1 mbar system with (1) stainless steel type LELY 250 / AB.1DO.4B.4 vacuum pump, manufactured by Siemens & Hinsch Gmbh (SIHI), fabrik #3277672 (1) 30 liter stainless steel vertical pressure tank, manufactured by SIHI, fabrik #3045141, weld dished top and bottom, (1) 2.1 square meter stainless steel tube and shell horizontal heat exchanger, manufactured by A.Hering, fabrik #60/42422-1, pressure tube side 6 bar @ 90 degrees C, shell 8 bar @ 90 degrees C,