The FE series of two stage self-driven spring loaded regulators are widely used in both civil and industrial installations using natural gas, LPG and other non corrosive gases. They are designed for either direct installation to a gas meter or use in general pipeline work. They can be mounted in any position provided they are protected from weather. Thanks to the concept of double regulation stage, it is possible to achieve high accuracy and high operating reliability. Where the installation is in an enclosed area, the internal relief vent can be piped to outside. Simple installation procedure. The regulators are manufactured according to EN13785.