Used BALZERS BAK #164026 for sale

BALZERS BAK is an evaporator used for a variety of processes such as distillation, concentration, drying, and waste reduction. It is a tube-type evaporator featuring a horizontal configuration with a rotating mixer or baffles to ensure uniform heat transfer. The evaporator is adept at handling liquid mixtures that contain delicate materials, such as sensitive proteins or other fragile compounds. In operation, a liquid feed charge enters the evaporator at one end and flows horizontally through the tubes, while an external heat source is used to vaporize the liquid. The vapor produced is discharged at the opposite end of the evaporator where a condenser can be used to collect it. A mechanical rotary valve is used to control the flow of the vaporized substances inside the evaporator to maintain a consistent temperature for optimal performance. This rotary valve also reduces process waste and increases temperature control. The evaporator incorporates a horizontal mounting of the vaporizing tubes in order to produce improved vaporizing characteristics. This configuration also provides excellent turbulence in the evaporator vessel for improved heat transfer. The tubes are equipped with mechanical baffles to ensure that liquid and heat transfer into and out of the evaporator from all sides. This eliminates the need for tube in tube-in-shell designs and helps to improve efficiency. The tubes feature internally and externally finned tubes which help to increase the surface area, providing greater evaporation performance. An added bonus of the fins is that they reduce fouling and scaling by improving the mixing ability of the evaporator. The tubes also feature a mechanical seal to prevent leakage and ensure optimal performance. BAK evaporator boasts excellent heat transfer rate and is capable of performing with no phase change and no enthalpy gain. This makes the evaporator highly energy efficient and cost effective, making it an ideal choice for evaporative processes. The low maintenance design and construction of the unit also makes it a reliable and durable solution for various applications.