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Wholesale Kingflex rubber foam insulation tube Supplier, Factory
Wholesale Kingflex rubber foam insulation tube Supplier, Factory
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Wholesale Kingflex rubber foam insulation tube Supplier, Factory
Wholesale Kingflex rubber foam insulation tube Supplier, Factory

Wholesale Kingflex rubber foam insulation tube Supplier, Factory

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
Technical Data Specification
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 (Water vapor diffusion resistance) - ≥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 & Part 7
Flame Spread and Smoke Developed Index - 25/50 ASTM E 84
Oxygen Index - ≥36 GB/T 2406, ISO 4589
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
Key Features & Benefits
Insulation Performance
  • Fire-resistance: Excellent fire-resistance performance & Sound absorption.
  • Thermal conductivity: Exceptionally low thermal conductivity (K-Value).
  • Moisture resistance: Good moisture resistance built into the structure.
  • Eco-friendly: Environmentally friendly material composition.
  • Installation: Easy to install with a clean and professional appearance.
Structure and Installation
  • 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 the need for an additional vapor retarder.
  • Complete size range suitable for HVAC/R setups.
  • Enables easy distinction between different pipelines.
Product Overview
Insulation Roll Material
Insulation Application Gallery
Frequently Asked Questions
What is the temperature range for this elastomeric foam insulation?
This elastomeric insulation material operates effectively within a temperature range of -50°C to 110°C, making it highly versatile for heating, ventilation, air conditioning, and refrigeration (HVAC/R) systems.
What fire ratings does the insulation material achieve?
The material achieves Class 0 & Class 1 fire ratings in accordance with the BS 476 Part 6 and Part 7 standards. It also meets the ASTM E 84 standard with a Flame Spread and Smoke Developed Index of 25/50.
Why is the closed-cell structure beneficial for pipeline insulation?
The closed-cell structure prevents moisture penetration and offers excellent condensation control. This design helps minimize energy loss and acts as a built-in vapor barrier, eliminating the need for an additional external vapor retarder.
What is the thermal conductivity (K-Value) of the material?
The insulation has exceptional thermal performance with thermal conductivity values 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, tested in compliance with ASTM C 518.
Does this insulation offer resistance to mold, ozone, and UV rays?
Yes. It exhibits excellent environmental resistance, categorized as "Good" under ASTM G21 for fungi resistance, GB/T 7762-1987 for ozone resistance, and ASTM G23 for UV and weather resistance, ensuring long service life in diverse conditions.

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