Insulation Polyethylene Tubes
BENRO INDUSTRIES offers its range of refrigeration insulation for ACR tubes.





Twin Insulation Polyethylene Tubes
BENRO INDUSTRIES specializes in the manufacturing of polyethylene foam tubes for the insulation of ACR (Air Conditioning and Refrigeration) tubes and other industrial applications.
Polyethylene Foam has straight bond structure and it is
produced with extrusion method with chemicals and
inflator gas addition.
PE Foam products have a low thermal Conductivity and
closed cell structure, so it has a high-water vapor diffusion
resistance.

BENRO-FLEX Insulation
While the well-known Arma-flex brand primarily utilizes elastomeric nitrile rubber foam for its insulation products, polyethylene (PE) foam is a versatile and widely used material in pipe insulation, particularly for cooling systems. Our BENRO-FLEX product line is proudly produced using high-quality PE foam, offering a cost-effective and environmentally responsible solution for a variety of cooling insulation needs.
BENRO-FLEX PE foam insulation provides excellent thermal performance, effectively minimizing energy loss in refrigerant lines and maximizing cooling system efficiency. Its closed-cell structure ensures resistance to moisture and water vapor, preventing condensation that can lead to corrosion and reduced system performance. This also contributes to the insulation’s long-term durability and effectiveness.


Key Product benefits
These Insulated Tubes are designed for optimal performance, easy installation, and extended lifetime. Key benefits include:

- Ease and Speed of Application: Highly flexible material allows for quick and easy installation, reducing labor time and costs.
- Water and Moisture Resistance: Closed-cell structure prevents water and moisture absorption, ensuring long-term performance and preventing issues like corrosion or mold growth.
- Chemical and Environmental Resistance: Unaffected by chemicals and external environmental conditions, ensuring durability and longevity in various applications.
- Eco-Friendly & Hygienic Solution: Committed to sustainability, our insulation is manufactured using polyethylene (PE), a recyclable material. This minimizes environmental impact by reducing waste and conserving resources. Furthermore, it is manufactured without HCFCs or harmful chemicals. Its hygienic properties prevent the growth of fungi, bacteria, and mold, and it is odorless, contributing to a healthier environment.
- Superior Thermal Insulation: Low thermal conductivity provides excellent insulation, minimizing energy loss and maximizing efficiency.
- Impact Resistance and Condensation Prevention: Recovers after impact, preventing damage and condensation buildup.
- Sound and Heat Insulation: Provides both thermal and acoustic insulation, enhancing comfort and reducing noise transmission.
- Oil Resistance: Good resistance to oils, making it suitable for applications where oil exposure is a concern.
- Hygienic Properties: Does not support the growth of fungi, bacteria, or mold, and is odorless, promoting a healthy environment.
Technical Specifications
- Insulation:
- Material: PE (Polyethylene)
- Apparent Density: 30 kg/m³
- Wall Thickness: 8-12 mm
- Thermal Conductivity: 0.0402 W/m.K
- Tensile Strength: 0.36 Mpa
- Tear Strength: 0.19 N/mm
- Water Absorption: 33.28%
- Color: White / Gray
- Heat Resistance: No obvious color change or cracking after 6 hours at 70℃
- Elongation at Break: ≥ 60%
Polyethylene foam insulation tubes are specifically engineered to meet the demanding requirements of air conditioning connecting lines. They provide essential protection against condensation, heat loss/gain, and physical damage, ensuring optimal system performance and energy efficiency.


