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Pressure compensation and rotary seal for drilling unit

Publisher
Elsevier Science
Year
2009
Tongue
English
Weight
102 KB
Volume
2009
Category
Article
ISSN
1350-4789

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โœฆ Synopsis

inner diameter (d1, 7, 9) of the seal (2) is larger than all of the national and/or international sealing and working standard dimensions for the inner diameter for flat gaskets, known to the public before 27 November 2007 or before 27 November 2008, in relation to the pre-defined outer diameter (d2, 2a, 11). The purpose is to ensure that the gasket does not overlap the flow passage when it is not correctly centralised.

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ary seal assembly. This enables the mechanical seal to be fitted to equipment where the shaft is out of alignment with the equipment casing. This ability to accommodate angular variation can be achieved without any consequential misalignment of the sealing faces of the seal.