ES456631A1 - Gate valve with secondary spindle seal - has bellows and Belleville springs acting between collar and boss to seat conical head - Google Patents
Gate valve with secondary spindle seal - has bellows and Belleville springs acting between collar and boss to seat conical headInfo
- Publication number
- ES456631A1 ES456631A1 ES456631A ES456631A ES456631A1 ES 456631 A1 ES456631 A1 ES 456631A1 ES 456631 A ES456631 A ES 456631A ES 456631 A ES456631 A ES 456631A ES 456631 A1 ES456631 A1 ES 456631A1
- Authority
- ES
- Spain
- Prior art keywords
- collar
- bellows
- boss
- valve
- gate valve
- 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.)
- Expired
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
- F16K41/00—Spindle sealings
- F16K41/14—Spindle sealings with conical flange on the spindle which co-operates with a conical surface in the housing
-
- 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
-
- 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
Abstract
The disc (2) of a gate valve is provided with a collar (19) at its junction with the valve spindle (4). The valve spindle (4) is provided with a gland (11) in the housing (10) projecting from the valve body (3). When the valve is fully open the conical boss (18) fits in the matching recess (17) and forms an additional spindle seal. The conical boss (18) is attached by the flexible bellows (24) to the collar (19). A stack of belleville washers (21) inside the bellows (24) exerts a force on the conical boss (18) to ensure a perfect spindle seal when the valve is in the fully open position.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2609635A DE2609635C3 (en) | 1976-03-09 | 1976-03-09 | Back sealing of a valve for hot media |
Publications (1)
Publication Number | Publication Date |
---|---|
ES456631A1 true ES456631A1 (en) | 1978-01-16 |
Family
ID=5971853
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES456631A Expired ES456631A1 (en) | 1976-03-09 | 1977-03-08 | Gate valve with secondary spindle seal - has bellows and Belleville springs acting between collar and boss to seat conical head |
Country Status (10)
Country | Link |
---|---|
AT (1) | AT366161B (en) |
BE (1) | BE852277A (en) |
BR (1) | BR7701406A (en) |
DE (1) | DE2609635C3 (en) |
ES (1) | ES456631A1 (en) |
FR (1) | FR2343953A1 (en) |
IT (1) | IT1083853B (en) |
NL (1) | NL7702284A (en) |
SE (1) | SE7702575L (en) |
ZA (1) | ZA771331B (en) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3246058A1 (en) * | 1982-12-13 | 1984-06-14 | Deutsche Babcock Werke AG, 4200 Oberhausen | VALVE WITH REAR SEAL |
GB2240610B (en) * | 1990-02-05 | 1993-12-08 | Devilbiss Co | Needle packing assembly |
US5127629A (en) * | 1991-05-24 | 1992-07-07 | Fmc Corporation | Valve stem flex lip backseat |
US5435520A (en) * | 1994-09-07 | 1995-07-25 | Cooper Industries, Inc. | Backseat assembly for an expanding gate valve |
GB0018222D0 (en) * | 2000-07-26 | 2000-09-13 | Market Linc Holdings Ltd | Valves |
WO2005008041A1 (en) * | 2003-07-11 | 2005-01-27 | Malcolm George Leavesley | Turbocharger apparatus having an exhaust gas sealing system for preventing gas leakage from the turbocharger apparatus |
KR20160074552A (en) * | 2013-10-23 | 2016-06-28 | 보르그워너 인코퍼레이티드 | Actuation pivot shaft face seal with u seal |
CN106813010A (en) * | 2017-02-28 | 2017-06-09 | 络科实业集团有限公司 | A kind of new back seal butterfly valve |
CN110566684A (en) * | 2018-06-05 | 2019-12-13 | 中国石油天然气股份有限公司 | Gate valve |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE160699C (en) * | ||||
DE1251120B (en) * | ||||
AT112878B (en) * | 1927-04-25 | 1929-04-10 | Der Ludw V Roll Schen Eisenwer | Rotary valve for pipelines. |
US2573522A (en) * | 1947-09-08 | 1951-10-30 | Gen Motors Corp | Valve with vibration damper |
DE1032992B (en) * | 1957-03-05 | 1958-06-26 | Stahl Armaturen G M B H | Shut-off valve with back seal |
US3253612A (en) * | 1963-07-30 | 1966-05-31 | Sarco Company Inc | Valve having an adjustable stop |
DD72951A1 (en) * | 1969-01-24 | 1970-05-05 | Spindle backsight for slides | |
US3776275A (en) * | 1972-04-10 | 1973-12-04 | Trw Inc | Reactor bypass system |
-
1976
- 1976-03-09 DE DE2609635A patent/DE2609635C3/en not_active Expired
-
1977
- 1977-02-23 AT AT0119077A patent/AT366161B/en not_active IP Right Cessation
- 1977-03-03 NL NL7702284A patent/NL7702284A/en not_active Application Discontinuation
- 1977-03-07 ZA ZA00771331A patent/ZA771331B/en unknown
- 1977-03-08 FR FR7706816A patent/FR2343953A1/en active Granted
- 1977-03-08 SE SE7702575A patent/SE7702575L/en unknown
- 1977-03-08 ES ES456631A patent/ES456631A1/en not_active Expired
- 1977-03-08 IT IT21047/77A patent/IT1083853B/en active
- 1977-03-09 BR BR7701406A patent/BR7701406A/en unknown
- 1977-03-09 BE BE175639A patent/BE852277A/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
BE852277A (en) | 1977-09-09 |
BR7701406A (en) | 1977-11-01 |
IT1083853B (en) | 1985-05-25 |
DE2609635C3 (en) | 1982-01-28 |
DE2609635A1 (en) | 1977-09-15 |
AT366161B (en) | 1982-03-25 |
SE7702575L (en) | 1977-09-10 |
FR2343953A1 (en) | 1977-10-07 |
FR2343953B3 (en) | 1980-02-22 |
NL7702284A (en) | 1977-09-13 |
DE2609635B2 (en) | 1980-10-02 |
ZA771331B (en) | 1978-02-22 |
ATA119077A (en) | 1981-07-15 |
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