Combination vacuum air release valve

Why use Combination vacuum air release valve: When the pump stops, column separation will appear in the pipe line to form negative pressure, which wil unite the column separation in return to form water harmer, the water harmmer will cause the pipeline pressure to rise sharpely ann even to damage the pipelines.

The combination vacuum air release valve is designed to solve this kind of water harmmer. The valve is applicable to pipelines of raw water ,clean water and drinking water. Its temperature is -30℃-90℃

Size: DN50-DN300

Pressure: PN10/PN16/PN25/PN40

Main component material:

Features:

1: Rapid and large amount of air release under low pressure and small amount of air release uner high pressure

2: Small amount of air release whrn full filled wirh water.

3: Rapid entry of air to stop the water harmmer to protect the pipelines from damage

4: The parameter of pressure differential for start-up can be adjusted according to customers'requirement

5: Frost cracking prrof

6: Anti-blocking and back flush

7: Diameter of the small air release orifice can be up to 10mm

8: Body and bonnet are coated with special anticorrosive paint.