Release Valve
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- Applications:
- Kinetic Air / Vacuum Valve:
- Exhaust large quantities of air from the pipeline when it is filled with water , at low pipeline pressure (“Kinetic” air-release function).
- Admit large quantities of air into the pipe when it is drained, or when the internal pressure drops below atmospheric pressure due to transient conditions in transient conditions (“Kinetic” anti-vacuum function).
- Automatic Air Release Valves:
- Release small pockets of accumulated air while the pipeline operates under pressure (“Automatic” air-release function).
- Combination Air Valves:
- A valve that perform the functions of both the “Kinetic” and “Automatic”.
The Importance of Air Management in Pressurised Pipelines
Trapped air can significantly reduce the performance, efficiency, and reliability of a pressurised pipeline system.
- Reduces flow capacity by restricting the effective cross-section of the pipeline.
- Increases energy consumption as pumps work harder to maintain flow.
- Creates airlocks that can severely restrict or completely stop flow.
- Causes pressure surges when air pockets move suddenly, increasing the risk of pipe damage or rupture.
- Accelerates corrosion and can damage water meters and control valves, leading to unreliable system operation.
- Requires proper air admission during draining to prevent vacuum conditions that can cause pipeline collapse or structural damage.
Effective air release and vacuum protection are essential for maintaining safe, efficient, and reliable pipeline operation.
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