JPH0439468U - - Google Patents
Info
- Publication number
- JPH0439468U JPH0439468U JP8141990U JP8141990U JPH0439468U JP H0439468 U JPH0439468 U JP H0439468U JP 8141990 U JP8141990 U JP 8141990U JP 8141990 U JP8141990 U JP 8141990U JP H0439468 U JPH0439468 U JP H0439468U
- Authority
- JP
- Japan
- Prior art keywords
- valve body
- sliding
- spring
- seat
- rings
- 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.)
- Granted
Links
- 238000011144 upstream manufacturing Methods 0.000 claims 2
- 238000013459 approach Methods 0.000 claims 1
- 238000007789 sealing Methods 0.000 claims 1
Landscapes
- Sliding Valves (AREA)
Description
第１図は本考案の一実施例を示す縦断正面図、
第２図は要部を拡大して示す半截断面図、第３図
は従来例の半截断面図である。
１……弁箱、２……摺動弁体、５Ａ，５Ｂ……
弁箱シート、６……シートリング、７……シール
ボツクス、８……第１スプリング、９……シール
部材、１０……バツクアツプリング、１１……第
２スプリング。
FIG. 1 is a longitudinal sectional front view showing an embodiment of the present invention;
FIG. 2 is a half-cut sectional view showing an enlarged main part, and FIG. 3 is a half-cut sectional view of a conventional example. 1...Valve box, 2...Sliding valve body, 5A, 5B...
Valve box seat, 6... Seat ring, 7... Seal box, 8... First spring, 9... Seal member, 10... Backup spring, 11... Second spring.
Claims (1)
１対のシートリングによつて抜け止めされた状態
で取付けられている仕切弁のシール構造であつて
、前記１対のシートリングと前記弁箱シートとを
それぞれ前記摺動弁体に対する接離方向に移動自
在にシールボツクスに取付け、前記シートリング
が前記摺動弁体と常時接触する状態で摺動弁体に
近接される方向に付勢する第１スプリングを設け
、上流側弁箱シートがバツクアツプリングを介し
て摺動弁体に近接する方向に付勢される第２スプ
リングを設けるとともに、前記弁箱シートの背面
とバツクアツプリングの間に、これら両者から半
径方向の内外両側に延出したシール部材を介設し
たことを特徴とする仕切弁のシール構造。 A sealing structure for a gate valve in which a pair of valve body seats that are in sliding contact with both surfaces of a sliding valve body are installed in a state where they are prevented from coming off by a pair of seat rings. The valve box seats are each attached to a seal box so as to be movable in a direction toward and away from the sliding valve body, and the seat ring is moved in a direction close to the sliding valve body while being in constant contact with the sliding valve body. A first spring is provided to bias the upstream valve box seat, and a second spring is provided to bias the upstream valve box seat in a direction in which it approaches the sliding valve body through a back-up spring. A seal structure for a gate valve, characterized in that a seal member is interposed between the rings and extends outward and outward in the radial direction from both rings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990081419U JPH085424Y2 (en) | 1990-07-30 | 1990-07-30 | Gate valve seal structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990081419U JPH085424Y2 (en) | 1990-07-30 | 1990-07-30 | Gate valve seal structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0439468U true JPH0439468U (en) | 1992-04-03 |
| JPH085424Y2 JPH085424Y2 (en) | 1996-02-14 |
Family
ID=31627349
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1990081419U Expired - Lifetime JPH085424Y2 (en) | 1990-07-30 | 1990-07-30 | Gate valve seal structure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH085424Y2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0256977U (en) * | 1988-10-19 | 1990-04-24 |
-
1990
- 1990-07-30 JP JP1990081419U patent/JPH085424Y2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0256977U (en) * | 1988-10-19 | 1990-04-24 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH085424Y2 (en) | 1996-02-14 |