Square Bellows

About Square Bellows

Square bellows  expansion joints designed primarily for ducting systems or low-pressure applications , especially where round bellows are not feasible due to space or design constraints.

Shape - Square or rectangular cross-section

Material - Usually stainless steel or MS

Movement - Type Axial, lateral, and angular (based on design)

Pressure Rating - Typically low-pressure applications

Flexibility - More flexible at corners (miters or rounded corners)

Common Applications

Air & flue gas ducts

Exhaust systems

Furnace connections

Ventilation and HVAC ducts

Industrial dust and fume extraction systems

1. Mitered Corner Square Bellows

* Made with sharp or beveled corners

* Cost-effective but can be stress-prone at corners

2. Round-Corner Square Bellows

* Curved corners to reduce stress concentration

* Longer life, slightly more expensive