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R 5

R 5 . Rotary Vane Vacuum Pumps. R5. R 5 . OIL RECIRCULATING PUMP. Inlet screen. Exhaustfilter. Check valve. Oil return line. Oil return valve. vanes. Gasballast. Rotor. Oil level. Oil injection. Oil filter. R 5. Oil recirculated rotary vane vacuum pump R 5. R 5. R 5 cut. R 5.

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R 5

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  1. R 5 Rotary Vane Vacuum Pumps R5 Vakuumschulung R 5

  2. R 5 OIL RECIRCULATING PUMP Inlet screen Exhaustfilter Check valve Oil return line Oil return valve vanes Gasballast Rotor Oil level Oil injection Oil filter Vakuumschulung R 5

  3. R 5 Oil recirculated rotary vane vacuum pump R 5 Vakuumschulung R 5

  4. R 5 R 5 cut Vakuumschulung R 5

  5. R 5 R 5 Animation Vakuumschulung R 5

  6. Fine Vacuum Rough Vacuum R 5 ultimate pressure of R 5 Versions R 5 Ultra R 5 RA R 5, RC, KC Ultimate pressure, abs. [mbar] Vakuumschulung R 5

  7. R 5 typical R 5 pumping speed curve Vakuumschulung R 5

  8. R 5 Vacuum Classes In Vacuum Technology Pressures are measured between 1000 mbar to 10-12 mbar . According to DIN standard 28400, there are 4 Vacuum Classes: Rough Vacuum = 1000 mbar to 1,0 mbar Fine Vacuum = 1,0 mbar to 10-3 mbar High Vacuum = 10-3 mbar to 10-7 mbar Ultra High Vacuum = smaller then 10-7 mbar Vakuumschulung R 5

  9. R 5 R 5 Oil- recirculating pumps • The oil has the function of: • Lubrication • Sealing • cooling • The pump oil characteristics: • Low vapor pressure • Thermal stability • Oxidative stability • Viscosity stability • Water separation • Lubrication of moving parts • Chemical resistant Mineral Paraffin Esther PAO PFPE Vakuumschulung R 5

  10. R 5 Vakuumschulung R 5

  11. R 5 Operation Recommendations • In humid processes run the pump before and after the batch to clean it . • After run always with Gas ballast fully open. • Use the correct oil for the application. • Use Inlet filters or separators. • provide sufficient ventilation at the installation • avoid to many start stops to protect the electric motor. • follow the instruction manual. Vakuumschulung R 5

  12. R 5 Gas ballast Rotary vane pumps have to be equipped with a device which facilitates pumping of certain quantities of process gases so as to maintain their foothold in chemical vacuum applications. The most feasible solution to this is the gas ballast principle. With the gas ballast method developed by Gaede a metered quantity of gas is admitted continuously into the expansions chamber of the pump; therefore, the opening pressure of the outlet valve is already reached before the vapor is compressed to a saturation vapor pressure which corresponds to the pump temperature and condenses. The inlet of gas, usually atmospheric air but also specially selected process gases, starts immediately after the vane fitted into the rotor have shut off the expansion chamber from the intake port, reducing the negative effect which may cause a deterioration of the ultimate pressure. More easy: Low pump temperature and no or only a little gas ballast flow = condensation High pump temperature and high gas ballast flow = no condensation Vakuumschulung R 5

  13. R 5 Gas ballast Operating without Gas ballast: 2 1 The expansion chamber is shut off by the vane, the compression starts. Pumping saturated atmosphere from a vessel. 4 3 The further compression opens the exhaust valve but condensation took already place with the result of oil emulsion. The volume is compressed to the saturation vapor pressure the vapor condenses. The exhaust valve did not open yet. Vakuumschulung R 5

  14. R 5 Vakuumschulung Gasballast Operating with Gas ballast: 2 1 The expansion chamber is shut off by the vane, the compression starts. The expansion chamber is filled with gas ballast volume. Pumping saturated atmosphere from a vessel. gbv. 3 3 The opening pressure of the exhaust valve is reached before the vapor is compressed to the saturation vapor pressure. Vapor and gas are discharged without condensation. The pump is exhausting cont. vapor and gas. Vakuumschulung R 5

  15. Service on R 5 pumps Oil change Oil filter change Exhaust filter change Cleaning of: Inlet filter Gas ballast filter Fan cover Radiator Pump surface Inlet screen Maintenance on R 5 pumps Bearings Gaskets Vanes Wearing parts Settings R5 Service an R 5 Pumps Vakuumschulung R 5

  16. R 5 Vakuumschulung Maintenance Oil recirculating Rotary Vane Pump (*) only by an electrician Vakuumschulung R 5

  17. Max Min R5 Service on R5 Pumps 1. Cleaning jobs: Inlet flange 6 month Inlet filter weekly Gas ballast monthly Fan cover 6 month I. M. 2. Once a year 500-2000 h 500-2000 h daily Vakuumschulung R 5

  18. R 5 Service on R5 Pumps No Pump fails without a Sign ..! Possible sources: Indicators are: • bearings • vanes • shaft seals • lack of oil • power connection • inlet screen • inlet checkvalve • el. motor • gas ballast valve • noise • power consumption • pressure • Volume • oil leaks • temperature Vakuumschulung R 5

  19. R 5 Indicators: Possible sources: • noise • power consumption • pressure • Volume • oil leaks • temperature • bearings • vanes • shaft seals • lack of oil • power connection • inlet screen • inlet checkvalve • el. motor • gas ballast valve Vakuumschulung R 5

  20. R 5 Indicators: Possible sources: • noise • power consumption • pressure • Volumen • oil leaks • temperature • bearings • vanes • shaft seals • lack of oil • power connection • inlet screen • inlet check valve • el. motor • gas ballast valve Vakuumschulung R 5

  21. R 5 Indicators: Possible sources: • noise • power consumption • pressure • Volume • oil leaks • temperature • bearings • vanes • shaft seals • lack of oil • power connection • inlet screen • inlet checkvalve • el. motor • gas ballast valve Vakuumschulung R 5

  22. R 5 Indicators: Possible sources: • noise • power consumption • pressure • Volume • oil leaks • temperature • bearings • vanes • shaft seals • lack of oil • power connection • inlet screen • inlet checkvalve • el. motor • gas ballast valve Vakuumschulung R 5

  23. R 5 Indicators: Possible sources: • noise • power consumption • pressure • Volume • oil leaks • temperature • bearings • vanes • shaft seals • lack of oil • power connection • inlet screen • inlet checkvalve • el. motor • gas ballast valve Vakuumschulung R 5

  24. R 5 Indicators: Possible sources: • noise • power consumption • pressure • Volume • oil leaks • temperature • bearings • vanes • shaft seals • lack of oil • power connection • inlet screen • inlet check valve • el. motor • gas ballast valve Vakuumschulung R 5

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