1/2" Wall Insulation Tube Pipe, Rubber Pipe,6' x3/8" Pipe (O.D.)

K-FLEX 6RX048038 Insul-Tube® – Closed-Cell Elastomeric Pipe Insulation

The K-FLEX 6RX048038 Insul-Tube® is a 6-foot length of flexible, closed-cell elastomeric insulation, designed to provide long-term thermal protection and condensation control for piping systems. With a 3/8" wall thickness and internal diameter engineered for standard piping, this non-slit tubing is suitable for commercial and industrial mechanical applications, including chilled water, hot water, and refrigeration lines.

Performance Features

• Service Temperature Range: -297°F to +220°F (-182°C to +104°C)
• Material: NBR/PVC-based closed-cell elastomeric foam
• Water Vapor Permeability: ≤ 0.08 perm-in
• Thermal Conductivity: ≤ 0.245 Btu-in/hr·ft²·°F at 75°F
• Flame and Smoke Rating: UL 94 and ASTM E84 compliant (25/50 rating)

Advantages for Mechanical Systems

• Condensation Control – Closed-cell construction prevents moisture absorption and reduces the risk of corrosion under insulation.
• Energy Efficiency – Minimizes heat loss and gain in HVAC and plumbing systems to support system performance.
• Flexible and Durable – Accommodates bends and fittings without kinking, while resisting tearing and compression damage.
• Low Maintenance – Requires minimal upkeep once installed, making it a reliable long-term solution.
• Non-Slit Configuration – Allows for field-customization and clean, sealed installation in demanding environments.

Product Dimensions

• Length: 6 feet
• Wall Thickness: 3/8 inch
• Configuration: Non-slit tubular form

Installation Notes

Best practice involves cutting the insulation to length using a sharp utility knife and securing it with appropriate adhesive or tape designed for elastomeric materials. Proper sealing at seams and termination points is critical to maintaining vapor barrier integrity. For complex assemblies or compliance-driven environments, installation by qualified personnel is recommended.

Field Applications

Contractors: Suitable for commercial pipe runs in mechanical rooms, chilled water loops, hot water return systems, and refrigeration piping requiring thermal insulation and moisture control.

Facilities Maintenance: Ideal for retrofit or preventive upgrades where maintaining system efficiency and avoiding condensation damage is essential.