JP2004036857A - Valve - Google Patents

Valve Download PDF

Info

Publication number
JP2004036857A
JP2004036857A JP2002198499A JP2002198499A JP2004036857A JP 2004036857 A JP2004036857 A JP 2004036857A JP 2002198499 A JP2002198499 A JP 2002198499A JP 2002198499 A JP2002198499 A JP 2002198499A JP 2004036857 A JP2004036857 A JP 2004036857A
Authority
JP
Japan
Prior art keywords
valve
flange joint
cylindrical
flange
cylindrical 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.)
Pending
Application number
JP2002198499A
Other languages
Japanese (ja)
Inventor
Shigeru Ikeda
池田 茂
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kubota Corp
Original Assignee
Kubota Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Kubota Corp filed Critical Kubota Corp
Priority to JP2002198499A priority Critical patent/JP2004036857A/en
Publication of JP2004036857A publication Critical patent/JP2004036857A/en
Pending legal-status Critical Current

Links

Images

Landscapes

  • Flanged Joints, Insulating Joints, And Other Joints (AREA)
  • Valve Housings (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a valve allowing easy replacement of an existing valve with a new valve, dispensing with such complicated work as to cut water supply pipe and to attach a pipe joint with a loose flange thereto. <P>SOLUTION: A flange joint 6 is inserted in socket 3A at one axial end part of a cylindrical valve casing 3 through an elastic ring 7 formed of an elastic body such as rubber. A plurality of pressing bolts 10 are provided for pressing the flange joint 6 through a keep plate 11 and an elastic seal ring 7, radially piercing the socket 3A. The clamping strength of these pressing bolts is lowered to reduce pressing force loaded to a cylindrical part 6B of the flange joint 6 to thereby permit the advancing and receding movement of the flange joint 6 in the direction of an axis C1 to the socket 3A of the cylindrical valve casing 3. <P>COPYRIGHT: (C)2004,JPO

Description

【0001】
【発明の属する技術分野】
本発明は、既設弁から新しい弁への更新を容易にした弁に関する。
【0002】
【従来の技術】
上水、工業用水、農業用水などの給水配管系に介設されているバタフライ弁は、図6および図7に示すように、弁体1と、軸方向の両端部を開口してフランジ2,2を設けた筒状弁箱3と、この筒状弁箱3の軸線C1に交差する軸線C2を有する弁棒4とを備え、弁体1は弁棒4に取付けられて、該弁棒4の軸線C2まわりに回転可能に筒状弁箱3に収容されている。
【0003】
バタフライ弁Vは、弁棒4を正逆方向に回転して、弁体1を全開位置と全閉位置の2位置で保持して使用される。つまり、弁体1を図7の全開位置に保持することで筒状弁箱3は開通され、図6の全閉位置に保持することで筒状弁箱3は遮断される。
【0004】
【発明が解決しようとする課題】
ところが、前記従来のバタフライ弁Vは、フランジ2,2間の軸方向寸法、つまり、筒状弁箱2の面間寸法Lを調整する機能を有していないので、たとえば、給水配管5,5に介設されている既設のバタフライ弁Vが劣化して更新を要求される場合などにおいて、給水配管5,5側に面間調整機能が備わっていないと、給水配管5,5を切断し、これにルーズフランジを有する管継手を組付ける煩雑な工事が必要になる。このため、既設のバタフライ弁Vから新しいバタフライ弁への更新が困難であった。このことは、前述のバタフライ弁Vのみならず仕切弁やボール弁などの他の弁類にもいえることである。
【0005】
本発明は、このような事情に鑑みてなされたもので、煩雑な工事を不要にして、既設の弁から新しい弁への更新を容易に行なうことができる弁を提供することを目的としている。
【0006】
【課題を解決するための手段】
前記目的を達成するために、本発明に係る弁は、弁体が軸方向の両端部を開口した筒状弁箱の軸線に交差する軸線を有する弁棒に取付けられて該筒状弁箱に収容され、前記弁棒の作動に追従して筒状弁箱を開通・遮断できるように構成した弁において、前記筒状弁箱の軸方向の少なくとも一端部に受け口が設けられ、この受け口の内面に弾性シールリングを介在させてフランジ継手が挿入されているとともに、前記受け口を径方向に貫通して前記弾性シールリングを介して前記フランジ継手を押圧する複数の押圧ボルトが設けられていることを特徴としている。
【0007】
本発明によれば、複数の押圧ボルトの押圧力を大きくすることで、筒状弁箱の受け口に対してフランジ継手を軸方向の移動を不能に固定することができ、複数の押圧ボルトの押圧力を小さくすることで、フランジ継手を軸方向に進退移動させることができる。したがって、フランジ継手を軸方向に進退移動させて、フランジ継手が筒状弁箱の軸方向の端面から突出する長さ(突出量)を調整することによって、筒状弁箱の面間寸法を調整することができるので、ルーズフランジを有する管継手を既設配管に組付ける煩雑な工事を不要にして、既設弁から新しい弁への更新を容易に行なうことができる。
【0008】
また、筒状弁箱の受け口とフランジ継手の間に弾性シールリングを介在させてあるので、筒状弁箱とフランジ継手との間に可撓性を付与することができる。
【0009】
【発明の実施の形態】
以下、本発明の一実施の形態を図面に基づいて説明する。
図1は本発明の一実施の形態を示す縦断面図、図2は図1のA−A線断面図である。なお、図6および図7で説明した従来例と同一もしくは相当部分には、同一符号を付して説明する。
【0010】
図1および図2において、バタフライ弁Vは、弁体1と、軸方向の両端部を開口した筒状弁箱3と、この筒状弁箱3の軸線C1に交差する軸線C2を有する弁棒4とを備え、弁体1は弁棒4に取付けられて、該弁棒4の軸線C2まわりに回転可能に筒状弁箱3に収容されている。
【0011】
前記筒状弁箱3の軸方向の一端部には拡径した受け口3Aが設けられ、他端部にはフランジ2が設けられており、前記受け口3Aには、ゴムなどの弾性体によってなる弾性シールリング7を介在させることで、水密を保持した状態でフランジ継手6が挿入されいる。
【0012】
前記フランジ継手6は、フランジ部6Aと筒部6Bとを備え、この筒部6Bを筒状弁箱3の受け口3Aに挿入して、フランジ部6Aを筒状弁箱3の端面3Bから外部に突出させている。
【0013】
一方、筒状弁箱3の受け口3Aを径方向に貫通して複数個のねじ孔9,9…が円周方向等間隔で設けられ、これらねじ孔9,9…に押圧ボルト10が螺合されており、これら押圧ボルト10は、金属製の押さえ板11と弾性シールリング7を介して、フランジ継手6の筒部6Bを径内方向に押圧できるようになっている。そして、給水配管5,5のフランジ5A,5Aと、筒状弁箱3のフランジ2およびフランジ継手6とを、図示していないボルトナットによってなる締結手段により締結した状態で、バタフライ弁Vが給水配管5,5に介設されている。なお、図中12はロックナットを示す。
【0014】
このような構成であれば、複数の押圧ボルト10を締め込むことによって得られる押圧力は、押さえ板11と弾性シールリング7を介してフランジ継手6の筒部6Bに負荷される。このため、複数の押圧ボルト10それぞれの締め込み強さを高めて、フランジ継手6の筒部6Bに負荷される押圧力を大きくすることで、筒状弁箱3の受け口3Aに対してフランジ継手6を軸線C1方向の移動を不能に固定することができる。また、複数の押圧ボルト10それぞれの締め込み強さを小さくして、フランジ継手6の筒部6Bに負荷される押圧力を軽減することで、筒状弁箱3の受け口3Aに対してフランジ継手6を軸線C1方向に進退移動させることができる。
【0015】
たとえば、図1に示すように、筒状弁箱3の軸方向の端面3Bからフランジ継手6が寸法lだけ突出しいる面間寸法がLのバタフライ弁Vにおいて、複数の押圧ボルト10それぞれの締め込み強さを小さくして、フランジ継手6の筒部6Bに負荷される押圧力を軽減したのち、筒状弁箱3の受け口3Aに対してフランジ継手6を押し込むことで、図3に示すように、フランジ継手6の突出長さ(突出量)をl1に短縮して、バタフライ弁Vの面間寸法をL1に縮小することができ、この状態で、押圧ボルト10それぞれの締め込み強さを高めて、押さえ板11を介してフランジ継手6の筒部6Bに負荷される押圧力を大きくすることにより、筒状弁箱3の受け口3Aに対してフランジ継手6を軸線C1方向の移動を不能に固定して、バタフライ弁Vの面間寸法をL1に保持することができる。
【0016】
一方、図1に示すように、筒状弁箱3の軸方向の端面3Bからフランジ継手6が寸法lだけ突出しいる面間寸法がLのバタフライ弁Vにおいて、複数の押圧ボルト10それぞれの締め込み強さを小さくして、フランジ継手6の筒部6Bに負荷される押圧力を軽減したのち、フランジ継手6を少し引き出すことで、図4に示すように、フランジ継手6の突出長さ(突出量)をl2に増大して、バタフライ弁Vの面間寸法をL2に拡大することができ、この状態で、押圧ボルト10それぞれの締め込み強さを高めて、フランジ継手6の筒部7Bに負荷される押圧力を大きくすることにより、筒状弁箱3の受け口3Aに対してフランジ継手6を軸線C1方向の移動を不能に固定して、バタフライ弁Vの面間寸法をL2に保持することができる。
【0017】
このように、バタフライ弁Vの面間寸法は、フランジ継手6を軸線C1方向に進退移動させることにより、前記L1〜L2の範囲内で調整することができるので、たとえば、図1に示す面間寸法Lを有して給水配管5,5に介設されている既設のバタフライ弁Vが劣化して、更新を要求される場合などにおいては、前述の手順により図1のバタフライ弁Vのフランジ継手6の突出長さを図3のl1に短縮し、面間寸法をL1に縮小して給水配管5,5から取り外し、新しいバタフライ弁Vは、予め、その面間寸法をL1に縮小した状態で給水配管5と5の間に配置し、この状態で、前述の手順によりフランジ継手6の突出長さをlに増大して、面間寸法をLに拡大することで、更新したバタフライ弁Vを図1のように給水配管5,5に介設することができる。このため、給水配管5,5を切断してこれにルーズフランジを有する管継手を組付けるような煩雑な工事を行なうことなく、既設のバタフライ弁Vから新しいバタフライ弁Vへの更新を容易に行なうことができる。
【0018】
また、筒状弁箱3の受け口3Aには、ゴムなどの弾性体によってなる弾性シールリング7を介在させることで、水密を保持した状態でフランジ継手6が挿入されているので、筒状弁箱3とフランジ継手6との間に可撓性が付与されることになる。したがって、図5に示すように、給水配管5の軸線C3と筒状弁箱3の軸線C1とに相対的な僅かな傾きが生じたとしても、この傾きはフランジ継手6の傾斜によって吸収することができる。
【0019】
なお、前記実施の形態では、筒状弁箱3の軸方向の一端部に受け口3Aを設け、この受け口3Aに弾性シールリング7を介在させた状態でフランジ継手6を挿入し、フランジ継手6の進退移動によりバタフライ弁Vの面間寸法Lを調整する構造で説明しているが、筒状弁箱3の軸方向両端部に受け口3A,3Aを設け、これら受け口3A,3Aに弾性シールリング7,7を介在させた状態でフランジ継手6,6を挿入し、フランジ継手6,6の進退移動によりバタフライ弁Vの面間寸法Lを調整できるように構成してもよい。
【0020】
また、前記実施の形態では、バタフライ弁Vで説明しているが、仕切弁やボール弁などの他の弁類にも適用することができる。
【0021】
【発明の効果】
以上説明したように、本発明に係る弁は構成されているので、以下のような格別の効果を奏する。
【0022】
すなわち、フランジ継手を筒状弁箱の軸方向に進退移動させ、フランジ継手が筒状弁箱の軸方向の端面から突出する長さ(突出量)を調整することによって、弁の面間寸法を調整することができるので、既設の弁が劣化して更新を要求される場合、給水配管側に面間調整機能が備わっていなくても、給水配管を切断してこれにルーズフランジを有する管継手を組付けるような煩雑な工事を行なうことなく、既設の弁から新しい弁への更新を容易に行なうことができる。また、筒状弁箱の受け口には、ゴムなどの弾性体によってなる弾性シールリングを介在させることで、水密を保持した状態でフランジ継手が軸線方向の進退移動を可能に挿入されているので、筒状弁箱とフランジ継手との間に可撓性が付与されることになり、給水配管の軸線と筒状弁箱の軸線との相対的な僅かな傾きを吸収することができる。
【図面の簡単な説明】
【図1】本発明の一実施の形態を示す縦断面図である。
【図2】図1のA−A線断面図である。
【図3】面間寸法を縮小した調整状態を部分的に示す縦断面図である。
【図4】面間寸法を拡大した調整状態を部分的に示す縦断面図である。
【図5】付与された可撓性による傾きの吸収状態を部分的に示す縦断面図である。
【図6】従来例の縦断面図である。
【図7】図6のB−B線断面図である。
【符号の説明】
1 弁体
3 筒状弁箱
3A 筒状弁箱の受け口
4 弁棒
6 フランジ継手
7 弾性シールリング
10 押圧ボルト
C1 筒状弁箱の軸線
C2 弁棒の軸線
[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a valve that facilitates updating from an existing valve to a new valve.
[0002]
[Prior art]
As shown in FIGS. 6 and 7, a butterfly valve interposed in a water supply piping system for tap water, industrial water, agricultural water, or the like has a valve body 1 and flanges 2 opened at both axial ends. 2 is provided, and a valve stem 4 having an axis C2 intersecting with the axis C1 of the cylindrical valve box 3 is provided. Is accommodated in the cylindrical valve box 3 so as to be rotatable around an axis C2 of the cylindrical valve.
[0003]
The butterfly valve V is used by rotating the valve rod 4 in the forward and reverse directions and holding the valve body 1 at two positions, a fully open position and a fully closed position. That is, the tubular valve box 3 is opened by holding the valve body 1 at the fully open position in FIG. 7, and the tubular valve box 3 is shut off by holding it at the fully closed position in FIG.
[0004]
[Problems to be solved by the invention]
However, since the conventional butterfly valve V does not have a function of adjusting the axial dimension between the flanges 2, that is, the dimension L between the surfaces of the cylindrical valve box 2, for example, the water supply pipes 5, 5 are provided. In the case where the existing butterfly valve V interposed in is deteriorated and required to be renewed, if the water supply pipes 5 and 5 do not have a face-to-face adjustment function, the water supply pipes 5 and 5 are cut off. A complicated construction for assembling a pipe joint having a loose flange is required. For this reason, it was difficult to update the existing butterfly valve V with a new butterfly valve. This is true for not only the butterfly valve V but also other valves such as a gate valve and a ball valve.
[0005]
The present invention has been made in view of such circumstances, and an object of the present invention is to provide a valve that can easily update an existing valve to a new valve without complicated work.
[0006]
[Means for Solving the Problems]
In order to achieve the above object, a valve according to the present invention is mounted on a valve stem having an axis that intersects with an axis of a cylindrical valve box having a valve body opened at both ends in the axial direction, and is attached to the cylindrical valve box. In the valve housed and configured to open and close the cylindrical valve box following the operation of the valve stem, a receiving port is provided at at least one end in the axial direction of the cylindrical valve box, and an inner surface of the receiving port is provided. A flange joint is inserted with an elastic seal ring interposed therebetween, and a plurality of pressing bolts are provided to radially penetrate the receptacle and press the flange joint via the elastic seal ring. Features.
[0007]
According to the present invention, by increasing the pressing force of the plurality of pressing bolts, the flange joint can be fixed to the receiving port of the cylindrical valve box so as to be unable to move in the axial direction. By reducing the pressure, the flange joint can be moved forward and backward in the axial direction. Therefore, by adjusting the length (projection amount) of the flange joint projecting from the axial end face of the cylindrical valve box by moving the flange joint in the axial direction, the inter-plane dimension of the cylindrical valve box is adjusted. Therefore, it is not necessary to perform a complicated work of assembling a pipe joint having a loose flange to an existing pipe, and the existing valve can be easily updated to a new valve.
[0008]
Further, since the elastic seal ring is interposed between the socket of the cylindrical valve box and the flange joint, flexibility can be provided between the cylindrical valve box and the flange joint.
[0009]
BEST MODE FOR CARRYING OUT THE INVENTION
An embodiment of the present invention will be described below with reference to the drawings.
FIG. 1 is a longitudinal sectional view showing an embodiment of the present invention, and FIG. 2 is a sectional view taken along line AA of FIG. The same or corresponding parts as those of the conventional example described with reference to FIGS. 6 and 7 are denoted by the same reference numerals.
[0010]
1 and 2, a butterfly valve V is a valve stem having a valve element 1, a cylindrical valve box 3 having both ends opened in the axial direction, and an axis C 2 intersecting the axis C 1 of the cylindrical valve box 3. The valve element 1 is attached to the valve stem 4 and is housed in the cylindrical valve box 3 so as to be rotatable around the axis C2 of the valve stem 4.
[0011]
The cylindrical valve box 3 is provided at one end in the axial direction with a receiving port 3A having an enlarged diameter, and at the other end is provided with a flange 2, and the receiving port 3A has an elasticity made of an elastic material such as rubber. With the seal ring 7 interposed, the flange joint 6 is inserted while maintaining watertightness.
[0012]
The flange joint 6 includes a flange portion 6A and a cylindrical portion 6B, and the cylindrical portion 6B is inserted into a receiving port 3A of the cylindrical valve box 3 so that the flange portion 6A extends from the end face 3B of the cylindrical valve box 3 to the outside. Projecting.
[0013]
On the other hand, a plurality of screw holes 9, 9, ... are provided at regular intervals in the circumferential direction through the receptacle 3A of the cylindrical valve box 3 in the radial direction, and the pressing bolts 10 are screwed into these screw holes 9, 9, .... These pressing bolts 10 can press the cylindrical portion 6B of the flange joint 6 in a radially inward direction via a metal holding plate 11 and an elastic seal ring 7. When the flanges 5A and 5A of the water supply pipes 5 and 5, the flange 2 and the flange joint 6 of the cylindrical valve box 3 are fastened by fastening means including bolts and nuts (not shown), the butterfly valve V feeds water. The pipes 5 and 5 are provided. In the figure, reference numeral 12 denotes a lock nut.
[0014]
With such a configuration, the pressing force obtained by tightening the plurality of pressing bolts 10 is applied to the cylindrical portion 6B of the flange joint 6 via the pressing plate 11 and the elastic seal ring 7. For this reason, by increasing the tightening strength of each of the plurality of pressing bolts 10 and increasing the pressing force applied to the cylindrical portion 6B of the flange joint 6, the flange joint with respect to the socket 3A of the cylindrical valve box 3 is increased. 6 can be fixed so that movement in the direction of the axis C1 is impossible. Further, by reducing the tightening strength of each of the plurality of pressing bolts 10 to reduce the pressing force applied to the cylindrical portion 6B of the flange joint 6, the flange joint is formed with respect to the socket 3A of the cylindrical valve box 3. 6 can be moved back and forth in the direction of the axis C1.
[0015]
For example, as shown in FIG. 1, in the butterfly valve V having a dimension L between the flange joints 6 protruding from the axial end face 3B of the cylindrical valve box 3 by the dimension l, each of the plurality of pressing bolts 10 is tightened. After reducing the strength to reduce the pressing force applied to the cylindrical portion 6B of the flange joint 6, the flange joint 6 is pushed into the receiving port 3A of the cylindrical valve box 3 as shown in FIG. The protrusion length (projection amount) of the flange joint 6 can be reduced to 11 and the inter-plane dimension of the butterfly valve V can be reduced to L1, and in this state, the tightening strength of each of the pressing bolts 10 is increased. By increasing the pressing force applied to the cylindrical portion 6B of the flange joint 6 via the holding plate 11, the flange joint 6 cannot be moved in the direction of the axis C1 with respect to the receiving port 3A of the cylindrical valve box 3. Fixed, butterfly It can hold face to face dimensions of the valve V to L1.
[0016]
On the other hand, as shown in FIG. 1, in the butterfly valve V having a face-to-face dimension L in which the flange joint 6 protrudes from the axial end face 3B of the cylindrical valve box 3 by the dimension l, each of the plurality of pressing bolts 10 is tightened. After reducing the strength to reduce the pressing force applied to the cylindrical portion 6B of the flange joint 6, by slightly pulling out the flange joint 6, as shown in FIG. Amount) can be increased to l2, and the inter-plane dimension of the butterfly valve V can be increased to L2. In this state, the tightening strength of each of the pressing bolts 10 is increased and the cylindrical portion 7B of the flange joint 6 is increased. By increasing the applied pressing force, the flange joint 6 is fixed to the receiving port 3A of the cylindrical valve box 3 so as not to move in the direction of the axis C1, and the inter-plane dimension of the butterfly valve V is maintained at L2. be able to.
[0017]
As described above, the inter-plane dimension of the butterfly valve V can be adjusted within the range of L1 to L2 by moving the flange joint 6 forward and backward in the direction of the axis C1. When the existing butterfly valve V having the dimension L and interposed in the water supply pipes 5 and 5 is deteriorated and needs to be renewed, the flange joint of the butterfly valve V of FIG. 6 is reduced to l1 in FIG. 3, the inter-plane dimension is reduced to L1, and removed from the water supply pipes 5, 5, and a new butterfly valve V is prepared with the inter-plane dimension previously reduced to L1. By disposing the butterfly valve V between the water supply pipes 5 and 5 in this state, the protruding length of the flange joint 6 is increased to 1 by the above-described procedure, and the inter-plane dimension is enlarged to L, so that the updated butterfly valve V As shown in FIG. It is possible. For this reason, the existing butterfly valve V can be easily updated to a new butterfly valve V without performing complicated work such as cutting the water supply pipes 5 and 5 and assembling a pipe joint having a loose flange thereto. be able to.
[0018]
Also, the flange joint 6 is inserted in a watertight state by interposing an elastic seal ring 7 made of an elastic material such as rubber in the receiving port 3A of the cylindrical valve box 3 so that the cylindrical valve box 3 is inserted. Flexibility is provided between the flange joint 3 and the flange joint 6. Therefore, as shown in FIG. 5, even if a slight inclination occurs between the axis C3 of the water supply pipe 5 and the axis C1 of the cylindrical valve box 3, this inclination is absorbed by the inclination of the flange joint 6. Can be.
[0019]
In the above-described embodiment, a receiving port 3A is provided at one end of the cylindrical valve box 3 in the axial direction, and the flange joint 6 is inserted with the elastic seal ring 7 interposed in the receiving port 3A. Although the structure in which the inter-plane dimension L of the butterfly valve V is adjusted by the reciprocating movement is described, receiving ports 3A, 3A are provided at both axial ends of the cylindrical valve box 3, and the elastic sealing rings 7 , 7 may be inserted such that the flange joints 6, 6 are inserted and the distance L between the surfaces of the butterfly valve V can be adjusted by the forward and backward movement of the flange joints 6, 6.
[0020]
Further, in the above embodiment, the description has been made of the butterfly valve V. However, the present invention can be applied to other valves such as a gate valve and a ball valve.
[0021]
【The invention's effect】
As described above, since the valve according to the present invention is configured, the following special effects can be obtained.
[0022]
That is, by moving the flange joint forward and backward in the axial direction of the cylindrical valve box and adjusting the length (projection amount) of the flange joint projecting from the axial end face of the cylindrical valve box, the distance between the surfaces of the valve is reduced. Adjustment is possible, so if the existing valve deteriorates and needs to be renewed, even if the water supply pipe side does not have a face-to-face adjustment function, the water supply pipe is cut and a pipe fitting with a loose flange It is possible to easily update an existing valve to a new valve without performing a complicated construction such as assembling. In addition, since the flange joint is inserted into the receiving port of the cylindrical valve box so that the flange joint can move in the axial direction while maintaining watertightness by interposing an elastic seal ring made of an elastic body such as rubber. Flexibility is provided between the cylindrical valve box and the flange joint, and a relatively slight inclination between the axis of the water supply pipe and the axis of the cylindrical valve box can be absorbed.
[Brief description of the drawings]
FIG. 1 is a longitudinal sectional view showing an embodiment of the present invention.
FIG. 2 is a sectional view taken along line AA of FIG.
FIG. 3 is a longitudinal sectional view partially showing an adjustment state in which an inter-plane dimension is reduced.
FIG. 4 is a longitudinal sectional view partially showing an adjustment state in which an inter-plane dimension is enlarged.
FIG. 5 is a longitudinal sectional view partially showing a state of absorption of inclination due to imparted flexibility.
FIG. 6 is a longitudinal sectional view of a conventional example.
FIG. 7 is a sectional view taken along line BB of FIG. 6;
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Valve body 3 Cylindrical valve box 3A Receptacle of cylindrical valve box 4 Valve stem 6 Flange joint 7 Elastic seal ring 10 Press bolt C1 Axis line of cylindrical valve box C2 Axis line of valve stem

Claims (1)

弁体が軸方向の両端部を開口した筒状弁箱の軸線に交差する軸線を有する弁棒に取付けられて該筒状弁箱に収容され、前記弁棒の作動に追従して筒状弁箱を開通・遮断できるように構成した弁において、前記筒状弁箱の軸方向の少なくとも一端部に受け口が設けられ、この受け口の内面に弾性シールリングを介在させてフランジ継手が挿入されているとともに、前記受け口を径方向に貫通して前記弾性シールリングを介して前記フランジ継手を押圧する複数の押圧ボルトが設けられていることを特徴とする弁。The valve body is attached to a valve stem having an axis intersecting with the axis of a cylindrical valve box having both ends opened in the axial direction, is housed in the cylindrical valve box, and follows the operation of the valve stem to operate the cylindrical valve. In the valve configured to be able to open and close the box, a receiving port is provided at at least one end in the axial direction of the cylindrical valve box, and a flange joint is inserted through an elastic seal ring on the inner surface of the receiving port. And a plurality of pressing bolts which penetrate the receiving port in the radial direction and press the flange joint via the elastic seal ring.
JP2002198499A 2002-07-08 2002-07-08 Valve Pending JP2004036857A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2002198499A JP2004036857A (en) 2002-07-08 2002-07-08 Valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2002198499A JP2004036857A (en) 2002-07-08 2002-07-08 Valve

Publications (1)

Publication Number Publication Date
JP2004036857A true JP2004036857A (en) 2004-02-05

Family

ID=31705929

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2002198499A Pending JP2004036857A (en) 2002-07-08 2002-07-08 Valve

Country Status (1)

Country Link
JP (1) JP2004036857A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101358060B1 (en) * 2013-07-05 2014-02-05 서우실업 주식회사 Water control valve with variable flange
EP3204672A4 (en) * 2014-10-09 2018-05-30 Ulefos Esco AS Gate valve
CN110307352A (en) * 2019-06-03 2019-10-08 浙江创安液压科技有限公司 A kind of supplying valve
CN111795233A (en) * 2020-07-20 2020-10-20 济南德创试验仪器有限公司 Pipeline quick connecting flange and pipeline quick connecting method

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101358060B1 (en) * 2013-07-05 2014-02-05 서우실업 주식회사 Water control valve with variable flange
EP3204672A4 (en) * 2014-10-09 2018-05-30 Ulefos Esco AS Gate valve
CN110307352A (en) * 2019-06-03 2019-10-08 浙江创安液压科技有限公司 A kind of supplying valve
CN110307352B (en) * 2019-06-03 2022-04-15 浙江创安液压科技有限公司 Liquid supply valve
CN111795233A (en) * 2020-07-20 2020-10-20 济南德创试验仪器有限公司 Pipeline quick connecting flange and pipeline quick connecting method
CN111795233B (en) * 2020-07-20 2022-07-08 江阴市龙润法兰有限公司 Pipeline quick connecting flange and pipeline quick connecting method

Similar Documents

Publication Publication Date Title
JP2007155044A (en) Pipe joint locking device
JP7411273B2 (en) How to install the fixing jig for the valve case split part
KR20030067684A (en) Pipe joint reducing requiered tightening force, including a tightening nut with two threaded sections whose pitches differ
JP2016125599A (en) Reinforcement jig of joint part
JP2004036857A (en) Valve
JP2004232744A (en) Valve
JP2001074192A (en) Opening closure device for resin pipe
JP2001173853A (en) Detachment preventive device for tube fitting part
JP4717409B2 (en) Rust prevention method for the cutting edge in the installation work of the insert
US20080277930A1 (en) Pipeline Closing Apparatus
JP2002340211A (en) Valve
JP2005061549A (en) Pipe joint structure for valve and resin pipe, and connecting method using the same
JP2002340223A (en) Valve
JP2021071178A (en) Face-to-face expandable valve
JP4652014B2 (en) Rust prevention method for the cutting edge in the installation work of the insert
JP3027062U (en) Pipe joint tightening device
JP2002005325A (en) Valve
CN201339745Y (en) Plastic control valve used for tap
KR101713411B1 (en) Connector of hose for agricultural watering line
KR200311887Y1 (en) Concavo­convex rubber sheet butterfly valve
JP2006183839A (en) Joint holding member
JP2022136239A (en) Joint part reinforcing structure
KR200307198Y1 (en) Connecting device for pipe
JP2671776B2 (en) Butterfly valve fittings
JP2000065252A (en) Piping structure