The WZ series single-effect external circulation vacuum concentrator is applicable for evaporation and concentration of liquid materials in pharmacy, food, chemical, and light industries. The concentrating time is short and the evaporating speed is high, which protects the heat sensitive materials from being damaged. The system is composed of heater, evaporator, defoamer, condenser, cooler, and liquid receiving tank. The material-contacting parts are all made of stainless steel.

The series of single-effect evaporators have three forms:

I. WZ single-effect external circulation vacuum concentrator is the ordinary type used for evaporation of water solution.

II. WZH single-effect external circulation vacuum recovery concentrator is the alcohol recovery type used for evaporation of alcohol solution. It has higher cooling area to ensure the alcohol recovery. Its recovery strength reaches 70-85℃, the alcohol consumption rate is less than 5% and the alcohol temperature after the recovery is less than 40℃.

Ⅲ. WZS single-effect external circulation vacuum ointment collection concentrator is used for thick ointment collection. After the normal single-effect evaporation, it transfers liquid materials to the evaporating chamber, then closes all valves connecting the spraying tube and circulating tube in the heating chamber and evaporating chamber; it then reduces the pressure in the evaporating chamber to create a vacuum environment for concentration, where the material's specific gravity can be increased to 1.35-1.45.

The equipment includes a control system enabling whole-course temperature control, vacuum automatic adjustment, liquid level control, and automatic water discharging, as well as real-time recording and saving of data. The automatic concentrator with explosion-proof design can also be offered according to customer requirements.