ABSTRACT
The greatest single influence on seal performance is its environment. The temperature at the seal during operation, including any necessary allowance for seal friction heat. Temperature. Reduction: In most pump applications, the ideal is to have the seal at pumping temperature. The motion of the element being sealed has a major bearing on seal form, construction, and operation, hence the distinction between rotating and reciprocating sealed elements. Fixed packing for rotating shafts is a recent innovation, born of the need to seal solids-laden liquids with minimum dilution. Mechanical seal designs include many variations. The one clear distinction between them is the means of sealing the flexibly mounted face. Seal ring material has to match the design pressure drop. The essential feature of this seal arrangement is a series of seal ring assemblies, each located in a separate groove with the objective of realizing a progressive pressure drop over the seal.
