Stone wool

TECH Pipe Section MT 4.1

Preformed, concentric-rolled stone mineral wool pipe section
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TECH Pipe Section MT 4.1 is the preformed concentric-rolled stone mineral wool pipe section for the insulation of industry process pipelines for diameters from 12.7 mm to 254 mm (1/2'' to 10''), exhaust ducts and stacks. Pre-slit to facilitate the opening and fitting over the pipes, TECH Pipe Section MT 4.1 are easy to handle. With a length of 1.2m, installation time on straight pipes and thermal bridges can be reduced by 20%.

 TECH Pipe Section MT 4.1 can be used for service temperatures of up to 650°C.

Key Benefits

  • Sound absorption
  • High service temperatures
  • Fire reaction
  • Mechanical resistance

Technical Characteristics

Symbol Unit Quantities and declared values Standard
Specific thermal capacity Symbolc UnitkJ/(kg.K) Quantities and declared values1.03 StandardISO 10456
Reaction to fire Symbol- Unit- Quantities and declared valuesNon combustible; Euroclass A1L Fire Spread Index = 0; Smoke Development Index < 20 StandardE84
Chemical behaviour Quantities and declared valuesAS-quality (Leachable Chloride ≤10ppm)  Leachable chloride content less than 10 ppm (CL10) Do not contribute to corrosion of stainless steel StandardAGI Q132 EN 13468 ASTM C795/ C871
Application field Quantities and declared valuesProduct for use in technical applications, such as small diameter pipes, exhaust ducts and stacks, with need for thermal and/or acoustic insulation performances especially at high temperatures StandardEN 14303
Material Quantities and declared valuesStone mineral wool, preformed concentric-rolled in shape of pipe section. With quality marks EUCEB, unrisky regarding health according to regulation EC No 1272/2008 Note Q StandardCINI 2.2.03
Water behaviour Quantities and declared values   No short term water absorption by partial immersion (WS1 ≤ 1 kg/m2) Standard-
Miscellaneous Quantities and declared valuesDesignation code : MW-EN 14303-T8/T9-ST(+)650-WS1 StandardEN 14303
Quality management Quantities and declared valuesCE-marked according to EN 14303 ISOVER is certified according to EN ISO 9001 and EN ISO 14001 StandardEN 14303 EN ISO 9001 EN ISO 14001

Thermal Conductivity

Characteristic Symbol Unit Quantities and declared values Standard
CharacteristicThermal conductivity SymbolT Unit[°C] Quantities and declared values50 Quantities and declared values100 Quantities and declared values150 Quantities and declared values200 Quantities and declared values250 Quantities and declared values300 StandardISO 8497
ISO 13787
Symbolλ Unit[W/(m•K)] Quantities and declared values0.038 Quantities and declared values0.045 Quantities and declared values0.054 Quantities and declared values0.063 Quantities and declared values0.073 Quantities and declared values0.084
CharacteristicThermal behaviour SymbolT Unit[°C] Quantities and declared valuesMaximum service temperature 650 (under 500 Pa)
Maximum service temperature 700
StandardEN 14707

Standard Dimensions

Thickness d [mm]
Thickness d [mm]30
Thickness d [mm]40
Thickness d [mm]50
Thickness d [mm]60
Thickness d [mm]80
* The information refers to linear meters / pack. 
All dimensions require minimum order quantities / other dimensions on request.