Universal Expansion Bellows

Product Description

Universal Expansion Bellows" typically contain or consist of the following components and materials:

Key Components:

Bellows Element:

• The flexible core of the unit that absorbs movement.
• Usually made from stainless steel (e.g., SS 304, 316L).

End Fittings:

• Weld ends, flanges, or threaded connections.
• Match the pipe or system connection type.

Internal Sleeve (Liner) (optional):

• Protects the bellows from media flow erosion or turbulence.
• Helps reduce pressure drop.

External Cover (Shroud) (optional):

• For protection from external damage or insulation.

Tie Rods / Limit Rods (in some designs):

• To control the axial or lateral movement and avoid overextension.

Reinforcement Rings (optional):

• For high-pressure applications.

Materials Typically Used:

• Metal Bellows: Stainless Steel (SS 304, SS 316, Inconel, Hastelloy, etc.)
• End Fittings: Carbon steel, Stainless steel, Alloy steel
• Sleeve & Cover: Stainless steel or same as bellows
• Tie Rods: Carbon steel or stainless steel

What It Contains Functionally:

A universal expansion bellow is designed to absorb multi-directional movement:

• Axial
• Lateral
• Angular