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Thermal insulation for the pipeline helps to prevent freezing and ensures uninterrupted operation of communications in the winter period.
What characteristics should the insulation have:
Low thermal conductivity.
Refractory.
Resistance to aggressive environment: reagents, biological substances.
High water resistance.
Wear resistance, the possibility of multiple use.
Simplicity of installation.
The most effective heater
Times of warm cotton blankets sunk into oblivion. The construction market is replete with materials for this purpose.
The most popular:
Basaltic. It is made in the form of cylinders protected by a layer of parchine, roofing material or foilizol. Installation of basalt insulation does not require special forces for pipes. The high cost of the material is compensated by the quality and a long period of use.
Glass wool. Used for thermal insulation of metal -plastic and plastic pipelines. The minus of the material is the low density of glass wool, which requires additional layers of insulation, usually it is fiberglass or roofing material.
Polistyle foam is a leader among insulation. Reusable material, does not require special forces when installing. High operational characteristics allow the use of polystyrene foam in rooms, on the street and in the ground.
Ways of insulation
Installation of water supply networks is carried out below the level of freezing of the soil. But the possibilities of modern technologies allow you not to deepen the pipes, as usual, or completely lay the water supply on Earth. How to insulate the water pipes laid at a small depth or on the surface of the earth:
Heating the pipeline with a heating cable that prevents the system damage even in severe frosts. Cables are installed both outside and inside the pipes. The method is effective for protecting against freezing of open water pipelines outside the room, in the basement or laid at a small depth.
Insulation, pipe in the pipe. The method is suitable if the pipes are laid on the surface. Basalt material or polystyrene foam are used. Pipes are wrapped with heater, a cable is stretched inside, which in emergency cases of helping to drag a spare pipe or hose inside the heat -insulating layer.
Air insulation. Used for finely chased water systems. All types of insulation are suitable. The pipes are covered on top of the heat -insulating layer, forming an umbrella, and the temperature does not drop from below.
High pressure. The physical properties of fluid are used: water does not freeze under pressure. The receiver is cut into the system and the pressure is pumped up. The method is effective on submersible pumps, their use allows you to injure the pressure to 5-6 atmospheres. Before its increase, make sure that the pipes are strong enough and the tension will withstand.
It is important that the entire system is under high pressure. For this, the water pump is installed with a check valve.
