IT8912407A0 - Valvola a sfera con anello di ar resti bidirezionale - Google Patents
Valvola a sfera con anello di ar resti bidirezionaleInfo
- Publication number
- IT8912407A0 IT8912407A0 IT8912407A IT1240789A IT8912407A0 IT 8912407 A0 IT8912407 A0 IT 8912407A0 IT 8912407 A IT8912407 A IT 8912407A IT 1240789 A IT1240789 A IT 1240789A IT 8912407 A0 IT8912407 A0 IT 8912407A0
- Authority
- IT
- Italy
- Prior art keywords
- bidirectional
- ring
- ball valve
- ball
- valve
- Prior art date
Links
- 230000002457 bidirectional effect Effects 0.000 title 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
- F16K5/08—Details
- F16K5/14—Special arrangements for separating the sealing faces or for pressing them together
- F16K5/20—Special arrangements for separating the sealing faces or for pressing them together for plugs with spherical surfaces
- F16K5/201—Special arrangements for separating the sealing faces or for pressing them together for plugs with spherical surfaces with the housing or parts of the housing mechanically pressing the seal against the plug
-
- 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
- F16K5/0678—Composite packings in which only one of the components of the composite packing is contacting the plug
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Taps Or Cocks (AREA)
- Valve Housings (AREA)
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT8912407A IT1232458B (it) | 1989-01-13 | 1989-01-13 | Valvola a sfera con anello di arresto bidirezionale |
EP90830007A EP0378520B1 (en) | 1989-01-13 | 1990-01-05 | Ball valve with bi-directional lock ring |
DE69021401T DE69021401T2 (de) | 1989-01-13 | 1990-01-05 | Kugelventil mit in zwei Richtungen wirkendem Feststellring. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT8912407A IT1232458B (it) | 1989-01-13 | 1989-01-13 | Valvola a sfera con anello di arresto bidirezionale |
Publications (2)
Publication Number | Publication Date |
---|---|
IT8912407A0 true IT8912407A0 (it) | 1989-01-13 |
IT1232458B IT1232458B (it) | 1992-02-17 |
Family
ID=11139805
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT8912407A IT1232458B (it) | 1989-01-13 | 1989-01-13 | Valvola a sfera con anello di arresto bidirezionale |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0378520B1 (it) |
DE (1) | DE69021401T2 (it) |
IT (1) | IT1232458B (it) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL9000772A (nl) * | 1990-04-02 | 1991-11-01 | Nefit Nv | Kogelkraan. |
CN103711935B (zh) * | 2012-10-05 | 2017-03-29 | 上海神通企业发展有限公司 | 一种轨道球阀阀座结构 |
US11131404B2 (en) | 2015-11-16 | 2021-09-28 | Hayward Industries, Inc. | Ball valve |
IT201900024129A1 (it) | 2019-12-16 | 2021-06-16 | Petrolvalves S P A | Valvola con otturatore mobile |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3894718A (en) * | 1973-10-19 | 1975-07-15 | Whitey Research Tool Co | Ball valve |
EP0051993A1 (en) * | 1980-11-10 | 1982-05-19 | Nibco Inc. | Blocked ball valve |
DE3321819C1 (de) * | 1983-06-16 | 1984-07-26 | Werner Dipl.-Ing. 3167 Burgdorf Hartmann | Hahn mit kugelfoermigem Kueken |
IT8315261V0 (it) * | 1983-10-04 | 1983-10-04 | Fip Formatura Inienzione Poli | Valvola a sfera con anello di fermo |
CH666103A5 (de) * | 1985-05-13 | 1988-06-30 | Fischer Ag Georg | Absperrhahn mit kugelfoermigem kueken. |
US4684105A (en) * | 1985-11-21 | 1987-08-04 | Haas Ii Carroll J | Ball valve |
-
1989
- 1989-01-13 IT IT8912407A patent/IT1232458B/it active
-
1990
- 1990-01-05 EP EP90830007A patent/EP0378520B1/en not_active Expired - Lifetime
- 1990-01-05 DE DE69021401T patent/DE69021401T2/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
IT1232458B (it) | 1992-02-17 |
EP0378520A1 (en) | 1990-07-18 |
DE69021401D1 (de) | 1995-09-14 |
DE69021401T2 (de) | 1996-02-01 |
EP0378520B1 (en) | 1995-08-09 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
TA | Fee payment date (situation as of event date), data collected since 19931001 |
Effective date: 19990129 |