1 / 34

Special Centrifugal Pumps

Proved for over 60 years in Fertilizer Industry Chemical / Pharmaceutical Industry Power Plants. Special Centrifugal Pumps. Special Centrifugal Pumps. Bungartz system since 1930 Contactless hydrodynamic shaft seal by back vanes or additonal seal expeller. Advantages of System Bungartz.

anne
Download Presentation

Special Centrifugal Pumps

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Proved for over 60 years in Fertilizer Industry Chemical / Pharmaceutical Industry Power Plants Special Centrifugal Pumps

  2. Special Centrifugal Pumps Bungartz system • since 1930 • Contactless hydrodynamic shaft seal • by back vanes or additonal seal expeller

  3. Advantages of System Bungartz • Sealing of shaft clearance (rotating shaft – standstill casing) hydrodynamic by additional vanes • During operation no extra seal required (for example stuffing box or mechanical seal) • Saving of a maintenance part

  4. Back vanes H2 H2 vanes HS Hydrodynamic sealing

  5. Pump with packing Friction between packing and shaft Lubrication required wear Leaking not avoidable Comparison Bungartz-Pump • No friction between packing and shaft • No lubrication required • No wear • No leaking during operation

  6. Pump with packing Regular check Comparison Bungartz-Pump • Maintenance-free • Safety operation during long operation

  7. Type: MOR • for small suction head • < 3-4 mCl • with one impeller • vanes < back vanes

  8. Type: UMOR • For high suction head • Up to 30 mCl • With additional seal expeller

  9. Heavy duty bearing bracket • Big shaft • Bearing design for worste case • There are pumps in operation, we have delivered 40 years ago

  10. Model M-UMOR Circula-tion port Back vanes vanes Centrifugal governor Stuffing box Seal expeller

  11. Design: M-MOR • wearing plates with simple geometry • wearing plates are cheap spare parts • wearing plates are also available in materials with high hardness

  12. MOS (without flight governor)

  13. Design: SK-MOR • Welded construction • Materials available, which are not castable • for example Zirconium, Titanium, Tantal • Using of homogeneous milled materials

  14. Design: E -MOR • Cast iron coated with rubber

  15. Design: P-Si-MOR • Pump of Silicon Iron • For very corrosive fluids (80%H2SO4, t = 160°C) • additional amoured with grey cast iron

  16. Fertilizer Industrie Ammoniumnitrat Phosphoric Acid Sulphuric Acid Urea Melt Example for Applications

  17. Ammoniumnitrat (96-98%) • With heating • With heat detector connections • With drain device • With Connections for flushing

  18. Ammoniumnitrat (96-98%)

  19. 98% AN - Melt • Liquid near the boiling point • Special pump with low NPSH

  20. 99,6% AN-Melt • T = 175°C

  21. Ammoniumnitrat (max 70%) • With mechanical seal • Throttle bushing

  22. Sulphuric Acid • Horizontal Pump • Type MOR (98% Sulphuric Acid, tmax 90°C) • Type P-Si-UMOR ( Sulphuric Acid, t > 100°C, with solids) • Vertical Pumps • With bearing in the liquid • Without bearings in the liquid

  23. Sulfuric Acid • Duplexmaterials • Nickel based alloys • Silicon Iron

  24. Sulphuric Acid • Hydrodynamic shaft seal • T > 100 °C • No problems with solids

  25. Sulphuric Acid

  26. Phosphoric Acid • Horizontal Pumps Type M-UMOR • Vertical Pumps Type T (without bearings in the liquid • Material depending on the concentration and the solids (for example Gypsum)

  27. Phosphoric Acid • M-MOR or M-UMOR • With wear plates • similar Sanicro28 • also for gascontaining liquids

  28. Phosphoric Acid • Without bearings in the liquid • lenght up to 1,2m

  29. Nitric Acid • For high suction heads • 1.4301 (middle concentration) • 1.4361 (high concentration)

  30. Nitric acid

  31. Urea Solution and Urea Melt Vacuum 0,3 bar abs • T = 140 °C

  32. Urea Melt • with stuffing box • with heating

More Related