Wholesale isolation pipe 1/4" ID Manufacturer, Manufacturers

Kingflex is the fiber-free, flexible, elastomeric pipe insulation for reliable protection against condensation, mold, energy loss and ultraviolet radiation in residential and commercial applications. The closed-cell nature of elastomeric foam insulation provides superior protection against thermal losses, condensation and moisture accumulation that leads to mold. It is the ideal choice for insulating mechanical piping systems.

Product Description

Thermal Insulation Application

Growth in the construction industry and many other industrial segments, combined with concerns over rising energy costs and noise pollution, is fueling market demand for thermal insulation. With more than four decades of dedicated experience in manufacturing and applications, the industry leader is riding on the top of the wave.

Insulation Materials Close-up
Insulation Materials Structure
Insulation Tubes

Key Product Advantages

  • 1 Closed-cell structure provides excellent condensation and energy-loss control
  • 2 Effectively retards degradation due to ultraviolet (UV) radiation
  • 3 Flexible material with dusted, relaxed ID’s for easy installation
  • 4 Superior toughness to withstand on-site handling
  • 5 Built-in vapor barrier eliminates need for additional vapor retarder
  • 6 Complete size range for HVAC/R systems
  • 7 Designed to distinguish clearly between different pipelines
Standard Dimensions: Nominal wall thicknesses of 1/4”, 3/8″, 1/2″, 3/4″, 1″, 1-1/4”, 1-1/2″ and 2” (6, 9, 13, 19, 25 , 32, 40 and 50mm). Standard length configuration is 6ft (1.83m) or 6.2ft (2m).

Technical Data Sheet

Property Unit Value Test Method
Temperature range °C -50 to 110 GB/T 17794-1999
Density range Kg/m³ 45-65 ASTM D1667
Water vapor permeability Kg/(m.s.pa) ≤0.91×10⁻¹³ DIN 52 615 / BS 4370 Part 2 1973
μ - ≥10000 -
Thermal Conductivity W/(m.k) ≤0.030 (-20°C) ASTM C 518
≤0.032 (0°C)
≤0.036 (40°C)
Fire Rating - Class 0 & Class 1 BS 476 Part 6 & 7
Flame Spread and Smoke Developed Index - 25/50 ASTM E 84
Oxygen Index - ≥36 GB/T 2406, ISO4589
Water Absorption, % by Volume % 20% ASTM C 209
Dimension Stability - ≤5 ASTM C534
Fungi resistance - Good ASTM G21
Ozone resistance Good GB/T 7762-1987
Resistance to U.V. and weather Good ASTM G23
Rubber Foam Application Scenarios

Rubber Foam Insulation could be used in schools, hospitals, government institutions and commercial spaces of all types that value long-term performance. Its moisture-resistant characteristics make it especially valuable on chilled-water and refrigeration piping where condensation might otherwise soak through fibrous types of insulations, significantly degrading their thermal performance, leaving them susceptible to fungal growth and ultimately shortening their life cycle. Moisture-resistant insulation, however, maintains its physical and thermal integrity -- for the life of the mechanical system!

Insulation Pipes Installation
Insulation Sheets and Materials

Frequently Asked Questions

What are the primary benefits of the closed-cell structure in rubber foam insulation?
The closed-cell structure provides exceptional condensation control and prevents energy loss, maintaining high thermal efficiency in HVAC/R and piping systems.
Can this insulation material be installed outdoors under sunlight?
Yes. The material effectively retards degradation due to ultraviolet (UV) radiation and shows good resistance to weathering (tested under ASTM G23).
What sizing options are available for different piping needs?
It comes in nominal wall thicknesses ranging from 1/4” up to 2” (6mm to 50mm) and standard lengths of 6ft (1.83m) or 6.2ft (2m) to support a wide range of pipeline sizes.
Why is rubber foam preferred over fibrous insulation for refrigeration piping?
Fibrous insulation can absorb moisture from condensation, which degrades thermal performance and promotes fungal growth. Rubber foam is inherently moisture-resistant, maintaining its structure and thermal performance for the life of the system.
What fire safety ratings does this insulation hold?
It meets Class 0 and Class 1 standards under BS 476 Part 6 & 7 testing, and has a Flame Spread and Smoke Developed Index of 25/50 according to ASTM E 84.

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