It is typically important to arrange various auxiliary elements while pneumatic valves are being used in order to enhance their functionality or efficiency. Air filters, reversing solenoid valves, limit switches, electrical positioners, etc. are typical pneumatic valve accessories.The air filter, pressure reducing valve, and lubricator are three air source processing components that are assembled as pneumatic triple parts in pneumatic technology. These components are used to purify and filter the air source entering the pneumatic instrument and decompress it to the instrument’s rated air source. The power transformer in the circuit works in a manner equivalent to the pressure.

Different kinds of pneumatic valve attachments

Dual-position valve opening and closing control with a double-acting pneumatic actuator. (double entendre)

When the air circuit of the circuit is shut off or fails, the valve will automatically open or close thanks to a spring return actuator. (Uniform acting)

Single solenoid valve: when power is applied, the valve opens or closes; when power is removed, the valve opens or closes (explosion-proof type is offered).

Double solenoid valve with memory function and explosion-proof construction that opens when one coil is energized and closes when the other coil is energized.

Limit switch feedback device: communicate the valve’s switch position signal over a distance (explosion-proof models are also available).

Electric positioner: Adjusts and controls the medium flow of the valve (explosion-proof type is available) in accordance with the size of the current signal (standard 4-20mA).

Pneumatic positioner: change and regulate the valve’s medium flow in accordance with the air pressure signal’s size (labeled 0.02-0.1MPa).
Electrical converter (explosion-proof variant available): Convert current signal into air pressure signal for use with pneumatic positioner.

To stabilize the air supply, clean, and lubricate moving parts, air source treatment includes three parts: an air pressure decreasing valve, a filter, and a lubricator.

Manual operating mechanism: In unusual circumstances, automatic control can be manually overridden.

Selecting accessories for pneumatic valves:

Pneumatic valves are intricate automatic control devices made up of different pneumatic parts. Users must choose carefully based on control requirements.

1. Double-acting type, single-acting type, model specification, and action time for pneumatic actuators.

2. Single control solenoid valve, double control solenoid valve, operating voltage, and explosion-proof type solenoid valves are available.

3. Signal feedback includes the following: a mechanical switch, a proximity switch, an output current signal, a usage voltage, and an explosion-proof type.

4. Locator: 1 electrical, 2 pneumatic, 8 current, 4 air pressure, 5 electrical converter, and 6 explosion-proof types.

5. Air source treatment with three components: two lubricators and a filter pressure reduction valve.

6. Mechanism for manual operation.