In the field of industrial processing, people usually use pneumatic control valve control instrument, the control instrument can ensure the accuracy of production and processing,so the staff in their daily work will take the application of control instrument as one of the important content. Pneumatic control valve is the industry process control instrument, is also often used in the production of equipment, equipment at work can be powered by compressed gas, the working principle of equipment is simple, structure is very reasonable, so when using pneumatic adjustable valve installation is very convenient.

Gas control valve features: 1. External pneumatic pilot,can automatically adjust the double packing sealing cover, can increase the service life, maintenance free. 2. There is a self-regulating sealing gland between the overflow port and the slide block, which can improve the sealing performance. Due to the spring force and gas pressure, the sealing performance is good, several times stronger than the solenoid valve. 3. Can achieve large flow (especially compared with ordinary globe valves and solenoid valves), compact structure and fast response. 4. High cos

Water proof hammer type air valve is suitable for the pipeline with water as medium, as the equipment for inhaling and discharging the gas in the pipeline, so as to improve the efficiency of the water conveying equipment and protect the pipeline from deformation and rupture, it is the necessary equipment for the pipeline. Eliminate disconnection to bridge water hammer vacuum failure and trace exhaust composite valve: when the water column separation, can be high speed suction, destroy the vacuum; When the broken flow bridge is not high speed exhaust, the air bag plays a buffering role, but can exhaust trace, gradually eliminate the accumulated air.

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.

Working principle of combined air valve: the large inlet and outlet of the low-pressure intake and exhaust assembly ensures that the air enters and leaves the air at a high speed with a high flow rate, and even the high-speed air mixed with water mist will not make the exhaust port closed in advance and lead to air seal. The vent is closed only after air is discharged. Whenever the system is lower than atmospheric pressure, such as when water column separation occurs, the air valve will immediately open to air into the system, to prevent the creation of vacuum in the system. At the same time, timely air intake during system emptying can accelerate the emptying speed. Smooth exhaust process can prevent pressure fluctuation or other destructive phenomena.