Heat insulation of pipelines in food production

The food industry is one of the most dynamic and popular industries in the world. It must meet high standards and requirements to ensure that the ultimate consumers could purchase safe products. At any such production, special attention is paid to the piping of heating, air conditioning and ventilation. As these will affect not only the health of employees but also the quality of the product. Because the ingress of mould, fungus, decay products is simply unacceptable. The insulation needed to reduce heat losses in pipelines and for protection against influence of aggressive chemical environment. Insulation on the outside of the building protects the pipe from atmospheric precipitation and mechanical damage. To ensure that the pipelines have long been used, it should be protected from condensation, which can later lead to corrosion.

There are many nuances to be addressed even before the construction of the enterprise. Initially, develop technical documentation, which includes a list of necessary technical materials with calculations intended for building, production lines and installations. Carefully chosen the location of the construction enterprises in the area of production of raw materials.

The company has several types of rooms with different humidity –normal, elevated and high humidity and low temperature. Communications are divided into vertical and horizontal.

To vertical are ladders, fans, elevators, and horizontal pipes, vent pipe clearance, network engineering. Connect them and put in the basement and transport corridors.

Pipelines klassificeret categories:

  • pipe for corrosive and toxic products
  • truboprovody with low toxic elements and alkalis
  • other conventional pipes

For protection of steel and polypropylene pipes are used: vinyl liner, butyl rubber, polyethylene, cellular glass, textolite, folic, chloroprene rubber.

Before you choose the size of the pipes, and analyzes information about the fire elements, temperature, pressure of the transported tube. Then do a hydraulic calculation to determine the diameter of the pipe.

The pipelines are placed together with a cross section of a simple form horizontal or vertical rows. In between doing a certain distance, after you could easily maintain this system. Pipes are placed under a certain bias. If they are properly connected, you may experience vibration, thermal deformation and hydraulic shocks, which leads to breakage of equipment and building structures, and, of course, of pipes. Vibration in pipelines can occur due to uneven flow of liquid, gas tubes, etc. in order to eliminate vibration, is the calculation of all risks before installation works.

The main requirements to the thermal insulation of the production are:

  • fire safety
  • thermal resistance
  • Liteiny a lifetime

The main characteristics on which pay attention when choosing the material – thermal conductivity, elasticity, resistance to aggressive environments, resistance to temperature changes and the percentage of shrinkage.

Insulation thickness is chosen through its conductivity.

In a food plant is present aggressive environment and to make the insulation last longer, top-mounted protective covering or buy already with him. Standards for fire safety are determined by the provisions of SNiP. Also, in addition to fire resistance and protective coating watch how the material will behave in the event of fire (whether it will ignite or highly to smoke). For piping and equipment with plus and negative temperatures are used foam rubber. It comes in the form of tubes and rolls of different thicknesses. Withstands temperatures from -200 to 110 degrees. When installed indoors you don't need extra coverage and clips. This isolation can even be used for re-installation. Thanks to its airtightness, the material prevents loss of energy. Rubber in addition to its insulating properties, does not rot and prevents the formation of mold, which is so important in the workplace.


Also for thermal insulation of pipes and equipment used stitched mats and plates from mineral cotton wool. Can be coated with metal foil or mesh. Still using the cylinders, which are based include basalt fiber. The material is non-combustible, is resistant to acid and alkaline environment, oils that are present in food production. It is best to take this product with the coating (foil or galvanized casing), which greatly extend the life and protect from mechanical damage.



Making the right choice of thermal insulation material and its thickness can significantly reduce heat loss and will not need the additional cost of frequent repair of insulation. The range of insulation for pipes is quite extensive. You should carefully approach the choice of material, because errors can be identified immediately, but after a certain time or even several years.

Anna Lozenko