ATL inline vent valve, with 8mm push on tails for nitrile rubber type fuel hose. This model features a pressure relief capability, which releases pressure if it reaches 50mbar in the tank and a 5mbar vacuum for pressure equalisation. Anodised red for corrosion protection, all fuel tanks need to be vented, otherwise as the fuel is used, the tank will collapse as a vacuum is created. These vent valves allow air to replace the fuel, but in the event of the car rolling over, the valve closes and prevents fuel from escaping from the fuel cell.
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