ChimneyLab Europe have more than 20 years experience in type testing chimneys and related products for CE-certification

Testing of flexible liners

Accredited initial type test accordingly to EN 1856-2

Typical test sequence for a negative pressure (N1), dry (D) flexible liner:

  • Compressive strength of fittings and supports
  • Tensile strength
  • Crushing resistance
  • Flexibility
  • Torsion strength
  • Pulling force
  • Gas tightness
  • Thermal performance test
  • Thermal resistance (calculated)
  • Flow resistance of liner and fittings (calculated)
  • Dimensions and tolerances



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