Owens Corning 147377 Drain Trap Tan 3-1/8 in 2 in Wall 3 ft

Insulation for 3 1/8 in copper tube

This fiberglass tube insulation fits copper tubing with a 3 1/8 inch outside diameter. It provides thermal protection across a temperature range of 0 to 1,000 degrees Fahrenheit. The product is plenum rated with a flame spread index of 25 and smoke developed index of 50. An ASJ facing and slit design with adhesive flap simplify installation.

Suited for high-temperature pipe runs

Mechanical contractors insulating hot-water or steam lines in commercial buildings will value the high temperature rating and plenum compliance. Installers needing a flexible foam product or a lower R-value for chilled water should consider other materials. The rigid fiberglass form and 2 inch wall make it unsuitable for tight retrofit spaces where thinner wrap is required.

R-value 14.6 at 2 inch wall thickness

The insulation delivers an R-value of 14.6 through its 2 inch thick fiberglass wall. This single thermal resistance figure determines whether the product meets the energy code or system design specification for the intended piping application.