Druck PV620-IS [PV621-IS] Intrinsically Safe Pneumatic Pressure Station for DPI 620 Genii-IS Series, 300 psi (20 bar) The Druck PV621-IS Intrinsically Safe Pneumatic Pressure Station is a pneumatic pressure generator for pressures 95% vacuum to 300 psi (20 bar). It is designed for stand-alone operation as a pressure generator and can replace conventional hand pumps to provide greater efficiency and ease of use. The pressure station is furthermore ATEX and IEC approved for use in hazardous areas. Combining the PV621-IS Pressure Station with a PM620 pressure module and a DPI620G-IS calibrator creates a uniquely capable, self-contained pressure calibrator. The PV621-IS Pressure Station can also be used on the workbench as a comparator.