Equipment installed at the extremity of the vent pipe that has the function of maintaining the line closed when the system is not operating, thus avoiding the continuous release of gases to the atmosphere. Furthermore, it prevents the entry of water, insects, and other debris into the Underground Fuel Storage Tank.

The Zeppini Ecoflex Pressure and Vacuum Vent Valve uses a flame-retardant screen system produced in AISI 304 stainless steel, easy to install and maintainance keep. In addition, it is a fundamental component in Vapor Recovery Systems.