ANTI-RETURN valve, where to install it to prevent air from entering the fuel circuit

En este video les EXPLICO donde se instala la válvula antirretorno para impedir entre aire dentro del sistema de combustible y dificulte o impida el arranque

NON RETURN valve, where to install it to prevent air from entering the fuel circuit

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Non Return Valve, Aluminium Fuel Non Return Check Valve One Way Petrol 6/10/12MM Optional for Carburetors and Low Pressure Fuel Systems (12mm 1/2 Aluminum Alloy) : Automotive