Non-return Valve Factory introduces the matching function of pneumatic valve accessories:

1. Pneumatic triple parts are the most common accessories in pneumatic valves, and their functions can be simply summarized as: filtration + decompression + oil mist. Among them, the pressure reducing valve is a necessary accessory. No matter what kind of function, the pneumatic valve must be equipped. Its function is to give the pneumatic valve a standard pressure of the power source, and the standard value is 0.4-0.7MPa. The pressure reducing valve is a valve that reduces the inlet pressure to a certain required outlet pressure through adjustment, and relies on the energy of the medium itself to keep the outlet pressure automatically stable.

a. The function of the two-piece (filter, pressure reducing valve): to complete the filtering and pressure reducing functions of the compressed instrument air
b. Function of triple parts (filter, pressure reducing valve, lubricator): complete the filtering and pressure reducing functions of compressed instrument air, and lubricate the air.

2. Pneumatic solenoid valve can also be called directional control valve. For two-position valves that only need to open and close, solenoid valve is a necessary configuration. The solenoid valve can control the opening/closing of pneumatic valves through excitation/demagnetization. Solenoid valves are often used for on-off valves, and control the on-off of the air source gas circuit through a voltage signal to control the on-off of the valve. Definition: a valve that uses an electromagnet to operate the spool to move,Generally, the opening and closing of the valve is realized by controlling the movement process of the pneumatic actuator.

3. The valve limit switch, also known as the travel switch, can also be called the echo device. It is a field instrument for detecting valve status in the automatic control system. It is used to output the open or closed position of the valve as a switch value (contact) signal, which is accepted by the program controller or the computer searches for sampling, and executes the next program after confirmation. This product can also be used as an important valve interlocking protection and remote alarm in the self-system.for warning instructions. If you want to grasp the valve position status of the two-position valve, the valve limit switch is an effective configuration, which is an electrical switch used to indicate and feedback the movement limit position of the mechanical equipment.

4. Valve positioner, it is a necessary configuration of pneumatic control valve. The valve positioner can control the position of the valve at any opening. It takes the valve stem displacement signal as the input feedback measurement signal and the controller output signal as the setting. Signal, compare, when there is a deviation between the two, change the output signal to the actuator, make the actuator act, and establish the valve stem position The one-to-one correspondence between the shift magnification and the controller output signal.

Through the above introduction, Hydraulic Valves Supplier hopes that you can simply refer to the content of this article in future use.

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