FR2257831A1 - Sealing assembly for a ball valve - has seals cut from sheet of carbon fibres and expanded graphite - Google Patents

Sealing assembly for a ball valve - has seals cut from sheet of carbon fibres and expanded graphite

Info

Publication number
FR2257831A1
FR2257831A1 FR7339347A FR7339347A FR2257831A1 FR 2257831 A1 FR2257831 A1 FR 2257831A1 FR 7339347 A FR7339347 A FR 7339347A FR 7339347 A FR7339347 A FR 7339347A FR 2257831 A1 FR2257831 A1 FR 2257831A1
Authority
FR
France
Prior art keywords
ball valve
sheet
expanded graphite
sealing assembly
carbon fibres
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
FR7339347A
Other languages
French (fr)
Other versions
FR2257831B1 (en
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.)
Emerson Automation Solutions Final Control France SARL
Original Assignee
Gachot SCA
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 Gachot SCA filed Critical Gachot SCA
Priority to FR7339347A priority Critical patent/FR2257831A1/en
Publication of FR2257831A1 publication Critical patent/FR2257831A1/en
Application granted granted Critical
Publication of FR2257831B1 publication Critical patent/FR2257831B1/fr
Granted 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
    • 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
    • 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
    • F16J15/02—Sealings between relatively-stationary surfaces
    • F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
    • F16J15/10—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing
    • F16J15/104—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing characterised by structure
    • 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
    • F16K41/00—Spindle sealings
    • F16K41/02—Spindle sealings with stuffing-box ; Sealing rings
    • F16K41/04—Spindle sealings with stuffing-box ; Sealing rings with at least one ring of rubber or like material between spindle and housing
    • F16K41/043—Spindle sealings with stuffing-box ; Sealing rings with at least one ring of rubber or like material between spindle and housing for spindles which only rotate, i.e. non-rising spindles
    • F16K41/046—Spindle sealings with stuffing-box ; Sealing rings with at least one ring of rubber or like material between spindle and housing for spindles which only rotate, i.e. non-rising spindles for rotating valves

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Taps Or Cocks (AREA)

Abstract

The sealing material is suitable for operating temperatures of the order of 600 to 700 deg.C. In a ball valve the sealing material is packed between the metal rings around the spindle and between the ball valve flanges and the pipe. The material may be packed tightly and the joints made tighter by pulling on the bolts or the gland screw. The material is a carbon fibre mixed with graphite and is compacted along the plane giving the greater strength to the material. The compaction is typically enough to reduce the thickness of the sheets of sealing material by about 20%.
FR7339347A 1973-11-06 1973-11-06 Sealing assembly for a ball valve - has seals cut from sheet of carbon fibres and expanded graphite Granted FR2257831A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7339347A FR2257831A1 (en) 1973-11-06 1973-11-06 Sealing assembly for a ball valve - has seals cut from sheet of carbon fibres and expanded graphite

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7339347A FR2257831A1 (en) 1973-11-06 1973-11-06 Sealing assembly for a ball valve - has seals cut from sheet of carbon fibres and expanded graphite

Publications (2)

Publication Number Publication Date
FR2257831A1 true FR2257831A1 (en) 1975-08-08
FR2257831B1 FR2257831B1 (en) 1978-11-17

Family

ID=9127332

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7339347A Granted FR2257831A1 (en) 1973-11-06 1973-11-06 Sealing assembly for a ball valve - has seals cut from sheet of carbon fibres and expanded graphite

Country Status (1)

Country Link
FR (1) FR2257831A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0027765A1 (en) * 1979-10-23 1981-04-29 Jean Gachot Ball-valve and processes for its manufacture
WO1987007695A1 (en) * 1986-06-16 1987-12-17 Le Carbone Lorraine Thermal contact with high transfer coefficient and applications to the cooling of a structure subjected to an intense thermal flux
FR2600073A1 (en) * 1986-06-16 1987-12-18 Lorraine Carbone Thermal contact with high transfer coefficient and applications

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0027765A1 (en) * 1979-10-23 1981-04-29 Jean Gachot Ball-valve and processes for its manufacture
FR2468048A1 (en) * 1979-10-23 1981-04-30 Gachot Jean TAP OR THE LIKE AND METHODS OF MANUFACTURING THEREFOR
WO1987007695A1 (en) * 1986-06-16 1987-12-17 Le Carbone Lorraine Thermal contact with high transfer coefficient and applications to the cooling of a structure subjected to an intense thermal flux
FR2600073A1 (en) * 1986-06-16 1987-12-18 Lorraine Carbone Thermal contact with high transfer coefficient and applications
EP0250345A1 (en) * 1986-06-16 1987-12-23 Le Carbone Lorraine Thermal contact with a high transfer modulus, and uses in cooling a structure exposed to an intense thermal flux
US4852645A (en) * 1986-06-16 1989-08-01 Le Carbone Lorraine Thermal transfer layer

Also Published As

Publication number Publication date
FR2257831B1 (en) 1978-11-17

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Legal Events

Date Code Title Description
ST Notification of lapse