Italian Giuliani anello brand gas pressure reducing valve series Optional models: Pressure resistance of 1 kilogram includes: FG1B15, FG1B20, FG1B25, FG1B32, FG1B40, FG1B50, FG1B50/40 Pressure resistance of 0.5 kg includes: FGDR15, FGDR20, FGDR25, FGDR32, FGDR40, FGDR50/40, FGDR50 Pressure resistance of 4 kilograms includes: ST4B15, ST4B20, ST4B25, ST4B40, ST4B50 Material: Aluminum valve body, with internal components made of aluminum, steel, copper, and synthetic materials. The diaphragm and gasket are made of nitrile rubber |