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Black cylindrical pipe insulation, unslit, half-inch wall thickness

Nomaco Kflex

Nomaco Kflex 6RX048258 Drain Trap

SKU CH-4Q01-RYDK0 MPN 6RX048258

Black NBR/PVC elastomeric pipe insulation fits 2-5/8 in. tubes, rated -297 °F to 220 °F with R-2.7

  • TypeDrain Components
  • MaterialHAWA
  • ColorBlack
  • Wide temperature range from -297 °F to 220 °F
  • NBR/PVC elastomeric material resists moisture and condensation
  • Nominal R-value 2.7 reduces thermal loss on piping
  • Six-foot length covers long runs with fewer joints
  • Fits 2-5/8 inch tube size for secure installation

Pipe insulation for 2-5/8 inch tubing

This Nomaco Kflex 6RX048258 pipe insulation fits 2-5/8 inch nominal ID tubing with a 1/2 inch wall thickness. The six-foot length suits residential and commercial plumbing runs. NBR/PVC based elastomeric material handles a temperature range from -297 to 220 degrees Fahrenheit. Supplied unslit for field cutting to exact requirements.

Unslit format and R-value 2.7

The unslit body lets installers cut precise lengths and seal joints with compatible tape or adhesive. An approximate R-value of 2.7 reduces thermal loss on hot lines and limits condensation on cold lines. Black colour provides a uniform appearance in exposed areas. No factory-applied jacket or vapour barrier is included.

NBR/PVC limits and Prop 65 notice

NBR/PVC elastomer remains flexible across the stated temperature span but may degrade with prolonged UV exposure or contact with certain solvents. The material carries a California Proposition 65 warning for a chemical linked to reproductive harm. Buyers needing a pre-slit, self-sealing or fire-rated sleeve should select a different product.

Highlights

  • Wide temperature range from -297 °F to 220 °F
  • NBR/PVC elastomeric material resists moisture and condensation
  • Nominal R-value 2.7 reduces thermal loss on piping
  • Six-foot length covers long runs with fewer joints
  • Fits 2-5/8 inch tube size for secure installation

Specifications

TypeDrain Components
MaterialHAWA
ColorBlack
BrandNomaco Kflex
Model6RX048258

Questions about this item

Does the elastomeric foam degrade or need replacement after long exposure to the 220 °F upper temperature limit?

The NBR/PVC based elastomeric material is rated for continuous operation up to 220 °F, so it will not require scheduled replacement due to heat aging within that range.

What is the first performance limit reached when the pipe runs continuously at high temperature?

The insulation's thermal resistance is fixed at an R-value of 2.7; sustained heat flow beyond the 220 °F rating is the primary design limit.

Will the black foam emit odours or off-gas when the system operates all day near the 220 °F maximum?

The product carries a California Proposition 65 warning for a chemical known to cause reproductive harm, indicating potential off-gassing under prolonged high-temperature use.

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