The valve can be mounted vertically on the tank as a regular roll over valve which shuts off the tank breather (and therefore means of fuel escape) should the tank angle pass 90 degrees vertical. The valve can be used as a standard vent valve ideal for quick refuelling situations allowing the tank to 'breathe' and vapour escape without loss of fuel. The valve's by-pass is rated to 200mbar, which prevents pressure build up within the tank even in the event of a vehicle roll. We only use the most premium products on our NSX and M4 race cars, hence why we utilise this AN fitting in our build. These AN fittings can be used on fuel, oil and air jack systems on competition cars.
