The ATL Tank Vent Valve allows the fuel tank to maintain a constant and safe status by minimising build up of pressure and allowing the tank to vent should a vacuum be experienced. This particular vent features a -6 JIC thread size, which is suitable for an in-line installation. This particular variant contains a pressure relief facility 'blowing off' should the pressure within the tank build up to 200mbar, a float chamber valve and a gravity activated rollover valve ceasing fuel flow should the vehicle roll over, ensuring this meets FIA requirements. FIA Approved