- Anti-siphon valve with adjustable security system for tanks with different diameters, to avoid the liquid pouring by gravity in the event of breaks or leakages in the installation. It acts like a check valve that guarantees that the suction tube is not unprimed.
- Its installation is obligated on all the aerial tanks according to the "Reglamento de Instalaciones Petrolíferas" (Petroleum Installation Regulation) and "la Instrucción Técnica Complementaria MI-IP04" (MI-IP04 Technical Complementary Instruction).