The pipes heatisolated, the heatisolated pipes
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Scope:
Pipes PPU are applied to elevated, underground beskanalny and channel laying of heating mains of thermal networks, and also pipelines of hot and cold water supply.
Because of the high qualitative characteristics and reliability of a pipe in a ppa of isolation are often used when laying main, distributive, assembly, technological and other neftegazo-and products pipelines, and also pipeline systems of industrial function.
Advantages:
the term of operation is more than 30 years.
polyurethane foam possesses the lowest of modern heat insulators heat conductivity. It causes minimum necessary thickness of thermal insulation to a pp (5 cm to a pp on heat conductivity are equivalent about 10 cm of mineral wool) that allows to reach the greatest possible energy saving indicators.
working temperature of operation to a pp reaches +140 °C
polyurethane foam is steady against moisture influence
PPU possesses high adhesion (stickiness) with a surface of a pipe and a hydroprotective cover that causes rigidity and durability of a heat-insulating design.
production capacity makes 100-150 km. on average diameter of 219 mm.
Thus, application allows an isolation pp for pipes:
to increase service life of pipelines till 30 years (old types of pipelines - no more than 15 years),
to reduce thermal losses by 10 times to 2 (old types of pipelines lose up to 20%),
to lower expenses: capital for 20% (construction of channels, chambers for installation of shutoff valves is not required), operational by 10 times, repair by 5 times,
existence of the system of quick and remote control (SQRC) allows to establish and eliminate the arisen defects (polyurethane foam moistening) and, as a result, to prevent or to quickly eliminate the accidents typical for thermal networks of other designs.
protection against the wandering currents and the structure of drainage system is not required.
Because of the high qualitative characteristics and reliability of a pipe in a ppa of isolation are often used when laying main, distributive, assembly, technological and other neftegazo-and products pipelines, and also pipeline systems of industrial function