Air Valve

Air valves are an essential component of any pneumatic system and are commonly used in a range of industrial and commercial applications. At their most basic, air valves enable the flow of air or gas into or out of a system, allowing for the control of pressure, flow, and direction.

During the water filling stage of the pipeline, the air valve quickly exhausts the air inside the pipeline to avoid the formation of air resistance, ensuring that the water flow quickly fills the pipeline and improving the water delivery efficiency. When draining the pipeline, it promptly sucks in air to prevent deformation or even rupture of the pipeline due to negative pressure. During normal operation, small bubbles generated by water flow disturbance can be continuously discharged, reducing energy loss and extending the service life of the pipeline.

From the perspective of structure and function, there are various types of air valves. Exhaust valves are mainly used to remove air from pipelines and are usually installed at high points in pipelines. The intake valve quickly sucks in air during pipeline drainage or pressure reduction, and is often located at the low point of the pipeline or at the end of long-distance water supply pipelines. The composite air valve integrates exhaust and intake functions, and can automatically switch according to changes in pressure inside the pipeline, widely used in complex working conditions.

The application fields of air valves are very wide. Ensure stable urban water supply and reduce the risk of pipe bursting in the water supply and drainage system. The water pipeline of the sewage treatment plant is equipped with air valves to ensure efficient transportation of sewage. In water conservancy and hydropower engineering, air valves play an important role in the safe operation of dam water pipelines. In addition, air valves are also indispensable in industrial fields such as oil and natural gas pipelines, ensuring the safety and stability of fluid transportation through precise gas control.

At MIDAS Company, we offer a wide selection of air valves, ranging from standard models to highly specialized valves designed for use in specific applications. With our expertise and experience, we can help you select the perfect air valve for your needs, ensuring reliable performance, easy installation, and long-lasting durability. So whether you are looking for a simple ball valve or a complex solenoid valve, trust MIDAS Company to deliver the best.

Specification :

Material for valve body : cast iron or ductile iron

Working pressure : PN1.0--2.5MPa

Standard : DIN/BS/AWWA 

Size : 50-400mm/2" - 16"

Wedge : D/I , core fully vulcanized with NBR or EPDM rubber

Wedge Nut : Brass

Stem : Stainless steel , BS970 431S29 or DIN17440x20Cr13

Gaske t : NBR

Bonnet : GGG500-7

O ring : NBR

Washer : Carbon steel or Stainless steel

Pressure  grade : PN10, PN16

Coating : Fusion-bonded   epoxy 200-250 microns inside and out side or Coating as per customers'   requirement

Package : carton for each item , wooden boxes outside