فارسی
- Extinguishing properties
- Separating effect: The closed foam cover separates the combustion zone from the ambient air and prevents any further supply of oxygen to the flammable material.
- Cooling effect: The water drained from the foam evaporates in the area of the flame front whereby heat is withdrawn and the reaction velocity between the flammable material and atmospheric oxygen is reduced significantly. The flammable material is cooled down by the water/ foam solution discharged by the foam.
- Cover effect: The closed foam cover stops any further gas evaporation from burning materials, i.e. flammable gases from the incendiary matter can no longer get into the combustion zone cooling the burning material at the same time reduces the vapor pressure whereby outbursts of gas and thus re-ignition are avoided. The preventive application of foam onto spilled volatile products prevents emissions harmful to the environment. This also significantly reduces the danger of fire.
- Repression effect: Flooding spaces, channels, plant parts, etc. with high or medium expansion foam represses the atmospheric oxygen and flammable gases necessary for the combustion process.
- Insulation effect: The low thermal conductivity of the foam insulates flammable material which has not yet caught fire or has already been extinguished against thermal radiation and ignition sources.