Pneumatic valve manufacturer accessories and selection
In air technology, air filter, pressure reducing valve, oil mist three kinds of air source processing equipment called air multifunctional device, used to purify the air source into the air table, decompression to rated air source pressure, equivalent to the power transformer function, the following understanding of pneumatic valve accessories type and selection!
In the use of pneumatic valves, usually need to be equipped with auxiliary tools to improve the performance of pneumatic valves or use efficiency. Common accessories of pneumatic valves include air filters, reversing solenoid valves, limit switches, electrical positioning, etc. In air technology, air filter, pressure reducing valve, oil mist three kinds of air source processing equipment called air multifunctional device, used to purify the air source into the air table, decompression to rated air source pressure, equivalent to the power transformer function, the following understanding of pneumatic valve accessories type and selection!
Type of pneumatic valve support:
Pneumatic valve actuator: with 2 digit control valve open and close. (double action)
Spring return actuator: The valve opens and closes automatically when the air circuit is cut off or faulty. (single action)
Can provide a single solenoid valve (power supply valve switch, power failure valve switch) explosion-proof type.
Double solenoid coil solenoid valve: the valve opens after one coil is energized, the valve closes after the other coil is energized, with memory function (explosion-proof type can be provided).
Limit switch (remote send valve switch position signal (explosion-proof).
Positioning: according to the current signal (standard 4-20) mA) to adjust the control valve medium flow).
Air positioning: according to the pressure signal (00).02-0.1mpa) adjust the control valve medium flow.
Electrical converter: the current signal is converted to air pressure signal, and combined with pneumatic positioning (explosion protection).
Multi-function air source processing (including air pressure reducing valve, filter, oil mist, air source stability, cleaning, moving parts lubrication.
Manual operation mechanism: manual operation can be performed when automatic control is abnormal.
Pneumatic valve bracket selection:
Pneumatic valve is composed of a variety of pneumatic components of complex automatic control components, users need to control according to the need for detailed selection.
1. Pneumatic valve actuator: double acting type. Single acting type. Model and specification. Time of action.
2. Solenoid valve single control switch switch. Dual control switch. Use voltage. Explosion proof type.
3, signal feedback: mechanical switch, close switch, output current signal, use voltage, explosion-proof type.
4, positioning: electrical positioning, pneumatic positioning, current signal, air pressure signal, electrical converter, explosion-proof type.
5. Multi-layer air source treatment: filtration pressure reducing valve. Oil mist.
