The water contains dissolved air at all times, as the water is transported through the pipe, the pressure drops due to the effect of friction on the walls. The required diameter depends on the diameter of the drain or drain valve and the difference in height between the air valve and the drain valve. This is carried out with air valves located at high points in the system. When emptying the pipe of water, air must enter to avoid the appearance of negative pressures that can damage the pipe. The required diameter depends on the filling rate of the pipe. When starting the filling of the pipe, the air inside it needs to be evacuated in a controlled manner. Applications of Air ValveĪir valves are helpful under following operations.
The valves can inject air into the pipes while they are being emptied, preventing a vacuum, which would cause the pipe to collapse.They also allow air to escape from the pipes during filling.
Air valves allow excess air to escape from the pipeline while containing pipeline fluids within the pipeline during operation.Disadvantages due to lack of Air in the pipeline Purpose of Air ValvesĮxcess air in a pipe can cause slower flow, pipe churning damage, cause turbulence, and increased corrosion rate.Disadvantages of Air Valves in the pipes lines.
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