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Black flexible elastomeric tee pipe fitting with closed-cell foam structure

Nomaco Kflex

Nomaco Kflex 801-T-068418 Tee Trap

SKU CH-2CK6-DMBWT MPN 801-T-068418

Elastomeric tee fitting insulates 3½-inch pipe with closed-cell NBR/PVC foam rated for -297 °F to 220 °F and R-4.6 thermal resistance

  • TypeDrain Components
  • ColorBlack
  • Operates from -297 °F to 220 °F for extreme temperature resilience
  • Closed-cell elastomeric foam blocks moisture and reduces heat loss
  • Antimicrobial and flame-retardant material meets UL 94 and flame spread 25
  • Pre-formed tee fits 4-1/8" tube for fast, unslit installation
  • R-value 4.6 delivers high thermal efficiency in plenum-rated systems

Elastomeric Tee Fitting for Pipe Insulation

This Nomaco Kflex tee fitting provides thermal insulation for pipe junctions. It is made from closed-cell NBR/PVC based elastomeric foam and comes in black. The unslit design is intended for installation on 3-1/2 inch pipe with a 4-1/8 inch tube outside diameter.

Plumbers and HVAC installers needing fire-rated

Suitable for professionals requiring plenum-rated material with a flame spread index of 25 and UL 94 compliance. The antimicrobial, flame-retardant foam operates between -297 and 220 degrees Fahrenheit. Not suited for installers who need pre-slit insulation for faster wrapping or a different wall thickness than 3/4 inch.

4-1/8 inch inside diameter with 3/4 inch wall

The fitting matches a specific tube outside diameter of 4-1/8 inches and provides an R-value of 4.6. This dimensional combination determines compatibility with the target piping system.

Highlights

  • Operates from -297 °F to 220 °F for extreme temperature resilience
  • Closed-cell elastomeric foam blocks moisture and reduces heat loss
  • Antimicrobial and flame-retardant material meets UL 94 and flame spread 25
  • Pre-formed tee fits 4-1/8" tube for fast, unslit installation
  • R-value 4.6 delivers high thermal efficiency in plenum-rated systems

Specifications

TypeDrain Components
ColorBlack
BrandNomaco Kflex
Model801-T-068418

Questions about this item

Should I pick the 4-1/8" tee for my 3-1/2" pipe or a different size?

This tee is made for a 3-1/2" pipe with a 4-1/8" outside diameter, so choose it when your tubing matches that size.

What does the R-4.6 rating deliver once the tee is installed on a live line?

The R-4.6 value provides thermal resistance that limits heat loss or gain through the fitting at operating temperatures up to 220 °F.

How does the UL 94 listing and 25 flame-spread index limit where I can use this fitting?

The UL 94 rating and 25 flame-spread index qualify the tee for plenum spaces and other areas requiring low flame and smoke development.

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