Aeroflex 398-ac1434 Pipe Insulation 0.25 in Id 0.75 in Wall 288 Ft

Product Description

The AEROFLEX 398-ac1434 is a closed-cell elastomeric foam pipe insulation tube designed for thermal protection and condensation control on refrigeration, HVAC, and plumbing piping. Manufactured from a proprietary non-polar EPDM-rubber blend, it delivers consistent long-term performance against moisture vapor transmission and environmental stresses. The tube features a 0.25-inch inside diameter and a 0.75-inch wall thickness, providing substantial insulating value in a flexible, lightweight format. Each unslit tube ships in a 288-foot length. HVAC technicians, refrigeration mechanics, and plumbers install this product on copper, steel, or plastic pipe during new construction or system retrofits.

This insulation is suited for residential and commercial HVAC and refrigeration applications where condensation control and energy-code compliance are required. The unslit tube format slides directly over pipe ends during new installations, making it the preferred format when piping is not yet run. The closed-cell foam structure resists moisture absorption, helping maintain thermal performance over the life of the system. The 0.75-inch wall thickness addresses the heavier insulation requirements common in low-temperature refrigerant suction lines and chilled-water piping.

Key Features

• Closed-cell EPDM-rubber foam resists moisture vapor transmission for long-term thermal stability
• 0.75-inch wall thickness meets demanding energy code and condensation control requirements
• 0.25-inch inside diameter fits small-diameter copper and refrigerant tubing
• Unslit tube format slides over pipe for clean, seamless coverage on new installations
• 288-foot continuous length reduces joint count on large runs
• Black color provides UV-resistant surface for exposed piping installations

Compatibility

Designed as an OEM-style insulation solution for small-diameter refrigerant, chilled-water, and plumbing piping requiring a 0.25-inch inside diameter and 0.75-inch wall thickness closed-cell foam tube.

Installation Notes

Licensed HVAC technicians and plumbers typically install elastomeric foam pipe insulation as part of new piping runs or during system retrofits. Power down or de-energize the system and allow piping to reach ambient temperature before installing insulation. Slide the unslit tube over the pipe end before making final connections; adhesive-close the seam with a compatible elastomeric insulation adhesive where required by local energy codes. Avoid stretching the insulation during installation, as this reduces effective wall thickness and thermal performance.

Technical Specifications

• Inside Diameter: 0.25 inches
• Wall Thickness: 0.75 inches
• Length: 288 feet
• Material: Closed-cell EPDM elastomeric foam
• Color: Black
• Tube Style: Unslit

Standard Information

• Brand: AEROFLEX
• Manufacturer Part Number: 398-ac1434