CA2058265A1 - Graphite packing with ptfe discs - Google Patents

Graphite packing with ptfe discs

Info

Publication number
CA2058265A1
CA2058265A1 CA 2058265 CA2058265A CA2058265A1 CA 2058265 A1 CA2058265 A1 CA 2058265A1 CA 2058265 CA2058265 CA 2058265 CA 2058265 A CA2058265 A CA 2058265A CA 2058265 A1 CA2058265 A1 CA 2058265A1
Authority
CA
Canada
Prior art keywords
graphite packing
rings
packing
graphite
ptfe
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA 2058265
Other languages
French (fr)
Other versions
CA2058265C (en
Inventor
Ronald Ray Brestel
Ronnald James Funk
William Charles Scheffert
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fisher Controls International LLC
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of CA2058265A1 publication Critical patent/CA2058265A1/en
Application granted granted Critical
Publication of CA2058265C publication Critical patent/CA2058265C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Sealing Devices (AREA)
  • Details Of Valves (AREA)
  • Lift Valve (AREA)

Abstract

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.
CA002058265A 1990-12-21 1991-12-20 Graphite packing with ptfe discs Expired - Lifetime CA2058265C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US63209790A 1990-12-21 1990-12-21
US07/632,097 1990-12-21

Publications (2)

Publication Number Publication Date
CA2058265A1 true CA2058265A1 (en) 1992-06-22
CA2058265C CA2058265C (en) 2000-10-31

Family

ID=24534064

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002058265A Expired - Lifetime CA2058265C (en) 1990-12-21 1991-12-20 Graphite packing with ptfe discs

Country Status (2)

Country Link
CA (1) CA2058265C (en)
ZA (1) ZA9110077B (en)

Also Published As

Publication number Publication date
CA2058265C (en) 2000-10-31
ZA9110077B (en) 1993-01-27

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Legal Events

Date Code Title Description
EEER Examination request
MKEX Expiry
MKEX Expiry

Effective date: 20111220