Air vent valve.

  • Stainless steel construction.
  • Fully sealed, no leaks.
  • Proven positive lever mechanism.
  • Minimal liquid carry over.


The Armstrong 11AV automatic air vent valve has been designed to combine
the durability and corrosion resistance of Stainless Steel with a reliable, proven
operating mechanism to produce a highly reliable vent valve in the medium
capacity air venting range.

The design of the 11AV is very simple. It employs a float which actuates a
guided free floating valve.
There are no pivots to wear or create friction that could interfere with the
correct operation of the vent valve, and the lever guide ensures positive
closure under all conditions.

As a result of mange years of reliable service the Armstrong 11AV has
become and industry standard where medium capacity automatic air
air venting from fluid is required. Fueling Components holds the 11AV
in stock with a choice of orifice sizes and working pressures, with
particular emphasis on supplying the unit to vent air from filter vessels.

Detailed Specification:

Materials Of Construction: –
Body, type 304L Stainless Steel.
Valve and Seat, 440F heat treated Chrome Steel.
Float and Lever, type 304 Stainless Steel.
Connections: -Inlet 1/2″ BSPT female,
-Outlet 1/2″ BSPT female.
Maximum Body working Pressure: – 28 Bar.
Maximum Working Temperature: – 427 deg. C.