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Black flexible foam tube insulation six feet long

Insul-Tube

Insul-Tube Pipe Insulation 1-5/8" ID 6 ft NBR/PVC

SKU CH-T2N0-NFHXP

Insulates 1-5/8 inch copper tubing with flexible closed-cell NBR/PVC foam rated for -297 to 220 °F and R-4.8

  • TypeTarps
  • Size1-1/4"
  • Operates down to -297 °F for extreme cold protection
  • Withstands 220 °F maximum temperature for high-heat applications
  • R-value 4.8 delivers strong thermal resistance
  • Flame spread index 77 and smoke developed index 102 meet fire safety standards
  • Plenum rated for safe use in air-handling spaces

Pipe Insulation for 1-5/8" Copper Tubing

This six-foot length of flexible NBR/PVC tube fits copper tubing with a 1-5/8 inch inside diameter and corresponds to a 1-1/4 inch pipe size. The unslit design requires cutting during installation but delivers a continuous thermal barrier for plumbing or HVAC lines. It arrives new and plenum rated for use in air-handling spaces.

Sustained Temperature Performance

The closed-cell foam structure maintains its insulating value across a continuous operating range from minus 297 degrees Fahrenheit up to 220 degrees Fahrenheit. An R-value of 4.8 indicates steady resistance to heat flow during long heating or cooling cycles rather than only during brief peaks. Flame spread and smoke developed indices of 77 and 102 respectively show consistent fire-behaviour characteristics under prolonged exposure.

Upgrade from Lower-Rated Wrap or Uninsulated Pipe

This tube replaces basic fiberglass wrap or bare copper where condensation control and stable thermal efficiency are required over the full 220-degree span. The jump is worthwhile when plenum rating and a closed-cell foam cell type are specified by code or design, while installers needing pre-slit or self-sealing formats will need a different product style.

Highlights

  • Operates down to -297 °F for extreme cold protection
  • Withstands 220 °F maximum temperature for high-heat applications
  • R-value 4.8 delivers strong thermal resistance
  • Flame spread index 77 and smoke developed index 102 meet fire safety standards
  • Plenum rated for safe use in air-handling spaces

Specifications

BrandK-FLEX USA
TypeTarps
Size1-1/4"

Questions about this item

How much heat does the insulation handle during continuous operation?

The material is rated for a maximum operating temperature of 220 Degrees F, so it remains stable when the pipe runs hot all day.

What pipe size must I already have for this tube to fit?

It is sized for copper tube with a 1-5/8 in inside diameter, which corresponds to a 1-1/4 in pipe size.

Will this insulation meet the same fire-safety ratings as my existing plenum-rated wrap?

Yes, it carries a flame spread index of 77 and a smoke developed index of 102, and it is plenum rated.

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