Product Introduction
POLYGON's Tunnel Duct Fittings feature a revolutionary shield structure that provides exceptional pressure resistance while maintaining minimal height profile. The high-density PE-HD material ensures durability in demanding environments, and the unique corrugated design allows flexible installation around structural obstacles. The quick-connect system enables rapid assembly without specialized tools, while the smooth interior surface minimizes airflow resistance. All components are designed with anti-mold and anti-static properties, making them suitable for both humid and dry underground conditions.
Product Description
POLYGON Tunnel Duct Fittings represent cutting-edge engineering for underground and pressurized ventilation applications. The comprehensive product system includes:
• PE Flexible Corrugated Shield Pipe (132x52)
• Shield Pipe Rotating Joint (132x52)
• Shield Pipe Sealing Connector(132x52)
• ABS Shield Pipe Vertical 90° Elbow (132x52)
• Volume Distribution Box (5-132x52/2-163x68)
• Shield Pipe Sealing Transition Joint(132x52)
• ABS Shield Pipe Circular Pipe Horizontal Transition Joint(132X52/DN75, 132x52/DN90)
• Shield Pipe Horizontal 90° Elbow (132x52)
• ABS Shield Pipe Horizontal 90° Elbow (132x52)
• ABS Shield Pipe Circular Pipe Vertical Transition Joint(132X52/DN75, 132X52/DN90)
• Shield Pipe Horizontal Indoor Air Outlet Adapter (132X52/DN125)
• Shield Flat Plug (132x52)
These components form a complete pressurized ventilation system specifically designed for tunnel environments and underground applications.
Product Information
Material: Tunnel duct fittings High-density PE-HD with anti-corrosion additives
Certifications: ISO 9001, CNAS laboratory certification
Production Technology: Automated shield tunnel production line (China's exclusive)
Pressure Resistance: Up to 7kN/m² compression strength
Temperature Range: -30°C to +80°C operational capability
Patents: Multiple utility patents for shield structure and connection systems
Product Specification
|
Product Type |
Size/Model |
Technical Parameters |
|
Rotating Joint |
132x52 |
Rotation capability |
|
Vertical Elbow |
132x52 |
90° precision bending, minimal flow loss |
|
Transition Joint |
132X52/DN75 |
Circular to shield conversion |
|
Distribution Box |
5-132x52/2-163x68 |
Multi-port airflow distribution |
|
Sealing Connector |
132x52 |
Leak-proof connection |
Quality Control Process
POLYGON implements a rigorous three-stage quality assurance protocol:
Raw Material Validation: Density testing and additive dispersion verification
Production Monitoring: Real-time extrusion thickness and dimensional accuracy control
Finished Product Testing: Comprehensive performance validation including pressure resistance, airflow efficiency, and leakage tests
Performance Advantages
• Pressure Resistance: Tunnel duct fittings Unique shield structure withstands 7kN/m² ground pressure
• Space Efficiency: Low height profile ideal for limited space applications
• Environmental Safety: Glue-free connection eliminates VOC emissions
• Corrosion Resistance: Suitable for humid and chemical environments
• Installation Efficiency: Quick-connect system reduces installation time by 40%
• Acoustic Performance: Double-wall structure reduces noise by 25-30dB
• Maintenance Friendly: Smooth interior prevents dust accumulation
Applicable Scenarios
• Underground Transportation: Subway tunnels, underground passages
• Municipal Engineering: Underground utility tunnels, drainage systems
• Commercial Spaces: Underground shopping malls, parking facilities
• Industrial Applications: Underground factories, storage facilities
• Special Environments: Swimming pool ventilation, laboratory exhaust systems
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