The Pietro Fiorentini FT 518 is a lever-operated regulator designed for high to medium-pressure applications. It is designed with multiple, replaceable orifices as an unbalanced pressure regulator suitable for use with previously filtered, non-corrosive gases.

The FT 518 features a top-entry design that simplifies maintenance by allowing parts to be serviced directly in the field without removing the body from the pipework. When active, it prevents undesirable slam shut trips due to minor internal leakages or ambient temperature variation. Its modular construction allows for easy retrofitting with a slam shut valve or an integral full monitor, tailored to your specific needs.

The FT 518 is primarily used for farm tap applications, high-pressure transmission systems and for medium-pressure natural gas distribution networks.