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What is the need for bellows expansion joint in the piping system in India ?

 What is the need for bellows expansion joint in the piping system?

An expansion joint pipe is a flexible component that is inserted into the pipelines to safely absorb the dimensional changes of steel piping systems and ducts.


What is Expansion Joint?

• Other terms used for expansion joints as expansion bellows, flexible joints, and compensator.

• An Expansion Joint is compressed by one or more metal bellows (stainless steel) or from material like rubber or fabric 

• Metal bellows are suitable in all high temperatures; metal bellows have high strength properties and are resistant to corrosion

• The Metal bellows are implemented in such a way to absorb one of these movements or to absorb more of the movement  in the combination

• The use of Expansion  Joints will always prove to be the simplest and most effective method of compensating for thermal expansion and contraction.

METAL BELLOWS



What is the need for an expansion joint in the piping system?

• Expansion Joints bellows are used to absorb vibration and shock in the piping system.

• This also has the advantage of reducing the noise and compensating caused by misalignment.


What is a pipe expansion joint? why do we need it?

• Piping Expansion Joints or Expansion bellows are highly engineered mechanical devices containing one or more metal /rubber bellows.

• Expansion Joints are used to absorb the dimensional changes caused by the thermal expansion or contraction of pipeline ducts, vessels while containing the system pressure

• Expansion Joints are successfully used in the refiner’s .chemical and petrochemical plants, nuclear power plant, automotive and aerospace heating and cooling system.


Why Install pipe Expansion Joint

• To absorb the movement of thermal expansion as well compression

• To relieve the system stress and strain

• To reduce the noise and vibration

• To compensate for misalignment


What are the components of expansion joints?

Bellows

Tie rods

Flanges

Shipping bar

Protective cover and internal liners


What are bellows?

Bellows are part of the expansion piping joints.

There are two types

• Formed Bellows

• Fabricated Bellows

1. Formed Bellows

• Formed from the thin-walled tube

• Single & multiply

2. Fabricated Bellows

  • Use heavier gauge material than formed bellows   
  • Fabricated bellows can withstand higher amount of pressure

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Location: Survey # 700/11 & 12, Angol Industrial Estate, Belgaum – 590008, India

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