With fine adjustment valve. Chemical resistant. Specially designed for use on rotary evaporators. Features: Digital vacuum gauge , displays the current pressure in the system Fine adjustment valve for continuously variable vacuum regulation Safety venting valve enables the piston to be ventilated in order to interrupt the evaporation process Separate on/off switch for the pump Inert gas connection Delivered fully assembled Advantages: Safe evaporation control High recovery rates even with solvents that have very low boiling points Gentle distillation thanks to closed system layout Continuously variable regulation of the vacuum via fine adjustment valve Once the required vacuum has been achieved, the fine adjustment valve can be closed and the pump can be switched off Maintenance-free and quiet Vacuum system LABOXACT ® SEM series Delivery incl. base plate, separator, condenser, fine adjustment valve, vacuum gauge (digital), safety venting valve, wiring and hoses.