A Guide to Mechanical Seals
Mechanical stoppers are tools that help in connecting systems so as to prevent unprecedented outflows. Additionally, the seals, prevent leakages by holding pressure or even by eliminating contamination. The efficiency of the mechanical seals is reliant on the adhesion in the instance of sealants and compression in the event of gaskets. It is of utility to comprehend additional methods of forming a seal before investigating how mechanical seals operate. An example of the traditional seals that were commonly used is the Gland packing. Gland packing is a plaited, rope like material that is crammed around the shaft – physically padding the cavity between the shaft and the pump housing. However, people are switching to the mechanical seals due to numerous reasons. One of the main reason as to why many people are switching over to mechanical pumps is due to the fact that the Gland packing seals requires pressing besides the shaft so as to lessen outflow, this implies that pump will require more power in order to turn the shaft hence wasting energy. Additionally, the friction of the shaft implies that the Gland packing will need to be supplied with large amount of water for cooling purposes. Another demerit of the packing is that the friction of the rotating shafts results into wearing of the shafts in the long run thereby resulting in increased leakage. Also, it is very costly to repair the worn out shafts as a result of the friction between the rotating shafts.
There are numerous reasons as to why people prefer using mechanical seals. These include, when using a mechanical seal, there is no visible leak, this implies that the seals do leak vapor when the fluid reaches the atmospheric side of the seal faces. Additionally, in the mechanical seals, the cartridge seals does not destroy the shaft of the pump. The ability of the mechanical seal of self-adjusting when their faces begin to wear due to friction helps in lowering the day to day maintenance cost. Less water is used when using a mechanical pump and also there is less corrosion of a plant equipment in the event that the product is contained in the pump. An end face mechanical seal is an example of a mechanical seal that is used in rotating gear, such as thrusts, blenders, blowers, and compressors. In most case the fluid leak out of the pump between the rotating shaft and the stationary pump casing when the pump functions. Moreover, the mechanical seal face geometry is considered to be the one of the most critical design elements within a mechanical seal. The seal face properties include the balance diameter, the centroid setting, and the surface area. Other properties include, the surface finish, the drive mechanism, and the face topography.