How do Air-Locks work?
Air‑lock devices are installed in pneumatic control systems to automatically hold a valve’s last position if the air supply fails. They sense a loss of supply pressure and trap air within the actuator, preventing unwanted valve movement until the air supply is restored.
Advantages of Air-Locks...
• Maintains valve position during air supply failure
• Improves process safety and stability
• Prevents unplanned shutdowns
• Compact and reliable
• Improves process safety and stability
• Prevents unplanned shutdowns
• Compact and reliable
Technical Parameters:
Pressure Ratings
Typical: PN10, PN16, PN25, PN40, CL150, CL300, CL600
Temperature Range
Typically –20 °C to +80 °C Extended‑temperature models: –40 °C to +120 °C (Dependent on actuator and system limits)
Size Range
Air connection sizes typically ¼″ to 1″ NPT or BSP
Materials
Anodised aluminium, stainless steel, carbon steel, elastomers (NBR, FKM)
Industry Application:
EFW
Oil & Gas
Power
Media Type:
Gas
