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China Kingflex rubber foam insulation tube Manufacturers, Pricelist
China Kingflex rubber foam insulation tube Manufacturers, Pricelist
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China Kingflex rubber foam insulation tube Manufacturers, Pricelist
China Kingflex rubber foam insulation tube Manufacturers, Pricelist

China Kingflex rubber foam insulation tube Manufacturers, Pricelist

Kingflex rubber foam insulation tube has better heat-preservation effectiveness than PE material. Because of its best heat insulation property, they are widely used in chilled-water pipes, water pipes, air ducts of family air-conditioner, house-use fission air-conditioning and its joint pipes; side board, cover and bottom board and back board; hot-water pipes of building inner fitment, etc.
  • 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 with 6ft (1.83m) or 6.2ft(2m).
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Product Description

Technical Data
Property Unit Value Test Method
Temperature range °C (-50 - 110) GB/T 17794-1999
Density range Kg/m³ 45-65Kg/m³ 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)
≤0.032 (0°C)
≤0.036 (40°C) 		ASTM C 518
Fire Rating - Class 0 & Class 1 BS 476 Part 6 & Part 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 21
Ozone resistance - Good GB/T 7762-1987
Resistance to U.V. and weather - Good ASTM G23
Features Overview
  • Excellent fire-resistance performance & Sound absorption.
  • Low thermal conductivity (K-Value).
  • Good moisture resistance.
  • Environmentally friendly.
  • Easy to install & Nice appearance.
  • Closed-cell structure provides excellent condensation and energy-loss control
  • Effectively retards degradation due to ultraviolet (UV) radiation
  • Flexible material with dusted, relaxed ID’s for easy installation
  • Superior toughness to withstand on-site handling
  • Built-in vapor barrier eliminates need for additional vapor retarder
  • Complete size range for HVAC/R
  • Distinguish between different pipelines
Application Details
Product Specification
Installation Display
Frequently Asked Questions
What is the operating temperature range for this insulation material?
This insulation material is designed to operate efficiently within a temperature range of -50°C to 110°C, making it highly versatile for various thermal applications.
How does the closed-cell structure benefit condensation control?
The closed-cell structure inherently resists moisture penetration, achieving a built-in vapor barrier (water vapor permeability ≤0.91×10⁻¹³ Kg/(m.s.pa)). This effectively prevents condensation and controls energy loss without requiring additional vapor retarders.
What is the thermal conductivity rating of this product?
According to ASTM C 518 standards, the material has low thermal conductivity (K-Value) rates of ≤0.030 W/(m.k) at -20°C, ≤0.032 W/(m.k) at 0°C, and ≤0.036 W/(m.k) at 40°C.
Does this insulation material offer reliable fire resistance?
Yes, it achieves a Class 0 & Class 1 fire rating in compliance with BS 476 Part 6 & 7. Additionally, it has a Flame Spread and Smoke Developed Index of 25/50 under ASTM E 84.
Is the material resistant to environmental factors like UV and ozone?
Yes, the material exhibits excellent resistance to ozone (tested under GB/T 7762-1987), fungi (ASTM 21), and U.V. radiation & weathering (ASTM G23), ensuring long-term durability.

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