JPH1151228A - Double-seated valve - Google Patents
Double-seated valveInfo
- Publication number
- JPH1151228A JPH1151228A JP21364497A JP21364497A JPH1151228A JP H1151228 A JPH1151228 A JP H1151228A JP 21364497 A JP21364497 A JP 21364497A JP 21364497 A JP21364497 A JP 21364497A JP H1151228 A JPH1151228 A JP H1151228A
- Authority
- JP
- Japan
- Prior art keywords
- flow passage
- outlet
- fluid
- flow path
- double
- 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
Landscapes
- Valve Housings (AREA)
- Lift Valve (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】この発明は、複座型のプラグ
によって流体の流量制御を行う複座弁に関するものであ
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a double-seat valve for controlling a flow rate of a fluid by a double-seat plug.
【０００２】[0002]
【従来の技術】図７は従来の複座型弁装置を示す縦断正
面図であり、同図において、１は弁ケーシングであり、
この弁ケーシング１は弁本体１Ａと上蓋１Ｂと下蓋１Ｃ
とからなり、弁本体１Ａは流体の流入口２と流出口３と
を有している。2. Description of the Related Art FIG. 7 is a longitudinal sectional front view showing a conventional double-seat type valve device, in which 1 is a valve casing,
The valve casing 1 includes a valve body 1A, an upper lid 1B, and a lower lid 1C.
The valve body 1A has an inlet 2 and an outlet 3 for a fluid.
【０００３】４は弁本体１Ａ内に設けられた隔壁であ
り、この隔壁４は、弁ケーシング１内を前記流入口２側
の１次側流路２０と２次側流路３０とに仕切り形成する
と共に、２次側流路３０を前記流出口３で合流する上側
流路３０ａと下側流路３０ｂとに分岐形成している。Reference numeral 4 denotes a partition wall provided in the valve body 1A. The partition wall 4 partitions the inside of the valve casing 1 into a primary flow path 20 and a secondary flow path 30 on the inflow port 2 side. In addition, the secondary flow path 30 is branched and formed into an upper flow path 30a and a lower flow path 30b that join at the outlet 3.
【０００４】４０は前記隔壁４における前記流出口３側
の端壁部、４０ａはその端壁部４０の上辺、４０ｂは前
記端壁部４０の下辺であり、かかる隔壁４は、この上辺
４０ａおよび下辺４０ｂが前記流出口３側から見えない
ようになっている。これによって、前記隔壁４は、この
上辺４０ａが弁ケーシング１における流出口３近傍の上
側壁部１ａに、且つ下辺４０ｂが同じく流出口３近傍の
下側壁部１ｂにそれぞれ接近した構成となっている。Reference numeral 40 denotes an end wall portion of the partition wall 4 on the side of the outlet 3, 40a denotes an upper side of the end wall portion 40, and 40b denotes a lower side of the end wall portion 40. The lower side 40b is not visible from the outlet 3 side. Thereby, the partition wall 4 has a configuration in which the upper side 40a is close to the upper wall 1a near the outlet 3 and the lower side 40b is close to the lower wall 1b near the outlet 3 in the valve casing 1. .
【０００５】５ａは隔壁４に設けられて１次側流路２０
と２次側流路３０の上側流路３０ａとを接続する上部シ
ートリング、５ｂは隔壁４に設けられて１次側流路２０
と２次側流路３０の下側流路３０ｂとを接続する下部シ
ートリング、６は弁ケーシング１内に配置されたプラグ
であり、このプラグ６は、１次側流路２０と上側流路３
０ａとの接続部（上部シートリング５ａ）を開閉制御す
る上側プラグ７と、１次側流路２０と下側流路３０ｂと
の接続部（下部シートリング５ｂ）を開閉制御する下側
プラグ７とを同軸上に有する複座型プラグ構造となって
いる。[0005] 5a is provided on the partition wall 4 and
An upper seat ring 5b connecting the upper side channel 30a of the secondary side channel 30 with the upper side channel 30a
A lower seat ring connecting the lower flow path 30b to the lower flow path 30b; a plug 6 disposed in the valve casing 1; 3
Upper plug 7 that controls the opening and closing of a connection (upper seat ring 5a) with the lower flow path 0a, and lower plug 7 that controls the opening and closing of a connection (lower seat ring 5b) between the primary flow path 20 and the lower flow path 30b. Are coaxial with each other.
【０００６】９は上側プラグ７の上面軸心部に一体突設
された弁軸部、１０はプラグステムであり、このプラグ
ステム１０は駆動部となる操作器（図示せず）に接続さ
れている。Reference numeral 9 denotes a valve stem integrally projecting from an upper surface axis of the upper plug 7, and reference numeral 10 denotes a plug stem. The plug stem 10 is connected to an operating device (not shown) serving as a driving unit. I have.
【０００７】１１は弁ケーシング１のボトム部となる下
蓋１Ｃに設けられた下部ガイド孔、１２は下側プラグ８
に設けられた下部ガイド軸部であり、この下部ガイド軸
部１２は前記下部ガイド孔１１に嵌合されて下側プラグ
８を昇降方向にガイドするようになっている。Reference numeral 11 denotes a lower guide hole provided in a lower lid 1C serving as a bottom portion of the valve casing 1, and 12 denotes a lower plug 8
The lower guide shaft 12 is fitted in the lower guide hole 11 to guide the lower plug 8 in the elevating direction.
【０００８】次に動作について説明する。上側プラグ７
が上部シートリング５ａに、且つ、下側プラグ８が下部
シートリング５ｂにそれぞれ当接した閉弁状態におい
て、操作器でプラグステム１０を介してプラグ６を上昇
させて開弁すると、弁ケーシング１の流入口２から１次
側流路２０に流入した流体は、上部シートリング５ａを
通って上側流路３０ａに向う上向流体と、下部シートリ
ング５ｂを通って下側流路３０ｂに向う下向流体とに分
流される。この際、上向流体は弁ケーシング１の上側壁
部１ａに、且つ、下向流体は弁ケーシング１の下側壁部
１ｂにそれぞれ衝突し、流出口３で合流して該流出口３
から排出される。Next, the operation will be described. Upper plug 7
The valve casing 1 is raised by opening the plug 6 via the plug stem 10 with the operating device in a valve-closed state in which the valve abuts on the upper seat ring 5a and the lower plug 8 abuts on the lower seat ring 5b. The fluid flowing into the primary side flow path 20 from the inflow port 2 through the upper seat ring 5a flows toward the upper flow path 30a and the lower fluid flows through the lower seat ring 5b toward the lower flow path 30b. The fluid is diverted into a directional fluid. At this time, the upward fluid collides with the upper wall portion 1a of the valve casing 1 and the downward fluid collides with the lower wall portion 1b of the valve casing 1, respectively.
Is discharged from
【０００９】[0009]
【発明が解決しようとする課題】従来の複座弁は以上の
ように構成されているので、隔壁４の端壁部４０の上・
下辺４０ａ，４０ｂが流出口３側から見えずに、その上
・下辺４０ａ，４０ｂが弁ケーシング１の流出口３近傍
の上側壁部１ａと下側壁部１ｂとに接近しているため、
プラグ６の開弁時に流出口３に向う流体が弁ケーシング
１の上側壁部１ａと下側壁部１ｂに強く衝突し、弁ケー
シング１が振動することにより、配管接続部のボルト・
ナットが緩んだり、操作器系統が大きく振動して支障を
来すなどの課題があった。また、上述のように流体が弁
ケーシング１の壁部に強く衝突すると、該壁部が抵抗と
なって流体が流れ難くなるため、多くの流量を流したい
場合でも、それができないという課題があった。The conventional double-seat valve is constructed as described above.
Since the lower sides 40a and 40b are not seen from the outlet 3 side, and the upper and lower sides 40a and 40b are close to the upper side wall 1a and the lower side wall 1b near the outlet 3 of the valve casing 1,
When the plug 6 is opened, the fluid directed to the outlet 3 strongly collides with the upper wall portion 1a and the lower wall portion 1b of the valve casing 1, and the valve casing 1 vibrates, so that the bolt
There have been problems such as loosening of the nuts and large vibrations of the actuator system, causing problems. Also, as described above, when the fluid strongly collides with the wall of the valve casing 1, the wall acts as a resistance, making it difficult for the fluid to flow. Was.
【００１０】この発明は上記のような課題を解決するた
めになされたもので、弁ケーシングの壁部に対する流体
の衝突を少なくすることができ、その衝突に起因した弁
ケーシングおよび操作器系統の振動を低減できる複座弁
を得ることを目的とする。SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problems, and can reduce the collision of fluid with respect to a wall of a valve casing. The vibration of the valve casing and the actuator system caused by the collision can be reduced. It is an object of the present invention to obtain a double-seat valve capable of reducing pressure.
【００１１】また、この発明は、流体の上側流量と下側
流量との流量比を変えることができ、その一方を主流、
他方をバランス流とすることができる複座弁を得ること
を目的とする。Further, according to the present invention, the flow rate ratio between the upper flow rate and the lower flow rate of the fluid can be changed.
It is an object of the present invention to obtain a double-seat valve that can make the other flow balanced.
【００１２】[0012]
【課題を解決するための手段】請求項１記載の発明に係
る複座弁は、流体の流入口と流出口を有する弁ケーシン
グと、この弁ケーシング内を前記流入口側の１次側流路
と前記流出口側の２次側流路とに仕切り形成すると共
に、２次側流路を前記流出口で合流する上側流路と下側
流路とに分岐形成している隔壁と、前記１次側流路と２
次側流路の接続部を開閉制御する複座型のプラグとを備
えた複座弁において、前記隔壁を、前記流出口側の端壁
部の少なくとも一辺の一部もしくは全部が前記流出口か
ら見えるように形成したものである。According to a first aspect of the present invention, there is provided a double-seat valve having a valve casing having an inlet and an outlet for a fluid, and a primary flow path in the valve casing on the inlet side. And a partition formed into a secondary flow path on the outlet side and a partition formed by branching the secondary flow path into an upper flow path and a lower flow path which join at the outlet. Secondary channel and 2
In a double-seat valve including a double-seat plug that controls opening and closing of the connection part of the secondary flow path, at least a part or all of at least one side of the end wall on the outlet side is separated from the outlet by the outlet. It is formed so that it can be seen.
【００１３】請求項２記載の発明に係る複座弁は、隔壁
を、流出口側の端壁部の上辺と下辺の少なくとも一辺が
前記流出口から見えるように形成したものである。According to a second aspect of the present invention, in the double-seat valve, the partition wall is formed such that at least one of the upper side and the lower side of the end wall on the outlet side is visible from the outlet.
【００１４】[0014]
【発明の実施の形態】以下、この発明の実施の一形態を
説明する。 実施の形態１．図１はこの発明の実施の形態１による複
座弁を示す縦断側面図、図２は図１の複座弁を流出口側
から見た側面図であり、図７と同一または相当部分には
同一符号を付して重複説明を省略する。この実施の形態
１では、弁ケーシング１内を１次側流路２０と２次側流
路３０とに仕切り形成し、且つ、２次側流路３０を流出
口３で合流する上側流路３０ａと下側流路３０ｂとに分
岐形成している隔壁４において、流出口３側の端壁部４
０の上辺４０ａが流出口３側から見える構成としたもの
である。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below. Embodiment 1 FIG. FIG. 1 is a vertical sectional side view showing a double-seat valve according to Embodiment 1 of the present invention, and FIG. 2 is a side view of the double-seat valve of FIG. 1 as viewed from the outlet side. The same reference numerals are given and duplicate explanations are omitted. In the first embodiment, the interior of the valve casing 1 is partitioned into a primary flow path 20 and a secondary flow path 30, and the upper flow path 30 a where the secondary flow path 30 joins at the outlet 3. End wall 4 on the side of the outlet 3 in the partition wall 4 branched and formed into the lower flow path 30b and the lower flow path 30b.
In this configuration, the upper side 40a of the “0” can be seen from the outlet 3 side.
【００１５】即ち、流出口３から隔壁４を見た際に、図
２に示すように、流出口３の開口上端３ａから該流出口
３の直径方向下方に前記隔壁４の上辺４０ａが位置して
見えるように、その隔壁４を下げたのである。この場
合、流出口３の開口上端３ａから該流出口３の直径の約
１／４まで隔壁４の上辺４０ａが下がった位置とするこ
とが最も好ましく、これによって、上側流路３０ａを流
れる上側流体が流出口３に向って最も流れ易くなり、そ
の上側流体が弁ケーシング１の上側壁部１ａに強く衝突
するようなことがなくなる。That is, when the partition 4 is viewed from the outlet 3, the upper side 40a of the partition 4 is positioned diametrically below the upper end 3a of the outlet 3 as shown in FIG. The partition 4 was lowered so that it could be seen. In this case, it is most preferable that the upper side 40a of the partition wall 4 be lowered from the opening upper end 3a of the outlet 3 to about 1/4 of the diameter of the outlet 3, so that the upper fluid flowing through the upper flow path 30a Flows most easily toward the outlet 3, and the upper fluid does not strongly collide with the upper side wall 1 a of the valve casing 1.
【００１６】次に動作について説明する。プラグ６を上
昇開弁させると、弁ケーシング１の１次側流路２０に流
入した流体は、上部シートリング５ａを通って２次側流
路３０の上側流路３０ａに向う上側流体と、下部シート
リング５ｂを通って下側流路３０ｂに向う下側流体とに
分流される。Next, the operation will be described. When the plug 6 is raised and opened, the fluid flowing into the primary flow path 20 of the valve casing 1 passes through the upper seat ring 5a to the upper flow path 30a of the secondary flow path 30, The fluid is divided into the lower fluid flowing through the seat ring 5b and the lower fluid 30b.
【００１７】ここで、上側流路３０ａを流出口３に向っ
て流れる上側流体は、隔壁４の上辺４０ａが流出口３の
開口上端３ａより下がっているために、弁ケーシング１
の流出口３近傍の上側壁部１ａに強く衝突するようなこ
とがなくなる。このため、流出口３に向う上側流体はス
ムーズな流れとなり、その流量も下側流体に比して多く
なることにより、上側流体を主流とし、且つ下側流体を
バランス流とすることができる。Here, the upper fluid flowing through the upper flow path 30a toward the outflow port 3 flows through the valve casing 1 because the upper side 40a of the partition wall 4 is lower than the upper end 3a of the opening of the outflow port 3.
No longer collides strongly with the upper side wall 1a near the outflow port 3. For this reason, the upper fluid flowing toward the outlet 3 becomes a smooth flow, and its flow rate becomes larger than that of the lower fluid, so that the upper fluid can be the main flow and the lower fluid can be the balanced flow.
【００１８】実施の形態２．図３はこの発明の実施の形
態２による複座弁を示す縦断側面図、図４は図３の複座
弁を流出口側から見た側面図である。この実施の形態２
では、流出口３から隔壁４を見た際に、図４に示すよう
に、上記実施の形態１の場合とは逆に、流出口３の開口
下端３ｂから該流出口３の直径方向上方に前記隔壁４の
下辺４０ｂが位置して見えるように、その隔壁４を上げ
たのである。この場合にあっても、流出口３の開口上端
３ａから該流出口３の直径の約１／４の高さまで隔壁４
の下辺４０ｂが上がった位置とすることが最も好まし
く、これによって、下側流路３０ｂを流れる下側流体が
流出口３に向って最も流れ易くなり、その下側流体が弁
ケーシング１の下側壁部１ｂに強く衝突するようなこと
がなくなる。従って、この実施の形態２の場合、流出口
３に向う下側流体の流れがスムーズとなり、且つ、その
流量が上側流体の流量に比して多くなるため、下側流体
を主流とし、上側流体をバランス流とすることができ
る。Embodiment 2 FIG. FIG. 3 is a longitudinal sectional side view showing a double-seat valve according to Embodiment 2 of the present invention, and FIG. 4 is a side view of the double-seat valve of FIG. 3 as viewed from the outlet side. Embodiment 2
Then, when the partition wall 4 is viewed from the outlet 3, as shown in FIG. 4, contrary to the case of the first embodiment, the partition 3 is diametrically upward from the opening lower end 3b of the outlet 3. The partition wall 4 was raised so that the lower side 40b of the partition wall 4 could be seen. Even in this case, the partition wall 4 extends from the upper end 3a of the outlet 3 to a height of about 1/4 of the diameter of the outlet 3.
It is most preferable that the lower side 40b is located at a raised position, whereby the lower fluid flowing through the lower flow path 30b flows most easily toward the outlet 3, and the lower fluid flows into the lower wall of the valve casing 1. A strong collision with the portion 1b is eliminated. Therefore, in the case of the second embodiment, the flow of the lower fluid toward the outflow port 3 becomes smooth, and the flow rate of the lower fluid becomes larger than the flow rate of the upper fluid. Can be a balanced flow.
【００１９】実施の形態３．図５はこの発明の実施の形
態２による複座弁を示す縦断側面図、図６は図５の複座
弁を流出口側から見た側面図である。この実施の形態３
では、流出口３から隔壁４を見た際に、図６に示すよう
に、隔壁４の上辺４０ａと下辺４０ｂの両方が見えるよ
うに隔壁４を形成したのである。この実施の形態３によ
れば、隔壁４の上辺４０ａと下辺４０ｂとの間の距離が
短くなり、その分、上側流路３０ａと下側流路３０ｂの
それぞれが広くなることにより、上側流体と下側流体の
それぞれの流量を多くすることができると共に、実施の
形態１と実施の形態２のそれぞれの作用効果を同時に期
待できる。Embodiment 3 FIG. 5 is a vertical sectional side view showing a double-seat valve according to Embodiment 2 of the present invention, and FIG. 6 is a side view of the double-seat valve of FIG. 5 as viewed from the outlet side. Embodiment 3
In FIG. 6, when the partition wall 4 is viewed from the outlet 3, the partition wall 4 is formed so that both the upper side 40a and the lower side 40b of the partition wall 4 can be seen, as shown in FIG. According to the third embodiment, the distance between the upper side 40a and the lower side 40b of the partition wall 4 is shortened, and the upper flow path 30a and the lower flow path 30b are correspondingly widened by that amount, so that the upper fluid and The respective flow rates of the lower fluid can be increased, and the respective effects of the first and second embodiments can be simultaneously expected.
【００２０】[0020]
【発明の効果】以上のように、請求項１記載の発明によ
れば、弁ケーシング内で１次側流路と２次側流路を仕切
り形成し、且つ、２次側流路を上側流路と下側流路とに
分岐形成する隔壁を、該隔壁における流出口側の端壁部
の少なくとも一辺の一部もしくは全部が前記流出口から
見えるように形成したので、その流出口から隔壁の辺が
見える側の流路を流れる流体が弁ケーシングの壁部に強
く衝突するようなことがなくなって、流体の流れがスム
ーズとなり、且つ、流体の強い衝突に起因した弁ケーシ
ングの振動および操作器系統の振動を低減でき、このた
め、その振動に起因して配管接続部のボルト・ナットが
緩んだり、操作器系統に支障を来したりすることがなく
なるという効果がある。また、上側流路を流れる流体と
下側流路を流れる流体の流量比を変えることができ、こ
のため、その一方の流体を主流とし、他方の流体をバラ
ンス流とすることができるという効果もある。さらに
は、流出口に向って流れる流体の全流量を従来に比して
多くできるという効果もある。As described above, according to the first aspect of the present invention, the primary flow path and the secondary flow path are partitioned and formed in the valve casing, and the secondary flow path is formed in the upper flow path. Since the partition wall that branches into the passage and the lower flow path is formed so that at least a part or all of at least one side of the end wall on the outlet side in the partition wall is visible from the outlet, the partition wall is formed from the outlet. The fluid flowing through the flow path on the side where the side is visible does not strongly collide with the wall of the valve casing, so that the fluid flow becomes smooth, and the vibration of the valve casing and the actuator caused by the strong collision of the fluid. Vibration of the system can be reduced, and as a result, there is an effect that bolts and nuts at the pipe connection portion are not loosened due to the vibration and do not hinder the operation device system. In addition, the flow rate ratio between the fluid flowing through the upper flow path and the fluid flowing through the lower flow path can be changed, so that one of the fluids can be the main flow and the other fluid can be the balanced flow. is there. Further, there is an effect that the total flow rate of the fluid flowing toward the outlet can be increased as compared with the conventional case.
【００２１】請求項２記載の発明によれば、隔壁の上辺
と下辺の少なくとも一辺が流出口から見えるように前記
隔壁を形成したので、流出口から上辺が見える隔壁にあ
っては、上側流路を流れる上側流体の流量を、下側流路
を流れる流体の流量よりも多くしたい場合に有効とな
り、流出口から下辺が見える隔壁にあっては、上側流体
の流量よりも下側流体の流量を多くしたい場合に有効と
なり、流出口から上辺と下辺の両方が見える隔壁にあっ
ては、従来に比して全流量を多くできるなどの効果があ
る。According to the second aspect of the present invention, the partition wall is formed so that at least one of the upper side and the lower side of the partition wall can be seen from the outlet. This is effective when it is desired to make the flow rate of the upper fluid flowing through the lower flow path larger than the flow rate of the fluid flowing through the lower flow path.In a partition where the lower side can be seen from the outlet, the flow rate of the lower fluid is lower than the flow rate of the upper fluid. This is effective when it is desired to increase the flow rate. In a partition where both the upper side and the lower side can be seen from the outlet, there is an effect that the total flow rate can be increased as compared with the conventional case.
【図１】この発明の実施の形態１による複座弁を示す縦
断側面図である。FIG. 1 is a vertical sectional side view showing a double-seat valve according to Embodiment 1 of the present invention.
【図２】図１の複座弁を流出口側から見た側面図であ
る。FIG. 2 is a side view of the double-seat valve of FIG. 1 as viewed from an outlet side.
【図３】この発明の実施の形態２による複座弁を示す縦
断側面図である。FIG. 3 is a vertical sectional side view showing a double-seat valve according to Embodiment 2 of the present invention.
【図４】図３の複座弁を流出口側から見た側面図であ
る。FIG. 4 is a side view of the double-seat valve of FIG. 3 as viewed from an outlet side.
【図５】この発明の実施の形態３による複座弁を示す縦
断側面図である。FIG. 5 is a vertical sectional side view showing a double-seat valve according to Embodiment 3 of the present invention.
【図６】図５の複座弁を流出口側から見た側面図であ
る。FIG. 6 is a side view of the double-seat valve of FIG. 5 viewed from an outlet side.
【図７】従来の複座弁を示す縦断正面図である。FIG. 7 is a vertical sectional front view showing a conventional double-seat valve.
１ 弁ケーシング ２ 流入口 ３ 流出口 ４ 隔壁 ６ プラグ ７ 上側プラグ ８ 下側プラグ ２０ １次側流路 ３０ ２次側流路 ３０ａ 上側流路 ３０ｂ 下側流路 ４０ 端壁部 ４０ａ 上辺 ４０ｂ 下辺 DESCRIPTION OF SYMBOLS 1 Valve casing 2 Inflow port 3 Outflow port 4 Partition wall 6 Plug 7 Upper plug 8 Lower plug 20 Primary flow path 30 Secondary flow path 30a Upper flow path 30b Lower flow path 40 End wall part 40a Upper side 40b Lower side
Claims (2)
ングと、この弁ケーシング内を前記流入口側の１次側流
路と前記流出口側の２次側流路とに仕切り形成すると共
に、２次側流路を前記流出口で合流する上側流路と下側
流路とに分岐形成している隔壁と、前記１次側流路と２
次側流路の接続部を開閉制御する複座型のプラグとを備
えた複座弁において、前記隔壁は、前記流出口側の端壁
部の少なくとも一辺の一部もしくは全部が前記流出口か
ら見えるように形成したことを特徴とする複座弁。1. A valve casing having a fluid inlet and a fluid outlet, and the interior of the valve casing is partitioned into a primary channel on the inlet side and a secondary channel on the outlet side. A partition that branches and forms a secondary flow path into an upper flow path and a lower flow path that merge at the outflow port;
In a double-seat valve including a double-seat type plug that controls opening and closing of a connection portion of the secondary flow path, at least a part or all of at least one side of the end wall on the outlet side is separated from the outlet. A double-seat valve characterized by being formed to be visible.
の少なくとも一辺が前記流出口から見えるように形成さ
れていることを特徴とする請求項１記載の複座弁。2. The double-seat valve according to claim 1, wherein the partition wall is formed such that at least one of an upper side and a lower side of an end wall portion on the outlet side is visible from the outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21364497A JPH1151228A (en) | 1997-08-07 | 1997-08-07 | Double-seated valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21364497A JPH1151228A (en) | 1997-08-07 | 1997-08-07 | Double-seated valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH1151228A true JPH1151228A (en) | 1999-02-26 |
Family
ID=16642576
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP21364497A Pending JPH1151228A (en) | 1997-08-07 | 1997-08-07 | Double-seated valve |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH1151228A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007071326A (en) * | 2005-09-08 | 2007-03-22 | Saginomiya Seisakusho Inc | Double-seat valve |
| JP2007218354A (en) * | 2006-02-16 | 2007-08-30 | Osaka Gas Co Ltd | High-speed opening/closing double-seat valve device for supplying fluid |
| WO2020095591A1 (en) * | 2018-11-08 | 2020-05-14 | 株式会社不二工機 | Flow path switching valve |
| JP2020076485A (en) * | 2018-11-08 | 2020-05-21 | 株式会社不二工機 | Passage switching valve |
-
1997
- 1997-08-07 JP JP21364497A patent/JPH1151228A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007071326A (en) * | 2005-09-08 | 2007-03-22 | Saginomiya Seisakusho Inc | Double-seat valve |
| JP2007218354A (en) * | 2006-02-16 | 2007-08-30 | Osaka Gas Co Ltd | High-speed opening/closing double-seat valve device for supplying fluid |
| WO2020095591A1 (en) * | 2018-11-08 | 2020-05-14 | 株式会社不二工機 | Flow path switching valve |
| JP2020076485A (en) * | 2018-11-08 | 2020-05-21 | 株式会社不二工機 | Passage switching valve |
| CN112997028A (en) * | 2018-11-08 | 2021-06-18 | 株式会社不二工机 | Flow path switching valve |
| KR20210083344A (en) * | 2018-11-08 | 2021-07-06 | 가부시기가이샤 후지고오키 | flow diverter valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A02 | Decision of refusal |
Effective date: 20040323 Free format text: JAPANESE INTERMEDIATE CODE: A02 |