Reliability of mechanical seals. Mechanical seals work in a variety of conditions, so along with leaks, durability and power losses, their operational reliability and reliability are crucial. Unlike previously used glands, mechanical seals can fail instantly, for example, due to separation of sealing surfaces, destruction, cracking of friction surfaces from thermal stresses, with unacceptably high temperatures and their differences. Due to the increased danger of poisonous explosive, flammable and radioactive media, as well as large costs required for their possible repairs, often causing downtime of entire installations, it is necessary to carefully check the inaccuracy and reliability of the selected...
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Deterioration of seals in case of chemical effect. The materials of friction pairs should be selected taking into account the chemical aggressiveness of the condensed medium. A slight erosion of materials with a liquid to be sealed can often be foreseen by tolerances and compensated by an appropriate allowance for the wall thickness. However, it must be taken into account that corrosion at elevated temperatures can increase several times. It is known, for example, that sliding surfaces, which are heated much more strongly than the liquid to be condensed, are oxidized particularly strongly. Forecast of durability of mechanical seals. Answer...
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