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Low friction chevrons for valve stem packing

Publisher
Elsevier Science
Year
1995
Tongue
English
Weight
183 KB
Volume
1995
Category
Article
ISSN
1350-4789

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โœฆ Synopsis

Dynamic sealing

184 expanded PTFE sheets can be cut to size by using a scissors or knife. For sealing requiring more complex shapes, 185 Expanded PTFE joint sealant is a long, endless sealing material on a spool that can be laid out and cut to size. Self-adhesive strip holds it in place for assembly in the shop or on-site.

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## Dynamic sealing to 60% versus conventional wide unbalanced faces; the patent-pending graphite holder provides uniform pressure for better face squareness, tighter tolerances and greater sealing reliability. This eliminates the usual metal holder whose interference fit can cause uneven, distorti