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The discharge of particularly aggressive wastewater from facilities such as canteens, commercial kitchens, laboratories, medical facilities, etc. brings about special demands on drainage pipes.
Due to the properties of the materials used, KML offers all advantages attributed to a cast iron drainage system such as soundproofing properties, fire safety, temperature resistance, etc. In addition to this, KML pipes are coated on both sides, inside and outside, applying a highly resistant coating with a special procedure; this provides protection against aggressive sewage water and ensures that the pipes are suitable for underground laying.
Specifications
- Density
approx. 7,2 kg/dm³
(71,5 kN/m³ ) - Tensile strenght
≥ 150 MPa for fittings
≥ 200 MPa for pipes - Compressive strength
approx. 3 to 4 times the value for tensile strength - Shear strength
approx. 1.1 to 1.6 times the value for tensile strength - Crushing strength
(peak compressive strength) ≥ 350 MPa - Modulus of elasticity
8•104 to 12•104 N/mm² - Poisson’s ratio
~(0,3) - Coefficient of thermal conductivity
50-60 W/mK (at 20º C) - Coefficient of linear expansion
only 0.0105 mm/mK (between 0 and 100º C), more or less similar to concrete; can be set in concrete without any difficulty
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