1. Process Vacuum System Design and Operation;Ryans,1986
2. Check the vacuum ratings of your tanks;Wintner;Chem. Eng. V.,1991
3. Selecting vacuum systems;Ryans;Chem. Eng.,V.,1981
4. Designing steam jet vacuum systems;Birgenheier;Chem. Eng.,1993
5. Calculate air leakage values for vacuum systems;Gomez;Chem. Eng.,1991