Graphite packing with ptfe discs

Details Graphite packing with ptfe discs Graphite packing with ptfe discs

F - Mech Eng,Light,Heat,Weapons

16

K

F16K 41/00 (2006.01) F16J 15/20 (2006.01)

Patent

CA 2058265

A fluid valve graphite packing assembly with graphite packing rings and thin PTFE disc rings surrounding an operating valve member. Softer graphite packing rings on the interior are,bounded by progressively harder graphite packing rings. A PTFE disc ring is inserted between the graphite packing rings. The packing is subjected to sufficient packing stress to cause the PTFE disc rings to extrude onto the operating valve member.

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