JP3530962B2 - Directional branch diaphragm valve - Google Patents
Directional branch diaphragm valveInfo
- Publication number
- JP3530962B2 JP3530962B2 JP34574295A JP34574295A JP3530962B2 JP 3530962 B2 JP3530962 B2 JP 3530962B2 JP 34574295 A JP34574295 A JP 34574295A JP 34574295 A JP34574295 A JP 34574295A JP 3530962 B2 JP3530962 B2 JP 3530962B2
- Authority
- JP
- Japan
- Prior art keywords
- diaphragm valve
- passage
- branch
- inlet
- valve
- 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.)
- Expired - Fee Related
Links
- 239000007788 liquid Substances 0.000 claims description 7
- 238000000465 moulding Methods 0.000 claims description 5
- 238000012856 packing Methods 0.000 claims description 5
- 239000012530 fluid Substances 0.000 description 13
- 238000003466 welding Methods 0.000 description 6
- 239000011324 bead Substances 0.000 description 5
- 230000007547 defect Effects 0.000 description 5
- 239000000523 sample Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000007730 finishing process Methods 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 238000011835 investigation Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000005266 casting Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000012488 sample solution Substances 0.000 description 1
Landscapes
- Details Of Valves (AREA)
- Multiple-Way Valves (AREA)
Description
【０００１】[0001]
【発明が属する技術分野】本発明は方向分岐ダイヤフラ
ム弁に係り、その目的は接合された分岐路の内部検査や
内部仕上げ加工或いは使用時に発生した内部欠陥の補修
を容易に行うことができるとともに、分岐路内の流動性
に優れた方向分岐ダイヤフラム弁を得ることにある。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a directional branch diaphragm valve, the purpose of which is to easily perform an internal inspection of a joined branch passage, an internal finishing process, or a repair of an internal defect generated during use. It is to obtain a directional branch diaphragm valve having excellent fluidity in the branch passage.
【０００２】[0002]
【従来の技術】従来の方向分岐ダイヤフラム弁は、例え
ば図７に示すように、第１のダイヤフラム弁（２）の弁
箱（４）から下向きに分岐路（５）を形成しこの分岐路
（５）に図示の如く第２のダイヤフラム弁（３）を配設
してなるものであった。2. Description of the Related Art In a conventional directional branch diaphragm valve, as shown in FIG. 7, for example, a branch passage (5) is formed downward from a valve box (4) of a first diaphragm valve (2), and this branch passage (5) is formed. 5), the second diaphragm valve (3) is arranged as shown in the figure.
【０００３】[0003]
【発明が解決しようとする課題】ところが、上記したよ
うな従来の方向分岐ダイヤフラム弁においては、次のよ
うな課題が存在した。すなわち、第１のダイヤフラム弁
の分岐路と第２のダイヤフラム弁の入口流路の接続にお
いては通常溶接接合を用いるが、溶接接合においてビー
ドを発生させずに接合することには非常な熟練を要し、
実際上は流路内にもビードが発生してしまうことが多
い。従って、溶接後に内面状態の検査や内面の仕上げが
必要となるが、図７のような構造の場合、溶接後にダイ
ヤフラム弁の弁箱に設けられた穴から流路（分岐路）内
を観察したり流路内奥に工具を挿入したりすることが困
難であるため、溶接後の内面検査や内面仕上げを行うこ
とができなかった。However, the conventional directional branch diaphragm valve as described above has the following problems. That is, although welding is usually used to connect the branch passage of the first diaphragm valve and the inlet passage of the second diaphragm valve, it is necessary to have a great deal of skill to join the welding without producing a bead. Then
In practice, beads often occur in the flow path. Therefore, it is necessary to inspect the inner surface condition and finish the inner surface after welding. In the case of the structure shown in Fig. 7, the inside of the flow passage (branch passage) is observed through the hole provided in the valve box of the diaphragm valve after welding. Since it is difficult to insert a tool into the inner part of the flow path or inside the flow path, the inner surface inspection and the inner surface finishing after welding cannot be performed.
【０００４】[0004]
【課題を解決するための手段】本発明は、以下のように
方向分岐ダイヤフラム弁を構成することにより、上記従
来の課題を悉く解決する。請求項１の方向分岐ダイヤフ
ラム弁は、互いに反対方向に向けて開口された入口流路
と出口流路を有し且つこれら入口流路と出口流路とがダ
イヤフラムを介して連通可能とされてなる弁箱と、前記
ダイヤフラムを操作する弁本体とからなる第１のダイヤ
フラム弁と、入口流路と出口流路とがダイヤフラムを介
して連通可能とされ、該ダイヤフラムを操作する弁本体
を備え、取り外し可能な第２のダイヤフラム弁を有し、
前記第１のダイヤフラム弁の弁箱に設けられた入口流路
に対して直角下向きに分岐路を形成し、この分岐路を入
口流路とし且つ該入口流路と直角方向に出口流路を設け
た第２のダイヤフラム弁を分岐路に対して直角方向に配
設してなるとともに、前記分岐路長が前記第１ダイヤフ
ラム弁の入口流路径及び出口流路径の６倍未満とされて
なることを特徴とする液体流通用の方向分岐ダイヤフラ
ム弁である。請求項２の方向分岐ダイヤフラム弁は、前
記第１ダイヤフラム弁からの分岐路と第２ダイヤフラム
弁の入口流路とが溶接により分岐路と該入口流路とが実
質的に第２ダイヤフラム弁の入口流路を形成するように
接続されてなることを特徴とする請求項１記載の方向分
岐ダイヤフラム弁である。SUMMARY OF THE INVENTION The present invention solves the above conventional problems by forming a directional branch diaphragm valve as follows. The directional branch diaphragm valve according to claim 1 has an inlet passage and an outlet passage opened in opposite directions, and the inlet passage and the outlet passage are ducted.
A valve box that can be communicated via an earflam ,
A first diaphragm valve including a valve body for operating the diaphragm, and an inlet flow path and an outlet flow path via a diaphragm.
Valve body for operating the diaphragm
And having a removable second diaphragm valve,
Inlet flow path provided in the valve box of the first diaphragm valve
A second diaphragm valve having a branch passage formed in a downward direction at right angles to the inlet passage and having an outlet passage in a direction perpendicular to the inlet passage is arranged in a direction perpendicular to the branch passage. A directional branch diaphragm valve for liquid flow , wherein the branch channel length is less than 6 times the inlet channel diameter and the outlet channel diameter of the first diaphragm valve. In the directional branch diaphragm valve according to claim 2, the branch passage from the first diaphragm valve and the inlet passage of the second diaphragm valve are welded together to form the branch passage and the inlet passage.
The directional branch diaphragm valve according to claim 1, wherein the directional branch diaphragm valve is qualitatively connected so as to form an inlet passage of the second diaphragm valve .
【０００５】請求項３の方向分岐ダイヤフラム弁は、前
記第１ダイヤフラム弁からの分岐路と第２ダイヤフラム
弁の入口流路とがパッキンを介して分岐路と該入口流路
とが実質的に第２ダイヤフラム弁の入口流路を形成する
ように接続されてなることを特徴とする請求項１記載の
方向分岐ダイヤフラム弁である。請求項４の方向分岐ダ
イヤフラム弁は、前記第１ダイヤフラム弁からの分岐路
と第２ダイヤフラム弁の入口流路とが一体成形により分
岐路と該入口流路とが実質的に第２ダイヤフラム弁の入
口流路を形成するように接続されてなることを特徴とす
る請求項１記載の方向分岐ダイヤフラム弁である。According to a third aspect of the present invention, in a directional branch diaphragm valve, a branch passage from the first diaphragm valve and an inlet passage of the second diaphragm valve are provided with a branch passage and the inlet passage through a packing.
And substantially form the inlet passage of the second diaphragm valve
Connected becomes possible in such a way branch diaphragm valve of claim 1, wherein. In the directional branch diaphragm valve according to claim 4, the branch passage from the first diaphragm valve and the inlet passage of the second diaphragm valve are formed by integral molding .
The branch and the inlet passage are substantially the entry of the second diaphragm valve.
The directional branch diaphragm valve according to claim 1, wherein the directional branch diaphragm valve is connected so as to form a mouth channel .
【０００６】[0006]
【発明の実施の形態】以下、本発明に係る方向分岐ダイ
ヤフラム弁の実施形態について、図面を参照しつつ説明
する。図１及び図２は本発明に係る方向分岐ダイヤフラ
ム弁の実施形態の第１例を示す断面図及び左側面図、図
３及び図４は本発明に係る方向分岐ダイヤフラム弁の実
施形態の第２例を示す断面図及び左側面図、図５及び図
６は本発明に係る方向分岐ダイヤフラム弁の実施形態の
第３例を示す断面図及び左側面図、図７は従来の方向分
岐ダイヤフラム弁の例を示す断面図である。BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of a directional branch diaphragm valve according to the present invention will be described below with reference to the drawings. 1 and 2 are a sectional view and a left side view showing a first example of an embodiment of a directional branch diaphragm valve according to the present invention, and FIGS. 3 and 4 are a second embodiment of a directional branch diaphragm valve according to the present invention. 5 is a sectional view and a left side view showing an example, FIGS. 5 and 6 are sectional views and a left side view showing a third example of the embodiment of the directional branch diaphragm valve according to the present invention, and FIG. 7 is a conventional directional branch diaphragm valve. It is sectional drawing which shows an example.
【０００７】先ず、本発明に係る方向分岐ダイヤフラム
弁の実施形態の第１例を、図１及び図２に基づいて説明
する。この例に係る方向分岐ダイヤフラム弁（１）は、
入口流路（７）と出口流路（８）を有してなる弁箱
（４）と弁本体（９）からなる第１のダイヤフラム弁
（２）の弁箱（４）から下向きに分岐路（５）が形成さ
れており、この分岐路（５）を入口流路とし且つ該入口
流路と直角方向に出口流路（６）を設けた第２のダイヤ
フラム弁（３）が分岐路（５）に対して直角方向に配設
されている。First, a first example of an embodiment of the directional branch diaphragm valve according to the present invention will be described with reference to FIGS. 1 and 2. The directional branch diaphragm valve (1) according to this example is
A branch path downward from the valve box (4) of the first diaphragm valve (2) including the valve box (4) having the inlet flow path (7) and the outlet flow path (8) and the valve body (9). (5) is formed, and the second diaphragm valve (3) having the branch passage (5) as the inlet passage and the outlet passage (6) in the direction perpendicular to the inlet passage is the branch passage ( It is arranged in a direction perpendicular to 5).
【０００８】このような方向分岐ダイヤフラム弁（１）
は、分岐路（５）を弁箱（４）から下向きに設けた第１
ダイヤフラム弁（２）と、入口流路を下向きに設けた第
２ダイヤフラム弁（３）とを溶接接合することにより構
成される。このように溶接接合をした場合、内面に発生
するビードが問題になるが、図１及び図２の構造を有す
る方向分岐ダイヤフラム弁（１）では、第２ダイヤフラ
ム弁（３）を取り外すことにより、接合された分岐路
（５）の内部を容易に検査することができ、また内部に
発生したビードの除去等の仕上げ加工も容易に行うこと
ができる。更に実際に内部に欠陥が発生した場合におい
ての補修も容易に行える。Such a directional branch diaphragm valve (1)
Is the first with the branch passage (5) facing downward from the valve box (4).
The diaphragm valve (2) is welded to the second diaphragm valve (3) having the inlet passage downward. When welding is performed in this way, the bead generated on the inner surface becomes a problem, but in the directional branch diaphragm valve (1) having the structure of FIGS. 1 and 2, by removing the second diaphragm valve (3), The inside of the joined branch path (5) can be easily inspected, and finishing such as removal of the bead generated inside can be easily performed. Further, repair can be easily performed when an internal defect actually occurs.
【０００９】図３及び図４は本発明に係る方向分岐ダイ
ヤフラム弁の実施形態の第２例を示す断面図及び左側面
図である。この例に係る方向分岐ダイヤフラム弁（１）
と前記第１例との相違点は、第１ダイヤフラム弁（２）
からの分岐路（５）と第２ダイヤフラム弁（３）の入口
流路との接続形態である。すなわち、この例に係る方向
分岐ダイヤフラム弁（１）においては、第１ダイヤフラ
ム弁（２）からの分岐路（５）と第２ダイヤフラム弁
（３）の入口流路とが、パッキン（１０）を介してクラ
ンプ（１１）により接続されて構成されている。3 and 4 are a sectional view and a left side view showing a second example of the embodiment of the directional branch diaphragm valve according to the present invention. Directional branch diaphragm valve (1) according to this example
The difference between this and the first example is that the first diaphragm valve (2)
It is a form of connection between the branch passage (5) from and the inlet passage of the second diaphragm valve (3). That is, in the directional branch diaphragm valve (1) according to this example, the branch passage (5) from the first diaphragm valve (2) and the inlet passage of the second diaphragm valve (3) form the packing (10). It is configured to be connected by a clamp (11) through.
【００１０】パッキン（１０）としては、図示例におい
てはガスケットを使用しているが、代わりにＯリングを
用いる構成としてもよい。またクランプ（１１）の形状
については、図示例に限定されるものではなく、第１ダ
イヤフラム弁（２）からの分岐路（５）と第２ダイヤフ
ラム弁（３）の入口流路とを確実且つ容易に接続できれ
ばどのようなものでも採用できる。また、この例に係る
方向分岐ダイヤフラム弁（１）においても、第２ダイヤ
フラム弁（３）を取り外すことにより、分岐路（５）の
内部を容易に検査することが可能であり、実際に内部に
欠陥が発生した場合においての補修も容易に行うことが
できる。Although a gasket is used as the packing (10) in the illustrated example, an O-ring may be used instead. Further, the shape of the clamp (11) is not limited to the illustrated example, and the branch passage (5) from the first diaphragm valve (2) and the inlet passage of the second diaphragm valve (3) can be reliably and securely formed. Anything can be adopted as long as it can be easily connected. Also, in the directional branch diaphragm valve (1) according to this example, it is possible to easily inspect the inside of the branch passage (5) by removing the second diaphragm valve (3), and actually Repair can be easily performed when a defect occurs.
【００１１】図５及び図６は本発明に係る方向分岐ダイ
ヤフラム弁の実施形態の第３例を示す断面図及び左側面
図である。この例に係る方向分岐ダイヤフラム弁（１）
と前記第１例及び第２例との相違点は、第１ダイヤフラ
ム弁（２）からの分岐路（５）と第２ダイヤフラム弁
（３）の入口流路との接続形態である。すなわち、この
例に係る方向分岐ダイヤフラム弁（１）においては、第
１ダイヤフラム弁（２）からの分岐路（５）と第２ダイ
ヤフラム弁（３）の入口流路とが、一体成形により接続
されて構成されている。5 and 6 are a sectional view and a left side view showing a third example of the embodiment of the directional branch diaphragm valve according to the present invention. Directional branch diaphragm valve (1) according to this example
The difference between the first example and the second example is the connection form of the branch passage (5) from the first diaphragm valve (2) and the inlet passage of the second diaphragm valve (3). That is, in the directional branch diaphragm valve (1) according to this example, the branch passage (5) from the first diaphragm valve (2) and the inlet passage of the second diaphragm valve (3) are connected by integral molding. Is configured.
【００１２】この一体成形の方法としては、鋳造、型鍛
造、機械加工等の任意の方法を用いることができる。こ
のように一体成形による接続方法をとることにより、確
実な接続が得られるとともにすっきりとしたコンパクト
な構造になる。また、この例に係る方向分岐ダイヤフラ
ム弁（１）においても、第２ダイヤフラム弁（３）を取
り外すことにより、分岐路（５）の内部を容易に検査す
ることが可能であり、実際に内部に欠陥が発生した場合
においての補修も容易に行うことができる。As the integral molding method, any method such as casting, die forging, and machining can be used. In this way, by adopting the connection method by integral molding, a reliable connection can be obtained and a clean and compact structure can be obtained. Also, in the directional branch diaphragm valve (1) according to this example, it is possible to easily inspect the inside of the branch passage (5) by removing the second diaphragm valve (3), and actually Repair can be easily performed when a defect occurs.
【００１３】尚、上記例においてはいずれも、分岐ダイ
ヤフラム弁の分岐路（５）の長さ（Ｌ）は第１ダイヤフ
ラム弁（２）の入口流路径（Ｄ１）及び出口流路径（Ｄ
２）の６倍未満とされている。これは、分岐路（５）長
さが第１ダイヤフラム弁（２）の入口流路径及び出口流
路径の６倍以上となると、分岐路（５）の部分で流体の
流動性が悪くなり分岐路（５）内で流体が澱んでしまう
からである。すなわち、例えば化学タンク等からの配管
に、分岐ダイヤフラム弁の第１ダイヤフラム弁（２）の
入口流路を接続し、配管内を流れる流体を第２ダイヤフ
ラム弁（３）を開放してサンプル液として経時的に取り
出して流体成分の経時的な調査を行おうとしても、流体
が分岐路（５）内で澱んでしまうと管を流れる流体の成
分とサンプル液として取り出される流体の成分が異なっ
てしまい正確な成分調査を行うことができない。これに
対し、本発明に係る分岐ダイヤフラム弁では、分岐路
（５）長さは第１ダイヤフラム弁（２）の入口流路径及
び出口流路径の６倍未満とされているため、流体が分岐
路（５）内で澱むことがなく正確な調査を行うことがで
きる。In each of the above examples, the length (L) of the branch passage (5) of the branch diaphragm valve is such that the inlet passage diameter (D1) and the outlet passage diameter (D ) of the first diaphragm valve (2).
It is less than 6 times that of 2) . This is because when the length of the branch passage (5) is 6 times or more the inlet flow passage diameter and the outlet flow passage diameter of the first diaphragm valve (2), the fluidity of the fluid is deteriorated in the branch passage (5) portion. This is because the fluid will settle in (5). That is, for example, the inlet channel of the first diaphragm valve (2) of the branch diaphragm valve is connected to a pipe from a chemical tank or the like, and the fluid flowing in the pipe is used as a sample liquid by opening the second diaphragm valve (3). Even if an attempt is made to take out the fluid components over time and investigate the fluid components over time, if the fluid settles in the branch passage (5), the fluid components flowing through the tube and the fluid components extracted as the sample liquid will be different. It is not possible to conduct an accurate ingredient survey. On the other hand, in the branch diaphragm valve according to the present invention, since the length of the branch passage (5) is less than 6 times the inlet passage diameter and the outlet passage diameter of the first diaphragm valve (2), the fluid is branched. (5) Accurate investigation can be performed without stagnation.
【００１４】なお、本発明に係る分岐ダイヤフラム弁に
おいて使用されるダイヤフラム弁は図示例の構造に限定
されるものではなく、例えば空気作動式のダイヤフラム
弁等を用いることもできる。The diaphragm valve used in the branch diaphragm valve according to the present invention is not limited to the structure shown in the drawing, and for example, an air-operated diaphragm valve or the like may be used.
【００１５】[0015]
【発明の効果】以上説明したように、請求項１に係る発
明は、互いに反対方向に向けて開口された入口流路と出
口流路を有し且つこれら入口流路と出口流路とがダイヤ
フラムを介して連通可能とされてなる弁箱と、前記ダイ
ヤフラムを操作する弁本体とからなる第１のダイヤフラ
ム弁と、入口流路と出口流路とがダイヤフラムを介して
連通可能とされ、該ダイヤフラムを操作する弁本体を備
え、取り外し可能な第２のダイヤフラム弁を有し、前記
第１のダイヤフラム弁の弁箱に設けられた入口流路に対
して直角下向きに分岐路を形成し、この分岐路を入口流
路とし且つ該入口流路と直角方向に出口流路を設けた第
２のダイヤフラム弁を分岐路に対して直角方向に配設し
てなるとともに、前記分岐路長が前記第１ダイヤフラム
弁の入口流路径及び出口流路径の６倍未満とされてなる
ことを特徴とする液体流通用の方向分岐ダイヤフラム弁
であるから、以下に述べる効果を奏する。すなわち、第
２のダイヤフラム弁を外すことにより、接合された分岐
路の内部を容易に検査することができるとともに、内部
に発生したビードの除去等の仕上げ加工も容易に行うこ
とができる。しかも更に実際に内部に欠陥が発生した場
合においての補修も容易に行うことができる。また、分
岐路内で流体の澱みが発生することがないため、例えば
化学タンク等からの配管に、分岐ダイヤフラム弁の第１
ダイヤフラム弁の入口流路を接続し、配管内を流れる流
体を第２ダイヤフラム弁を開放してサンプル液として経
時的に取り出して流体成分の経時的な調査を行おうとし
た場合でも、管を流れる流体の成分とサンプル液として
取り出される流体の成分が異なることがなく、正確な成
分調査を行うことができる。As described above, the invention according to claim 1 has an inlet passage and an outlet passage opened in opposite directions, and these inlet passage and the outlet passage are diamonds.
A valve box that can be communicated via a flam and the die
A first diaphragm valve composed of a valve body for operating a diaphragm, and an inlet flow path and an outlet flow path via a diaphragm.
Provided with a valve body that allows communication and operates the diaphragm
And has a removable second diaphragm valve, and is connected to the inlet passage provided in the valve box of the first diaphragm valve .
And a branch passage is formed in a downward direction at a right angle, and a second diaphragm valve having the branch passage as an inlet passage and an outlet passage in a direction perpendicular to the inlet passage is disposed in the right direction with respect to the branch passage. In addition, since the branch passage length is less than 6 times the inlet flow passage diameter and the outlet flow passage diameter of the first diaphragm valve, it is a directional branch diaphragm valve for liquid circulation. Has the effect described. That is, by removing the second diaphragm valve, the inside of the joined branch passage can be easily inspected, and the finishing process such as removal of the bead generated inside can be easily performed. Moreover, it is possible to easily perform repair when an internal defect actually occurs. Further, since no fluid stagnation occurs in the branch passage, for example, in the pipe from the chemical tank or the like, the first part of the branch diaphragm valve is installed.
Even if the fluid flowing through the pipe is connected to the inlet passage of the diaphragm valve and the second diaphragm valve is opened to take out the sample liquid as a sample solution over time to investigate the fluid components over time, An accurate component investigation can be performed without the difference between the component and the component of the fluid taken out as the sample liquid.
【００１６】請求項２に係る発明は、前記第１ダイヤフ
ラム弁からの分岐路と第２ダイヤフラム弁の入口流路と
が溶接により分岐路と該入口流路とが実質的に第２ダイ
ヤフラム弁の入口流路を形成するように接続されてなる
ことを特徴とする請求項１記載の方向分岐ダイヤフラム
弁であるから、上記効果に加えて確実な接続を容易に得
ることができるという優れた効果を奏する。According to a second aspect of the present invention, the branch passage from the first diaphragm valve and the inlet passage of the second diaphragm valve are welded together so that the branch passage and the inlet passage are substantially in the second die.
The directional branch diaphragm valve according to claim 1, wherein the divergent diaphragm valve is connected so as to form an inlet flow path of the yaflam valve . Therefore, in addition to the above effects, a reliable connection can be easily obtained. Produce the effect.
【００１７】請求項３に係る発明は、前記第１ダイヤフ
ラム弁からの分岐路と第２ダイヤフラム弁の入口流路と
がパッキンを介して分岐路と該入口流路とが実質的に第
２ダイヤフラム弁の入口流路を形成するように接続され
てなることを特徴とする請求項１記載の方向分岐ダイヤ
フラム弁であるから、請求項１の発明の効果に加えて、
分岐路の長さを調節して接続することができるという優
れた効果を奏する。According to a third aspect of the present invention, the branch passage from the first diaphragm valve and the inlet passage of the second diaphragm valve have a branch passage and the inlet passage substantially through a packing .
2. The directional branch diaphragm valve according to claim 1, wherein the directional branch diaphragm valve is connected so as to form an inlet passage of the two-diaphragm valve .
This has an excellent effect that the length of the branch path can be adjusted for connection.
【００１８】請求項４に係る発明は、前記第１ダイヤフ
ラム弁からの分岐路と第２ダイヤフラム弁の入口流路と
が一体成形により分岐路と該入口流路とが実質的に第２
ダイヤフラム弁の入口流路を形成するように接続されて
なることを特徴とする請求項１記載の方向分岐ダイヤフ
ラム弁であるから、請求項１の発明の効果に加えて、確
実な接続が得られるとともにすっきりとしたコンパクト
な構造になるという優れた効果を得ることができる。According to a fourth aspect of the present invention, the branch passage from the first diaphragm valve and the inlet passage of the second diaphragm valve are integrally molded so that the branch passage and the inlet passage are substantially second.
The directional branch diaphragm valve according to claim 1, wherein the diaphragm valve is connected so as to form an inlet passage of the diaphragm valve. Therefore, in addition to the effect of the invention of claim 1, a reliable connection can be obtained. At the same time, it is possible to obtain an excellent effect that the structure becomes neat and compact.
【図１】本発明に係る方向分岐ダイヤフラム弁の実施形
態の第１例を示す断面図であって、図２のＡ−Ａ線断面
図である。 1 is a sectional view showing a first example of an embodiment of a directional branch diaphragm valve according to the present invention, which is a sectional view taken along the line AA of FIG.
It is a figure.
【図２】本発明に係る方向分岐ダイヤフラム弁の実施形
態の第１例を示す左側面図である。FIG. 2 is a left side view showing the first example of the embodiment of the directional branch diaphragm valve according to the present invention.
【図３】本発明に係る方向分岐ダイヤフラム弁の実施形
態の第２例を示す断面図であって、図４のＡ−Ａ線断面
図である。 3 is a sectional view showing a second example of the embodiment of the directional branch diaphragm valve according to the present invention, and is a sectional view taken along line AA of FIG.
It is a figure.
【図４】本発明に係る方向分岐ダイヤフラム弁の実施形
態の第２例を示す左側面図である。FIG. 4 is a left side view showing a second example of the embodiment of the directional branch diaphragm valve according to the present invention.
【図５】本発明に係る方向分岐ダイヤフラム弁の実施形
態の第３例を示す断面図であって、図６のＡ−Ａ線断面
図である。 5 is a sectional view showing a third example of the embodiment of the directional branch diaphragm valve according to the present invention, which is a sectional view taken along line AA of FIG.
It is a figure.
【図６】本発明に係る方向分岐ダイヤフラム弁の実施形
態の第３例を示す左側面図である。FIG. 6 is a left side view showing a third example of the embodiment of the directional branch diaphragm valve according to the present invention.
【図７】従来の方向分岐ダイヤフラム弁の例を示す断面
図である。FIG. 7 is a sectional view showing an example of a conventional directional branch diaphragm valve.
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 平５−272648（ＪＰ，Ａ) 特開 平５−106749（ＪＰ，Ａ) 実開 昭63−139368（ＪＰ，Ｕ) 実開 平６−71979（ＪＰ，Ｕ) 実開 平６−1946（ＪＰ，Ｕ) (58)調査した分野(Int.Cl.7，ＤＢ名) F16K 7/00 - 7/18 F16K 11/00 - 11/24 ─────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-5-272648 (JP, A) JP-A-5-106749 (JP, A) Actually open 63-139368 (JP, U) Actually open 6- 71979 (JP, U) Actual Kaihei 6-1946 (JP, U) (58) Fields investigated (Int.Cl. 7 , DB name) F16K 7/ 00-7/18 F16K 11/00-11/24
Claims (4)
流路と出口流路を有し且つこれら入口流路と出口流路と
がダイヤフラムを介して連通可能とされてなる弁箱と、
前記ダイヤフラムを操作する弁本体とからなる第１のダ
イヤフラム弁と、入口流路と出口流路とがダイヤフラム
を介して連通可能とされ、該ダイヤフラムを操作する弁
本体を備え、取り外し可能な第２のダイヤフラム弁を有
し、前記第１のダイヤフラム弁の弁箱に設けられた入口
流路に対して直角下向きに分岐路を形成し、この分岐路
を入口流路とし且つ該入口流路と直角方向に出口流路を
設けた第２のダイヤフラム弁を分岐路に対して直角方向
に配設してなるとともに、前記分岐路長が前記第１ダイ
ヤフラム弁の入口流路径及び出口流路径の６倍未満とさ
れてなることを特徴とする液体流通用の方向分岐ダイヤ
フラム弁。1. An inlet flow path and an outlet flow path, which are opened in opposite directions, and which have the inlet flow path and the outlet flow path.
And a valve box that can communicate with each other via a diaphragm ,
A first diaphragm valve including a valve body for operating the diaphragm, and a diaphragm having an inlet passage and an outlet passage.
Valve that can be communicated via the
Has a main body and has a removable second diaphragm valve
The inlet provided in the valve box of the first diaphragm valve
A second diaphragm valve having a branch passage formed at a right angle downward with respect to the flow passage, the branch passage serving as an inlet flow passage, and an outlet flow passage provided in a direction perpendicular to the inlet flow passage is provided in a direction perpendicular to the branch passage. A directional branch diaphragm valve for liquid circulation , wherein the branch passage length is less than 6 times the inlet passage diameter and the outlet passage diameter of the first diaphragm valve.
第２ダイヤフラム弁の入口流路とが溶接により分岐路と
該入口流路とが実質的に第２ダイヤフラム弁の入口流路
を形成するように接続されてなることを特徴とする請求
項１記載の方向分岐ダイヤフラム弁。2. A branch passage from the first diaphragm valve and an inlet passage of the second diaphragm valve are welded to form a branch passage.
The inlet passage is substantially the inlet passage of the second diaphragm valve
The directional branch diaphragm valve according to claim 1, wherein the directional branch diaphragm valve is connected so as to form a valve.
第２ダイヤフラム弁の入口流路とがパッキンを介して分
岐路と該入口流路とが実質的に第２ダイヤフラム弁の入
口流路を形成するように接続されてなることを特徴とす
る請求項１記載の方向分岐ダイヤフラム弁。3. A through the inlet passage and the packing of the branch passage and the second diaphragm valve from the first diaphragm valve min
The branch and the inlet passage are substantially the entry of the second diaphragm valve.
The directional branch diaphragm valve according to claim 1, wherein the directional branch diaphragm valve is connected so as to form an opening channel .
第２ダイヤフラム弁の入口流路とが一体成形により分岐
路と該入口流路とが実質的に第２ダイヤフラム弁の入口
流路を形成するように接続されてなることを特徴とする
請求項１記載の方向分岐ダイヤフラム弁。4. The branch passage from the first diaphragm valve and the inlet passage of the second diaphragm valve are branched by integral molding.
The passage and the inlet passage are substantially the inlet of the second diaphragm valve
The directional branch diaphragm valve according to claim 1, wherein the directional branch diaphragm valve is connected so as to form a flow path .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP34574295A JP3530962B2 (en) | 1995-12-08 | 1995-12-08 | Directional branch diaphragm valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP34574295A JP3530962B2 (en) | 1995-12-08 | 1995-12-08 | Directional branch diaphragm valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH09159034A JPH09159034A (en) | 1997-06-17 |
| JP3530962B2 true JP3530962B2 (en) | 2004-05-24 |
Family
ID=18378668
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP34574295A Expired - Fee Related JP3530962B2 (en) | 1995-12-08 | 1995-12-08 | Directional branch diaphragm valve |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3530962B2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11141713A (en) * | 1997-09-05 | 1999-05-28 | Tetra Laval Holdings & Finance Sa | Sterile valve assembly |
| JP2001355750A (en) * | 2000-06-13 | 2001-12-26 | Fujikin Inc | Bifurcated fluid controller |
| JP4755483B2 (en) * | 2005-10-31 | 2011-08-24 | 日本ダイヤバルブ株式会社 | Diaphragm valve |
| JP7375264B2 (en) * | 2019-06-28 | 2023-11-08 | トーステ株式会社 | Branch flow switching valve |
-
1995
- 1995-12-08 JP JP34574295A patent/JP3530962B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH09159034A (en) | 1997-06-17 |
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