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Black flexible elastomeric 90-degree elbow pipe fitting with closed-cell foam construction

Nomaco Kflex

Nomaco Kflex 801-LRE-048218 2-1/8" x 1" Elastomeric Elbow Pipe Fitting

SKU CH-RVHW-NJF0H

Elastomeric pipe insulation elbow fits 2-1/8" tube, withstands -297 °F to 220 °F with R-3.2 and antimicrobial closed-cell foam

  • TypeTarps
  • Insulation rated R-3.2 for thermal efficiency
  • Withstands -297 °F to 220 °F extremes
  • Closed-cell foam resists moisture and microbes
  • Flame spread index 25 meets plenum codes
  • 90° elbow fits 2-1/8 in tube outside diameter

Nomaco Kflex 801-LRE-048218 Elbow Fitting

This Nomaco Kflex 801-LRE-048218 is a 90-degree elastomeric elbow pipe fitting designed for thermal insulation on piping systems. It suits installers who need a flexible, closed-cell foam component that resists microbial growth and meets plenum fire-safety requirements. The black Buna-N rubber and PVC construction handles extreme temperatures from -297 to 220 degrees F. It is not for buyers who need straight-run insulation or fittings with a pre-cut slit for retrofit installation.

Check Pipe Diameter and Temperature Range

Verify that the pipe outside diameter matches the 2-1/8 inch specification before ordering. Confirm the system operating temperature stays within the -297 to 220 degree F limits of the material. Ensure the unslit installation style fits your assembly method, as this fitting must be slid on before final pipe connection. The plenum rating and flame spread index of 25 satisfy many commercial codes, but local regulations should still be reviewed.

Antimicrobial Closed-Cell Foam Benefits

The closed-cell foam structure delivers an R-value of 3.2 while blocking moisture ingress that can degrade thermal performance. Antimicrobial resistance inhibits mould and bacterial growth on the insulation surface over time. Flame-retardant properties and the low flame spread index support compliance with building fire codes for plenum spaces. The flexible elastomeric material simplifies handling around tight bends without cracking or splitting.

Highlights

  • Insulation rated R-3.2 for thermal efficiency
  • Withstands -297 °F to 220 °F extremes
  • Closed-cell foam resists moisture and microbes
  • Flame spread index 25 meets plenum codes
  • 90° elbow fits 2-1/8 in tube outside diameter

Specifications

BrandK-FLEX USA
TypeTarps

Questions about this item

What comes in the box and what else do I need to buy?

The fitting is a single pre-formed 90-degree elbow made from Buna-N rubber/PVC blend. No adhesive, tape, clamps or additional insulation sections are included.

Which size or version of this elbow should I choose?

The part is sized for 2-1/8 in. tube outside diameter with 1/2 in. wall thickness and a 90-degree bend. Select this exact code when those three dimensions match your pipe.

What does the R-3.2 rating mean once the elbow is installed?

R-3.2 indicates the thermal resistance of the 1/2 in. closed-cell foam wall; it helps maintain fluid temperature between -297 °F and 220 °F while meeting a flame spread index of 25.

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