描述
Round Fabric Expansion Joint (Circular Non-Metallic)
High-Performance Flexible Connectors for Circular Ducting Systems
1. Product Overview
The Devel® Round Fabric Expansion Joint is a high-performance flexible connector specifically engineered for large-diameter circular ducting systems. Constructed from multiple layers of specialized technical fabrics and elastomers, these joints provide a robust solution for absorbing thermal expansion, mechanical vibration, and structural misalignment in low-pressure, high-temperature gas handling environments.
2. Technical Design Advantages
- Comprehensive Movement Compensation: The composite fabric architecture is designed to handle significant axial, lateral, and angular displacements simultaneously. This multi-plane flexibility is critical in systems where rigid metallic bellows may face fatigue limits.
- Thermal Integrity & Resilience: Depending on the material configuration (such as PTFE, silicone-coated fiberglass, or ceramic blankets), our joints can maintain structural integrity in continuous operating temperatures ranging from ambient up to 1000°C.
- Chemical Inertness: Utilizing high-grade PTFE (Teflon) liners, these joints offer exceptional resistance to corrosive flue gases and acid dew point condensation, ensuring a longer service life in FGD and SCR systems.
- Optimized Vibration Isolation: The non-metallic construction acts as a natural acoustic barrier, effectively dampening fan-induced noise and preventing the transmission of mechanical shocks through the ductwork.
- Minimal System Stress: Due to the extremely low spring rate of technical fabrics, the joint exerts negligible reaction forces on duct flanges and supporting structures, allowing for a more streamlined and cost-effective system design.
3. Applications
- Power Sector: Gas turbine exhaust systems, boiler flue gas ducts, and stack inlets.
- Environmental Control: Desulfurization (FGD), denitration (SCR), and large-scale dust collection units.
- Industrial Processing: Cement plant kiln lines, metallurgical smelting furnaces, and waste-to-energy facilities.
4. Product Parameter Table
| The Technical Specifications of Fabric Expansion Joint (Round) | ||
|---|---|---|
| Parameter | Standard Value | Optional |
| Temperature Range | -35 °C to +575°C | Up to +1000°C (with special design) |
| Pressure Range | -0.35 to + 0.35 bar | Higher on Request |
| Diameter Range | DN100 up to DN10000+ | No practical Upper Limit |
| Length | Project Specific | As Required |
| Movement Axial | Up to 215 mm | More with Special Design |
| Movement Lateral | Up to 85 mm | More with Special Design |
| Radial/Angular | Consult Devel for combined/Large-diameter movement solutions | |
Note: Above information based on the Devel factory standard. Other technical requirements can be reached according to your requirement.
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