KCES/KCB - HINGED EXPANSION JOINT

Features

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The single bellow expansion joint for angular movement is manufacture with a metal articulation to accompany the bellow around a pivot. one set of convolutions welded with carbon steel or stainless steel tube connections. Eventhough, it can absorb movements in any direction, this model is mainly used for axial movements.  

Available for exhaust gas, liquid medium and steam, the bellow is calculated following EJMA with a design pressure, temperature and movements. Accessories can be added to protect, guide or limit the expansion such as covers, liners and tie rods. 

ADVANTAGES & caution

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Assets : 

• Harmonious movement
• Retain pressure force
• No anchors required
• Can be designed to support the weight of the pipe

Warnings :

• The hinges need to be design to resist to pressure
• Respect the acceptable movements
• For large movements, use by pair
• Request a inner liner when medium is 7 m/sec and higher, or with steam

Design Pressure : 6 bar
Bellow : 304 - 321 - 316
Welding ends : carbon steel - Stainless steel

DESIGN PRESSURE : 10 BAR
BELLOW : 304 - 321 - 316
WELDING ENDS : CARBON STEEL - STAINLESS STEEL

DESIGN PRESSURE : 16 BAR
BELLOW : 304 - 321 - 316
WELDING ENDS : CARBON STEEL - STAINLESS STEEL

KES2 - DOUBLE BELLOWS WITH WELDING ENDS

Features

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The double bellow welding ends expansion joint is manufacture with two sets of convolutions welded in between them and at eahc end with carbon steel or stainless steel tube connections. They are specially manufacture for large movements. 

They have also the same fuctions as the single bellow, available for exhaust gas, liquid medium and steam.  They follow the same EJMA calculation note. Accessories can be added to protect, stabilized, guide or limit the expansion such as covers, liners and tie rods. 

ADVANTAGES & caution

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Assets : 

• Economical
• No need for gaskets 
• Welded, no leakage possible
• Large movements

Warnings :

• Always welded between two anchors (close to one of them)
• Guide the pipeline
• Respect the acceptable movements
• Request a inner liner when medium is 7 m/sec and higher, or with steam