with five impellers the discharge pressure 814 psi This is the high stage that is part of a two stage system, designed to compress methanol, but can be used for other gas. compressor The casing design pressure is 1080 psig for the inlet and discharge. The casing design temperature at the discharge is 480 degrees F. and the maximum operating temperature is 480 degrees F. Both the inlet and discharge are hydrotested at 1620 psig. The first critical speed is 6400 rpm, the maximum continuus speed is 10908 rpm. Nozzle orientation is up.(vertical) The compressor is base mounted along with the first stage compressor (IPP # 210369) and shares a common shaft. The entire compression train is designed to be driven by a steam turbine. See IPP stock # 210371.