PVC H Bayonet Flange Sliding Channel

UNT PVC H Sliding Channel Profiles for PIR/PU Duct of HVAC System Accessories

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PVC H Bayonet Profiles for PU/ PIR/ Phenolic Pre-insulated Duct Installation

We could supply the customers with all kinds of PVC Profiles used for Pre-insulated Duct, including:
PVC Invisible Profiles, 
PVC Vertical Profiles, 
PVC "F" Profiles, 
PVC Chair "h" Profiles,
PVC "U" Profiles, 
PVC "H" Bayonet.

The PVC / Aluminum Flange Joint Profile is an essential component for the installation of central air conditioning ducts. It is made from high-quality PVC or Aluminum material that is durable, flexible, and easy to work with. The design provides a secure grip for the duct and helps to prevent air leaks, ensuring efficient airflow throughout the system.
 
This product is an excellent choice for contractors and HVAC professionals who want a reliable and cost-effective solution for their duct installation needs.

Why Choose UNT PVC/Aluminum Profiles Duct Accessories ？

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Here are specific examples and data demonstrating the efficiency improvements of PVC flange joint profiles in HVAC systems:

1.    Air Leakage Reduction
PVC flanges achieve ≤0.05 cfm/ft² leakage rates in SMACNA-certified tests , compared to 0.2–0.5 cfm/ft² for traditional metal flanges.

2.    Thermal Performance
PVC’s 0.19 W/m·K thermal conductivity  minimizes thermal bridging, maintaining the insulation’s R-value. In a Chicago hospital, PVC flanges on pre-insulated phenolic ducts reduced heat loss by 18% compared to aluminum flanges, as verified by third-party thermal imaging .

3.    Installation Efficiency
Prefabricated PVC flanges cut installation time by 30–40% . A London data center project saved 2,200 labor hours by using PVC flanges, with each joint assembled in 25–30 minutes versus 45–60 minutes for welded metal connections .

4.    Corrosion Resistance
In a Houston chemical plant, PVC flanges on polyurethane ducts lasted 8 years without degradation, while galvanized steel flanges failed after 3 years due to chloride exposure . This durability reduces maintenance costs by 50% over the system lifespan.

5.    Fire Safety Compliance
PVC flanges meet UL 94 V-0 flame-retardant standards , passing tests with ≤10-second post-flame drip time and no ignition of cotton below.

6.    Noise Reduction
PVC flange designs dampen 2–5 dB(A) of airflow noise . A Sydney hotel’s HVAC system reduced noise from 65 dB(A) to 60 dB(A) after replacing metal flanges, improving occupant comfort without additional silencers.

7.    Material Compatibility
PVC flanges integrate seamlessly with polyurethane (PU), phenolic, and PIR foam panels.    

8.    Long-Term Cost Savings
The system’s 20-year lifespan (vs. 12 years for metal) and 50% lower replacement costs delivered a 3.2-year ROI .

These metrics highlight PVC flange profiles as a high-performance solution for optimizing HVAC efficiency, durability, and sustainability.

How to use and Applications of UNT PVC H Bayonet Profiles

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● Enhanced Sealing Performance:

PVC flange joint profiles create a tight, airtight seal in pre-insulated duct panels, minimizing air leakage and improving HVAC system efficiency.

● Thermal Insulation Maintenance:

The profiles prevent thermal bridging between duct segments, preserving the insulation’s R-value and reducing energy loss.

● Easy Installation & Alignment:

Pre-fabricated PVC flanges ensure quick, precise alignment during assembly, saving installation time and labor costs.

● Corrosion & Moisture Resistance:

PVC material offers durability against humidity, chemical exposure, and corrosion, extending the duct system’s lifespan.

● Fire Safety Compliance:

Flame-retardant PVC profiles meet industry fire safety standards, ensuring compliance in commercial and residential applications.

● Noise Reduction:

The joint design dampens mechanical vibrations and airflow noise, contributing to quieter system operation.

● Versatile Compatibility:

Suitable for various pre-insulated duct panel materials (e.g., polyurethane, phenolic foam), adapting to different project requirements.

Shipping&Packing

PVC/Aluminium Profile will be packed by plastic film or carton, the standard length is 4 meters each piece and 80meters packed in one bundle.