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Air Interlock Valves

Liquip's Pneumatic Interlock Valve provide a pneumatic interlock on API adaptors, vapour adaptors or interlock bars.

The AIV3 2 way air valve is used to identify that a hose has been connected to the adaptor for either loading or discharge. It can also form part of the oneumatic circuit to ensure the tanker truck breaks are on, the emergency valve is open and the vapour vents are open before product can flow.


Features & Benefits
  • 3 port pneumatic spool valve.
  • Normally close operation.
  • Air supply to Port 1.
  • Acutated air signal out from Port 2.
  • Exhaust from Port 3.
Technical Information

3 x ¼" BSP ports.

Operating Pressure
850 kPa maximum operating pressure.

Standard Mounting to API490 adaptors VCM450 and GC300 guard bar.


Ordering Information

AIV3: Air Valve 3 Port with Push Button.

Associated Equipment

GC300 Seires: Vapour Gates

VCM450: Vapour Adaptor 4" Camlock.

API490 Seires: API adaptors.


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