Expansion Joints

Expansion Joint Pattern

Expansion Joints are widely used to allow movement in piping systems while containing pressure and medium running through it. Differential settlement, thermal growth, vibration or pressure pulsation can cause movement in piping system. When flexibility for this movement can not be designed into the piping system itself, expansions joints are the ideal solutions.

Type of movement

Axial Movement


Angular Movement


Lateral Movement


Torsional movement

Design of Expansion Joint
Requirements for the design the followings are requirements for the design of the expansion joint. these requirements shall be fulfilled through your inquiry.

Expansion Joint Fabrication Procedure
1.Cutting of the thin bellows layers
2.Rolling on roller bending machine
3.Welding of the outer and inner layer Radiography & Liquid Penetrant test
4.Polishing
5.Preparation of the and welded inner and outer layer
6.Multply bellows
7.Roll forming by wheel or hydraulic powered forming
8.Edge cutting
9.Weld attachment to the shell, or fittings
10.Retesting by Pneumatic test, Hydrostatic test, Heat resistant paint coating

Type of Expansion Joint

Fabric Expansion Joint


Rubber Expansion Joint


Buried Type Expansion Joint


Axial Metal Expansion Joint (Metal Below)


Steel Flexible Joint


Buried Type Metal Expansion Joint

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