Overfill Prevention Valve
Designed to act as the fill point on both metal and plastic diesel tanks. It physically closes the inlet to the tank should the fuel level reach its maximum during delivery. This prevents the tank from being overfilled or bursting and hence reduces the risk of pollution and an expensive clean-up operation. It comes complete with fitting flange, O-Ring and Locking Nut so that it can simply be fitted through a 2″ hole cut into the top of the tank.