Single-port air release valve

Single-port air release valve (air release valve) is used for pipeline exhaust in independent heating systems, central heating systems, heating boilers, central air conditioners, floor heating and solar heating systems. Because there is usually a certain amount of air dissolved in water, and the solubility of air decreases with the increase of temperature, the gas gradually separates from the water during the circulation of water, and gradually gathers together to form large bubbles or even air columns. Because there is water replenishment, gas is often generated.

Working principle of single-port air release valve:

In the exhaust state, the float pulls one end of the lever down due to gravity. At this time, the lever is in an inclined state, and a gap appears in the contact part between the lever and the exhaust hole. The air is discharged from the exhaust hole through this gap. As the air is discharged, the water level rises, and the float floats upward under the buoyancy of the water. The sealing end face on the lever gradually presses on the exhaust hole until the entire exhaust hole is completely blocked. The air release valve is now completely in a closed state.

Advantages of single-port air release valve:

1. The float of the air release valve is made of low-density PP material, which will not deform even if it is immersed in high-temperature water for a long time. It will not cause difficulty in the movement of the float.

2. The float lever is made of hard plastic, and the connection between the lever, the float and the support is a movable connection, so it will not rust during long-term operation, causing the system to fail to work and leak.

3. The sealing end face of the lever is supported by a spring, which can be extended and retracted accordingly with the movement of the lever to ensure sealing without exhausting the air.