SE438541B - PROCEDURE AND DEVICE FOR SEALING A SEAT VALVE - Google Patents
PROCEDURE AND DEVICE FOR SEALING A SEAT VALVEInfo
- Publication number
- SE438541B SE438541B SE7909682A SE7909682A SE438541B SE 438541 B SE438541 B SE 438541B SE 7909682 A SE7909682 A SE 7909682A SE 7909682 A SE7909682 A SE 7909682A SE 438541 B SE438541 B SE 438541B
- Authority
- SE
- Sweden
- Prior art keywords
- closing member
- valve seat
- sealing
- valve
- closing
- Prior art date
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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
-
- 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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/36—Valve members
- F16K1/38—Valve members of conical shape
- F16K1/385—Valve members of conical shape contacting in the closed position, over a substantial axial length, a seat surface having the same inclination
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lift Valve (AREA)
Description
7909682-2 Ventilkroppens tätande del och ventilsätet kan göras av olika kvaliteter av härdat stål, varvid en hårdare stålsort väljs för ventilkroppens tätningsdel. Man kan även göra tätningsytorna av olika slag av stellit, varvid hårdare stellit väljs för ventilkroppens tätningsyta än för ventilsätet. För att sådana fasta partiklar som eventuellt förekommer i det medium som strömmar genom ventilen. inte skall tränga in i ventilens tätningsytor, görs ventilsätet lämpligen av ett material vars hårdhet är större än hårdheten hos Wde partiklar som kan tänkas förekomma. 7909682-2 The sealing part of the valve body and the valve seat can be made of different grades of hardened steel, whereby a harder steel grade is chosen for the sealing part of the valve body. It is also possible to make the sealing surfaces of different types of stellite, whereby harder stellite is chosen for the sealing surface of the valve body than for the valve seat. In order to such solid particles as may be present in the medium flowing through the valve. should not penetrate into the sealing surfaces of the valve, the valve seat is suitably made of a material whose hardness is greater than the hardness of Wde particles which may occur.
Hârdheten hos ventilkroppens tätningsyta bör härvid lämpligen överstiga ventilsätets hårdhet med åtminstone 10%.The hardness of the sealing surface of the valve body should suitably exceed the hardness of the valve seat by at least 10%.
Uppfinningen avser även en tätningsanordning vid sätesven- tiler. av det slag och med de kännetecken som anges i patentkravet 6. I en sådan ventil är det lämpligt att utforma ventilkroppens tätande del såsom ett separat ringformat element, som uppbärs av ventilkroppen. Ventil- kroppens tätningsyta kan också lämpligen vara belägen i en sfärisk del av ventilkroppen.The invention also relates to a sealing device for seat valves. of the kind and with the features stated in claim 6. In such a valve it is suitable to design the sealing part of the valve body as a separate annular element, which is supported by the valve body. The sealing surface of the valve body can also suitably be located in a spherical part of the valve body.
Uppfinningen skall i det följande förklaras närmare med hänvisning till bifogade ritning, vars enda figur visar ett axiellt snitt genom en ventil enligt uppfinningen.The invention will be explained in more detail below with reference to the accompanying drawing, the only figure of which shows an axial section through a valve according to the invention.
På ritningen betecknar 1 en ventils rörliga ventilkropp, vilken uppbärs av en spindel 2, som styrs av en genomföring i ventilhusets lock 3. Ventilkroppen 1 är försedd med ett ringformat element 5, som upptar ventilkroppens tätande del.In the drawing, 1 denotes a movable valve body of a valve, which is supported by a spindle 2, which is guided by a bushing in the valve housing cover 3. The valve body 1 is provided with an annular element 5, which receives the sealing part of the valve body.
I ventilhusets stomme N finns ett ventilsäte 6. Enligt uppfinningen är elementet 5 gjort av hårdare material än ventilsätet 6. När ventilen stänger, kommer ventilsätet 6 att undergå en viss formförändring på grund av inverkan från ventilkroppens tätningsdel 5, som är hårdare än ventilsätet 6. Ventilens normala stängningskraft är tillräckligt stor för att åstadkomma en bestående, dvs. plastisk form- förändring i ventilsätet 6. Därigenom kommer ventilen att 7909682-2 bibehålla sin täthet under lång tid.In the frame housing body N there is a valve seat 6. According to the invention the element 5 is made of harder material than the valve seat 6. When the valve closes, the valve seat 6 will undergo a certain deformation due to the action of the valve body sealing part 5, which is harder than the valve seat 6. The normal closing force of the valve is large enough to achieve a lasting, ie. plastic deformation in the valve seat 6. As a result, the valve will maintain its tightness for a long time.
Uppfinningen kan med fördel tillämpas förutom på den på ritningen visade ventiltypen med konisk ventilkropp även på ventiler med sfärisk ventilkropp. Materialet i ventilens tätníngsytor väljs med beaktande av ventilens användnings- område. Ventilsätets material bör inte besitta alltför hög elasticitet, utan bör vara plastiskt formbart.The invention can be advantageously applied not only to the valve type with conical valve body shown in the drawing but also to valves with spherical valve body. The material of the valve sealing surfaces is selected taking into account the area of use of the valve. The material of the valve seat should not have too high an elasticity, but should be plastically malleable.
Uppfinningen begränsar sig inte till den visade utförings- formen, utan ett flertal varianter och modifikationer är tänkbara inom ramen för nedanstående patentkrav. ef.. - --~"-. »V ~ v-i-w-n- ~ _ - ,....., .__, i _ , _-. L.,_._. .......... Lç.. __ ___>___q_______ _v___ VThe invention is not limited to the embodiment shown, but a number of variants and modifications are conceivable within the scope of the following claims. ef .. - - ~ "-.» V ~ viwn- ~ _ -, ....., .__, i _, _-. L., _._. ......... . Lç .. __ ___> ___ q_______ _v___ V
Claims (8)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI783611A FI68889C (en) | 1978-11-27 | 1978-11-27 | SAETESVENTIL |
Publications (2)
Publication Number | Publication Date |
---|---|
SE7909682L SE7909682L (en) | 1980-05-28 |
SE438541B true SE438541B (en) | 1985-04-22 |
Family
ID=8512180
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE7909682A SE438541B (en) | 1978-11-27 | 1979-11-22 | PROCEDURE AND DEVICE FOR SEALING A SEAT VALVE |
Country Status (6)
Country | Link |
---|---|
JP (1) | JPS5576259A (en) |
DE (1) | DE2947588A1 (en) |
FI (1) | FI68889C (en) |
FR (1) | FR2442387B1 (en) |
GB (1) | GB2038451B (en) |
SE (1) | SE438541B (en) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FI68890C (en) * | 1981-02-06 | 1985-11-11 | Waertsilae Oy Ab | TAETNING AV SAETESVENTIL |
CH670871A5 (en) * | 1984-10-31 | 1989-07-14 | Rosenmund Ag | |
US4671322A (en) * | 1985-08-19 | 1987-06-09 | Halliburton Company | Sequential formation tester having three way normally closed valve |
US5100100A (en) * | 1990-09-12 | 1992-03-31 | Mks Instruments, Inc. | Fluid control and shut off valve |
DE19530224B4 (en) * | 1995-08-17 | 2006-01-05 | Friatec Ag | Sealing arrangement for a butterfly valve or a butterfly valve |
EP1128109A1 (en) * | 2000-02-22 | 2001-08-29 | Siemens Building Technologies AG | Valve for control device |
JP5727347B2 (en) * | 2011-10-18 | 2015-06-03 | 太平洋工業株式会社 | Flow control valve |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE891953C (en) * | 1953-08-20 | Siemens-Schuckertwerke Aktiengesellschaft, Berlin Und Erlangen | Arrangement for sealing mutually movable parts made of ceramic materials, especially in the case of valves. Eat. 10 | |
US1979910A (en) * | 1930-10-20 | 1934-11-06 | Super Diesel Tractor Corp | Valve |
GB370451A (en) * | 1931-01-08 | 1932-04-08 | Johann Zagorski | Improvements in or relating to fluid-tight valves especially for high pressures and temperatures |
FR1011946A (en) * | 1950-05-06 | 1952-07-01 | Spray jet fire extinguisher air pump | |
FR1249395A (en) * | 1959-11-14 | 1960-12-30 | Centre Nat Rech Scient | Very high vacuum valve |
DE1186712B (en) * | 1960-09-15 | 1965-02-04 | Akad Wissenschaften Ddr | Valve |
DE1190756B (en) * | 1961-12-28 | 1965-04-08 | Akad Wissenschaften Ddr | Valve |
US3450385A (en) * | 1966-12-12 | 1969-06-17 | Rockwell Mfg Co | Grooved valve disc |
US3767164A (en) * | 1971-07-01 | 1973-10-23 | Milwaukee Valve Co Inc | Throttle-shutoff valve |
-
1978
- 1978-11-27 FI FI783611A patent/FI68889C/en not_active IP Right Cessation
-
1979
- 1979-11-22 SE SE7909682A patent/SE438541B/en not_active IP Right Cessation
- 1979-11-26 DE DE19792947588 patent/DE2947588A1/en not_active Ceased
- 1979-11-26 FR FR7929049A patent/FR2442387B1/en not_active Expired
- 1979-11-26 GB GB7940784A patent/GB2038451B/en not_active Expired
- 1979-11-27 JP JP15347979A patent/JPS5576259A/en active Pending
Also Published As
Publication number | Publication date |
---|---|
GB2038451B (en) | 1983-05-05 |
DE2947588A1 (en) | 1980-10-16 |
FI783611A (en) | 1980-05-28 |
FR2442387B1 (en) | 1985-11-22 |
SE7909682L (en) | 1980-05-28 |
JPS5576259A (en) | 1980-06-09 |
GB2038451A (en) | 1980-07-23 |
FI68889C (en) | 1985-11-11 |
FI68889B (en) | 1985-07-31 |
FR2442387A1 (en) | 1980-06-20 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
NUG | Patent has lapsed |
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