Description
3/2 Way Pneumatic Air Pilot Valve – SK320 Series Single Acting
The SK320 Series is a high-quality range of 3/2 way single-acting pneumatic air pilot valves designed for reliable control of pneumatic cylinders, actuators and automation systems. Available in port sizes from 1/8" to 1/2" BSP, the range offers normally closed operation as standard with a normally open option, making it suitable for a wide variety of compressed air control applications.
Unlike electrically operated solenoid valves, the SK320 Series is actuated entirely by pilot air pressure, making it ideal for hazardous environments, remote pneumatic control systems and applications where electrical power is unavailable or undesirable. The compact aluminium construction provides fast response, dependable operation and long service life.
Why Choose the SK320 Series?
✓ External air pilot operation
✓ Available in 1/8", 1/4", 3/8" and 1/2" BSP
✓ Normally closed as standard
✓ Optional normally open version (SK320N)
✓ Compact aluminium construction
✓ Fast pneumatic response
✓ Suitable for hazardous environments
✓ Reliable long-life design
✓ BSP, NPT and Rc thread options
Valve Function & Operation
Function: 3/2 way single acting Normally closed
Optional normally open (SK320N)
Operation: External air pilot
Pilot pressure: 1.5 to 7 Bar
Port sizes:
1/8" BSP
1/4" BSP
3/8" BSP
1/2" BSP
Optional threads: NPT and Rc
Operating pressure: 0 to 8 Bar
Maximum working pressure: 10 Bar
Proof pressure: 9.9 Bar
Effective orifice area:
1/8" – 14mm²
1/4" – 18mm²
3/8" – 35mm²
1/2" – 70mm²
Ambient temperature: -10°C to +80°C
Construction
Body: Aluminium alloy
Seals: NBR
Media: Compressed air and Inert gases
Dimensions & Weight
Body widths:
1/8" & 1/4" – 26mm
3/8" – 30mm
1/2" – 34mm
Approximate weights:
1/8" & 1/4" – 180g
3/8" – 375g
1/2" – 595g
Typical Applications
Pneumatic cylinders
Air actuators
Factory automation
Machine building
Process control
Compressed air systems
Control panels
OEM machinery
Remote pneumatic control
Hazardous area pneumatic systems
Quality & Reliability
Every SK320 Series pneumatic air pilot valve is individually function tested before dispatch to ensure reliable operation and consistent performance. The robust aluminium body, external pilot operation and compact design provide dependable switching for demanding industrial pneumatic control applications.
Technical Information
Valve type: 3/2 way pneumatic air pilot valve
Operation: External air pilot
Pilot pressure: 1.5 to 7 Bar
Maximum working pressure: 10 Bar
Media: Compressed air and inert gases
HS Code: 8481201000
Why Buy From Solenoid Valve World?
✓ Large UK stocks available
✓ Technical support from pneumatic specialists
✓ BSP, NPT and Rc thread options
✓ Genuine replacement pneumatic valves
✓ Free next working day UK delivery
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