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 graphiteInfo
- 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
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%.
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)
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 |
-
1973
- 1973-11-06 FR FR7339347A patent/FR2257831A1/en active Granted
Cited By (6)
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 |