JPH0212570U - - Google Patents
Info
- Publication number
- JPH0212570U JPH0212570U JP9136288U JP9136288U JPH0212570U JP H0212570 U JPH0212570 U JP H0212570U JP 9136288 U JP9136288 U JP 9136288U JP 9136288 U JP9136288 U JP 9136288U JP H0212570 U JPH0212570 U JP H0212570U
- Authority
- JP
- Japan
- Prior art keywords
- seat
- seat ring
- seal structure
- presser
- valve body
- 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
- 230000002093 peripheral effect Effects 0.000 claims 1
- 238000011144 upstream manufacturing Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 5
Landscapes
- Air Transport Of Granular Materials (AREA)
- Taps Or Cocks (AREA)
Description
第１図はこの考案によるシール構造を有するボ
ールバルブの概略図、第２図は上記シール構造の
第一実施例の詳細図、第３図は第二実施例の詳細
図、第４図は第三実施例の詳細図である。
１……バルブ本体、２……球状弁体、３……弁
棒、４……ボンネツト、６……シートリング、７
……シート押え、６ｂ，７ａ……スカート部、８
……皿ばね、８ａ……収容部、１０……エアー導
入孔。
Figure 1 is a schematic diagram of a ball valve having a seal structure according to this invention, Figure 2 is a detailed diagram of the first embodiment of the seal structure, Figure 3 is a detailed diagram of the second embodiment, and Figure 4 is a detailed diagram of the second embodiment. FIG. 3 is a detailed diagram of the third embodiment. 1... Valve body, 2... Spherical valve body, 3... Valve stem, 4... Bonnet, 6... Seat ring, 7
... Sheet presser, 6b, 7a ... Skirt part, 8
. . . Disc spring, 8a . . . Accommodating portion, 10 . . . Air introduction hole.
Claims (1)
のシートリングを弁体に対して押圧するシート押
えと、シートリングとシート押え間に設けた収容
部に装着された弾性部材を備えたボールバルブの
シール構造において、上流側のシート押えが流路
に沿つてシートリング内周面に密着状に伸びるス
カート部を有し、下流側シートリングが出口端に
向つてシート押え内周面に密着状に伸びるスカー
ト部を有することを特徴とするボールバルブのシ
ール構造。 (2) 前記シール構造の収容部に対しエアー導入
口を設けたことを特徴とする請求項１に記載のボ
ールバルブのシール構造。 (3) 球状弁体をシールするシートリングと、こ
のシートリングを弁体に対して押圧するシート押
えと、シートリングとシート押え間に設けた収容
部に装着された弾性部材と、前記収容部に導通す
るエアー導入口を設け、この導入口にエアーを加
圧するようにしたボールバルブのシール構造。[Claims for Utility Model Registration] (1) A seat ring that seals a spherical valve body, a seat presser that presses the seat ring against the valve body, and a seat ring that is attached to a housing provided between the seat ring and the seat presser. In the seal structure of a ball valve equipped with an elastic member, the upstream seat retainer has a skirt portion that extends closely to the inner peripheral surface of the seat ring along the flow path, and the downstream seat ring extends toward the outlet end. A seal structure for a ball valve characterized by having a skirt portion that extends in close contact with the inner circumferential surface of a seat presser. (2) The seal structure for a ball valve according to claim 1, wherein an air inlet is provided in the housing portion of the seal structure. (3) A seat ring that seals the spherical valve body, a seat presser that presses the seat ring against the valve body, an elastic member attached to a housing section provided between the seat ring and the seat presser, and the housing section. A ball valve seal structure that has an air inlet that communicates with the air, and pressurizes air into this inlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988091362U JPH0710135Y2 (en) | 1988-07-08 | 1988-07-08 | Ball valve seal structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988091362U JPH0710135Y2 (en) | 1988-07-08 | 1988-07-08 | Ball valve seal structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0212570U true JPH0212570U (en) | 1990-01-25 |
| JPH0710135Y2 JPH0710135Y2 (en) | 1995-03-08 |
Family
ID=31315845
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988091362U Expired - Lifetime JPH0710135Y2 (en) | 1988-07-08 | 1988-07-08 | Ball valve seal structure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0710135Y2 (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS537841A (en) * | 1976-07-09 | 1978-01-24 | Const Metaritsuku Dou Burobuan | Cock providing rotary valve and slidable valve seat |
| JPS5423224A (en) * | 1977-07-20 | 1979-02-21 | Acf Ind Inc | Ball valve seat assembly with removable surface seal insert |
| JPS63111379A (en) * | 1986-10-25 | 1988-05-16 | Nippon Boorubarubu Kk | Ball valve |
-
1988
- 1988-07-08 JP JP1988091362U patent/JPH0710135Y2/en not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS537841A (en) * | 1976-07-09 | 1978-01-24 | Const Metaritsuku Dou Burobuan | Cock providing rotary valve and slidable valve seat |
| JPS5423224A (en) * | 1977-07-20 | 1979-02-21 | Acf Ind Inc | Ball valve seat assembly with removable surface seal insert |
| JPS63111379A (en) * | 1986-10-25 | 1988-05-16 | Nippon Boorubarubu Kk | Ball valve |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0710135Y2 (en) | 1995-03-08 |