2021-09-26 Mechanical seals with improved functionality not only prevent the leakage of liquids or gases handled by the machine to the outside, but also increase the operating efficiency of the machine, thus helping to achieve energy savings and prevent environmental pollution. In addition, in some cases, the media handled by rotating machinery can lead to dangerous accidents in case of leakage. Therefore, manufacturing supported by reliable engineering expertise requires mechanical seals with a high degree of reliability.