WeldedEndExpansion Joint

 Axialexpansionjointsaredesignedtoabsorbthethermalexpansion in straightpipelinesandaresuitableformanyliquidsandgasesincluding LTHW, MTHW, HTHW andSteam.

  • They do not changethedirection of theflow
  • Additionalassemblagedistance is not necessary
  • Dividingthepipelinehelpstopreventstress of lateralforces

MovementAbsorption

Axialshiftandslightall-aroundmovement of theexpansionjoint is possible. Axialexpansionjointswithtwobellowsareusedtoabsorblargermovements.

Advantages of Axial Expansion Joints

• Easytoabsorbtheexpansionmovements
• No directionchanges of theflow
• Minimum applicationarea
• Possiblelateralandangularexpansionabsorptionbytheadditionalbellows.
• Toprovide a non-stressedareawherethepressure is not toohighsuch as pumpandcompressorapplications.
• Lowapplicationcosts

 

Standard construction

BellowMaterial: Stainless Steel AISI 321 (opt.304,316L,316TI,309)
Connection Types: FixedandFloatingFlangedandWeldedEnded
FlangeMaterial: 
Carbon Steel St.37.2 as standard, thematerial can be customised on request
Inner Sleeve: 
Available in stainlesssteel AISI 321 (opt.304,316L,316TI,309) on request

 

OperationConditions

Operating Temperature: -80C°/+600C°
Operating Pressure: 
Can be producedwithdifferentpressure  rates PN 2,5/6/16/25/40/64
Nominal Diameters: 
DN 25 (1”) – DN 2600 (104”)

 

*As an alternativetoourstandardconstructionthese Expansion Joints can also be custommadespecificallytosuityourneeds. This can be donebymanufacturingthemfromdifferentmaterialsandtospecificdimensionsespeciallytosuiteachapplication, be it replacement of existingexpansionjointsorbrandnewsystems.

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