Suitable for petrol, oil and diesel fuel tanks
Adjustable anti-siphon/security valve for tanks of between 1.5 and 3m of height level difference, to avoid fuel spills or liquid draining by gravity in the event of damage or leakages during installation.
It acts like a check valve that guarantees that the suction tube is not unprimed.
Built in pressure relief valve to avoid overpressure in hoses, pumps or meters that could be caused by the climate etc.