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Tan fiberglass pipe insulation tube with adhesive slit and flap, 3 ft length

Owens Corning

Owens Corning 147328 Drain Trap Tan 2 5/32 in ID 2 in Wall 3 ft Length R16.1

SKU CH-Y3JR-TYYDJ MPN 147328

Fiberglass pipe insulation with ASJ facing, 3 ft length and R16.1 thermal resistance for 2-1/8 in copper tubing

  • TypeDrain Components
  • MaterialHAWA
  • ColorTan
  • R-16.1 insulation value cuts heat loss on hot pipes
  • Withstands 0 to 1,000 °F for extreme temperature stability
  • Slit with adhesive flap speeds installation on 2 5/32 in ID pipe
  • Plenum-rated with flame spread 25 and smoke developed 50 for code compliance
  • ASJ facing adds durable vapour barrier on 3 ft fiberglass tube

Tan fiberglass pipe insulation for 2-1/8 in copper

This Owens Corning 147328 insulation tube fits copper tube size 2-1/8 in with an inside diameter of 2 5/32 in and a wall thickness of 2 in. The 3 ft length carries an R-value of 16.1 and is faced with ASJ facing in tan. It is plenum rated with a flame spread index of 25 and smoke developed index of 50. Suitable for HVAC and plumbing systems operating between 0 and 1,000 degrees F.

Pre-slit adhesive flap speeds installation

The tube comes slit with an adhesive flap so installers can wrap it around the pipe without extra tape. Alignment of the flap must be kept tight to avoid gaps that reduce thermal performance. Over-compression at bends or supports can crush the fiberglass and lower the effective R-value. The rigid tube form resists sagging but requires careful cutting for fittings and valves.

Maintains thermal resistance across the full 0

Fiberglass core and ASJ facing retain their insulating properties under sustained high-temperature exposure without melting or degrading. The plenum rating confirms low flame spread and smoke development during prolonged heat cycles. Continuous operation at the upper temperature limit does not compress the material or reduce the 16.1 R-value over time.

Highlights

  • R-16.1 insulation value cuts heat loss on hot pipes
  • Withstands 0 to 1,000 °F for extreme temperature stability
  • Slit with adhesive flap speeds installation on 2 5/32 in ID pipe
  • Plenum-rated with flame spread 25 and smoke developed 50 for code compliance
  • ASJ facing adds durable vapour barrier on 3 ft fiberglass tube

Specifications

TypeDrain Components
MaterialHAWA
ColorTan
BrandOwens Corning
Model147328

Questions about this item

How can I confirm the insulation is performing to its R16.1 rating after installation?

Verify the slit with adhesive and flap is fully sealed along the 3 ft length, ensure the ASJ facing is intact, and check that surface temperatures stay within the 0 to 1,000 Degrees F operating range.

What comes in the box and what must I purchase separately for the 2 5/32 in ID tube?

The box contains the 3 ft fiberglass tube with slit, adhesive flap, and ASJ facing; separate purchases may include additional tape, vapor-barrier mastic, or cutting tools for custom lengths.

Which version should I choose for a 2 1/8 in copper tube requiring plenum-rated insulation?

Select this 147328 model with 2 in wall thickness, R16.1, flame spread index 25, smoke developed index 50, and plenum-rated ASJ facing to meet those specifications.

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