JP2536825Y2 - Butterfly valve - Google Patents
Butterfly valveInfo
- Publication number
- JP2536825Y2 JP2536825Y2 JP1991089835U JP8983591U JP2536825Y2 JP 2536825 Y2 JP2536825 Y2 JP 2536825Y2 JP 1991089835 U JP1991089835 U JP 1991089835U JP 8983591 U JP8983591 U JP 8983591U JP 2536825 Y2 JP2536825 Y2 JP 2536825Y2
- Authority
- JP
- Japan
- Prior art keywords
- valve
- hole
- valve plate
- rotating shaft
- valve body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Landscapes
- Details Of Valves (AREA)
- Lift Valve (AREA)
Description
【0001】[0001]
【産業上の利用分野】本考案は、流路に直交して配置さ
れた回転軸を回転することにより、この回転軸に設けた
弁板で前記流路を開閉するバタフライ弁に関するもので
ある。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a butterfly valve which opens and closes a flow passage by a valve plate provided on the rotation shaft by rotating a rotation shaft arranged orthogonally to the flow passage.
【0002】[0002]
【従来の技術】従来、前記バタフライ弁として図4に示
すものが知られている。このバタフライ弁20では、円
筒状弁本体21の貫通孔22から挿入された回転軸23
が、この貫通孔22に設けた軸受部材(図示せず)と貫
通孔22の対向部に設けた軸受凹部24とで回転可能に
支持され、回転軸23の弁本体内部に位置する部分に弁
板25がボルト26,26で固定されている。2. Description of the Related Art FIG. 4 shows a conventional butterfly valve. In this butterfly valve 20, a rotary shaft 23 inserted through a through hole 22 of a cylindrical valve body 21 is provided.
Is rotatably supported by a bearing member (not shown) provided in the through hole 22 and a bearing recess 24 provided in a portion facing the through hole 22, and a valve is provided on a portion of the rotary shaft 23 located inside the valve body. The plate 25 is fixed by bolts 26,26.
【0003】前記バタフライ弁20は、図示するよう
に、両端に配管27,27が接続され、回転軸23に設
けた図示しないハンドルを操作することによって弁板2
5の方向を切り換え、配管27,27及び弁本体21の
内部を流れる流体の流量を調整することができる。[0003] As shown in the figure, the butterfly valve 20 has pipes 27, 27 connected to both ends thereof, and operates a handle (not shown) provided on the rotating shaft 23 to operate the valve plate 2.
By switching the direction of 5, the flow rate of the fluid flowing through the pipes 27, 27 and the inside of the valve body 21 can be adjusted.
【0004】[0004]
【考案が解決しようとする課題】しかしながら、前記バ
タフライ弁20の弁板25や回転軸23を点検、修理、
取り替えなどするときは、バタフライ弁20全体を配管
27,27から取り外さなければならないという問題点
を有していた。特に、排気ガス配管や熱風ダクトに設け
たバタフライ弁20では、排気ガス等に含まれる有害物
質により弁板等の損傷が激しいために弁板等を交換する
ことが必須で、しかも、配管の周囲を断熱材で被覆して
いるものでは、バタフライ弁20を囲む断熱材をすべて
除去する必要があるため、点検等の作業に要する労力、
経費は莫大なものであった。However, the valve plate 25 and the rotating shaft 23 of the butterfly valve 20 are inspected, repaired,
When replacing the butterfly valve, there is a problem that the entire butterfly valve 20 must be removed from the pipes 27, 27. Particularly, in the butterfly valve 20 provided in an exhaust gas pipe or a hot air duct, it is necessary to replace the valve plate or the like because harmful substances contained in the exhaust gas or the like cause severe damage to the valve plate or the like. Is covered with a heat insulating material, it is necessary to remove all the heat insulating material surrounding the butterfly valve 20, so that the labor required for work such as inspection,
The costs were enormous.
【0005】また、弁板25、回転軸23を新たな部品
と交換する場合、一度解体されたこれらの部材を精度よ
く組み立てるのは容易なことではなかった。すなわち、
組立は、回転軸23を貫通孔22に挿入し、弁本体21
の一端開口から挿入した弁板25をボルト26,26で
固定するわけであるが、狭い流路内で弁板25の位置を
正確に保持し、流路内に差し込んだ工具の先端を見なが
らボルト26,26を締める作業は容易でなく、弁板2
5の取り付け位置に誤差を生じることは避けられないこ
とであった。そのため、弁板25で流路を閉鎖しても、
弁本体21と弁板25との間に隙間を生じて完全な締め
きり性が得られず、無駄にエネルギを消費することとな
っていた。Further, when replacing the valve plate 25 and the rotating shaft 23 with new parts, it is not easy to assemble these members once disassembled with high accuracy. That is,
Assembling is performed by inserting the rotating shaft 23 into the through hole 22 and
The valve plate 25 inserted through the one end opening is fixed by bolts 26, 26. The position of the valve plate 25 is accurately held in a narrow flow path, and the tip of a tool inserted into the flow path is viewed. It is not easy to tighten the bolts 26, 26, and the valve plate 2
It was inevitable that an error would occur in the mounting position of No. 5. Therefore, even if the flow path is closed by the valve plate 25,
A gap is formed between the valve main body 21 and the valve plate 25, so that complete tightness cannot be obtained and energy is wasted.
【0006】さらに、弁本体21の長さは、弁本体21
の端部から弁板25を挿入し、かつ、これを回転軸23
にボルト26,26で固定する作業が可能な長さでなけ
ればならない。このため、弁本体21の形状に多くの制
約を受け、必ずしも現場の要求に沿った製品を製作する
ことができないという欠点があった。Further, the length of the valve body 21 is
The valve plate 25 is inserted from the end of the
It must be of a length that allows the work to be fixed with the bolts 26, 26 on the front. For this reason, there are many restrictions on the shape of the valve main body 21, and there is a drawback that it is not always possible to manufacture a product that meets the requirements of the site.
【0007】[0007]
【課題を解決するための手段】本考案は、前記問題点を
解決するためになされたもので、バタフライ弁を、管軸
方向に延在する長孔を備えた筒状の弁本体と、前記長孔
が位置する部分の流路断面と略同一の外形を有する弁板
の中心線上に回転軸を設け、前記長孔を介して前記弁板
を弁本体の流路に挿入すると共に、前記回転軸の一部を
前記長孔を介して外部に突出させるようにした仕切り部
材と、貫通孔を有し、この貫通孔に前記弁本体から突出
した回転軸を挿入し、前記長孔を開閉可能に閉鎖した蓋
部材と、で構成したものである。SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-mentioned problems, and comprises a butterfly valve having a cylindrical valve body having an elongated hole extending in a pipe axis direction. A rotary shaft is provided on the center line of a valve plate having substantially the same outer shape as the flow path cross section of the portion where the long hole is located, and the valve plate is inserted into the flow path of the valve body through the long hole and the rotation is performed. A partition member having a part of the shaft protruding outside through the long hole, and a through-hole, and a rotary shaft protruding from the valve body is inserted into this through-hole, and the long hole can be opened and closed. And a closed lid member.
【0008】[0008]
【実施例】以下、図1,2を参照して本考案の一実施例
について説明する。図に示すバタフライ弁1において、
弁本体2は両端を開放した円筒体からなり、上部に管軸
方向に沿って長孔4が形成され、これに対向する下部内
面に軸受凹部5が形成されており、前記長孔4は下記す
る仕切り部材10を挿入可能な大きさとしてある。蓋部
材6は、前記弁本体1の外部に設けた蓋本体7と、この
蓋本体7の凹状下面に一体的に設けた前記長孔4と略同
一形状の嵌合部8とからなり、中央に貫通孔9が形成さ
れている。前記仕切り部材10は、回転軸11と弁板1
4とからなり、回転軸11は、その下部外周面を軸方向
に沿って切除することにより弁板取付部12が形成さ
れ、この弁板取付部12にねじ孔13,13が形成され
ている。一方、弁板14は、長孔4が位置する箇所の流
路断面と略同一の外形寸法を有する円板で、中心線上に
ボルト貫通用の孔15,15が設けてある。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. In the butterfly valve 1 shown in the figure,
The valve body 2 is formed of a cylindrical body having both ends open. An elongated hole 4 is formed in the upper part along the pipe axis direction, and a bearing recess 5 is formed in a lower inner surface facing the elongated hole 4. The partition member 10 has a size that can be inserted. The cover member 6 includes a cover body 7 provided outside the valve body 1 and a fitting portion 8 having substantially the same shape as the elongated hole 4 provided integrally on the concave lower surface of the cover body 7. Is formed with a through hole 9. The partition member 10 includes a rotating shaft 11 and a valve plate 1.
The valve shaft mounting portion 12 is formed by cutting the lower outer peripheral surface of the rotating shaft 11 along the axial direction, and the valve plate mounting portion 12 has screw holes 13, 13 formed therein. . On the other hand, the valve plate 14 is a disk having substantially the same outer dimensions as the cross section of the flow passage at the position where the long hole 4 is located, and has holes 15 for bolt penetration on the center line.
【0009】前記バタフライ弁1を組み立てる場合、ま
ず、弁板14を回転軸11の弁板取付部12に位置決め
し、貫通孔15,15に挿通したボルト16,16を回
転軸11のねじ孔13,13に螺合して固定する。この
とき、ボルト締め作業は、回転軸11と弁板14を手元
に置いて行なうことができるので、回転軸11に対して
弁板14は精度良く位置決めされて固定される。次に、
このようにして一体化した回転軸11と弁板14を長孔
4を介して弁本体2の流路3に挿入し、回転軸11の下
端部を軸受凹部5に挿入する。最後に、蓋部材6の貫通
孔9に回転軸11をその上端側から挿通し、蓋部材6の
嵌合部8を長孔4に嵌合すると共に、蓋本体7と弁本体
2との間に適宜パッキンを挾持し、蓋部材6と弁本体2
をボルト17で固定する。また、蓋部材6の貫通孔9と
回転軸11との間は、周知のシール方法でシールする。
さらに、回転軸11の上部に図示しないハンドルを取り
付ける。When assembling the butterfly valve 1, first, the valve plate 14 is positioned on the valve plate mounting portion 12 of the rotating shaft 11, and the bolts 16, 16 inserted into the through holes 15, 15 are screwed into the screw holes 13 of the rotating shaft 11. , 13 and fixed. At this time, since the bolting operation can be performed with the rotating shaft 11 and the valve plate 14 at hand, the valve plate 14 is accurately positioned and fixed with respect to the rotating shaft 11. next,
The rotating shaft 11 and the valve plate 14 integrated in this manner are inserted into the flow path 3 of the valve body 2 through the long holes 4, and the lower end of the rotating shaft 11 is inserted into the bearing recess 5. Finally, the rotary shaft 11 is inserted into the through hole 9 of the lid member 6 from the upper end side, the fitting portion 8 of the lid member 6 is fitted into the elongated hole 4, and the gap between the lid body 7 and the valve body 2 is formed. The packing is properly held between the cover member 6 and the valve body 2.
Is fixed with bolts 17. The space between the through hole 9 of the cover member 6 and the rotating shaft 11 is sealed by a known sealing method.
Further, a handle (not shown) is attached to the upper part of the rotating shaft 11.
【0010】以上のようにして組み立てられたバタフラ
イ弁1は、配管18,18の間に接続される。また、配
管18が高温または低温流体を搬送するものであれば、
配管18およびバタフライ弁1の周囲が断熱材で保護さ
れる。そして、ハンドルを持って回転軸11を回動する
ことにより弁板14で流路3が開閉され、配管18,1
8を流れる流体の流量調整が行われる。The butterfly valve 1 assembled as described above is connected between the pipes 18. Also, if the pipe 18 carries a high or low temperature fluid,
The piping 18 and the periphery of the butterfly valve 1 are protected by a heat insulating material. By rotating the rotating shaft 11 with the handle, the flow path 3 is opened and closed by the valve plate 14, and the pipes 18 and 1 are opened.
The flow rate of the fluid flowing through 8 is adjusted.
【0011】前記回転軸11,弁板14を点検、交換、
修理する場合、ボルト17を外して弁本体2から蓋部材
6を取り外す。また、配管18,18およびバタフライ
弁1の周囲が断熱材で被覆されているときは、蓋部材6
を覆う断熱材だけを除去する。すなわち、バタフライ弁
1を囲むすべての断熱材を除去する必要はなく、一部分
の断熱材を除去するだけで足りる。次に、回転軸11を
回転して弁板14を長孔4と平行に位置させ、回転軸1
1を持ってこれを上方に持ち上げ、弁板14を長孔4を
介して外部に取り出す。そして、回転軸11、弁板14
の点検、交換、修理等が終了すると、再び組立時と同様
に、回転軸11、弁板14、および蓋部材6を弁本体2
に組み立て、さらに断熱材で蓋部材6を被覆して元の使
用状態に戻す。Inspection and replacement of the rotating shaft 11 and the valve plate 14,
When repairing, the bolt 17 is removed and the lid member 6 is removed from the valve body 2. When the pipes 18 and 18 and the periphery of the butterfly valve 1 are covered with a heat insulating material, the cover member 6
Remove only the insulation covering the. That is, it is not necessary to remove all the heat insulating materials surrounding the butterfly valve 1, but it is sufficient to remove only a part of the heat insulating materials. Next, the rotating shaft 11 is rotated to position the valve plate 14 in parallel with the elongated hole 4, and the rotating shaft 1 is rotated.
1 and lift it upward, and take out the valve plate 14 to the outside through the elongated hole 4. Then, the rotating shaft 11, the valve plate 14
When the inspection, replacement, repair, and the like are completed, the rotating shaft 11, the valve plate 14, and the lid member 6 are reattached to the valve body 2 in the same manner as in the assembly.
And cover the lid member 6 with a heat insulating material to return to the original use state.
【0012】バタフライ弁の第2実施例について図3を
参照して説明する。このバタフライ弁1aにおいて、前
記弁本体2はカバー部材30を備えている。このカバー
部材30は、底部を開放した略箱型のもので、周囲の側
壁下端部が弁本体2の外周形状に一致させてあり、天井
部に前記長孔4と略同一の大きさを有する長孔31が形
成してある。このカバー部材30は、長孔31を弁本体
2の長孔4の上部に位置させ、下端部を弁本体2に当接
し、その当接部を溶接して弁本体2に一体化されてい
る。蓋部材60は長方形の板材からなり、中央に貫通孔
61が形成されている。仕切り部材10は、前記実施例
のものと同一である。A second embodiment of the butterfly valve will be described with reference to FIG. In this butterfly valve 1a, the valve body 2 includes a cover member 30. The cover member 30 has a substantially box shape with an open bottom, and a lower end of a surrounding side wall conforms to an outer peripheral shape of the valve body 2, and has a ceiling having substantially the same size as the elongated hole 4. A long hole 31 is formed. The cover member 30 has the long hole 31 positioned above the long hole 4 of the valve body 2, abuts the lower end of the cover member 30 on the valve body 2, and welds the contact portion to the valve body 2 to be integrated with the valve body 2. . The lid member 60 is made of a rectangular plate, and has a through hole 61 formed in the center. The partition member 10 is the same as that of the above embodiment.
【0013】前記構成を有するバタフライ弁1aでは、
仕切り部材10を長孔31,4を介して流路3に挿入
し、長孔31から突出する回転軸11を蓋部材60の貫
通孔61に挿通する。また、蓋部材60の四隅に設けた
貫通孔62を介してカバー部材30のねじ孔32に図示
しないボルトを螺合すると共に、回転軸11と貫通孔6
1との隙間を適宜シールして組み立て、前記実施例のバ
タフライ弁1と同様に配管の間に接続される。また、前
記バタフライ弁1aから仕切り部材10を取り出す場
合、弁板14を流路に平行に位置させ、ボルトを緩めて
蓋部材60をカバー部材30から取り除き、回転軸11
を持って引き上げる。In the butterfly valve 1a having the above configuration,
The partition member 10 is inserted into the flow path 3 via the long holes 31 and 4, and the rotating shaft 11 protruding from the long hole 31 is inserted into the through hole 61 of the lid member 60. In addition, a bolt (not shown) is screwed into the screw hole 32 of the cover member 30 through through holes 62 provided at four corners of the lid member 60, and the rotary shaft 11 and the through hole 6 are screwed.
1 and is appropriately sealed, assembled, and connected between the pipes in the same manner as the butterfly valve 1 of the above embodiment. When taking out the partition member 10 from the butterfly valve 1a, the valve plate 14 is positioned parallel to the flow path, the bolt is loosened, the cover member 60 is removed from the cover member 30, and the rotating shaft 11
And pull it up.
【0014】なお、前記実施例では、回転軸11と弁板
14をそれぞれ別部材で構成するものとしたが、これら
回転軸11と弁板14を同一材料で一体に形成したもの
であってもよい。In the above-described embodiment, the rotating shaft 11 and the valve plate 14 are formed of different members. However, the rotating shaft 11 and the valve plate 14 may be integrally formed of the same material. Good.
【0015】[0015]
【考案の効果】以上の説明で明らかなように、本考案に
かかるバタフライ弁によれば、長孔は管軸方向に設ける
ため、長孔を設けることにより弁本体の強度が弱くなる
ようなこともない。そして弁板と回転軸との組立、及
び、これらと弁本体との組立は、これら組立部品を手元
に置いて組立精度を確認しながら行なうことができるの
で、各部品を高精度に組み立てることができる。したが
って、弁板で流路を閉鎖したときに弁板と弁本体との間
に隙間を生じることも少なく、無駄にエネルギを浪費す
ることがなく、経済的である。As is apparent from the above description, according to the butterfly valve of the present invention, since the long hole is provided in the tube axis direction, the strength of the valve body is weakened by providing the long hole. Nor. The assembly of the valve plate and the rotating shaft, and the assembly of these with the valve body can be performed while checking the assembly accuracy with these assembly parts at hand, so that each part can be assembled with high accuracy. it can. Therefore, there is little gap between the valve plate and the valve body when the flow path is closed by the valve plate, so that energy is not wasted and economical.
【0016】また、配管中に接続されているバタフライ
弁の点検、修理等を行なう場合でも、弁本体は配管に接
続した状態で、蓋部材を外すことによって回転軸と弁板
と取り出すことができるので、点検、修理等の作業が簡
略化できると共に、弁本体の長さを現場の状況、必要性
に応じたものとすることができる。Further, even when checking and repairing the butterfly valve connected to the piping, the rotary shaft and the valve plate can be taken out by removing the lid member while the valve body is connected to the piping. Therefore, the work such as inspection and repair can be simplified, and the length of the valve body can be adjusted according to the situation at the site and necessity.
【0017】さらに、配管やバタフライ弁の周囲が断熱
材で被覆されている場合でも、点検、修理等の作業は、
前記断熱材をバタフライ弁の全長に亙って除去する必要
がなく、僅かに蓋部材が取り外し可能な部分だけを除去
すれば足りるので、断熱材の補修も簡略化できる。Further, even when the surroundings of the piping and the butterfly valve are covered with a heat insulating material, work such as inspection and repair is not performed.
It is not necessary to remove the heat insulating material over the entire length of the butterfly valve, and it suffices to remove only a portion from which the lid member can be removed, so that repair of the heat insulating material can be simplified.
【0018】さらにまた、回転軸と弁板を同一部材から
一体的に製作することができ、このように一体的に製作
したものでは回転軸と弁板との組立が不要になるので、
組立、点検、修理等の作業が一層簡単になる。Further, the rotary shaft and the valve plate can be integrally manufactured from the same member. In the case where the rotary shaft and the valve plate are integrally manufactured, the assembly of the rotary shaft and the valve plate becomes unnecessary.
Operations such as assembly, inspection, and repair are further simplified.
【図1】 本考案にかかるバタフライ弁の部分断面図で
ある。FIG. 1 is a partial cross-sectional view of a butterfly valve according to the present invention.
【図2】 本考案にかかるバタフライ弁の平面図であ
る。FIG. 2 is a plan view of the butterfly valve according to the present invention.
【図3】 本考案にかかるバタフライ弁の別実施例の分
解斜視図である。FIG. 3 is an exploded perspective view of another embodiment of the butterfly valve according to the present invention.
【図4】 従来のバタフライ弁の部分断面図である。FIG. 4 is a partial sectional view of a conventional butterfly valve.
1…バタフライ弁、2…弁本体、3…流路、4…長孔、
5…軸受凹部、6…蓋部材、10…仕切り部材、11…
回転軸、14…弁板。DESCRIPTION OF SYMBOLS 1 ... Butterfly valve, 2 ... Valve body, 3 ... Flow path, 4 ... Long hole,
5: Bearing recess, 6: Lid member, 10: Partition member, 11:
Rotating shaft, 14 ... valve plate.
───────────────────────────────────────────────────── フロントページの続き (72)考案者 田中 祐三 大阪府大阪市西区京町堀2丁目4番7号 中外炉工業株式会社内 (56)参考文献 実開 平4−106571(JP,U) 実公 昭55−18596(JP,Y2) ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Yuzo Tanaka 2-4-7 Kyomachibori, Nishi-ku, Osaka-shi, Osaka Inside Chugai Furnace Industry Co., Ltd. (56) References Japanese Utility Model No. 4-106571 (JP, U) Kosho 55-18596 (JP, Y2)
Claims (1)
弁本体と、前記長孔が位置する部分の流路断面と略同一
の外形を有する弁板の中心線上に回転軸を設け、前記長
孔を介して前記弁板を弁本体の流路に挿入すると共に、
前記回転軸の一部を前記長孔を介して外部に突出させる
ようにした仕切り部材と、貫通孔を有し、この貫通孔に
前記弁本体から突出した回転軸を挿通し、前記長孔を開
閉可能に閉鎖した蓋部材と、からなることを特徴とする
バタフライ弁。1. A cylindrical valve body having a long hole extending in a pipe axis direction, and a rotary shaft on a center line of a valve plate having substantially the same outer shape as a cross section of a flow passage at a portion where the long hole is located. Provided, while inserting the valve plate into the flow path of the valve body through the long hole,
A partition member configured to protrude a part of the rotating shaft to the outside via the elongated hole, and a through hole, wherein the rotating shaft projected from the valve body is inserted into the through hole, and the elongated hole is A butterfly valve, comprising: a lid member that is opened and closed.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1991089835U JP2536825Y2 (en) | 1991-10-31 | 1991-10-31 | Butterfly valve |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1991089835U JP2536825Y2 (en) | 1991-10-31 | 1991-10-31 | Butterfly valve |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH0540665U JPH0540665U (en) | 1993-06-01 |
JP2536825Y2 true JP2536825Y2 (en) | 1997-05-28 |
Family
ID=13981825
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1991089835U Expired - Lifetime JP2536825Y2 (en) | 1991-10-31 | 1991-10-31 | Butterfly valve |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2536825Y2 (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4186204B2 (en) * | 1999-08-27 | 2008-11-26 | 日本ダイヤバルブ株式会社 | Container butterfly valve |
JP6444921B2 (en) * | 2016-03-18 | 2018-12-26 | 株式会社栗本鐵工所 | Shut-off valve for harmful gas pipeline |
WO2018168339A1 (en) * | 2017-03-14 | 2018-09-20 | 株式会社水研 | Insertion of butterfly valve device under continuous flow |
WO2023144079A1 (en) * | 2022-01-25 | 2023-08-03 | FutureE GmbH | Fluid actuating device |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5551970Y2 (en) * | 1978-07-21 | 1980-12-03 |
-
1991
- 1991-10-31 JP JP1991089835U patent/JP2536825Y2/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JPH0540665U (en) | 1993-06-01 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP4549596B2 (en) | Device for regulating flow in a part or passage of a conduit and an intake manifold including the device | |
JPS6132218Y2 (en) | ||
JP2536825Y2 (en) | Butterfly valve | |
KR100468304B1 (en) | Ball segment valve | |
US20060197044A1 (en) | Electric-motor-operated valve closure system | |
KR100534532B1 (en) | Vacuum pump rotor and method of manufacturing the same | |
JPH03124080U (en) | ||
JPH10299927A (en) | Air valve | |
JPH0718150U (en) | Damper with door | |
JPH028350Y2 (en) | ||
JPH08178121A (en) | Opening and closing valve | |
JPS6349575Y2 (en) | ||
KR200181022Y1 (en) | Door for power plant boiler | |
JPH11294200A (en) | Butterfly valve | |
JP3108402B2 (en) | Butterfly valve device | |
JPH1061789A (en) | Ball valve used in air conditioner or the like and lock mechanism thereof | |
JP3290275B2 (en) | Ball valve | |
JPH10252921A (en) | Resin body integrated ball valve | |
JPS5935777Y2 (en) | Oil level display device for oil tank in oil-burning heater | |
JP3289092B2 (en) | Air conditioner valve | |
JP3088885B2 (en) | Tube type butterfly valve unit with socket | |
JPH09144912A (en) | Valve device for fluid transport pipe | |
JPS6128549Y2 (en) | ||
JPH10299907A (en) | Butterfly valve | |
JPS589023Y2 (en) | Internal pressurized container |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
EXPY | Cancellation because of completion of term |