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

Mitered Corner Square Bellows

• Made with sharp or beveled corners
• Cost-effective but can be stress-prone at corners

Round-Corner Square Bellows

• Curved corners to reduce stress concentration
• Longer life, slightly more expensive