These gauges are widely used to measure the air, water, and gas pressure in various hydraulic and pneumatic applications.Nominal Size (mm) 40, 50, 63, 80, 100, 150, 250 Scale Range 0.. Vacuum to 700 kg/cm2 & above on request Accuracy in FSD 1.6%Thread Connection 1/8″, 1/4″, 3/8″, 1/2 ” BSP & NPT, M-10, M-12, M-mounting of Gauge Bottom, Surface, Back, Panel with 3 holes, Panel with bracket Case and Bezel Drawn steel, SS 304 Pressure Elements Bourdon Tube Diaphragm Nil Wetted Parts Brass, SS 304 Application Chemical, Petrochemical, Plastic, Paper Pneumatic Control System and Air conditioning Optional Liquid Filled.