
Phenolic Pre-insulated Duct System
To contractors seeking a high-performance, time-saving solution for HVAC projects, the Phenolic Pre-insulated Duct System emerges as a game-changer-designed to streamline installations, reduce costs, and deliver long-term reliability. Here's why it deserves a spot in your project toolkit:
What Is a Phenolic Pre-insulated Duct System?
This all-in-one ductwork solution combines a rigid phenolic foam core-recognized for its exceptional insulation and fire-resistant properties-with durable facing materials (typically aluminum foil) bonded to both sides. The result is a prefabricated, lightweight system that integrates ductwork and insulation into a single, ready-to-install component, eliminating the need for separate insulation layers or complex on-site fabrication.
Key benifits of Phenolic Pre-insulated Duct System:
1. Faster Installation = Reduced Labor Costs
Pre-cut, pre-insulated panels with interlocking or adhesive joints simplify on-site assembly. No more measuring, cutting, or taping separate insulation-simply fit the pieces together.
Lightweight design (up to 60% lighter than traditional galvanized steel ducts) reduces the need for heavy lifting equipment or extra crew members.
Installs 30–50% faster than conventional ductwork, helping you meet tight deadlines, minimize project downtime, and take on more jobs.
2. Superior Thermal Performance = Happy Clients
Phenolic foam has an ultra-low thermal conductivity (0.025 W/(m·K)), ensuring minimal heat loss or gain in conditioned air. This makes HVAC systems run more efficiently, cutting clients' energy bills by 15–20% over time.
The closed-cell structure of the foam resists moisture penetration, eliminating condensation on duct surfaces-a common issue in humid environments (e.g., basements, kitchens, or coastal areas). This prevents mold growth, water damage, and costly callbacks.
3. Durability & Low Maintenance = Less Hassle
The aluminum or steel facings protect the foam core from physical damage, corrosion, and wear, even in harsh industrial or commercial settings (e.g., warehouses, swimming pools, or labs).
The rigid structure maintains its shape over time, reducing sagging, leaks, or performance degradation. With proper installation, it lasts 20–25 years, minimizing long-term repair needs.
4. Fire Safety Compliance = Peace of Mind
Phenolic foam is inherently fire-retardant, meeting strict global standards (e.g., EN 13501-1 Class B1, GB 8624 B1, or ASTM E84 Class A). It self-extinguishes when the flame source is removed and releases minimal toxic smoke.
This compliance simplifies code approvals for high-risk spaces like schools, hospitals, high-rises, or data centers, reducing delays in project sign-offs.
5. Versatility = Fits Any Project
Available in custom sizes, shapes (rectangular, circular, oval), and insulation thicknesses (20mm–40mm) to match your project's unique requirements.
Suitable for indoor and semi-outdoor use (with weather-resistant facings), making it ideal for commercial buildings, industrial facilities, residential complexes, and cleanrooms.
Compatible with all HVAC systems (VRF, split systems, central air), ensuring seamless integration into existing or new setups.
6. Cost-Effective = Boosts Profit Margins
Lower labor costs due to faster installation.
Reduced material waste (pre-fabricated panels minimize on-site cutting).
Clients benefit from lower energy bills and fewer repairs, enhancing your reputation as a provider of smart, cost-saving solutions.
certification of Phenolic Pre-insulated Duct System
Fire Safety, Thermal Conductivity and Physical Performance

BS 476 Part 6&7

ASNZS 1530.3

thermal Conductivity

Compress Strength

CFC HCFC Free
The packing and container loading of Phenolic Pre-insulated Duct Panel:
Phenolic Pre-insulated Duct Panels:
Regular Size: 3950*1200*20mm/ 2900*1200*20mm
PIR Foam Density: 50kg/m3,
Weight: about 1.35kg/m2
Packing: 10 sheets/ paper carton
Container Loading:
40'HQ Container: 3950/2900*1200*20mm, 10 sheets packed in one carton, total 660sheets (3950mm) / 880sheets(2900mm).
20'GP Container: 2900*1200*20mm, 10 sheets packed in one carton, total 400sheets.

How to make Air Ducts with Phenolic Pre-insulated Panels
The fabrication process of Pre-insulated Air Ducts






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