Cartridge Seal Presentation

8/19/2019 Cartridge Seal Presentation

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Burgmann

- Simply the best -



Burgmann Cartridge Seals

- Simply the best -

General Technical Aspects




- Simply the best -




General

Techn.

Aspects

Cartridge Seals

On the shaft sleeve

completely pre-assembled

Content

4

an pos one componen

with own cover



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



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



General

Techn.

Aspects

Cartridge Seal Concept - Advantages

- Structure and cost allocation

Component Seal

Cartridge

Content

7 Maintenance /

Spare partsInvestment



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)



Cartridge Seals

Represented in all industries

Pulp and Paper

Industry

Chemical

Industry

Refinery

Mining

Food IndustryWast Water

Ph rmacy




- Simply the best -




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



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



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



General

Techn.

Aspects

Reasons for the tilted position of the pump shaft

Content

14Seal ConceptsContent page



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




General

Techn.

Aspects

O-Ring Component Seals

Assembly

Design

Operating behaviour

Content

16 Seal ConceptsContent page



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




General

Techn.

Aspects

Design of an O-ring component seal

• Sliding face

• Spring

• Drive collar

• Pressure ring

Content

18

• O-rings• Stationary seat




General

Techn.

Aspects

Operating behaviour of an O-ring component seal

Content

19Seal ConceptsContent page



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




General

Techn.

Aspects

Cartridge Seals (stationary)

Assembly

Design

Operating behaviour

Content 21Seal Concepts

Content page



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




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




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




General

Techn.

Aspects

Operating behaviour of a cartridge seal (stationary)

Content 25 Seal ConceptsContent page



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




General

Techn.

Aspects

Cartridge seals

• No dynamic O-ring

Content 27



General

Techn.

Aspects

Bellows Cartridge Seals

Assembly

Design

Operating behaviour

Content 28



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




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




General

Techn.

Aspects

Operating behaviour of a bellows cartridge seal

Content 31Seal ConceptsContent page



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


Cartridge Seal Presentation

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