performance requirements and structure of the automatic exhaust valve is? Here to follow master Chen to specific analysis.

1。 Automatic exhaust valve supply scope of the body and the drive device, monitoring device, high performance control box and install the attachment. Suppliers must do a good job in the scene debugging according to the actual operation of the set of valve parameters.

2。 The drive of automatic exhaust valve in the form of hydraulic drive, the power source of the valve actuation is a pressure difference before and after the valve, solenoid valve with high pressure low pressure pilot valve work together. It is a kind of controlled by the pilot valve, hydraulic control valve diaphragm. Body USES Y design, in order to ensure a large flow, strong resistance to cavitation.

3。 Automatic exhaust valve is a kind of automatic control valves. With the pressure sensor circuit connection. When touch the sudden rise or fall to a certain value, touch the valve will open automatically. Control principle is mainly electromagnetic control, hydraulic auxiliary control.

automatic exhaust valve plays a secondary protection, guarantee the safety of the valve and control valve closing process, to avoid the secondary water hammer caused by valve closing too fast.

5。 Automatic exhaust valve should be still the function of the system to prevent excess pressure relief valve. When the system pressure continues to rise and over pressure control pilot valve set value, can immediately open the main valve to release the system pressure. When the system pressure drop to normal pressure range and control valve set point, the main valve closed automatically.

5。 The system under normal pressure is usually close the valve, and can ensure that opens automatically reset function under pressure fluctuations. And automatic reset, linear closed, not because of improper valve closing speed and secondary pressure fluctuations.

6。 Automatic exhaust valve opening speed should be very fast, and completely open in 1 seconds. Control pipe should be controlled to prevent impurities in water into the pipe, with good sealing effect and durability.

7。 Automatic exhaust valve should have electronic alarm and remote control function. Open valve shall be connected to the central control system ( Active or passive optional) , when the accident which can be controlled in the control room. The valve should be equipped with corresponding stress measurement accessories, procedures and electromagnetic pilot valve. Since before the valve pressure sensor, the valve valve position sensing system parameters, such as the attachment.

8。 High performance control box with automatic control module, which can independently setting and control of valve opening and open time, and can control the connection with other systems. At the same time, should be equipped with reliable remote transmission and receiving system, so that the valve station in state of control parameters and transmitted to the central control room.

the above is the performance requirements for automatic exhaust Industrial Valves and structure is introduced.

more automatic exhaust valve information click: https://www. mechvalvechina。 com

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