This vent check valve type is made with a directed overflow. This is useful if venting is required from a specified location / tank / room.

Aero valves are approved by all the most common classification societies

For pressure drop and flow rate, please contact us


  • Flame/Bug/Rat screen
  • Heating /Winterization
  • Additional mud chamber prevents mud from entering the valve (See Mud Chamber)
  • Mounting alternatives: Flanged, threaded or welment
  • Painting
  • Can be ordered in galvanized steel, stainless steel or higher Duplex steel qualities