BE519448A - - Google Patents
Info
- Publication number
- BE519448A BE519448A BE519448DA BE519448A BE 519448 A BE519448 A BE 519448A BE 519448D A BE519448D A BE 519448DA BE 519448 A BE519448 A BE 519448A
- Authority
- BE
- Belgium
- Prior art keywords
- segment
- key
- ball
- sealing
- seat
- Prior art date
Links
- 238000007789 sealing Methods 0.000 claims description 59
- 230000002093 peripheral effect Effects 0.000 claims description 8
- 239000012530 fluid Substances 0.000 claims description 7
- 239000007788 liquid Substances 0.000 claims description 6
- 230000006835 compression Effects 0.000 claims description 5
- 238000007906 compression Methods 0.000 claims description 5
- 238000006073 displacement reaction Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 claims description 2
- 239000000463 material Substances 0.000 description 18
- -1 polytetrafluoroethylene Polymers 0.000 description 7
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 7
- 239000004810 polytetrafluoroethylene Substances 0.000 description 7
- 238000009434 installation Methods 0.000 description 5
- 239000002184 metal Substances 0.000 description 3
- 239000013043 chemical agent Substances 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 210000002445 nipple Anatomy 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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
- F16K5/0663—Packings
- F16K5/0673—Composite packings
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Taps Or Cocks (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE519448A true BE519448A (en:Method) |
Family
ID=155670
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE519448D BE519448A (en:Method) |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE519448A (en:Method) |
-
0
- BE BE519448D patent/BE519448A/fr unknown
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