SE445249B - PROCEDURE AND DEVICE FOR SEAT VALVE SEALS - Google Patents
PROCEDURE AND DEVICE FOR SEAT VALVE SEALSInfo
- Publication number
- SE445249B SE445249B SE8200654A SE8200654A SE445249B SE 445249 B SE445249 B SE 445249B SE 8200654 A SE8200654 A SE 8200654A SE 8200654 A SE8200654 A SE 8200654A SE 445249 B SE445249 B SE 445249B
- Authority
- SE
- Sweden
- Prior art keywords
- valve
- valve body
- valve seat
- sealing surface
- sealing
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lift Valve (AREA)
Description
8200654-5 - patentkravet 1. I en på detta sätt uppbyggd ventil kommer tätningsytorna att bibehålla sin tätande form oberoende av det slitage de utsätts för, närmast till följd av den plastíska formbarheten hos ventilkroppen. Trots att ventil- kroppens position i förhållande till ventilsätet är något olika vid varje stängning av ventilen kommer den plastiska deformeringen av ventilkroppen mot det hårdare ventilsätet att vid varje stängning åstadkomma pålitlig tätning. Man kan alltså säga att tätningsytorna formas på nytt vid varje stängning av ventilen. Ventilens täthet förbättras ytter- ligare därigenom, att ventilsätet, dvs. den del som bibehåller sin form, är fast anordnat i ventilhuset. 8200654-5 - claim 1. In a valve constructed in this way, the sealing surfaces will retain their sealing shape regardless of the wear they are subjected to, mainly due to the plastic formability of the valve body. Although the position of the valve body in relation to the valve seat is slightly different with each closing of the valve, the plastic deformation of the valve body against the harder valve seat will provide a reliable seal at each closing. It can thus be said that the sealing surfaces are reshaped with each closing of the valve. The tightness of the valve is further improved by the fact that the valve seat, ie. the part which retains its shape is fixedly arranged in the valve housing.
Den del av ventilkroppen som kommer att ligga an mot ventilsätet förstoras på grund av den deformation av ventil- kroppen som den normala stängningskraften åstadkommer.The part of the valve body that will abut against the valve seat is enlarged due to the deformation of the valve body caused by the normal closing force.
Härigenom kommer ventilkroppen att formas mot ventilsätets yta. Detta medför att risken för läckage minskar. I en föredragen' utföringsform av uppfinningen är ventilsätet så utformat, att dess konturlinje i ett axiellt snitt har betydligt större krökningsradíe än motsvarande konturlinje hos ventilkroppen. Ventilsätets kontur är företrädesvis rätlinjig, dvs. ventilsätet år koniskt, medan ventilkrop- pens konturlinje utgörs av en cirkelbåge eller någon liknande kontinuerligt krökt kurva. ' Ventilkroppens tätningsyta kan göras av stellit, en i venti- ler ofta använd metallegering, som vanligen innerhåller krom och kobolt. Både ventilkroppens tätningsyta och ventilsätet _kan bestå av olika hård stellit, varvid den mjukare stelliten används i ventilkroppen. Det har visat sig att ökningen i kontaktytans utsträckning vid användning av ventilen är mycket liten, vilket bidrar till att tätningsytorna. länge bibehåller en för åstadkommande av god tätning gynnsam form.As a result, the valve body will be formed against the surface of the valve seat. This reduces the risk of leakage. In a preferred embodiment of the invention, the valve seat is designed so that its contour line in an axial section has a considerably larger radius of curvature than the corresponding contour line of the valve body. The contour of the valve seat is preferably rectilinear, i.e. the valve seat is conical, while the contour line of the valve body consists of an arc of a circle or some similar continuously curved curve. The sealing surface of the valve body can be made of stellite, a metal alloy often used in valves, which usually contains chromium and cobalt. Both the sealing surface of the valve body and the valve seat _can consist of different hard stellite, whereby the softer stellite is used in the valve body. It has been found that the increase in the extent of the contact surface when using the valve is very small, which contributes to the sealing surfaces. long maintains a shape favorable for achieving good sealing.
I speciella fall, exempelvis i ventiler avsedda för klor- haltiga media, kan ventilkroppens tätningsyta med fördel göras av polytetrafluoretylen eller av en plast med 8200654-5 motsvarande egenskaper, medan ventilsätet görs av syrafast stål.In special cases, for example in valves intended for chlorine-containing media, the sealing surface of the valve body can advantageously be made of polytetrafluoroethylene or of a plastic with corresponding properties, while the valve seat is made of acid-resistant steel.
Uppfinningen avser också en sätesventil som huvudsakligen utformas på det ovan beskrivna sättet.The invention also relates to a seat valve which is mainly designed in the manner described above.
Uppfinningen skall i den följande beskrivas närmare med hänvisning till bifogade ritning, vars enda figur visar ett axiellt snitt genom en utföringsform av en sätesventil enligt uppfinningen.The invention will be described in more detail in the following with reference to the accompanying drawing, the only figure of which shows an axial section through an embodiment of a seat valve according to the invention.
Pâ ritningen betecknar 1 en ventilkropp ansluten till en ventilspindel 2, som sträcker sig genom en öppning 8 i ett på ventilhuset 4 anordnat lock 3. Ventilkroppen 1 omfattar ett element 5, vars yttre yta, som utgör ventilkroppens tätningsyta, har formen av ett sfäriskt segment. Ett stationärt koniskt ventilsäte 6 är anordnat i ventilhuset H. Enligt uppfinningen består elementet 5 av mjukare material _ än ventilsätet 6, varigenom vid stängning av ventilen elementet 5 "kommer att något deformeras mot det hårdare ventilsätet 6. Detta håller ventilen tät, oberoende av det slitage som förekommer på tätningsytorna. Elementet _§ _kan vara fäst till ventilkroppen 1 genom svetsning, lödning - eller på annat lämpligt sätt. Tätningen av ventilspindelns 2 genomföring i locket 3 visas inte på ritningen, eftersom denna tätning kan vara av konventionellt slag och saknar direkt med samband med uppfinningen. ventilen omfattar på konventionellt sätt en inloppsöppning 9 och en utloppsöpp- ning 10 liksom även en tätning 7 mellan ventilhuset H och det löstagbara locket 3.In the drawing, 1 denotes a valve body connected to a valve spindle 2, which extends through an opening 8 in a cover 3 arranged on the valve housing 4. The valve body 1 comprises an element 5, the outer surface of which constitutes the sealing surface of the valve body . A stationary conical valve seat 6 is arranged in the valve housing H. According to the invention, the element 5 consists of softer material - than the valve seat 6, whereby when closing the valve the element 5 "will be slightly deformed against the harder valve seat 6. This keeps the valve tight, wear that occurs on the sealing surfaces.The element _§ _may be attached to the valve body 1 by welding, soldering - or in any other suitable way. In connection with the invention, the valve comprises in a conventional manner an inlet opening 9 and an outlet opening 10 as well as a seal 7 between the valve housing H and the detachable lid 3.
Uppfinningen begränsar sig inte till den visade utförings- formen, utan ett flertal varianter och modifikationer är tänkbara inom ramen för nedanstående patentkrav.The invention is not limited to the embodiment shown, but a number of variants and modifications are conceivable within the scope of the following claims.
Claims (6)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI810355A FI68890C (en) | 1981-02-06 | 1981-02-06 | TAETNING AV SAETESVENTIL |
Publications (2)
Publication Number | Publication Date |
---|---|
SE8200654L SE8200654L (en) | 1982-08-07 |
SE445249B true SE445249B (en) | 1986-06-09 |
Family
ID=8514103
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE8200654A SE445249B (en) | 1981-02-06 | 1982-02-04 | PROCEDURE AND DEVICE FOR SEAT VALVE SEALS |
Country Status (6)
Country | Link |
---|---|
JP (1) | JPS57146966A (en) |
DE (1) | DE3204070A1 (en) |
FI (1) | FI68890C (en) |
FR (1) | FR2499663B1 (en) |
GB (1) | GB2096279B (en) |
SE (1) | SE445249B (en) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6091857U (en) * | 1983-11-30 | 1985-06-22 | シグマ技術工業株式会社 | fluid valve |
DE3527659A1 (en) * | 1984-08-02 | 1986-02-13 | Boart International Ltd., Sandton, Transvaal | HIGH TEMPERATURE GASKET |
FR2578021B1 (en) * | 1985-02-27 | 1988-01-15 | Sealol | SEALING RANGE FOR FLAP VALVE |
GB2236818B (en) * | 1989-09-14 | 1993-07-07 | Gen Motors France | Dual master cylinder |
US4977957A (en) * | 1989-10-02 | 1990-12-18 | Camco International Inc. | Subsurface well safety valve with light weight components |
FR2669938B1 (en) * | 1990-12-04 | 1993-03-19 | Robinetterie Mecanique Ste Gle | BLINDING DEVICE COMPRISING A DEFORMABLE METAL JOINT, AND METHOD FOR THE PRODUCTION THEREOF. |
SE517012C2 (en) * | 1993-05-28 | 2002-04-02 | Dart Engineering Ag | Quick coupling part with pressure reducing means and method for making one |
US5633094A (en) * | 1994-10-28 | 1997-05-27 | Hitachi, Ltd. | Valve having facing layers of co-free Ni-base Alloy |
JPH08334280A (en) * | 1995-04-07 | 1996-12-17 | Fuji Koki Seisakusho:Kk | Expansion valve and refrigerating system |
DE19530224B4 (en) * | 1995-08-17 | 2006-01-05 | Friatec Ag | Sealing arrangement for a butterfly valve or a butterfly valve |
DE19600275A1 (en) * | 1996-01-05 | 1997-07-10 | Danfoss As | Valve |
EP1128109A1 (en) * | 2000-02-22 | 2001-08-29 | Siemens Building Technologies AG | Valve for control device |
US7802588B2 (en) | 2006-10-13 | 2010-09-28 | Parker-Hannifin Corporation | Three-way poppet valve with internal check feature |
JP7337666B2 (en) * | 2019-11-07 | 2023-09-04 | 愛三工業株式会社 | valve device |
Family Cites Families (6)
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 | |
DE1904186A1 (en) * | 1969-01-29 | 1970-08-06 | Brown Boveri Krupp Reaktor | Use of the plastic-to-metal seal combination for fittings |
DE2236063A1 (en) * | 1972-07-22 | 1974-02-07 | Grohe Armaturen Friedrich | LOW-NOISE VALVE |
GB1557725A (en) * | 1976-08-02 | 1979-12-12 | Shell Int Research | Ball valves |
FI68889C (en) * | 1978-11-27 | 1985-11-11 | Waertsilae Oy Ab | SAETESVENTIL |
FI59292C (en) * | 1979-04-18 | 1981-07-10 | Waertsilae Oy Ab | SLIDVENTIL |
-
1981
- 1981-02-06 FI FI810355A patent/FI68890C/en not_active IP Right Cessation
-
1982
- 1982-02-04 SE SE8200654A patent/SE445249B/en not_active IP Right Cessation
- 1982-02-05 FR FR8201854A patent/FR2499663B1/en not_active Expired
- 1982-02-05 JP JP1739182A patent/JPS57146966A/en active Pending
- 1982-02-06 DE DE19823204070 patent/DE3204070A1/en not_active Withdrawn
- 1982-02-08 GB GB8203615A patent/GB2096279B/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
SE8200654L (en) | 1982-08-07 |
FI810355L (en) | 1982-08-07 |
FI68890B (en) | 1985-07-31 |
FR2499663B1 (en) | 1986-05-02 |
DE3204070A1 (en) | 1982-09-09 |
GB2096279A (en) | 1982-10-13 |
GB2096279B (en) | 1985-07-24 |
FR2499663A1 (en) | 1982-08-13 |
FI68890C (en) | 1985-11-11 |
JPS57146966A (en) | 1982-09-10 |
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Legal Events
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NUG | Patent has lapsed |
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