01.12.2004Paul Bungartz GmbH&Co.KG, Germany 1 Special Centrifugal Pumps Proved for over 60 years in...
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Transcript of 01.12.2004Paul Bungartz GmbH&Co.KG, Germany 1 Special Centrifugal Pumps Proved for over 60 years in...
![Page 1: 01.12.2004Paul Bungartz GmbH&Co.KG, Germany 1 Special Centrifugal Pumps Proved for over 60 years in Fertilizer Industry Chemical / Pharmaceutical.](https://reader030.fdocuments.us/reader030/viewer/2022032517/56649cae5503460f94970f17/html5/thumbnails/1.jpg)
01.12.2004 Paul Bungartz GmbH&Co.KG, Germany www.bungartz.com
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Special Centrifugal Pumps
Proved for over 60 years in
•Fertilizer Industry
•Chemical / Pharmaceutical Industry
•Power Plants
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01.12.2004 Paul Bungartz GmbH&Co.KG, Germany www.bungartz.com
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Special Centrifugal Pumps
Bungartz system
• since 1930
• Contactless hydrodynamic shaft seal
• by back vanes or additonal seal expeller
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01.12.2004 Paul Bungartz GmbH&Co.KG, Germany www.bungartz.com
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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
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01.12.2004 Paul Bungartz GmbH&Co.KG, Germany www.bungartz.com
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Hydrodynamic sealing
HS
H2
H2
vanes
Back vanes
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01.12.2004 Paul Bungartz GmbH&Co.KG, Germany www.bungartz.com
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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
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01.12.2004 Paul Bungartz GmbH&Co.KG, Germany www.bungartz.com
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Comparison
Bungartz-Pump
• Maintenance-freeSafety operation
during long operation
Pump with packing
• Regular check
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01.12.2004 Paul Bungartz GmbH&Co.KG, Germany www.bungartz.com
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Type: MOR
• for small suction head
• < 3-4 mCl• with one impeller• vanes < back vanes
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01.12.2004 Paul Bungartz GmbH&Co.KG, Germany www.bungartz.com
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Type: UMOR
• For high suction head
• Up to 30 mCl• With additional seal
expeller
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01.12.2004 Paul Bungartz GmbH&Co.KG, Germany www.bungartz.com
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Heavy duty bearing bracket
• Big shaft
• Bearing design for worste case
There are pumps in operation, we have delivered 40 years ago
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01.12.2004 Paul Bungartz GmbH&Co.KG, Germany www.bungartz.com
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Model M-UMOR
vanes
Back vanes
Seal expeller
Stuffing box
Circula-tion port
Centrifugal governor
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01.12.2004 Paul Bungartz GmbH&Co.KG, Germany www.bungartz.com
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Design: M-MOR• wearing plates with
simple geometry
• wearing plates are cheap spare parts
• wearing plates are also available in materials with high hardness
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01.12.2004 Paul Bungartz GmbH&Co.KG, Germany www.bungartz.com
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MOS (without flight governor)
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Design: SK-MOR• Welded construction
• Materials available, which are not castable
• for example Zirconium, Titanium, Tantal
• Using of homogeneous milled materials
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Design: E -MOR• Cast iron coated with
rubber
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01.12.2004 Paul Bungartz GmbH&Co.KG, Germany www.bungartz.com
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Design: P-Si-MOR• Pump of Silicon Iron
• For very corrosive fluids (80%H2SO4, t = 160°C)
• additional amoured with grey cast iron
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01.12.2004 Paul Bungartz GmbH&Co.KG, Germany www.bungartz.com
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Example for Applications
Fertilizer Industrie•Ammoniumnitrat
•Phosphoric Acid
•Sulphuric Acid
•Urea Melt
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01.12.2004 Paul Bungartz GmbH&Co.KG, Germany www.bungartz.com
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Ammoniumnitrat (96-98%)
• With heating
• With heat detector connections
• With drain device• With Connections for
flushing
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01.12.2004 Paul Bungartz GmbH&Co.KG, Germany www.bungartz.com
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Ammoniumnitrat (96-98%)
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01.12.2004 Paul Bungartz GmbH&Co.KG, Germany www.bungartz.com
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98% AN - Melt
• Liquid near the boiling point
• Special pump with low NPSH
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01.12.2004 Paul Bungartz GmbH&Co.KG, Germany www.bungartz.com
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• 99,6% AN-Melt
• T = 175°C
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01.12.2004 Paul Bungartz GmbH&Co.KG, Germany www.bungartz.com
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Ammoniumnitrat (max 70%)
• With mechanical seal
• Throttle bushing
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01.12.2004 Paul Bungartz GmbH&Co.KG, Germany www.bungartz.com
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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
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01.12.2004 Paul Bungartz GmbH&Co.KG, Germany www.bungartz.com
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Sulfuric Acid
• Duplexmaterials• Nickel based alloys• Silicon Iron
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Sulphuric Acid
• Hydrodynamic shaft seal
• T > 100 °C
• No problems with solids
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01.12.2004 Paul Bungartz GmbH&Co.KG, Germany www.bungartz.com
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Sulphuric Acid
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01.12.2004 Paul Bungartz GmbH&Co.KG, Germany www.bungartz.com
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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)
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01.12.2004 Paul Bungartz GmbH&Co.KG, Germany www.bungartz.com
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Phosphoric Acid
• M-MOR or
M-UMOR• With wear plates• similar Sanicro28• also for gascontaining
liquids
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Phosphoric Acid
• Without bearings in the liquid
• lenght up to 1,2m
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01.12.2004 Paul Bungartz GmbH&Co.KG, Germany www.bungartz.com
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Nitric Acid
• For high suction heads
• 1.4301 (middle concentration)
• 1.4361 (high concentration)
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Nitric acid
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Urea Solution and Urea Melt
• T = 140 °C
Vacuum 0,3 bar abs
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01.12.2004 Paul Bungartz GmbH&Co.KG, Germany www.bungartz.com
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Urea Melt• with stuffing box
• with heating
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01.12.2004 Paul Bungartz GmbH&Co.KG, Germany www.bungartz.com
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