What is air exhaust valve?

Air exhaust valves are used in the independent heating system, central heating system, heating boiler, central air conditioning, floor heating, and solar heating system. Because usually certain air is dissolved in water, and air solubility with the rising temperature decreases, the water, in the process of cycle gas, gradually separates from the water, and gradually comes together to form a big bubble column, even because there is water, so often has gases.

Air valves are applied on the water pipelines and the equipment to exclude the gas in pipelines; it enhances the efficiency of water transport and protects pipelines from transformation and break. When the pipeline is under negative pressure, this valve will suction air automatically to prevent the pipeline from breaking. This valve has a big gas displacement for double air vents, and it owns a maintenance valve, close it when repaired then it can be on-line.

Advantages of doubleair air valve?

1. When the pipe is under pressure, the product can automatically inhale air to prevent the pipe from bursting

Advanced design with a simple mechanism, strong float to prevent cracking during sudden water hammer, and quick closure.

2. Floating ball is stainless steel, has a long service life, and is safe and reliable.

Self-moving mechanism to resist blow shut under higher air velocity, even up to the sonic velocity of air.

3. Light torque

No arms or levers to prevent vibrating, bending, or direct closure of the float.

4. Small flow resistances

Smooth cage outside of the float. Keep float moving in the specified guide rail.

5. Not easy to produce water hammer

Bottom rubber buffer for collision prevention, and drain easy with proper holes around the cage during vacuum.

6. High sealing performance

Outside screen will be an option for safety and prevent insects and birds in.

7 .Floating ball is stainless steel, long service life, safe and reliable.

Fully fusion epoxy coated inside and outside of valve for long service life.

8. Simple and convenient installation, interchangeable parts

Good for distribution pipeline system, if for transmission pipeline with high impact water hammer, the anti shock device should be required.

Double air valves have three functions:

1.Evacuation of air at a high flow rate when pipes are being filled ;

2.Intake of air at a high flow rate when pipelines are being drained (protection of the network against a pressure drop in the pipelines in the case of a main being broken) ;

3.Degassing at a low flow rate when in operation.