𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Graphite valve packing material on a coil


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

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✦ Synopsis


Dynamic sealing

TBA Sealing Materials Ltd was asked to develop a suitable asbestos-free gasket sheet for these pumps and the resultant material, Permanite SF 3500, is now in use with major split case pump manufacturers.

Permanite SF 3500 owes its success to a blend of rigid and fibrillating fibres, a high quality polymeric binder and a reinforcing fiUer system. Specially formulated surface layers were also needed and the finished product was able to overcome the disadvantages suffered by exfoliated graphite, general purpose aramid sheet and beater sheet.


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