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Burgmann
- Simply the best -
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Burgmann Cartridge Seals
- Simply the best -
General Technical Aspects
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Burgmann Cartridge Seals
- Simply the best -
General Technical Aspects
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General
Techn.
Aspects
Cartridge Seals
On the shaft sleeve
completely pre-assembled
Content
4
an pos one componen
with own cover
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General
Techn.
Aspects
Why Cartridge Seals
Higher functional security through pre-assembled seal;
no measuring errors can occur as with component seals
The entry of dirt or the damage of the sliding surfaces during theassembly is prevented
Reduction of assemblin costs due to re-assembled seal
Content
5
Reduced down-times during maintenance
Protection of the pump shaft / shaft sleeve
- no dynamic O-Ring which can damage the shaft sleeve
- Cartridge has its own shaft sleeve
Reduced consumption of energy
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General
Techn.
Aspects
Cartridge Seal Concept
Cartridge SealComponent Seal
Content
6
• separate assembly of stationary seat and
rotating unit
• positioning of the rotating unit on the shaft sleeve
• completely pr-assembled cartridge unit,consisting of shaft sleeve, component seal and
cover
greatest possible reduction of assemblyerrors
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General
Techn.
Aspects
Cartridge Seal Concept - Advantages
- Structure and cost allocation
Component Seal
Cartridge
Content
7 Maintenance /
Spare partsInvestment
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General
Techn.
Aspects
Structure and Cost allocation
S h a f t s l e e v e
No maintenance costs
during the pump life cycle
Investment Maintenance
Content
8
C o m p o n e n t S e a l
C o v e r
Maintenance cost correspond
to those of a component seal
(exchange or
remachining of the wear parts)
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Cartridge Seals
Represented in all industries
Pulp and Paper
Industry
Chemical
Industry
Refinery
Mining
Food IndustryWast Water
Ph rmacy
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Burgmann Cartridge Seals
- Simply the best -
General Technical Aspects
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General
Techn.
Aspects
Seal Concepts and their behaviour at
tilted position of the pump shaft
O-ring component seals
Reasons for tilted pump shafts
Content
11
Cartridge Seals
Bellows Cartridge Seals
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General
Techn.
Aspects
Reasons for tilted positon of the pump shaft
Pressure difference on suction and pressure connection
Manufacturing / Assembly deviation and wear
Content
12 Seal ConceptsContent page
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General
Techn.
Aspects
Reasons for tilted position of pump shaft
Pressure side p
Counter acting force on the shaft
Content
13
Suction side
p
Impeller
Seal ConceptsContent page
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General
Techn.
Aspects
Reasons for the tilted position of the pump shaft
Content
14Seal ConceptsContent page
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General
Techn.
Aspects
Reasons for the tilted position of the pump shaft
Deflection of shaft due to pressure
difference on suction and pressure
connection
Content
15
due to von deviations with regardto manufacturing and assembly
both causes produce
staggering on the rotating
sliding faces
Seal ConceptsContent page
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General
Techn.
Aspects
O-Ring Component Seals
Assembly
Design
Operating behaviour
Content
16 Seal ConceptsContent page
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General
Techn.
Aspects
Assembly of an O-ring component seal
separate assembly of stationary
seat and rotating unit
Content
17
positioning of the radial unit onthe shaft
Seal ConceptsContent page
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General
Techn.
Aspects
Design of an O-ring component seal
• Sliding face
• Spring
• Drive collar
• Pressure ring
Content
18
• O-rings• Stationary seat
Seal ConceptsContent page
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General
Techn.
Aspects
Operating behaviour of an O-ring component seal
Content
19Seal ConceptsContent page
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General
Techn.
Aspects
Operating behaviour of an O-ring component seal
Installation of sealing components
on the pump shaft or shaft sleeve
Content 20
Tilted position (angular
misalignement)of the pump shaft
due to hydraulic forces in
operation
Seal ConceptsContent page
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General
Techn.
Aspects
Cartridge Seals (stationary)
Assembly
Design
Operating behaviour
Content 21Seal Concepts
Content page
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General
Techn.
Aspects
Assembly of a cartridge seal (stationary)
Completely pre-assembledcartridge unit consisting of
- shaft sleeve
- component seal
Content 22
- cover
greatest possible reduction
of assembly errors
Seal ConceptsContent page
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General
Techn.
Aspects
Design of a cartridge seal (stationary)
CARTEX-SO/43
BURGMANN
• Cover and springs
Content 23
• Stationary seat
• Sliding face
a s eeve
• Secondary sealing elements
Seal ConceptsContent page
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General
Techn.
Aspects
Operating behaviour of a cartridge seal (stationary)
Stationary sliding face adapts tothe tilted position of the pump
shaft
Content 24
No wear of O-Ring or shaft/shaftsleeve
Seal ConceptsContent page
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General
Techn.
Aspects
Operating behaviour of a cartridge seal (stationary)
Content 25 Seal ConceptsContent page
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General
Techn.
Aspects
Operating behaviour of a cartrige seal (stationary)
Installation of the pre-assembledcartridge seal on the shaft / shaftsleeve
Tilted position (angularmisalignement) of the pump shaftdue to hydraulic forces inoperation.
-
Content 26
stationary seat towards the tiltedposition of the shaft sleeve druringinstallation
No movement between O-ring and
stationary seat in oparation- thus no wear
Seal ConceptsContent page
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General
Techn.
Aspects
Cartridge seals
• No dynamic O-ring
Content 27
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General
Techn.
Aspects
Bellows Cartridge Seals
Assembly
Design
Operating behaviour
Content 28
8/19/2019 Cartridge Seal Presentation
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General
Techn.
Aspects
Assembly of a bellows cartrigde seal
Completely pre-assembledcartridge unit consisting of
- shaft sleeve Wellenhülse
- bellows seal
Content 29
- cover
greatest posssible reduction
of assembly errors
Seal ConceptsContent page
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General
Techn.
Aspects
Design of a bellows cartridge seal
• Cover and drive collar
Content 30
a t s eeve + spr ng
• Bellows unit
• Sliding face
• Secondary sealingelements
• Stationary seat
Seal ConceptsContent page
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General
Techn.
Aspects
Operating behaviour of a bellows cartridge seal
Content 31Seal ConceptsContent page
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General
Techn.
Aspects
Operating behaviour of a bellows cartridge seal
Assembly of the stationary seat aswell as pre-assembled rotatingbellows unit
Tilted position (angularmisalignement) of the pump shaftdue to hydraulic forces in
Content 32
Lenghts divergency betweenbellows end and sliding faces iscompensated by the bellows
No damage of the pump / shaftsleeve as there is no contactbetween bellows and shaft
Seal ConceptsContent page
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