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Nomaco Kflex

Nomaco Kflex 801-LRE-100238 90° Elastomeric Elbow Pipe Fitting 2-3/8" x 37/64

SKU CH-Q42N-58HHR

Elastomeric 90° elbow fitting insulates 2-3/8" pipe with Buna-N/PVC foam rated to -297°F and 220°F, R-6.6, plenum-rated and antimicrobial

  • TypeTarps
  • Operating range from -297 °F to 220 °F
  • Thermal resistance rated at R value 6.6
  • Flame spread index limited to 25
  • Antimicrobial closed-cell foam resists microbial growth
  • Plenum rated for air-handling spaces

90° Elastomeric Elbow Pipe Fitting

The Nomaco Kflex 801-LRE-100238 is a 90-degree elbow pipe fitting made from Buna-N rubber and PVC. It fits pipe with a 2-3/8 inch outside diameter and features a closed-cell foam structure. The unslit design provides continuous insulation coverage for plumbing and HVAC systems. This component is rated for plenum installation and offers antimicrobial and flame-retardant properties.

Upgrades from straight insulation lengths

This elbow fitting replaces the need to mitre or tape straight insulation sections at corner joints. The pre-formed 90-degree angle ensures consistent wall thickness and R-value 6.6 performance through the bend. The jump is worth it when installing insulation on pipework that changes direction and requires a sealed, code-compliant thermal barrier. It simplifies installation while maintaining the specified temperature rating from -297 to 220 degrees F.

Suits installers needing plenum-rated corner

This product suits contractors insulating refrigeration, chilled water or hot water piping in plenum spaces where flame spread index 25 is required. It is not for installers who need unslit straight lengths for long pipe runs. Buyers requiring a different wall thickness, inside diameter or insulation material should look at alternative fittings. The fixed 1-inch wall and 2-inch pipe size limit its use to specific system specifications.

Highlights

  • Operating range from -297 °F to 220 °F
  • Thermal resistance rated at R value 6.6
  • Flame spread index limited to 25
  • Antimicrobial closed-cell foam resists microbial growth
  • Plenum rated for air-handling spaces

Specifications

BrandK-FLEX USA
TypeTarps

Questions about this item

What 90-degree elbow dimensions match a 2-3/8 inch tube OD and 1 inch wall?

The fitting is a 90-degree elbow for 2-3/8 inch outside diameter tube with a 1 inch wall thickness, made from Buna-N rubber/PVC closed-cell foam.

How do I install the unslit elbow without splitting it?

Slide the unslit elbow over the pipe end before joining sections, then seal the seam with compatible adhesive tape or mastic.

When should I replace the fitting if the antimicrobial protection degrades?

Inspect annually; replace if the black foam shows cracking, compression set, or moisture ingress that compromises the R-6.6 insulation value.

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