Metal Expansion Joint for Pipelines & Industrial Systems
(Sambungan Ekspansi Logam untuk Pipa & Sistem Industri)
Reliable stainless-steel metal expansion joints for absorbing thermal movement, vibration, and pipeline stress
Overview
Metal expansion joints (also called metal bellows, stainless steel expansion joints, or pipeline compensators) are designed to absorb thermal expansion, vibration, pressure pulsation, and equipment movement in industrial pipelines.
They protect pipelines from stress, prevent deformation, reduce noise, and ensure long-term safe operation in gas, air, dust, steam, and high-temperature applications.
Metal expansion joints are widely used in power plants, chemical processing, HVAC systems, cement plants, steel mills, boilers, furnaces, dust extraction lines, and pneumatic conveying systems.
Learn more about industrial conveying equipment →https://lvrui-conveyor.com/bulk-material-handling-equipment/
Common Types
To meet different working conditions, the following types are available:
✅ Single bellows expansion joint
✅ Double bellows expansion joint
✅ Universal expansion joint
✅ Gimbal and hinge type
✅ Flanged end expansion joint
✅ Welded end bellows joint
✅ Rectangular duct expansion joint
✅ High-temperature metal expansion joint
✅ Stainless steel 304 / 316L / Inconel bellows
✅ DN100 – DN3000 custom expansion joints
Technical Specifications
| Item | Specification |
|---|---|
| Diameter Range | DN100 – DN3000 |
| Temperature | ≤ 700°C (higher available) |
| Pressure Class | PN0.6 – PN2.5 |
| Bellows Material | SS304, SS316L, Inconel |
| Flange Standard | DIN / ANSI / JIS / Custom |
| Media | Air, dust, gas, steam |
*Technical specifications are for reference only and can be customized upon request.
Dust Collection System → https://lvrui-conveyor.com/dust-collection-system/
Features
✅ Stainless steel bellows for high durability
✅ Temperature resistance up to 700°C
✅ Single-layer or multi-layer bellows construction
✅ Compensates thermal expansion and vibration
✅ High pressure and corrosion resistance
✅ Long service life in dusty and high-temperature environments
✅ Custom diameter, length, and flange standards
✅ Suitable for gas ducts, boilers, furnaces, blowers, compressors
✅ Ideal for industrial ventilation, pneumatic conveying, dust extraction
Working Principle
✅ Temperature rise causes expansion
✅ Metal bellows flex to absorb movement
✅ Prevents pipe deformation, cracking, and leakage
✅ Reduces vibration and mechanical stress
✅ Ensures continuous and safe system operation
ASME Expansion Joint Reference →
https://www.asme.org
Applications
✅ Air ducts & industrial ventilation
✅ Blower/inlet and outlet piping
✅ Boiler and furnace pipeline systems
✅ Cement, lime, and fly ash handling lines
✅ Chemical and refinery pipelines
✅ HVAC, exhaust gas ducts
✅ Pneumatic conveying systems
✅ Steel plants and power generation
✅ High-temperature and high-pressure pipelines
Advantages
✅ Excellent thermal expansion absorption
✅ Vibration and shock isolation
✅ Protects pipelines from stress and deformation
✅ Suitable for corrosive and abrasive environments
✅ Enhances pipeline safety and extends service life
✅ Custom-built for specific working conditions
✅ Multiple materials: SS304, SS316L, Inconel, high-alloy steel
Ready to Get a Reliable Metal Expansion Joint Solution?
Partner with LVRUI for professional bulk material handling solutions and responsive technical support.
✅ Get expert quotation and customized solution within 12 hours.
✅ Factory direct supply with strict quality control
✅ Professional engineering support from experienced team
✅ Stable delivery for overseas industrial projects