JPS63195476A - Ball valve - Google Patents
Ball valveInfo
- Publication number
- JPS63195476A JPS63195476A JP2692087A JP2692087A JPS63195476A JP S63195476 A JPS63195476 A JP S63195476A JP 2692087 A JP2692087 A JP 2692087A JP 2692087 A JP2692087 A JP 2692087A JP S63195476 A JPS63195476 A JP S63195476A
- Authority
- JP
- Japan
- Prior art keywords
- valve
- valve seat
- chamber
- seat sleeve
- operating cylinder
- 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.)
- Pending
Links
- 239000012530 fluid Substances 0.000 claims abstract description 16
- 239000000463 material Substances 0.000 claims description 11
- 229920001971 elastomer Polymers 0.000 claims description 9
- 239000005060 rubber Substances 0.000 claims description 9
- 239000002184 metal Substances 0.000 claims description 7
- 230000000694 effects Effects 0.000 description 4
- 241000218645 Cedrus Species 0.000 description 2
- 244000043261 Hevea brasiliensis Species 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229920003052 natural elastomer Polymers 0.000 description 2
- 229920001194 natural rubber Polymers 0.000 description 2
- 229920002379 silicone rubber Polymers 0.000 description 2
- 239000004945 silicone rubber Substances 0.000 description 2
- 229920003051 synthetic elastomer Polymers 0.000 description 2
- 239000005061 synthetic rubber Substances 0.000 description 2
- 206010011878 Deafness Diseases 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 230000001418 larval effect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000010899 nucleation Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000003134 recirculating effect Effects 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Landscapes
- Taps Or Cocks (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野：
本発明は弁子の回転操作時に弁座を引き離し１、無摺幼
状急にできるボールパルプに関するものであるＯ
従来技ｖ＃：
ボールパルプにおける球形弁子とこれに接触する弁座と
が、弁内通路の開閉に際して、無接触状愚で行える工う
に講説したものは、既に特公昭。４６−３７５７９公報
、特公昭５２−１１７７７号公報などに１ｐ知られてい
る。これらに開示されているボールパルプでは、Ｒ杉弁
子に当接する弁座を内端に備え几弁座スリーブが、弁体
に同軸芯で１！妖する管軸と一体の１１１ｋｆＴ＝回伝
片で、ビンを介して回前させることにエリ、弁子と弁座
との接触・離間が行われる工うになっている。そのため
にこの弁座スリーブを進退させる機構として、該弁座ス
リーブ後端に直結し九ガイドリングと弁木木管品に刻設
の雌ねじ品との螺合によるねじのリードで弁座が多重す
る講説になっている。[Detailed Description of the Invention] Industrial Field of Application: The present invention relates to ball pulp that can be made into a non-slip larval state by separating the valve seat during the rotating operation of the valve. Tokuko Sho had already given a lecture on how a spherical valve and a valve seat in contact with the valve seat could open and close the passage inside the valve without contact. 1p is known from Japanese Patent Publication No. 46-37579, Japanese Patent Publication No. 52-11777, etc. In the ball pulp disclosed in these documents, the inner end has a valve seat that contacts the R cedar valve, and the valve seat sleeve is coaxial with the valve body. It is a 111kfT = recirculation piece that is integrated with the pipe shaft, and is designed to make contact and separation between the valve element and the valve seat by recirculating it through the bottle. For this reason, the mechanism for advancing and retracting this valve seat sleeve is a mechanism in which the valve seat is overlapped by a screw lead that is directly connected to the rear end of the valve seat sleeve and is screwed with a nine guide ring and a female thread carved into the valve woodwind part. It has become.
この工つなｌｔ説では収扱う流体に工っでこのねじ部が
損傷しｔす、あるいは流体の温度が高い場合には熱歪に
１って、弁座の移動が困難になり、正常な弁子の無摺動
開閉が困難になるおそれがある。ま几、弁座スリーブに
回転力を与える操作回転片とピンとの接触保合条序が悪
くなると、円滑な操作が望めなくなる、などの問題点が
ある〇解決しようとする間粗点：
本発明はこの工つな間凱点を解決して、弁座が弁子に対
しわずかに進退して弁子の回動時無摺助状台とする形式
のポールバルブにおける、該弁座スリーブの作ｖＪを、
弁座スリーブに回前駆動力を加え之りすることなく、簡
単な講説で摺動させる工うにし％無理なく円滑な操作が
でき、かつ長期便用に耐え得るａ能を具備し九ボールパ
ルプを目的とする。According to this theory, if the fluid being handled damages this screw part, or if the temperature of the fluid is high, the valve seat will become difficult to move due to thermal strain, making it difficult to move the valve seat normally. It may become difficult to open and close the valve without sliding. However, if the contact arrangement between the operating rotating piece that applies rotational force to the valve seat sleeve and the pin deteriorates, smooth operation cannot be expected.〇 Shortcomings to be solved by the present invention: To solve this problem, the valve seat sleeve is operated in a pole valve in which the valve seat moves slightly forward and backward relative to the valve element, creating a non-sliding base when the valve element rotates. vJ,
The valve seat sleeve has a mechanism that allows it to slide with a simple instruction without applying any forward driving force.The valve seat sleeve can be operated easily and smoothly, and has the ability to withstand long-term use. purpose.
発明の講説：
本発明は弁本体の弁室内に位置する球形弁子に対し、該
弁室に業がる管部に表押し念弁座スリーブ内端の弁座を
、外部からの操作で、弁子全回前させる際離れる工うに
したボールバルブにおいて、弁本体管部に弁座スリーブ
操作シリンダを設け、該操作シリンダ内に弁座スリーブ
と一体にしたピストンを配投し、かつシリンダは弁室側
の室に弾性体を内股し、弁室と反対側の室には別設のの
換弁を介して閉弁時ピストンに推力が付加される工うに
したものである。Description of the invention: The present invention is based on a spherical valve located in a valve chamber of a valve body, and a valve seat at the inner end of a valve seat sleeve that is pressed outward into a pipe section extending into the valve chamber, by an external operation. In a ball valve that is designed to separate when the valve is fully advanced, a valve seat sleeve operating cylinder is provided in the valve body pipe, a piston integrated with the valve seat sleeve is disposed within the operating cylinder, and the cylinder An elastic body is placed inside the chamber on the side of the valve chamber, and a thrust force is applied to the piston when the valve is closed via a separate exchange valve in the chamber on the opposite side of the valve chamber.
本発明にては、弁座スリーブ操作シリンダが弁室側に開
口する構造にして、この開口部にはカバーを弁室側に［
Ｘり付けてシリンダ内部と弁本体内とを水密に保り工う
にした。まｔ１木発明によれば、弁座操作シリンダ講説
都が升木木と分離できる工うにして嵌合連結して情説す
ることもできる。In the present invention, the valve seat sleeve operating cylinder is structured to open toward the valve chamber side, and a cover is attached to the opening toward the valve chamber side.
X was attached to keep the inside of the cylinder and the valve body watertight. According to the invention, the valve seat operating cylinder and the valve seat can be separable from each other so that they can be fitted and connected to each other.
本発明における弁座スリーブ操作シリンダの弁座スリー
ブ後退作用力を付与するための弾性体としては、金属製
“板ばね・ゴム質材（次とえば天然ゴム、シリコーンゴ
ム、その他合収ゴム）によってリング状に形成し友もの
を用いる口なお、板ば′ねを除いてゴム質材を用いる場
合には、変形し得るスペースが、シリンダの押戻し側室
内に設ける工うにする。ＩＬ リンク状にするゴム質の
ばね本は、その断面形状をバネ性が高まる工うな形状に
することで、材質と形状とにより、より−１向上させる
ことができる。さらに、ゴム質のばね体の場合、或いは
金属製のばね体を用いる場合に、１１１ｉ５１のリング
状にすることなく、複数個に分割したものを配して変形
スペースを設けておくことて工り、有効に作動させ得る
。ま念、この分割したばねｌ ｆｔ！ｌ ｌＩＩ！１１
の形状についても、それを復元性の高い形状にしておく
ことで１９有効に作用し得る。In the present invention, the elastic body for applying force for retracting the valve seat sleeve of the valve seat sleeve operation cylinder is a metal plate spring or a rubber material (for example, natural rubber, silicone rubber, or other synthetic rubber). If a rubber material is used except for the leaf spring, a deformable space should be provided in the push-back side chamber of the cylinder. By changing the cross-sectional shape of the rubber spring body to a shape that increases the springiness, it is possible to improve the elasticity by -1 depending on the material and shape.Furthermore, in the case of a rubber spring body, or When using a metal spring body, instead of making it into a 111i51 ring shape, you can divide it into multiple pieces and create a space for deformation to make it work effectively. Split spring l ft!l lII!11
19 can also be effective by making the shape highly restorable.
実施例：
以下本発明ボールバルブを一実施例について図面にエリ
詳述すれば、第１図に示すのｔ′ｉ最も一般的す二方口
弁であって、弁本体（１）の中央弁室１２）に対して連
結する背部１３１１３＋には、それぞれ弁座スリーブ操
作シリンダ１４）が管軸心と同心で一体に設けである。Embodiment: Hereinafter, one embodiment of the ball valve of the present invention will be described in detail with reference to the drawings. On the back portion 13113+ connected to the chamber 12), a valve seat sleeve operating cylinder 14) is provided integrally and concentrically with the tube axis.
そして管部上ｌ ｆｉｌには各各弁座スリーブ１６）が
進退可能に嵌押してあり、その各先端を弁ｆｆｌ ｔｅ
ｌとし、中間部外周に適宜厚みの鍔状に前記操作シリン
ダ（４）に置台するピストン（７）を突設し、該ピスト
ン（７）突設部から所聾寸法離れ次位置にシールリング
！８１ ＋８１が溝に低められて装着しである。なお、
弁座１８１品には１またはそれ以上の細い溝条を環状に
刻設して、弁子−との接触面積を少なくシ、接触効果を
高める工うにしておくことが好ましい。Each valve seat sleeve 16) is fitted into the upper part of the pipe so that it can move forward and backward, and each end of the valve seat sleeve 16) is inserted into the upper part of the pipe.
1, a piston (7) to be placed on the operating cylinder (4) is protruded from the outer periphery of the intermediate portion in the shape of a brim with an appropriate thickness, and a seal ring is placed at the next position at a distance of a deaf dimension from the protruding portion of the piston (7). 81 +81 is lowered into the groove and installed. In addition,
It is preferable that one or more thin grooves be carved into the valve seat 181 in an annular shape to reduce the contact area with the valve element and improve the contact effect.
ま友、弁座スリーブ１５）の後１ｌｌｉ！１品は内崗部
１６）を後端に向って拡がる勾配もしくは緩やかな曲面
にして流動抵抗が少なくなる形状にしである。Mayu, 1lli after valve seat sleeve 15)! One product has an inner wall 16) with a slope that widens toward the rear end or a gently curved surface to reduce flow resistance.
ＩｒＪ記介座スリーブ操作シリンダ１４）は、図示のよ
うに弁室１りに向って開口し、＊ｉミスリーブ１５に付
設のピストン（７）が該シリンダ１４）内に弁室１２）
刈から挿入されるようにして、シリンダ１４）内８壁端
部に設は友ねじ部（９：にシールカバーｕａ＋ｔ−螺合
定４１．、その内周孔（！■と前記弁座スリーブ＋５１
側のシールリング（８）とに工ってシリンダ（４）の前
室（４）内がシールされるようになっている。なおこの
カバー叫は介木体（すに対して７ランジ邸でボルトＷＩ
′４ｔするようにしてもよい。そして操作シリンダ（４
）の前室１４）内には弁座（６）引き離し用のばねＵ乃
を内設し、後室１へは別設のｌ１７Ｊ換弁頌と配管−し
て圧力流体供Ｉ＆源（油圧・交圧など）と接続し、加圧
操作することでピストン（７）ヲ介し弁座スリーブ１６
）に推力を加え、弁座（６）と弁子１〜とを接触させ、
この圧力流体の加圧力？解放″ｔｒｔば、ばね四カで弁
座（６）が弁子ＩＩ〜から原かに離れて無接触状惣とな
る工うにＩｔ収する。The interposed sleeve operating cylinder 14) opens toward the valve chamber 1 as shown, and the piston (7) attached to the sleeve 15 enters the valve chamber 12) in the cylinder 14).
In order to be inserted from the cutting, a companion screw part (9: 41.) is installed at the end of the inner 8 wall of the cylinder 14), and a seal cover UA+T-screw fitting 41., its inner peripheral hole (!■) and the valve seat sleeve +51.
The inside of the front chamber (4) of the cylinder (4) is sealed by the side seal ring (8). In addition, this cover shout is ``Boruto WI'' at 7 Ranji residence against Kaiki body.
'4t. and the operation cylinder (4
) A spring U for separating the valve seat (6) is installed inside the front chamber 14), and the rear chamber 1 is connected to a separate l17J exchange valve and piping to supply pressure fluid I & source (hydraulic/exchange). pressure, etc.) and pressurize the valve seat sleeve 16 through the piston (7).
) to bring the valve seat (6) into contact with the valve elements 1~,
The pressurizing force of this pressure fluid? When the valve seat (6) is released, the spring force moves the valve seat (6) completely away from the valve II~ into a non-contact state.
なお、弁子σ５１は弁棒ｌ１１９を介して、手１あるい
はアクチェータと連結して前方駆動による回動のいずれ
でもよく、その支持手段については、収扱う流体の条汗
に応じ、Ｎｋ通の構造にすればよい。図示したものは最
も単純な構造であり、球形弁子が弁棒とｇＪり蓮された
７ａ−ティング杉のものでも同様効果を得る〇
しかして、前記弁座スリーブ操作シリンダ（４）の弁座
引き離し用のばね０りとしては、植種の形式が採用でき
る。金属板ばねを採用するときには皿ばね単体、あるい
は皿ばねｔ−複数枚組み合せたもの、断面Ｕ字形にした
もの、などのリング状のものを用いる。この際ばねの推
力が大きいと、その分加圧力を大きくしなくてはならな
いので、両者の兼ね合いで設定できる。なお、これらの
各種形状で、必要に応じて一品金切断してばね力を弱め
丸形状にしても工い。何機物の可撓体を用いる場合、ゴ
ム質の材料に工りＯリング状に形状したものを内押する
０材質的に天然ゴムから合成ゴム、シリブーンゴムなど
を用途にＭ心したものを用いる。なお、断面形状につい
ては、いわゆるＯリング以外にばね効果が高められる形
状であれば工い。The valve element σ51 may be connected to the hand 1 or an actuator and rotated by forward drive via the valve stem l119, and its supporting means may have a structure of Nk depending on the striations of the fluid to be handled. Just do it. The structure shown is the simplest, and the same effect can be obtained even with a 7A-ting cedar structure in which the spherical valve is connected to the valve stem.However, the valve seat of the valve seat sleeve operating cylinder (4) A seeding method can be used as the spring for separating. When a metal plate spring is used, a ring-shaped spring such as a single disc spring, a combination of multiple disc springs, or a U-shaped cross section is used. At this time, if the thrust of the spring is large, the pressing force must be increased accordingly, so it can be set by balancing both. In addition, these various shapes can be cut in one piece to weaken the spring force and create a round shape if necessary. When using a flexible body of any kind, use a rubber material that is shaped like an O-ring and is pressed internally.Materials such as natural rubber, synthetic rubber, silicone rubber, etc. are used with an M center for the purpose. . Regarding the cross-sectional shape, any shape other than the so-called O-ring that can enhance the spring effect can be used.
さらに、この弁座引き離し用のばね（１匂として、上記
したようなリング状のもののほかに、複数個に分割され
友弾性体を個個に、あるいは保持器の＝１５をものを介
在させて、シリンダ＋４１の前室（４）に配しても工い
。この場合も金属板製のもの、ゴム質材で杉我し友もの
、あるいは金属とゴム質材とを組み合せて構造し友もの
、のいずれであっても工い０なおゴム質材にて成彩した
弾性体を用いるときには、最大に変形した状唾でシリン
ダ前室（４）のスペースに余裕があるよう断面形状を決
める必要がある〇
所くの如く構造した本発明ボールパルプに工れば、弁の
開閉操作に際し、弁座（６）が弁子σＩＫ対して無摺幼
状内とするには、弁座スリーブ操作シリング（４）への
別途圧力流体の供給を断って解煎状合にすれば、該操作
シリンダ１４）内の引き離し用ばねａ’４力でピストン
（７）が押し戻され、弁座スリーブ１６）が該ピストン
（７）を介して後退することにより、弁子１ＪＦＯから
弁座（６）を離すことができる。この状籾では弁子と弁
座ｔｅ＋とはシずね（ｌ′４の復元竜；ぞけであるから
僅かｔて離間する。弁子ＩＩ〜は弁座（６）との接触が
断たれているので僅少な前方で回動操作できる。Furthermore, this spring for separating the valve seat (in addition to the ring-shaped one described above, it can be divided into multiple pieces and have individual elastic bodies, or the retainer = 15 can be interposed with a spring). , it can also be placed in the front chamber (4) of the cylinder +41.In this case, it can also be made of a metal plate, a rubber material, or a material made of a combination of metal and rubber materials. , when using an elastic body made of rubber material, it is necessary to determine the cross-sectional shape so that there is enough space in the cylinder front chamber (4) when the body is deformed to the maximum. If the ball pulp of the present invention is constructed as shown in 〇, the valve seat sleeve operation sill will be required to keep the valve seat (6) in a non-sliding state with respect to the valve element σIK when opening and closing the valve. When the pressure fluid is separately supplied to (4) and the valve is decooked, the piston (7) is pushed back by the force of the separating spring a'4 in the operating cylinder 14), and the valve seat sleeve 16) By retreating via the piston (7), the valve seat (6) can be separated from the valve element 1JFO. In this state of rice, the valve and the valve seat te+ are separated by a slight distance t because it is a restoration dragon of l'4.The contact between the valve and the valve seat (6) is broken. Because of this, it can be rotated slightly in front.
次に閉弁（開弁時でも弁子と弁座とを接触させておくこ
とが好ましい）に際しては、弁座スリーブ操作シリンダ
１番）の後室１４）に圧力流体を供給することで、ピス
トン（７）を介して弁座スリーブ１５１ ｔ” １ｆＪ
進させ、弁座ｔｅ＋を弁子α均に当接させる。この１糸
の圧力流体の加圧力を高めれば、弁座（６）の接触圧も
高められる。この際には、前室１４）内のばね帽カ以上
の加圧力が加えられ、該ばねＩＩｔ５はピストン（７）
とシーフレカバー１１０１とで挟圧されている。したが
ってピストン（７）への弁座当接のための加圧力が除か
れると直ちにピストン（７）が押し災される。Next, when closing the valve (it is preferable to keep the valve element and valve seat in contact even when the valve is open), by supplying pressure fluid to the rear chamber 14) of the valve seat sleeve operation cylinder No. 1), the piston (7) Through the valve seat sleeve 151 t” 1fJ
advance to bring the valve seat te+ into contact with the valve plate α. If the pressurizing force of this single thread of pressure fluid is increased, the contact pressure of the valve seat (6) will also be increased. At this time, a pressure greater than the spring cap force in the front chamber 14) is applied, and the spring IIt5 is pressed against the piston (7).
and the safety cover 1101. Therefore, as soon as the pressing force for bringing the valve seat into contact with the piston (7) is removed, the piston (7) is crushed.
そして弁座（６）を弁座引に対して当接し友状翳を艮時
間維押するには、別設のｇＪ換介２１を閉じて加ＥＥＭ
と遮断し、操作シリンダ（４）の後室＋４１側への加Ｅ
Ｅ流体管路をロックしておけばよｈ０木発明の弁座の操
作ｉ敗については、上記した二方口弁の一方のｇ部のみ
、あるいは三方口・多方口の弁にあっても同様にして組
み込み使用することができる。Then, in order to keep the valve seat (6) in contact with the valve seat pull and press the valve seat for a long time, close the separately provided gJ exchanger 21 and press the
and cut off the operation cylinder (4) to the rear chamber +41 side.
EThe fluid pipe line should be locked.H0 Regarding the operation of the valve seat of the invention, the same applies even if it is only one part G of the two-way valve mentioned above, or a three-way or multi-way valve. It can be used as a built-in device.
発明の効果：
本発明によれば、弁子と弁座との無括ｗＪ開閉操作が、
流体圧操作でもって行う↓うてしたことにニジ、ねじの
リードを利用した方式などで発生するｌｌＸ汲い流体に
よるｊ＆作困鑑な間殖点を解消し、簡単な構造で円滑に
、かつ確実に操作でき、殊に高温度の流体を収扱う管路
に設けて支障なく使用できる等、有用な発明であるとい
える。Effects of the invention: According to the invention, the non-closing wJ opening/closing operation between the valve element and the valve seat is
Performed by fluid pressure operation ↓In particular, it eliminates the difficult interpolation points caused by llX pumping fluid that occur with methods that use needles and screw leads, and can be done smoothly with a simple structure. It can be said that this invention is a useful invention because it can be operated reliably and can be used without any trouble especially when installed in a pipeline that handles high-temperature fluid.
第１図は本発明ボールパルプの一実施例縦断面図、第２
図は要部の拡大断面図である。
（す・・・弁本体 １２）・・・弁 室（３）・・・
管 部 ＩＩＩ・・・弁座スリーブ１４）・
・・弁座スリーグ操作シリング（６）・・・介 座
（７）・・・ピストン（８）・・・シールリン
グ （９）・・・ね じ ５叫・・・シールカバ
ー ｌＪ′４・・・引き離し用ばねＪｕｌ・・・
弁 子 （至）・・・切 換 弁シυ
・・・配 管
出願人 株式会社 テ ス コ
第１図Fig. 1 is a longitudinal sectional view of one embodiment of the ball pulp of the present invention, Fig.
The figure is an enlarged sectional view of the main part. (S... Valve body 12)... Valve chamber (3)...
Pipe part III... Valve seat sleeve 14)
... Valve seat three-way operation ring (6) ... Intermediate seat (7) ... Piston (8) ... Seal ring (9) ... Screw 5 ... Seal cover lJ'4 ...・Removal spring Jul...
Valve element (to)...Switching valve element υ
...Piping applicant: Tesco Co., Ltd. Figure 1
Claims (1)
に繋がる管部に嵌挿した弁座スリーブ内端の弁座を、外
部からの操作で、弁子を回動させる際離れるようにした
ボールバルブにおいて、弁本体管部に弁座スリーブ操作
シリンダを設け、該操作シリンダ内に弁座スリーブと一
体にしたピストンを配設し、かつシリンダ部は弁室側の
室に弾性体を内設し、弁室と反対側の室に弁座押圧用の
流体出入り管を接続するようにしたことを特徴とするボ
ールバルブ。 ２ 弁座スリーブ操作シリンダの弁座スリーブ後退作用
力を付与する弾性体は金属もしくはゴ質材で環状に形成
されている特許請求の範囲第１項記載のボールバルブ。 ３ 弁座スリーブ操作シリンダの弁座スリーブ後退作用
力を付与する弾性体は金属板もしくはゴム質材で形成さ
れた複数個の部片をシリンダのスペース内に変形復元可
能に内在させた特許請求の範囲第１項記載のボールバル
ブ。[Claims] 1. For a spherical valve located in a valve chamber of a valve body, the valve seat at the inner end of a valve seat sleeve inserted into a pipe connected to the valve chamber is operated from the outside to open the valve. In a ball valve that separates when rotated, a valve seat sleeve operating cylinder is provided in the valve body tube, a piston integrated with the valve seat sleeve is disposed within the operating cylinder, and the cylinder part is connected to the valve chamber. A ball valve characterized in that an elastic body is provided in a side chamber, and a fluid inlet/output pipe for pressing a valve seat is connected to a chamber on the opposite side of the valve chamber. 2. The ball valve according to claim 1, wherein the elastic body that applies a force for retracting the valve seat sleeve of the valve seat sleeve operating cylinder is formed in an annular shape from metal or gossamer material. 3. The elastic body that applies the force for retracting the valve seat sleeve of the valve seat sleeve operating cylinder is a plurality of pieces formed of a metal plate or a rubber material that are housed within the space of the cylinder so that they can be deformed and restored. A ball valve according to item 1 of the scope.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2692087A JPS63195476A (en) | 1987-02-06 | 1987-02-06 | Ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2692087A JPS63195476A (en) | 1987-02-06 | 1987-02-06 | Ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63195476A true JPS63195476A (en) | 1988-08-12 |
Family
ID=12206623
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2692087A Pending JPS63195476A (en) | 1987-02-06 | 1987-02-06 | Ball valve |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63195476A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103982674A (en) * | 2014-05-29 | 2014-08-13 | 昆山维萨阀门有限公司 | Top-mounting fixation ball valve |
| CN108194654A (en) * | 2017-12-27 | 2018-06-22 | 西安航天远征流体控制股份有限公司 | A kind of high-precision low torque regulation ball valve |
| KR102630390B1 (en) * | 2022-12-26 | 2024-01-29 | 허만영 | Ball valve proveded with sealing sheet enhanced sealing force |
-
1987
- 1987-02-06 JP JP2692087A patent/JPS63195476A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103982674A (en) * | 2014-05-29 | 2014-08-13 | 昆山维萨阀门有限公司 | Top-mounting fixation ball valve |
| CN108194654A (en) * | 2017-12-27 | 2018-06-22 | 西安航天远征流体控制股份有限公司 | A kind of high-precision low torque regulation ball valve |
| KR102630390B1 (en) * | 2022-12-26 | 2024-01-29 | 허만영 | Ball valve proveded with sealing sheet enhanced sealing force |
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