The main features of the composite power high-speed air valve are as follows: 1) Simple structure and automatic intake and exhaust function of large and small exhaust holes; Reliable performance is basically a repair - free product. 2) Large exhaust volume, faster exhaust speed. 3) The exhaust pressure difference (air closing pressure) is greater than 0.2mpa. The exhaust does not shut off under any pressure difference, which is better than the ordinary air valve. 4) It can automatically remove the gas in the pressure balloon during normal operation.5) After exhaust gas, the valve can be closed instantly without drainage when subjected to water impact.

Principle of action of composite power high-speed air valve: when water enters the pipeline, the plug stops at the lower part of the positioning frame, and the air valve performs a large amount of exhaust. When the air is exhausted, the water enters the valve and floats the ball, the driving plug closes, and the exhaust is stopped. If the pipeline in normal operation will naturally produce a small amount of gas will be gathered to the upper part of the pipe, to a certain extent, the water level in the valve drops, the float ball drop gas discharged from the hole at any time. In case of power failure or pump shutdown, negative pressure will occur at any time in the pipe when the water flow is empty. The floating ball will be lifted down with the water, and the small hole will be opened to drive the large hole to carry out a large amount of air intake to ensure the safety of the pipe; But not on sewer lines.

Application range of composite power high speed air valve: Composite power high speed air valve ZHKF600 is a special intake and exhaust control device for water supply and drainage pipeline, which is widely used in all kinds of water plants and water supply system. Compound type refers to the valve with large hole or small hole inlet and outlet functions. When the empty pipe is filled with water, the air in the pipe is discharged automatically by the large vent at a high speed, so as not to form an air bag in the pipe and hinder the flow of water. When the pressure water is running in the pipe, due to the change of pressure and temperature, the air separated out from the water will produce air resistance. At this time, the hole will automatically expel the gas in the air bag out of the pipe; When the negative pressure occurs in the pipeline, it can automatically take in air at a high speed and destroy the vacuum, so as to avoid the instability failure of the pipeline due to negative pressure. When the pipeline is vented, it can automatically take in a large amount of air to speed up the discharge and shorten the water stop time. Also can eliminate the pipeline due to stop pump water hammer caused by the break water column damage.