The laboratory vacuum equipment needs to be used with other laboratory instruments and is not a single-operation device. With different devices, the purpose is different.
Circulating Water Vacuum Pump
When you use a rotary evaporator, you can use a circulating water vacuum pump. It has the advantage of being resistant to various solvents and can be evacuated to -0.098 MPa. Depending on the volume of the evaporator, different models can be selected.
Diaphragm Vacuum Pump
The portable oil-free diaphragm vacuum pump can be combined with a vacuum filter device, which has the advantage of small volume and ensures that the filter medium is not contaminated. It can help to complete vacuum filtration, solvent filtration, vacuum distillation, solid phase extraction and so on.
Rotary Vane Vacuum Pump
The rotary vane vacuum pump can be used together with a vacuum drying oven. The vacuum drying oven needs to maintain a certain degree of vacuum in the working chamber, and has a strong pumping force, but you need to pour the oil into the pump before work.