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ArmaFlex Class 1 elastomeric tube

Armacell

ArmaFlex Class 1 elastomeric tube

Elastomeric tube for pipes in air-conditioning, refrigeration and process equipment — prevents condensation and saves energy.

Thickness
6–50 mm
Thermal conductivity (λ)
≤ 0.034 / ≤ 0.036 W/m·K at 0 / +20 °C mean · ASTM C518, EN ISO 8497
Service temperature range
-50 – +105 °C +85 °C when fully bonded to the surface

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See all models and sizesManufacturer documentsTechnical specifications

Product details

Pipe insulationElastomeric rubber foamArmacell

Closed-cell synthetic-rubber foam, tubes 2 m long

Thickness
6–50 mm
Thermal conductivity (λ)
≤ 0.034 / ≤ 0.036 W/m·K at 0 / +20 °C mean · ASTM C518, EN ISO 8497
Service temperature range
-50 – +105 °C +85 °C when fully bonded to the surface

What is it?

ArmaFlex Class 1 from Armacell is closed-cell synthetic-rubber insulation for pipes, ducts and vessels in air-conditioning, refrigeration and process equipment, to prevent condensation and save energy. No extra vapour barrier is needed. Outdoors it must be protected from UV.

What is it made of?

Elastomeric rubber foam · Tube

Which sizes are available?

Thickness 6–50 mm — Choose a size

Limitations to know

Outdoors, it must be painted or covered for UV protection within three days of installation, per the maker.

Where does the data come from?

ArmaFlex Class 1 TDS (11/2019, APAC)

Technical data from the manufacturer's documents Armacell · Checked 26 Sept 2026

Technical specifications

All values come from the manufacturer's documents, with conditions and test standards. Values the documents do not state are not shown.

PropertyValueConditions / standardSource
Thermal conductivity (λ)≤ 0.034 / ≤ 0.036 W/m·Kat 0 / +20 °C mean · ASTM C518, EN ISO 8497ArmaFlex Class 1 TDS (11/2019, APAC), p. 3
Service temperature range-50 – +105 °C+85 °C when fully bonded to the surfaceArmaFlex Class 1 TDS (11/2019, APAC), p. 3
Water vapour diffusion resistance (μ)≥ 10,000EN 13469, EN 12086ArmaFlex Class 1 TDS (11/2019, APAC), p. 3
Reaction to fireClass 1BS 476 Part 7ArmaFlex Class 1 TDS (11/2019, APAC), p. 3
Reaction to fireV-0UL 94ArmaFlex Class 1 TDS (11/2019, APAC), p. 3
Standards / certificationFM Approved (FM 4924) · GREENGUARD Gold—ArmaFlex Class 1 TDS (11/2019, APAC), p. 3

Models and sizes available

ModelThickness (mm)Length (mm)Pipe size
D62000ID 15–25 mm
F92000ID 6–60 mm
H132000ID 6–114 mm
M192000ID 6–140 mm
R252000ID 10–168 mm
T322000ID 10–168 mm
U382000ID 15–168 mm
V502000ID 20–168 mm

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Applications

PipesAC, chilled-water, hot-water and steam pipesAir-conditioning (HVAC)Ducts, refrigerant lines and HVAC noise

Highlights

  • BS 476 Part 7 Class 1
  • FM Approved (FM 4924)
  • Wall thickness 6–50 mm

Manufacturer documents

ArmaFlex Class 1 TDS (11/2019, APAC)Reference document · ask us on LINE for the file

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