AV5A Air Admittance Valve With Couplings


The AV5A is manufactured in aluminum alloy. It has a control knob attached to a screw-actuated plunger: turn the control knob clockwise to close the valve. A nitrile ‘O’ ring seals the plunger to the valve body.

The valve can be connected directly, pipeline supported or panel mounted, and is connected to the vacuum system with the Edwards SC5 coupling (supplied).

Technical data  
Materials of construction  
Body HE30 aluminum / nickel plated brass
Plunger HE30 aluminum
Seal Nitrile
Leak rate across seat 10-7 mbar ls-1 / 8 x 10-8 Torr ls-1
Leak rate through body 10-1 mbar ls-1 / 8 x 10-2 Torr ls-1
Panel mounting Ø 17 mm / Ø 0.66 in hole, 3 mm / 0.117 in maximum thickness
Vacuum connections SC5 couplings or 3/8 inch BSP threaded body and bonded seal
Weight 85  g / 3 oz