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Black foam pipe insulation coil, unslit, half-inch wall

Nomaco Kflex

Nomaco Kflex 6RX048318 Trap 3-1/8" 6ft 1/2" Wall

SKU CH-CDPH-57NFS MPN 6RX048318

Black NBR/PVC elastomeric pipe insulation, 6 ft length with 1/2 in wall thickness, fits 3-1/8 in tube size, rated from -297 °F to 220 °F with R-value 2.7

  • Product typeDrain Components
  • Main materialHAWA
  • Product colorBlack
  • Protects pipes from extreme cold down to -297 °F
  • Handles high heat up to 220 °F for reliable performance
  • NBR/PVC elastomeric material resists moisture and condensation
  • Delivers R-value 2.7 thermal resistance for energy efficiency
  • Fits 3-1/8 inch tubing with 1/2 inch wall thickness

Insulation for 3-1/8" pipe

This unslit pipe insulation fits a nominal 3-1/8 inch tube size. The NBR/PVC based elastomeric material provides thermal protection across a broad temperature range. The product comes in a six-foot length with a half-inch wall thickness. It is supplied new and ready for installation.

Indoor plumbing and HVAC runs

The insulation suits installers covering copper or iron pipe in heating, cooling or refrigeration systems. The unslit design requires cutting and sealing on site, so it is less convenient for retrofit jobs where pre-slit wrap speeds the work. Buyers needing a fire-rated jacket or a different wall profile should look at alternative specifications.

Half-inch wall thickness

The 1/2 inch wall delivers an approximate R-value of 2.7 for thermal resistance. This single dimension determines whether the insulation meets the project's energy-code or condensation-control requirements. Verify the required thickness against local codes before purchasing.

How it compares

Measured against everything we stock in Drain Stoppers, Strainers & Traps, at today’s prices. Recalculated every night.

Price $7.99
Cheaper than about 88% of the 4,240 comparable items (median $31.99).

Specifications

Product
Brand nameNomaco Kflex
Model name6RX048318
Product typeDrain Components
Product colorBlack
Size & build
Main materialHAWA

Questions about this item

Does the NBR/PVC elastomeric material degrade or need replacement after long-term exposure?

The NBR/PVC elastomeric material is designed for durability across a -297°F to 220°F range and does not require scheduled replacement under normal conditions.

What is the maximum continuous temperature the 1/2" wall insulation can withstand before losing effectiveness?

The insulation is rated for a maximum continuous temperature of 220°F; sustained exposure above this limit will degrade the material and reduce its thermal performance.

Does the black NBR/PVC foam emit any odor or off-gassing when running at high temperatures all day?

The product carries a California Proposition 65 warning for chemicals known to cause reproductive harm, but no specific odor or off-gassing data is provided for high-temperature operation.

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