DESCRIPTION
It is suitable for freeze drying of bulk (liquid, paste, solid) conventional materials, and can be used to pick up the flask outside the drying chamber to dry the material that is frozen on the inner wall of the bottle. At this time, the flask is used as a container to be connected to the outside of the drying oven. On the tube, the material in the flask is heated at room temperature, and the multi-manifold switch device can be used to remove or load the flask as needed without stopping the machine.