Non-Metallic Expansion Joint
Fiberglass Fabrics for Non-Metallic Expansion Joints
Specified around movement, heat and sealing requirements.
Specifications
- Recommended fabric
- Double-sided silicone-coated fiberglass
- Recommended weight
- 660 / 840 / 1000 g/mยฒ
- Key requirement
- Air-tightness
- Application note
- Silicone coating not suitable for SO2-containing flue gas
๐ Why Choose Vetex Expansion Joints
Designed for extreme industrial environments where metal fails
- โ Multi-directional movement absorption Handles axial, lateral, and angular displacement simultaneously (3โ5ร metal joints)
- โ Zero thrust force No reactive force โ simplifies pipe support design โ reduces project cost
- โ High temperature resistance Up to 1000ยฐC+ with ceramic fiber composites
- โ Corrosion resistant Suitable for SOโ, acid gas, alkaline exhaust
- โ Vibration & noise reduction Ideal for fans, blowers, and pumps
- โ Lightweight & easy installation Faster installation, lower labor cost
๐งฑ Structure Overview (Multi-Layer Composite Design)
๏ปฟ
๏ปฟ
From gas side to outer layer:
- Inner Liner (Optional) Stainless steel mesh / baffle โ protects insulation & improves flow
- Sealing Layer (Core)
- Silicone-coated fiberglass
- Fluoroelastomer (FKM)
- PTFE membrane
- Thermal Insulation Layer Ceramic fiber/fiberglass blanket
- Insulation Packing Enhances thermal & airtight performance
- Outer Protective Layer Weatherproof & mechanical protection
- Metal Frame / Flange Carbon steel or stainless steel
โ๏ธ Typical Types
- Round Expansion Joint
- Rectangular Expansion Joint
- Angular Type
- Double / Multi-section Type
๐ญ Applications
- ๐ฅ Power Plants โ Boiler flue gas, FGD/DeNOx systems
- ๐ Cement Industry โ Kiln inlet/outlet, dust collectors
- ๐ญ Metallurgy โ Blast furnace gas ducts
- ๐งช Chemical Plants โ Corrosive exhaust gas systems
- ๐ฌ HVAC & Tunnels โ Large air ducts, ventilation systems
๏ปฟ
๐ Technical Capabilities
Parameter | Range |
|---|---|
Temperature | -60ยฐC to 1000ยฐC+ |
Pressure | โค ยฑ40 kPa (Low pressure only) |
Size | Custom (DN100 โ DN10000+) |
Shape | Round / Rectangular |
Material Options | Silicone, FKM, PTFE, Ceramic |
๐ฏ Customization
All products are 100% custom-made
We support:
- Custom size & shape
- Multi-layer material design
- High-temp / anti-corrosion solutions
- Special reinforcement for negative pressure
โ ๏ธ Important Notes
- Not suitable for high-pressure pipelines
- Avoid sharp object damage during installation
- Outdoor use requires UV & rain protection
๐ง How to Select the Right Model
We recommend confirming:
- Operating Temperature
- Gas Composition (SOโ, dust, corrosive media)
- Pressure condition (positive/negative)
- Movement values (axial/lateral/angular)
- Duct size & shape
๐ Our engineers will help you select the optimal design.
๐ Installation & Maintenance
- Do NOT twist or overstretch during installation
- Avoid welding sparks or sharp edges near fabric
- Regular inspection for aging or cracks
- Replace the fabric layer if damaged
๐ฉ Strong Call To Action
Get a Free Engineering Solution & Quote
- ๐ Custom design within 24 hours
- ๐ Technical drawing support
- ๐ Global export experience
๐ Send your requirements now
(Temperature + Size + Medium + Movement)