Pros and Cons of Vacuum pump
The rotary piston pump has many advantages:
- Relatively cheap and high capacity at deep vacuum levels (<0.01 Torr)
- The rugged design allows for a long life
- Can allow trace amount of solvents
The limitations of this type of vacuum pump are as follows:
- Cannot handle liquids or any process carryover because these will damage the internals of the pump
- Cannot easily handle condensable vapors
- Solvent recovery is not possible due to oil contamination
- Designs can be noisy