JP3163945U - Self-balancing self-compensating sealed ball valve - Google Patents

Self-balancing self-compensating sealed ball valve Download PDF

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JP3163945U
JP3163945U JP2010600015U JP2010600015U JP3163945U JP 3163945 U JP3163945 U JP 3163945U JP 2010600015 U JP2010600015 U JP 2010600015U JP 2010600015 U JP2010600015 U JP 2010600015U JP 3163945 U JP3163945 U JP 3163945U
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valve
self
balancing
compensating
valve core
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王左一
朱力艶
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    • 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
    • F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
    • F16K5/06—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor
    • F16K5/0605—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor with particular plug arrangements, e.g. particular shape or built-in means
    • 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
    • F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
    • F16K5/06—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor
    • 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
    • F16K27/00—Construction of housing; Use of materials therefor
    • F16K27/06—Construction of housing; Use of materials therefor of taps or cocks
    • F16K27/067—Construction of housing; Use of materials therefor of taps or cocks with spherical plugs
    • 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
    • F16K39/00—Devices for relieving the pressure on the sealing faces
    • F16K39/06—Devices for relieving the pressure on the sealing faces for taps or cocks
    • 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
    • F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
    • F16K5/08—Details
    • F16K5/14—Special arrangements for separating the sealing faces or for pressing them together
    • F16K5/20—Special arrangements for separating the sealing faces or for pressing them together for plugs with spherical surfaces
    • 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
    • F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
    • F16K5/08—Details
    • F16K5/14—Special arrangements for separating the sealing faces or for pressing them together
    • F16K5/20—Special arrangements for separating the sealing faces or for pressing them together for plugs with spherical surfaces
    • F16K5/201—Special arrangements for separating the sealing faces or for pressing them together for plugs with spherical surfaces with the housing or parts of the housing mechanically pressing the seal against the plug

Abstract

【課題】バルブ操作のトルクが著しく減少し、同じレベルの圧力下において、バルブ口径の範囲が拡大可能となり、中圧流体または高圧流体の通過を制御することができるボールバルブを提供する。【解決手段】バルブボディ５、バルブキャップ、及びバルブボディ５内に装着されたバルブコア６を含む自己平衡式の自己補償型密封ボールバルブであって、上記バルブボディ５及び上記バルブキャップの内部には、バルブ入口と連通する対称的であり、上記バルブコア６中のＴ型孔と対応する平衡キャビティを備え、上記バルブコア６と上記バルブボディ５との間には密封プランジャーが装着されているので、当該ボールバルブは圧力流体の通過制御に好適に利用することができる。【選択図】図１Provided is a ball valve in which the valve operating torque is remarkably reduced, the range of the valve diameter can be expanded under the same level of pressure, and the passage of medium pressure fluid or high pressure fluid can be controlled. A self-balancing self-compensating sealed ball valve including a valve body, a valve cap, and a valve core mounted in the valve body is provided inside the valve body and the valve cap. Symmetric to the valve inlet, provided with a balanced cavity corresponding to the T-shaped hole in the valve core 6, and a sealing plunger is mounted between the valve core 6 and the valve body 5, The ball valve can be suitably used for controlling the passage of pressure fluid. [Selection] Figure 1

Description

本考案は、中圧下または高圧下において使用される、大口径を有するボールバルブに関するものである。   The present invention relates to a ball valve having a large diameter, which is used under medium pressure or high pressure.

従来では、各種ボールバルブにおいて、出入口は直接バルブボディキャビティと連通されており、圧力流体は直接バルブコア（Valve core：弁芯）と接触し、バルブコアを９０度回転させることによって開閉を実現している。比較的圧力の高い、または比較的口径の大きいボールバルブを開閉する際、圧力流体によって大きな圧力が加わり、バルブコアは弁座または駆動軸に圧接することになる。これにより、開閉の操作時に大きなトルクが生じ、摩擦力の働きにより密封部位には損傷が生じやすくなる。以上は、大口径、高圧力のボールバルブの発展に影響を及ぼす主な要因となっている。   Conventionally, in various ball valves, the inlet / outlet is directly connected to the valve body cavity, and the pressure fluid is directly contacted with the valve core (valve core), and opening and closing is realized by rotating the valve core by 90 degrees. . When a ball valve having a relatively high pressure or a relatively large diameter is opened and closed, a large pressure is applied by the pressure fluid, and the valve core comes into pressure contact with the valve seat or the drive shaft. Thus, a large torque is generated during the opening / closing operation, and the sealed portion is easily damaged by the action of the frictional force. These are the main factors affecting the development of large-diameter, high-pressure ball valves.

本考案の目的は自己平衡式の自己補償型密封ボールバルブを提供することであり、当該ボールバルブは、平衡キャビティを用いることにより、バルブコアの両側に圧力流体を同時に、かつ、対称的に接触させることにより、圧力の自己平衡化を実現する。また、バルブコアに対して自己補償型の密封方式を採用することにより、ボールバルブの軽快な開閉を実現し、さらに、従来のボールバルブに比べてより大口径であり、高圧下において使用できる新型のボールバルブを設計・製造することができる。   An object of the present invention is to provide a self-balancing self-compensating sealed ball valve, which uses a balancing cavity to simultaneously and symmetrically contact pressure fluid on both sides of the valve core. By doing so, pressure self-equilibration is realized. In addition, by adopting a self-compensating sealing method for the valve core, the ball valve can be opened and closed more easily. In addition, it has a larger diameter than conventional ball valves and can be used under high pressure. Ball valves can be designed and manufactured.

バルブボディ、バルブキャップ、及びバルブボディ内に装着されたバルブコアを備える自己平衡式の自己補償型密封ボールバルブであって、上記バルブボディ及び上記バルブキャップ内には、バルブ入口と連通する対称的な平衡キャビティが設けられ、上記平衡キャビティと上記バルブコア内のＴ型孔とは対応しており、上記バルブコアと上記バルブボディとの間には密封プランジャーが装着されている。   A self-balancing self-compensating sealed ball valve having a valve body, a valve cap, and a valve core mounted in the valve body, wherein the valve body and the valve cap are symmetrically connected to a valve inlet. A balanced cavity is provided, the balanced cavity and the T-shaped hole in the valve core correspond to each other, and a sealing plunger is mounted between the valve core and the valve body.

上記自己平衡式の自己補償型密封ボールバルブは、上記平衡キャビティ内においては背圧バネが対称的に装着されており、上記背圧バネは上記密封プランジャーに圧接している。   In the self-balancing self-compensating sealed ball valve, a back pressure spring is mounted symmetrically in the balancing cavity, and the back pressure spring is in pressure contact with the sealing plunger.

上記自己平衡式の自己補償型密封ボールバルブにおいて、上記Ｔ型孔の第三端は環状平衡キャビティを介して、バルブ出口と連通している。   In the self-balancing self-compensating sealed ball valve, the third end of the T-shaped hole communicates with the valve outlet via an annular balancing cavity.

本考案は、平衡キャビティを設けることにより、同じ圧力が同時に二つの自己補償型密封プランジャーに加わるようになり、これによってバルブコアに対する圧力の自己平衡化を実現する。これと同時に、バルブコアに圧接する自己補償型密封プランジャーと、流路の開閉を制御するバルブコアの位置とを対応させることにより、ボールバルブの開閉機能を実現している。これにより、バルブ操作のトルクは著しく減少し、同じレベルの圧力下において、バルブ口径の範囲は拡大可能となり、中圧流体または高圧流体の通過を制御することができる。   The present invention provides a balanced cavity so that the same pressure is applied to two self-compensating sealing plungers simultaneously, thereby realizing self-balancing of pressure against the valve core. At the same time, the opening / closing function of the ball valve is realized by associating the self-compensating sealing plunger pressed against the valve core with the position of the valve core for controlling the opening / closing of the flow path. As a result, the torque of the valve operation is significantly reduced, and the range of the valve diameter can be expanded under the same level of pressure, so that the passage of the medium pressure fluid or the high pressure fluid can be controlled.

圧力流体は、バルブボディの入口を通過した後、上記バルブボディと上記バルブキャップ中に備えられているバルブ入口と連通する対称的な平衡キャビティとを通過し、バルブコア６の両側と二つの自己補償型密封プランジャー９とにそれぞれ接触する。この時、バルブコアは圧力平衡状態にあるため、容易にバルブコアを開閉することができ、トルクの小さい状態下での開閉を実現可能である。圧力流体による機械的損傷を減少または回避することにより、バブルの寿命を大きく伸ばすことができ、回転時の圧力を下げることができる。   After passing through the inlet of the valve body, the pressure fluid passes through the valve body and a symmetric equilibrium cavity communicating with the valve inlet provided in the valve cap, and on both sides of the valve core 6 and two self-compensating. The mold sealing plungers 9 are contacted respectively. At this time, since the valve core is in a pressure equilibrium state, the valve core can be easily opened and closed, and opening and closing under a small torque state can be realized. By reducing or avoiding mechanical damage due to pressure fluid, the lifetime of the bubble can be greatly extended and the pressure during rotation can be reduced.

バルブコアが「閉」の状態下では、逆方向からの圧力があっても、バルブコアは環状平衡キャビティ内にあるため、側面からの圧力を平衡化することができる。同様に、トルクの小さい状態下での開閉を実現することができ、圧力の不平衡による機械損傷とバルブの漏れなどの問題を回避することができる。   Under the “closed” state of the valve core, even if there is pressure from the opposite direction, the pressure from the side can be balanced because the valve core is in the annular equilibrium cavity. Similarly, opening and closing under a small torque condition can be realized, and problems such as mechanical damage and valve leakage due to pressure imbalance can be avoided.

自己補償型密封プランジャー９は、バルブコア６と接触する側面の面積が他方の面積より小さく、終始バルブコア６に圧接することにより密封状態を実現でき、かつ、摩擦によって消耗した後は自己補償が可能である。背圧バネ８は密封のための圧力を提供している。バルブコア６のＴ型孔は直通孔、及び直通孔と連通する開通流路１５を含み、これにより駆動軸が９０度回転した際、Ｔ型孔における直通孔の位置選択により開閉を実現できる。   The self-compensating sealing plunger 9 has a smaller side area in contact with the valve core 6 than the other area, can be sealed by pressing against the valve core 6 from beginning to end, and can self-compensate after being consumed by friction. It is. The back pressure spring 8 provides a pressure for sealing. The T-shaped hole of the valve core 6 includes a direct hole and an open passage 15 communicating with the direct hole, so that when the drive shaft rotates 90 degrees, opening and closing can be realized by selecting the position of the direct hole in the T-shaped hole.

本考案に係わるボールバルブが「開」の際、全体構造の側面図である。When the ball valve concerning this invention is "open", it is a side view of the whole structure. 本考案に係わるボールバルブが「開」の際、上部から見た断面図である。When the ball valve concerning this invention is "open", it is sectional drawing seen from the upper part. 本考案に係わるボールバルブが「閉」の際、全体構造の側面図である。When the ball valve concerning this invention is "closed", it is a side view of the whole structure. 本考案に係わるボールバルブが「閉」の際、上部から見た断面図である。It is sectional drawing seen from the upper part, when the ball valve concerning this invention is "closed".

（実施例１）
バルブボディ５、バルブキャップ７、バルブボディ内に装着されたバルブコア（弁芯）６、及び上記バルブコアを制御するためのレバーハンドル３を備える自己平衡式の自己補償型密封ボールバルブであって、上記バルブボディ５及び上記バルブキャップ７内には、バルブ入口１２と連通する対称的な平衡キャビティ１４が備えられ、上記平衡キャビティ１４は上記バルブコア６内のＴ型孔と対応しており、上記バルブコア６と上記バルブボディ５との間には密封プランジャー９が装着されている。 Example 1
A self-balancing self-compensating sealed ball valve comprising a valve body 5, a valve cap 7, a valve core (valve core) 6 mounted in the valve body, and a lever handle 3 for controlling the valve core, The valve body 5 and the valve cap 7 are provided with a symmetrical equilibrium cavity 14 communicating with the valve inlet 12. The equilibrium cavity 14 corresponds to a T-shaped hole in the valve core 6. A sealing plunger 9 is mounted between the valve body 5 and the valve body 5.

（実施例２）
実施例１に記載されている自己平衡式の自己補償型密封ボールバルブであって、上記平衡キャビティ内には背圧バネ８が対称的に装着され、上記背圧バネは密封プランジャー９に圧接する。これにより、密閉面間の緊密な接触を実現している。 (Example 2)
A self-balancing self-compensating sealed ball valve described in the first embodiment, wherein a back pressure spring 8 is mounted symmetrically in the balancing cavity, and the back pressure spring is pressed against a sealing plunger 9. To do. This achieves close contact between the sealing surfaces.

（実施例３）
実施例１または実施例２に記載の自己平衡式の自己補償型ボールバルブであって、上記Ｔ型孔の第三端（開通流路）１５は環状平衡キャビティを介して、バルブ出口１３と連通している。 (Example 3)
The self-balancing self-compensating ball valve described in the first or second embodiment, wherein the third end (opening flow path) 15 of the T-shaped hole communicates with the valve outlet 13 via an annular balanced cavity. is doing.

（実施例４）
自己平衡式の自己補償型ボールバルブであって、エイコーン・ナット（acom nut）１、スナップリング２、レバーハンドル３、回転軸４、バルブボディ５、バルブコア６、バルブキャップ７、背圧バネ８、密封プランジャー９、密閉リング１０及びボルト１１を含む。上記バルブキャップ７は、ボルト１１によってボディ５上に固定されている。自己補償型密封プランジャー９はバルブキャップ７内に装着されており、バルブコア６は自己補償型密封プランジャー９の内側に装着されている。背圧バネ８はバルブキャップ７と自己補償型密封プランジャー９との間に装着されている。上記バルブボディ５の右側の流路はバルブボディ内キャビティと直接連通しておらず、上下バルブキャップとバルブボディ内部の流路を形成する平衡キャビティ１４と連通しており、Ｔ型孔の他方の流路は直接バルブボディ５内部の環状平衡キャビティと連通している。 Example 4
A self-balancing self-compensating ball valve comprising an acorn nut 1, a snap ring 2, a lever handle 3, a rotating shaft 4, a valve body 5, a valve core 6, a valve cap 7, a back pressure spring 8, A sealing plunger 9, a sealing ring 10 and a bolt 11 are included. The valve cap 7 is fixed on the body 5 by bolts 11. The self-compensating sealing plunger 9 is mounted in the valve cap 7, and the valve core 6 is mounted inside the self-compensating sealing plunger 9. The back pressure spring 8 is mounted between the valve cap 7 and the self-compensating sealing plunger 9. The flow path on the right side of the valve body 5 is not in direct communication with the cavity in the valve body, but is in communication with the balance cavity 14 that forms the flow path inside the upper and lower valve caps and the valve body, and the other of the T-shaped holes. The flow path communicates directly with the annular equilibrium cavity inside the valve body 5.

上記自己平衡式の自己補償型密封ボールバルブにおいて、上記上下両方に位置する二つの自己補償型密封プランジャー９の大きさ及び形状は一致している。   In the self-balancing self-compensating sealed ball valve, the sizes and shapes of the two self-compensating sealing plungers 9 positioned both above and below are the same.

上記自己平衡式の自己補償型密封ボールバルブにおいて、上記バルブコアは二つの自己補償型密封プランジャーの間に装着され、バルブコア６は、対称的な平衡キャビティと対応する直通孔以外に、直通孔と連通するバルブコアの開通流路１５を設けている。レバーハンドル３はバルブコアと連通しており、エイコーン・ナット１によりバルブボディ５に固定され、エイコーン・ナット１とレバーハンドルとの間には平らなスナップリング２が設けられている。   In the self-balancing self-compensating sealed ball valve, the valve core is mounted between two self-compensating sealing plungers, and the valve core 6 includes a through hole in addition to a symmetrical through cavity and a corresponding through hole. An open passage 15 for the valve core that communicates is provided. The lever handle 3 communicates with the valve core, is fixed to the valve body 5 by an acorn nut 1, and a flat snap ring 2 is provided between the acorn nut 1 and the lever handle.

バルブボディ５内部の環状平衡キャビティは円孔形であって、入口側の二つの流路の面積の和は要求される通径と同じか、または若干小さい。自己補償型密封プランジャー９は、バルブコア６と接触する側面の面積が他方の面積より若干小さい。これにより、自己補償型密封プランジャー９は、圧力流体の圧力によってバルブコア６に圧接され、密封を実現している。これと同時に、二つの自己補償型密封プランジャー９の形状及びサイズは一致させるべきである。バルブコア６の直通孔と、それと連通するバルブコアのＴ型孔の開通流路１５の面積は技術要求を満たさなければならない。バネによる圧接力は自己補償型密封プランジャー９の摩擦力を相殺でき、バルブコア６に対し密封するための初期の力を提供する。   The annular balanced cavity inside the valve body 5 has a circular hole shape, and the sum of the areas of the two flow paths on the inlet side is the same as or slightly smaller than the required diameter. The self-compensating sealing plunger 9 has a slightly smaller side area in contact with the valve core 6 than the other area. As a result, the self-compensating sealing plunger 9 is pressed against the valve core 6 by the pressure of the pressure fluid to realize sealing. At the same time, the shape and size of the two self-compensating sealing plungers 9 should match. The area of the direct passage hole of the valve core 6 and the opening flow path 15 of the T-shaped hole of the valve core communicating with the valve core 6 must satisfy the technical requirements. The pressing force by the spring can cancel the frictional force of the self-compensating sealing plunger 9 and provides an initial force for sealing against the valve core 6.

Claims (3)

バルブボディ、バルブキャップ、及び上記バルブボディ内に装着されたバルブコアを含む自己平衡式の自己補償型密封ボールバルブであって、
上記バルブボディ及び上記バルブキャップの内部には、バルブ入口と連通する対称的であり、上記バルブコア中のＴ型孔と対応する平衡キャビティを備え、
上記バルブコアと上記バルブボディとの間には密封プランジャーが装着されていることを特徴とする自己平衡式の自己補償型密封ボールバルブ。 A self-balancing self-compensating sealed ball valve including a valve body, a valve cap, and a valve core mounted in the valve body,
The valve body and the valve cap are symmetrically connected to the valve inlet and have a balanced cavity corresponding to the T-shaped hole in the valve core.
A self-balancing self-compensating sealed ball valve, wherein a sealing plunger is mounted between the valve core and the valve body. 上記平衡キャビティ内部には背圧バネが対称的に装着され、
上記背圧バネは、上記密封プランジャーに圧接していることを特徴とする請求項１に記載の自己平衡式の自己補償型密封ボールバルブ。 A back pressure spring is mounted symmetrically inside the equilibrium cavity,
2. The self-balancing self-compensating sealed ball valve according to claim 1, wherein the back pressure spring is in pressure contact with the sealing plunger. 上記Ｔ型孔の第三端は、環状平衡キャビティを介して、上記バルブ出口と連通していることを特徴とする請求項１または２に記載の自己平衡式の自己補償型密封ボールバルブ。   3. The self-balancing self-compensating sealed ball valve according to claim 1, wherein a third end of the T-shaped hole communicates with the valve outlet through an annular balancing cavity.
JP2010600015U 2007-05-24 2008-03-15 Self-balancing self-compensating sealed ball valve Expired - Fee Related JP3163945U (en)

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PCT/CN2008/070508 WO2008141544A1 (en) 2007-05-24 2008-03-15 A self-balancing type self-compensation sealed valve

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CN201028041Y (en) * 2007-05-24 2008-02-27 朱力艳 Self-balancing self-compensating sealing ball valve
CN102261486B (en) * 2011-02-24 2013-03-13 淄博市博山防爆电器厂有限公司 High-pressure stop/ pollution discharge ball core valve
US8967199B2 (en) * 2012-09-25 2015-03-03 General Compression, Inc. Electric actuated rotary valve
CN107327619B (en) * 2017-01-19 2024-04-12 王大海 Power-assisted valve structure and opening and closing control method
CN112178234B (en) * 2020-11-04 2021-08-17 君品集团有限公司 Flow-adjustable ball valve

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0369867A (en) * 1989-08-09 1991-03-26 Tlv Co Ltd Rotary valve
CN2249337Y (en) * 1996-01-11 1997-03-12 石善涛 Self-balanced floation ball valve
CN2350594Y (en) * 1998-11-17 1999-11-24 董汉杨 Hard seal ball valve
CN1282846A (en) * 1999-07-30 2001-02-07 株式会社山武 Ball valve
CN2407196Y (en) * 1999-11-25 2000-11-22 朱丽艳 Completely balanced self-compensation sealed valve
CN2856628Y (en) * 2005-11-28 2007-01-10 蒋通夫 Hard sealed high pressure ball valve having auto compensation
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