Compressor Solenoid Valve
Compressor solenoid valves for unloaded starting, unloading, and compressed air lines: pilot-operated, normally open and normally closed Tork models.
Products (14)
- Tork S5010 Compressor Solenoid Valve, Pilot-Operated, N.C., 1/2″, 0.5–16 Bar, 12 VDC – $79.56
- Tork S5012 Compressor Solenoid Valve, Pilot Operated, N.O., Tube-Type, 1/2'', 0.5–16 Bar, 12 VDC – $88.78
- Tork S5013 Compressor Solenoid Valve, Direct-Acting, N.C., High Pressure, 1/4", 0 - 50 Bar, 12 VDC – $53.76
- Tork S5013 Compressor Solenoid Valve, Pilot-Operated, N.C., High Pressure, 1/2", 0.5-40 Bar, 24 VDC – $84.17
- Tork S5014 Compressor Solenoid Valve, Pilot Operated, N.O., Inline, 1/2", 0.5-40 Bar, 12 VDC – $88.78
- Tork S5015 Compressor Solenoid Valve, Direct Acting, N.C., 3/2-Way, 1/4'', 0–10 Bar, 12 VDC – $88.78
- Tork S5016 Compressor Solenoid Valve, Pilot-Operated, N.O., 1/2'', 0.5 - 16 Bar, 24 VDC – $86.93
- Tork S5018 Compressor Solenoid Valve, Direct-Acting, N.C., 3/2-Way, 1/4", 0–10 Bar, 12 VDC – $57.45
- Tork S5019 Compressor Solenoid Valve, Pilot-Operated, N.O., High Pressure – Request a quote (out of stock)
- Tork S5040 Compressor Solenoid Valve, Pilot-Operated, N.C., 1/2", 0.35–16 Bar, 12 VDC – $85.09
- Tork S5041 Compressor Solenoid Valve, Pilot-Operated, N.O. – Request a quote (out of stock)
- Tork S5078 Compressor Solenoid Valve, Direct-Acting, 2/2 N.C., Small Body, 1/4", 0-10 Bar, 12 VDC – $58.37
- Tork S5078P Compressor Solenoid Valve, Pilot-Operated, Normally Closed, Compact Body – Request a quote (out of stock)
- Tork S5093 Compressor Solenoid Valve, Pilot-Operated, N.C. – Request a quote (out of stock)
Brands: Tork
What does a compressor solenoid valve do?
Compressor solenoid valves are valves used for automatic control of air compressors and compressed air lines. Their main functions include venting the line air at startup to enable unloaded (no-load) starting of the compressor, relieving the discharge line when the compressor stops, opening and closing the air tank outlet, and controlling compressed air distribution lines. A correctly selected valve reduces the load on the compressor motor at startup.
Model types
- Pilot-operated, normally open models: Remain open when de-energized; used to vent the line when the compressor stops.
- Pilot-operated, normally closed models: Open when energized to control the air line.
- Various connection sizes: Selection can be made according to the compressor and line bore.
The NO and NC designations in product names indicate the de-energized position of the valve, while model codes specify the connection size and features.
Selection criteria
The valve's operating pressure range must cover the compressor's maximum pressure. Because pilot-operated valves require a certain minimum pressure differential to operate, the valve's behavior at near-zero pressure should be evaluated for the application. The coil voltage must be compatible with the compressor's control circuit. When replacing an existing valve, the connection size, NO/NC status, and coil voltage must be identical.
Installation and maintenance
Water and oil vapor in compressed air can shorten the life of valve seals; the air tank water should be drained regularly and filters should be installed at appropriate points in the line. The valve must be installed in accordance with the flow direction arrow. Air leaking from the valve is a sign of seal or diaphragm wear; a repair kit or replacement may be required.
Frequently asked questions
Why is unloaded starting important?
It prevents the compressor motor from working against pressure at startup, reducing stress on the motor and electrical circuit.
Should I choose NO or NC?
It is determined by the compressor's control diagram. Taking the existing valve type as a reference is the safest approach.
Why does the valve keep leaking air?
The diaphragm or seal may be worn, or dirt may have entered the valve seat.
Can a general-purpose valve be used on an air line?
It can be used if the pressure and flow values are suitable. For compressor control circuits, valves specifically designed for this purpose are preferred.
How do I identify the coil voltage?
The voltage and type information are printed on the label on the existing coil.
Which valves are available for applications other than compressors?
See the solenoid valves category for all options.