Vapour dividing head for low loadings

With silvered high vacuum jacket, glass valve, solenoid controlled, 2 jacket. Thermometer branche GL 18 for 100 mm built-in length, reflux condenser with vacuum connection (GL 18), ball S 29 for distillate condenser. The jacketed thermometer branches prevent condensation below the valve, which could cause an error in the reflux ratio allow loadings. Cooling water connection GL 14