The two-stage self-driven pressure regulators FB series  are widely used both in civil and  industrial installations using natural gas, LPG or non-corrosive gases. These regulators are designed  to be fitted directly  to the  users' flow meter or assembled on riser shafts for civil uses.

They can be installed in any position provided that they are protected against atmospheric factors. The internal relief valve vent can be run  outside if installed in enclosed spaces  or for underground plant.

Thanks to the concept of double regulation stage, it is possible to achieve a: high accuracy; high operating reliability. Simple to install. These regulators are manufactured to UNI 8827.