Nomaco Kflex 801-T-048258 2-5/8" x 37/64" Elastomeric Tee Pipe Fitting

Nomaco Kflex 801-T-048258 Tee Fitting

This Nomaco Kflex elastomeric tee fitting is designed for insulating pipe junctions in commercial and industrial mechanical systems. It suits installers who need a flexible, closed-cell foam component that conforms to irregular piping geometry. The unslit installation style requires the fitting to be slid over tubing before final assembly. Buyers needing pre-slit or self-sealing insulation should consider alternative formats.

Operating Limits of Elastomeric Insulation

The Buna-N rubber and PVC blend withstands a minimum operating temperature of -297 degrees F and a maximum of 220 degrees F. Its closed-cell foam structure delivers an R-value of 3.2 and achieves a flame spread index of 25 with a plenum rating. The material resists microbial growth and provides fire-retardant performance. Systems operating beyond these thermal boundaries or requiring different fire ratings will need a different insulation specification.

Upgrade from Basic Wrap or Tubing

This tee fitting replaces field-fabricated mitre joints or taped wrap insulation at pipe branches, eliminating gaps that reduce thermal efficiency and invite condensation. The jump is worth it when consistent wall thickness of 1/2 in and factory-moulded geometry are required for code compliance or long-term vapour sealing. It does not serve straight-run piping where simple tubular insulation is sufficient.