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Tan fiberglass pipe insulation tube with slit adhesive flap

Owens Corning

Owens Corning 200257 Drain Trap 1/2 in 3 ft 2 in Wall Tan Fiberglass R18.9

SKU CH-X1EW-CPVXF MPN 200257

Fiberglass pipe insulation with ASJ facing fits 1/2 in copper tube and provides R18.9 thermal resistance

  • TypeDrain Components
  • ColorTan
  • High R-18.9 value cuts heat loss
  • Fiberglass core handles 0 °F to 1 000 °F
  • Pre-slit adhesive flap speeds installation
  • ASJ facing meets flame 25 / smoke 50 ratings
  • Plenum rated for code-compliant duct runs

Product Identity

The Owens Corning 200257 is a fiberglass pipe-insulation tube sized for 1/2-inch copper pipe with a 2-inch wall thickness and an R-value of 18.9. It is intended for residential or light-commercial plumbing runs that need thermal protection from freezing or heat loss.

Installation Notes

The tube comes pre-slit with an adhesive flap so it can be wrapped around existing pipe without removing fittings. Cold temperatures can make the adhesive less tacky, so press the seam firmly and allow it to set before system pressure is applied.

Sustained Performance

Rated for continuous service from 0 to 1,000 degrees F, the insulation maintains its R-value under long-term temperature cycling. The ASJ facing carries a flame-spread index of 25 and a smoke-developed index of 50, meeting plenum-rated requirements for extended exposure.

Highlights

  • High R-18.9 value cuts heat loss
  • Fiberglass core handles 0 °F to 1 000 °F
  • Pre-slit adhesive flap speeds installation
  • ASJ facing meets flame 25 / smoke 50 ratings
  • Plenum rated for code-compliant duct runs

Specifications

TypeDrain Components
ColorTan
BrandOwens Corning
Model200257

Questions about this item

How can I confirm the insulation is performing at its R18.9 rating after installation?

Verify the slit is fully sealed with the adhesive flap and the ASJ facing is intact; the product is rated for continuous operation from 0 to 1,000 degrees F with a flame spread index of 25 and smoke developed index of 50.

What comes in the package and what must be purchased separately for a 1/2 inch copper tube?

The box contains one 3-foot length of 2-inch wall fiberglass tube insulation with self-sealing adhesive flap; no additional tape or fasteners are required for standard installation.

Which size should I select for a 7/8 inch inside diameter copper line?

Choose the 1/2 inch pipe size version (model 200257) which is made for 7/8 inch copper tube and provides a 2-inch wall thickness delivering R18.9.

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