Druck Precision Pressure Standards

Model 2475 Unique Helium Lubricated Piston Gauge System 

For specialized applications that require calibration of pneumatic devices over 207 bar, especially those used for O2 service, the Model 2475 Helium Piston Gauge offers a unique solution. The Model 2475 is capable of generating pressures from 12 to 1035 bar using only helium gas as the media. Helium eliminates the potential problems of nitrogen at high pressure such as the supercritical solvent action and long thermal stabilization times. And, since the Model 2475 piston/cylinder is gas-operated and gas-lubricated, there is no potential for contamination of the device under test.