This unit works with line of evaporators. Features a vacuum controller, condenser, waste liquid collecting trap (bottles), recovery flask, and exhaust gas absorber cartridge that are compactly integrated in one unit. A complicated pressure setting is not necessary. Normal control allows to change the set pressure value anytime. Program control memorizes the proper vacuum rate of 10 versions of typical regulated solvents. Also features excellent corrosion resistance by using solenoid valve of Teflon diaphragm and sensor which is anti-corrosive to organic solvents.