Paul Bungartz GmbH&Co.KG, Germany 1 Special Centrifugal Pumps Proved for over 60 years in Fertilizer Industry Chemical / Pharmaceutical Industry Power Plants

Paul Bungartz GmbH&Co.KG, Germany 2 Special Centrifugal Pumps Bungartz system since 1930 Contactless hydrodynamic shaft seal by back vanes or additonal seal expeller

Paul Bungartz GmbH&Co.KG, Germany 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

Paul Bungartz GmbH&Co.KG, Germany 4 Hydrodynamic sealing HSHS H2H2 H2H2 vanes Back vanes

Paul Bungartz GmbH&Co.KG, Germany 5 Comparison Bungartz-Pump No friction between packing and shaft No lubrication required No wear No leaking during operation Pump with packing Friction between packing and shaft Lubrication required wear Leaking not avoidable

Paul Bungartz GmbH&Co.KG, Germany 6 Comparison Bungartz-Pump Maintenance-free  Safety operation during long operation Pump with packing Regular check

Paul Bungartz GmbH&Co.KG, Germany 7 Type: MOR for small suction head < 3-4 mCl with one impeller vanes < back vanes

Paul Bungartz GmbH&Co.KG, Germany 8 Type: UMOR For high suction head Up to 30 mCl With additional seal expeller

Paul Bungartz GmbH&Co.KG, Germany 9 Heavy duty bearing bracket Big shaft Bearing design for worste case  There are pumps in operation, we have delivered 40 years ago

Paul Bungartz GmbH&Co.KG, Germany 10 Model M-UMOR vanes Back vanes Seal expeller Stuffing box Circula- tion port Centrifugal governor

Paul Bungartz GmbH&Co.KG, Germany 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

Paul Bungartz GmbH&Co.KG, Germany 12 MOS (without flight governor)

Paul Bungartz GmbH&Co.KG, Germany 13 Design: SK-MOR Welded construction Materials available, which are not castable for example Zirconium, Titanium, Tantal Using of homogeneous milled materials

Paul Bungartz GmbH&Co.KG, Germany 14 Design: E -MOR Cast iron coated with rubber

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

Paul Bungartz GmbH&Co.KG, Germany 16 Example for Applications Fertilizer Industrie Ammoniumnitrat Phosphoric Acid Sulphuric Acid Urea Melt

Paul Bungartz GmbH&Co.KG, Germany 17 Ammoniumnitrat (96-98%) With heating With heat detector connections With drain device With Connections for flushing

Paul Bungartz GmbH&Co.KG, Germany 18 Ammoniumnitrat (96-98%)

Paul Bungartz GmbH&Co.KG, Germany % AN - Melt Liquid near the boiling point Special pump with low NPSH

Paul Bungartz GmbH&Co.KG, Germany ,6% AN-Melt T = 175°C

Paul Bungartz GmbH&Co.KG, Germany 21 Ammoniumnitrat (max 70%) With mechanical seal Throttle bushing

Paul Bungartz GmbH&Co.KG, Germany 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

Paul Bungartz GmbH&Co.KG, Germany 23 Sulfuric Acid Duplexmaterials Nickel based alloys Silicon Iron

Paul Bungartz GmbH&Co.KG, Germany 24 Sulphuric Acid Hydrodynamic shaft seal T > 100 °C No problems with solids

Paul Bungartz GmbH&Co.KG, Germany 25 Sulphuric Acid

Paul Bungartz GmbH&Co.KG, Germany 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)

Paul Bungartz GmbH&Co.KG, Germany 27 Phosphoric Acid M-MOR or M-UMOR With wear plates similar Sanicro28 also for gascontaining liquids

Paul Bungartz GmbH&Co.KG, Germany 28 Phosphoric Acid Without bearings in the liquid lenght up to 1,2m

Paul Bungartz GmbH&Co.KG, Germany 29 Nitric Acid For high suction heads (middle concentration) (high concentration)

Paul Bungartz GmbH&Co.KG, Germany 30 Nitric acid

Paul Bungartz GmbH&Co.KG, Germany 31 Urea Solution and Urea Melt T = 140 °C Vacuum 0,3 bar abs

Paul Bungartz GmbH&Co.KG, Germany 32 Urea Melt with stuffing box with heating

Paul Bungartz GmbH&Co.KG, Germany 33

Paul Bungartz GmbH&Co.KG, Germany 34 Slurry pump with mechanical seal

Paul Bungartz GmbH&Co.KG, Germany 35 Mechanical seal for slurry OUT IN

Paul Bungartz GmbH&Co.KG, Germany 36