Our Products
Exhaust & Engine Bellows
Exhaust/engine bellows are thin-gauge metallic bellows assemblies engineered for engine and turbine exhaust lines to absorb axial thermal growth, isolate vibration, and reduce nozzle loads. Designed and manufactured by Athulya Bellows per EJMA/ASME practices for reliable service in high-temperature gas streams.
Key Features
• Optimized for axial movement and vibration attenuation on engine/generator sets.
• Single or multi-ply bellows construction for flexibility and fatigue life.
• Internal flow sleeve/liner options to stabilize gas flow and protect convolutions.
• End connections: flanged or weld ends; drilling to ANSI/EN/IS or client spec.
• External protective covers/insulation available for personnel and heat shielding.
• Control units (tie/limit rods) if restraint is specified by system design.
Applications
• Diesel/gas engine gensets, turbocharger outlets, engine test cells.
• Gas turbine exhaust, auxiliary boiler exhaust, HRSG/stack connections.
• Process/marine engine exhaust lines requiring reduced nozzle loads and vibration control.
Technical Data
| Parameter | Value / Range | Notes |
|---|---|---|
| Nominal Size | Project-specific | Engineered to engine/exhaust duct dimensions |
| Pressure Class | As per design/service | Typical exhaust service; restraint if required |
| Temperature | Material/service dependent | Grade & liner selection per gas temp/medium |
| Movement Capability | Axial (primary); limited lateral if specified | Preset/cold-spring available |
| Materials | SS 304 / 316 / 321 / 310; special alloys | Selection based on temperature & corrosion |
| End Connections | Flanged / Welded | Drilling to ANSI/EN/IS or client standard |
| Accessories | Internal sleeves/liners, external covers/insulation, tie/limit rods | Shipping rods removed at installation |
| Testing | Hydro / pneumatic / leak checks as specified | Material traceability; certificates on request |
Design Options
• Multi-ply bellows for higher flexibility & cycle life.
• Single-flow vs. double-sleeve liner concepts for flow stabilization.
• External covers, insulation jackets, and removable sections for maintenance.
• Factory preset / cold-spring to maximize in-service capability.
Quality & Testing
• Designed & manufactured per EJMA/ASME practices.
• Hydrostatic / pneumatic testing; optional dye-penetrant, helium leak, and cycle testing.
• Full documentation and certificates on request.
Prefer a quick review? Email your specs to sales@athulyabellows.com.