FR2439340A1 - Annular seals comprising steel or PTFE hoops with oblique interference - for sealing large bore, high pressure pneumatic, hydraulic or mechanical systems, esp. butterfly valves - Google Patents

Annular seals comprising steel or PTFE hoops with oblique interference - for sealing large bore, high pressure pneumatic, hydraulic or mechanical systems, esp. butterfly valves

Info

Publication number
FR2439340A1
FR2439340A1 FR7830127A FR7830127A FR2439340A1 FR 2439340 A1 FR2439340 A1 FR 2439340A1 FR 7830127 A FR7830127 A FR 7830127A FR 7830127 A FR7830127 A FR 7830127A FR 2439340 A1 FR2439340 A1 FR 2439340A1
Authority
FR
France
Prior art keywords
esp
seal
ptfe
hydraulic
mechanical systems
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.)
Withdrawn
Application number
FR7830127A
Other languages
French (fr)
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.)
Individual
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
Priority to FR7830127A priority Critical patent/FR2439340A1/en
Publication of FR2439340A1 publication Critical patent/FR2439340A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/16—Sealings between relatively-moving surfaces
    • F16J15/26—Sealings between relatively-moving surfaces with stuffing-boxes for rigid sealing rings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/16—Sealings between relatively-moving surfaces
    • F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
    • F16K5/06—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor
    • F16K5/0663—Packings
    • F16K5/0673—Composite packings

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sealing Devices (AREA)
  • Lift Valve (AREA)
  • Joints Allowing Movement (AREA)

Abstract

Annular seal is made of two annular profiles which overlap radially with an oblique interface and which are made of material having a low degree of elasticity and compressibility. The oblique faces allow the two profiles to slide in response to compression of the seal in a supporting channel until contact is firm on the interface and the external faces of the seal simultaneously. Seal is suitable for sliding joints, e.g. between a rotary shaft and a cylindrical bearing, or for static joints, for pneumatic, hydraulic or mechanical systems, esp. for sealing utterfly valves, allowing large bore valves to be made tight against pressures which would extrude an annular joint of a highly flexible or compressible material. Seal components are esp. of stainless steel or PTFE.
FR7830127A 1978-10-16 1978-10-16 Annular seals comprising steel or PTFE hoops with oblique interference - for sealing large bore, high pressure pneumatic, hydraulic or mechanical systems, esp. butterfly valves Withdrawn FR2439340A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7830127A FR2439340A1 (en) 1978-10-16 1978-10-16 Annular seals comprising steel or PTFE hoops with oblique interference - for sealing large bore, high pressure pneumatic, hydraulic or mechanical systems, esp. butterfly valves

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7830127A FR2439340A1 (en) 1978-10-16 1978-10-16 Annular seals comprising steel or PTFE hoops with oblique interference - for sealing large bore, high pressure pneumatic, hydraulic or mechanical systems, esp. butterfly valves

Publications (1)

Publication Number Publication Date
FR2439340A1 true FR2439340A1 (en) 1980-05-16

Family

ID=9214060

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7830127A Withdrawn FR2439340A1 (en) 1978-10-16 1978-10-16 Annular seals comprising steel or PTFE hoops with oblique interference - for sealing large bore, high pressure pneumatic, hydraulic or mechanical systems, esp. butterfly valves

Country Status (1)

Country Link
FR (1) FR2439340A1 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE180988C (en) *
US2847236A (en) * 1954-11-05 1958-08-12 Flexible Searl Company Wear compensating shaft seal
GB1123165A (en) * 1966-03-02 1968-08-14 Cross Mfg Co 1938 Ltd Improvements in and relating to piston-and-ring assemblies
US3401916A (en) * 1966-10-17 1968-09-17 Balon Corp Dual ring valve seat

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE180988C (en) *
US2847236A (en) * 1954-11-05 1958-08-12 Flexible Searl Company Wear compensating shaft seal
GB1123165A (en) * 1966-03-02 1968-08-14 Cross Mfg Co 1938 Ltd Improvements in and relating to piston-and-ring assemblies
US3401916A (en) * 1966-10-17 1968-09-17 Balon Corp Dual ring valve seat

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
EXBK/75 *

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Legal Events

Date Code Title Description
ST Notification of lapse