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Black flexible elastomeric 90-degree elbow pipe fitting 2-7/8 inch diameter 3/4 inch wall thickness

K-Flex Usa

K-Flex Usa 801-LRE-068278 90-degree elastomeric pipe fitting 2-7/8" x 3/4

SKU CH-DCR5-1RCH5

A 90-degree elastomeric pipe elbow with 2-7/8" inside diameter and 3/4" wall thickness, rated from -297°F to 220°F and plenum-approved

  • Withstands extreme cold to -297 °F for cryogenic pipe runs
  • Handles continuous heat up to 220 °F without degradation
  • R-value 4.8 delivers strong thermal resistance for energy savings
  • Flame-spread index 25 meets plenum-rated fire-safety requirements
  • Antimicrobial closed-cell foam resists mould growth inside ductwork

90-degree elastomeric elbow fitting

This K-Flex USA 90-degree elbow pipe fitting is designed for thermal insulation on piping systems. It suits installers and maintenance teams needing a flexible, closed-cell foam elbow that conforms to 2-7/8 inch tube outside diameter. The unslit Buna-N rubber and PVC construction provides antimicrobial and flame-retardant protection for mechanical lines.

Check pipe size and temperature range

Verify the existing pipe has a 2-1/2 inch nominal size and 2-7/8 inch outside diameter to match this fitting. Confirm the system operating temperature stays within the -297 to 220 degrees Fahrenheit limits. Ensure the plenum-rated, flame spread index 25 specification meets local code requirements for the installation location.

Replaces rigid or non-plenum elbows

This fitting upgrades from rigid insulation elbows that cannot flex around tight bends or non-plenum rated materials restricted in air-handling spaces. The jump is worth it when antimicrobial resistance and an R-value of 4.8 are required for condensation control on chilled water or refrigeration lines. It is not for installers needing slit-style wrap or larger diameter coverage.

Highlights

  • Withstands extreme cold to -297 °F for cryogenic pipe runs
  • Handles continuous heat up to 220 °F without degradation
  • R-value 4.8 delivers strong thermal resistance for energy savings
  • Flame-spread index 25 meets plenum-rated fire-safety requirements
  • Antimicrobial closed-cell foam resists mould growth inside ductwork

Specifications

BrandK-FLEX USA

Questions about this item

Does the elbow arrive ready to fit or do I need extra adhesive or tape?

The fitting is unslit elastomeric insulation; it slides over the pipe but joint sealing tape or compatible adhesive must be purchased separately for a complete vapour barrier.

Should I select the 2-7/8 in. ID with 3/4 in. wall or a different size for 2-1/2 in. pipe?

This model matches 2-1/2 in. pipe with a 2-7/8 in. inside diameter and 3/4 in. wall, giving an R-value of 4.8; other sizes would not fit correctly.

What does the 220 °F maximum temperature mean for a steam line?

The insulation is rated to 220 °F continuous exposure, so it is suitable for low-pressure steam and hot-water lines operating at or below that temperature.

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