Round Corner Expansion Bellows

Price 125000.0 INR/ Unit

Get a Price/Quote

MOQ : 1 Unit

Round Corner Expansion Bellows Specification

Max. Temperature
Up to 450C (Depending on Material)

Head Code
Round Corner

Media
Gas, Liquid, Steam, Air

Surface Treatment
Polished / Painted / Custom Coating

Flange
Drilled to ANSI, DIN, or Custom Standards

Material

Technique
Welded

Type
Round Corner Expansion Bellows

Connecting Type
Flanged / Welded Ends

Shape
Rectangular with Rounded Corners

Working Pressure
Up to 16 bar (or as per design)

Corrosion Resistance
High (Depends on Material Selection)

Leak Tightness
Helium Tested / Hydro Tested

Standards
Manufactured as per EJMA / ASME / BS / IS Standards

End Connection
Flanged, Butt Weld, or Custom

Application
HVAC, Pipeline Systems, Thermal Expansion Compensation

Number of Ply
Single or Multi-Ply as Required

Size Range
Customized as per requirement

Liner
Optional Internal Sleeve Available

Movement Capability
Axial, Lateral, and Angular Movements

About Round Corner Expansion Bellows

A round corner expansion joint is a type of metallic bellows designed to absorb multi-directional movement in large rectangular or square ducting systems, such as those for flue gas and air handling. Its design features rounded corners instead of sharp angles, which distributes stress more uniformly, prevents cracking, and extends the service life compared to mitered or camera corner joints. These joints are commonly used in high-temperature and high-pressure applications, like power plants and steel plants, and are fabricated from stainless steel or other alloys.

Versatile Movement Capability

Engineered for maximum flexibility, these expansion bellows can accommodate axial, lateral, and angular movements. This feature makes them indispensable wherever pipelines or HVAC systems undergo thermal expansion or mechanical displacement, helping maintain safe and continuous operation.

Superior Leak Tightness and Robust Design

Every bellow is subjected to stringent helium or hydro testing to ensure complete leak tightness. With options for single or multi-ply construction, plus welded seams and corrosion-resistant materials, they offer reliable performance, even in challenging conditions.

Customizable Solutions for Diverse Applications

Manufactured to your exact dimensions, these bellows can be supplied with varying flange, end connection types, and internal sleeves depending on client requirements. Surface finishing and coating options further enhance their suitability for gas, liquid, steam, and air applications.

FAQ's of Round Corner Expansion Bellows:

Q: How do Round Corner Expansion Bellows accommodate different types of piping movement?

A: These bellows are specifically designed to absorb axial, lateral, and angular movements that occur due to thermal expansion or structural shifts in pipelines and HVAC systems, thus protecting your components from stress and potential damage.

Q: What benefits do helium or hydro-tested bellows provide in terms of leak tightness?

A: Helium or hydro testing verifies the integrity of each bellow, ensuring leak tightness. This reduces the risk of media escape, which is crucial for maintaining system efficiency and safety, especially when handling gases, liquids, or steam.

Q: When should I choose a single-ply or multi-ply bellows construction?

A: Single-ply bellows are suitable for standard applications with moderate movement. Multi-ply construction is recommended for higher movement, improved flexibility, or when greater durability is required, as it enhances overall strength and fatigue resistance.

Q: Where are these expansion bellows commonly installed?

A: They are widely used in India across industries such as HVAC, industrial pipeline systems, and any installation that requires compensation for thermal expansion or misalignment in ducting or piping infrastructure.

Q: What is the process for customizing size, material, or end connections?

A: You can specify dimensions, material choices, and preferred end connections (flanged, butt welded, or custom) while placing your order. Each bellow is then manufactured as per your technical requirements and relevant international standards.

Q: Which materials provide optimal corrosion resistance for these bellows?

A: Corrosion resistance depends on material selection. Stainless steel is commonly chosen for its superior resistance, but other alloys can be used based on the media and environmental conditions present in your application.

Q: How does the internal sleeve option improve usage in aggressive media or high-velocity flows?

A: Adding an internal sleeve protects the bellows from direct contact with abrasive or high-velocity media, reducing wear and extending the service life, especially in demanding gas, steam, or liquid flow applications.

Tell us about your requirement