Design and Application of Intake & Exhaust Valves

Product Overview

The air valve adopts a positive pressure exhaust and negative pressure intake design, with both exhaust and intake functions. The exhaust valve automatically discharges a small amount of accumulated air inside under the condition of pipeline pressure. When the negative pressure pipeline is vented, it automatically intakes, maintaining a smooth water flow. Especially under the condition of water column separation, it opens automatically, introducing air into the pipeline to eliminate the vacuum.

Materials: UPVC, PP, PA

Working Principle

• System Water Injection: During the system water injection process, a large amount of air is expelled from the intake and exhaust ports. After water enters the air valve chamber, the float ball closes the intake and exhaust ports with the rising liquid level. With the valve body design conforming to gas dynamics and the float ball anti-blow up design, it can prevent the float ball from being blown up by high-speed airflow before the water enters the air valve, causing the exhaust port to close too early.
• System Under Pressure: When the system is under pressure, the intake and exhaust valves remain closed.
• System Under Negative Pressure: When the system is emptied, forming a negative pressure difference, air pushes down the float ball, air enters the air valve, avoiding the formation of negative pressure in the system.