JPS63231087A - Flange joint - Google Patents

Flange joint

Info

Publication number
JPS63231087A
JPS63231087A JP63039745A JP3974588A JPS63231087A JP S63231087 A JPS63231087 A JP S63231087A JP 63039745 A JP63039745 A JP 63039745A JP 3974588 A JP3974588 A JP 3974588A JP S63231087 A JPS63231087 A JP S63231087A
Authority
JP
Japan
Prior art keywords
flange
pipe
collar
pressed against
longitudinal axis
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
JP63039745A
Other languages
Japanese (ja)
Inventor
カーレ・ランペラ
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.)
G S HAIDORO Oy
Original Assignee
G S HAIDORO Oy
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 G S HAIDORO Oy filed Critical G S HAIDORO Oy
Publication of JPS63231087A publication Critical patent/JPS63231087A/en
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L23/00—Flanged joints
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L23/00—Flanged joints
    • F16L23/02—Flanged joints the flanges being connected by members tensioned axially
    • F16L23/024—Flanged joints the flanges being connected by members tensioned axially characterised by how the flanges are joined to, or form an extension of, the pipes
    • F16L23/028—Flanged joints the flanges being connected by members tensioned axially characterised by how the flanges are joined to, or form an extension of, the pipes the flanges being held against a shoulder
    • F16L23/0283—Flanged joints the flanges being connected by members tensioned axially characterised by how the flanges are joined to, or form an extension of, the pipes the flanges being held against a shoulder the collar being integral with the pipe
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L23/00—Flanged joints
    • F16L23/02—Flanged joints the flanges being connected by members tensioned axially
    • F16L23/032—Flanged joints the flanges being connected by members tensioned axially characterised by the shape or composition of the flanges

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Flanged Joints, Insulating Joints, And Other Joints (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【発明の詳細な説明】 本発明は、連結されるべきパイプ端部を具え、パイプの
長手軸線に対して概ね垂直で平坦な前面を有する鍔部を
前記各パイプに設け、前記パイプ用の中央孔が設けられ
たフランジが前記鍔部の後方に配置されかつ適切な固定
手段例えばボルトとナツトでパイプの軸線方向に協働し
て締結され、前記鍔部の厚さを鍔部の周囲からパイプの
中心に向かって増加させ゛て、前記鍔部の背面の形状を
前記前面の形状と違なるよう構成したフランジ継手に関
するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention provides for each pipe to have a collar having a flat front face, which is generally perpendicular to the longitudinal axis of the pipes, the collar having pipe ends to be connected; A flange provided with holes is arranged behind the collar and fastened together in the axial direction of the pipe by suitable fastening means, such as bolts and nuts, so that the thickness of the collar can be reduced from the periphery of the collar to the pipe. The present invention relates to a flange joint in which the shape of the back surface of the flange portion is different from the shape of the front surface by increasing toward the center of the flange portion.

このタイプのフランジ継手を形成せしめるために、連結
されるべきパイプ端部には、パイプの長手方向軸線に対
して概ね垂直な鍔部が一般的に設けられている。このよ
うな鍔部を形成するために幾つかの手段が開示されてい
る。例えば、ある千尋がフィンランド国特許出願第７９
１６９．５号に提案されている。また、パイプ端部で鍔
部を生ぜしめるための別の手段がフィンランド国特許出
願第８７０７９９号に提案されており、この場合、鍔成
形”加工は２段階で行われ、まず、パイプ端部は約３５
〜４０゜の角度に拡張させられ、続いて、拡張用補助ヘ
ッドを用いて９０°の角度に形成される。９０°の鍔部
を形成するに際して通常、既製の鍔部が設けられた分離
タイプの炉部品をパイプ端部に溶接する方法が使われる
。To form a flange joint of this type, the ends of the pipes to be connected are generally provided with a collar generally perpendicular to the longitudinal axis of the pipes. Several means have been disclosed for forming such a collar. For example, a certain Chihiro published Finnish patent application No. 79.
Proposed in No. 169.5. Another means for producing a flange at the pipe end is also proposed in Finnish patent application no. Approximately 35
It is expanded to a ~40° angle and then formed to a 90° angle using an auxiliary expanding head. The 90° collar is usually formed by welding a separate furnace part with a ready-made collar to the pipe end.

一旦鍔部が形成されると、対向するパイプに設けた鍔部
の後方に配置されたフランジは適切な固定手段例えばボ
ルトとナツトによって協働して締結される。ガスケット
は通常パイプ端部間で継手内に載置される。Once the collar is formed, flanges located behind the collar on opposing pipes are cooperatively fastened by suitable fastening means such as bolts and nuts. Gaskets are typically mounted within the fitting between the pipe ends.

ここで、上述したタイプのフランジ継手は、鍔部に対し
て押圧される表面がパイプの長手軸線に対して概ね垂直
でかつ直状をなすフランジを用いている。直状の背面を
有する鍔部は、例えば鍔成形装置内に設けた直状支持プ
レートを使用することによって形成することができる。Here, the above-mentioned type of flange joint uses a flange whose surface that is pressed against the collar is generally perpendicular to the longitudinal axis of the pipe and is straight. A collar with a straight back surface can be formed, for example, by using a straight support plate in a collar forming device.

この場合、直状で平坦な背面を有する鍔部を最小の成形
工程で形成することが可能であるが、大量の材料が鍔部
の中央領域近傍のフロント側に堆積されて、前面が直状
に形成されなくなる。しかしながら、フランジ継手にお
いて、連結されるべきパイプの鍔部は協働して出来る限
りぴったりと嵌合することが重要である。言い換えれば
、鍔部の前面が平坦に形成されてない場合、前面を平坦
にするような加工が行われる必要がある。In this case, it is possible to form a collar with a straight, flat back surface with a minimum of molding steps, but a large amount of material is deposited on the front side near the central region of the collar, causing the front surface to be straight. will no longer form. However, in flange joints, it is important that the flanges of the pipes to be connected work together to fit as tightly as possible. In other words, if the front surface of the flange is not formed flat, it is necessary to process the front surface to make it flat.

パイプ端部を膨出して、鍔部をパイプの長手方向軸線に
対して直角に形成する場合、直径が増加するにつれて鍔
部の厚みが減少する。パイプに対して９０°に形成した
鍔部の前面が大きな直径を有する場合、この前面を平坦
にするために更に加工され、このことによって、重要な
要素である鍔部の厚みが゛減少して、鍔部の質を低下さ
せる。If the pipe end is bulged to form a collar at right angles to the longitudinal axis of the pipe, the thickness of the collar decreases as the diameter increases. If the front face of the collar formed at 90° to the pipe has a large diameter, this front face is further processed to flatten it, thereby reducing the thickness of the collar, which is an important factor. , deteriorating the quality of the collar.

米国特許第３．５３３．４４９号には、パイプ端部に９
０゜の鍔部を形成するための鍔成形装置が提案されてい
る。鍔部は支持プレートを使用することで形成され、こ
の支持プレートにおいて、鍔部の背面側と対面する表面
は垂直面になっていない。直状のフランジが鍔部に取付
けられた場合、協働して押圧されるフランジの面と鍔部
の面が形状において正確に一致しないので、最善の連結
を得ることができない。U.S. Pat. No. 3,533,449 states that 9
A flange forming apparatus for forming a 0° flange has been proposed. The flange is formed by using a support plate, and in this support plate, the surface facing the back side of the flange is not a vertical surface. If a straight flange is attached to the flange, the best connection cannot be obtained because the surfaces of the flange and the flange that are pressed together do not exactly match in shape.

そこで、本発明の目的は、上述した欠点のないフランジ
継手を達成することにある。本発明のフランジ継手は、
前記・鍔部に対して押圧される前記フ′ランジの表面が
、パイプの長手軸線に対して垂直な面とならず、前記鍔
部の周囲部分に対して押圧される前記フランジの部分が
前記鍔部の中央部分に対して押圧される前記フランジの
部分よりも前記パイプの前記前面に近づ（ように位置し
て、前記鍔部と前記フランジとの対向面が協働して嵌合
するように実質的に同一形状にしたことを特徴とする。The object of the invention is therefore to achieve a flange joint that does not have the above-mentioned drawbacks. The flange joint of the present invention is
The surface of the flange that is pressed against the flange is not perpendicular to the longitudinal axis of the pipe, and the portion of the flange that is pressed against the surrounding area of the flange is not perpendicular to the longitudinal axis of the pipe. The flange is located closer to the front surface of the pipe than the portion of the flange that is pressed against the center portion of the flange, so that the facing surfaces of the flange and the flange cooperate to fit together. It is characterized by having substantially the same shape as shown in FIG.

本発明のフランジ継手の好適実施態様にふいて、前記鍔
部に対して押圧される前記フランジの表面が、垂直断面
において湾曲形状を有したことを特徴とする。A preferred embodiment of the flange joint of the present invention is characterized in that the surface of the flange that is pressed against the flange has a curved shape in a vertical cross section.

本発明のフランジ継手の他の好適実施態様において、前
記鍔部に対して押圧される前記フランジの表面は、垂直
断面において平坦形状を有すると共に、前記パイプの長
手軸線に対して僅かな角度をもつよう形成されたことを
特徴とする。In another preferred embodiment of the flange joint of the present invention, the surface of the flange that is pressed against the collar has a flat shape in vertical section and is at a slight angle with respect to the longitudinal axis of the pipe. It is characterized by being formed like this.

本発明のフランジ継手は先′の技術の欠点を解決する上
で多くの利点をもたらす。最新の装置を使用することで
、継手に必要とされる垂直な鍔部を容易に形成すること
ができる。鍔部は更に加工される必要がなく、したがっ
て鍔部の厚みを過剰に減少させることがない。鍔部は周
囲部分よりも中央部分で厚くなっており、その結果、鍔
部とパイプとの間の曲げ変形により生じる軸線方向の剪
断力に対してより大きな抵抗を有することとなる。The flange joint of the present invention offers many advantages in overcoming the shortcomings of the prior art. Using modern equipment, it is easy to create the vertical collar required for the joint. The flange does not need to be further processed, so the thickness of the flange is not excessively reduced. The collar is thicker at the center than at the periphery, resulting in greater resistance to axial shear forces caused by bending deformations between the collar and the pipe.

本発明によって与えられる他の利点は、鍔部とパイプと
の間で角度をなす鍔部の背面を完全な直線状に形成する
ことができ、そして、フランジの内側の球状面とパイプ
の外面との間の距離を減らすことができる。このことは
圧力に対する継手の抵抗を増すことができる。なぜなら
、鍔部を曲げるトルクアーム部が減少するからである。Another advantage provided by the invention is that the back surface of the collar which forms an angle between the collar and the pipe can be formed perfectly straight, and the inner spherical surface of the flange and the outer surface of the pipe The distance between can be reduced. This can increase the resistance of the joint to pressure. This is because the torque arm portion that bends the flange portion is reduced.

この「トルクアーム部」は、フランジと鍔部との間の最
内点と、パイプの中線との間の距離に関係する。This "torque arm" is related to the distance between the innermost point between the flange and the collar and the center line of the pipe.

以下、本発明に係る実施例を図面に基づいて詳細に説明
する。Embodiments of the present invention will be described in detail below with reference to the drawings.

第１図はパイプ端部１の断面（上部のみを示し、下部は
省略しである）を示し、このパイプ端部１は、この長手
方向軸線に概ね垂直な鍔部２を生せしめるよう拡張して
いる。鍔部２の背面３は、直状に形成されていると共に
、フランジ継手に設けたフランジに対してぴったりと嵌
合するように形成されている。直状の背面は、例えば鍔
成形装置において直状の背面板を使用することによって
形成することができる。鍔成形装置については、ここで
は述べないが、必要なら、フィンランド国特許出願第８
７０７９９号に提案されている装置を使用してもよい。Figure 1 shows a cross section (only the upper part is shown, the lower part is omitted) of a pipe end 1 which has been expanded to produce a collar 2 which is generally perpendicular to its longitudinal axis. ing. The back surface 3 of the flange portion 2 is formed in a straight shape and is formed to fit snugly into a flange provided on a flange joint. A straight back surface can be formed, for example, by using a straight back plate in a collar forming device. I will not discuss the flange forming device here, but if necessary, please refer to Finnish Patent Application No. 8.
The device proposed in No. 70799 may also be used.

短い拡張部をなす垂直鍔部がパイプ端部に溶接される場
合、必ずしも鍔成形装置を使用する必要はない。If a short extension of the vertical collar is welded to the pipe end, it is not necessary to use a collar forming device.

第１図から明かなように、鍔部２の前面４は直状に形成
されていない。拡張加工中、パイプ材料の厚さは、周囲
部分で減少し、中心部分の方に向かって増加する。しか
しながら、鍔部の前面４は直状でかつ平坦に形成される
必要がある。なぜなら、フランジ継手において、前面４
が別のパイプの鍔部に押付けられて、２つの鍔部間に一
般的にガスケットが設けられるゐ１らである。したがっ
て、鍔部は第２図に示すように、直状にかつ平坦に加工
される必要がある。第２図は、全鍔部が元のパイプ壁よ
りも薄くなるよう付加的処理の行われた後の状態を示し
ている。As is clear from FIG. 1, the front surface 4 of the collar portion 2 is not formed straight. During the expansion process, the thickness of the pipe material decreases in the peripheral part and increases towards the central part. However, the front surface 4 of the collar needs to be straight and flat. This is because in a flange joint, the front 4
is pressed against the collar of another pipe, and a gasket is generally provided between the two collars. Therefore, the flange needs to be straight and flat, as shown in FIG. FIG. 2 shows the condition after additional processing has been carried out so that the entire collar is thinner than the original pipe wall.

第３図は本発明によって提供される鍔部２を示す。この
実施例において、背面３は直状でなく、好適には僅かに
湾曲し、一方、前面４は直状で平坦である。つまり、パ
イプ端部が拡張して鍔部を形成した場合、鍔部の周囲部
は中央部より薄くなっている。通常使用されている鍔成
形方法は直線状で対面する支持プレートを利用するので
、付加的ローラ加工を介して前面のみを直状に形成する
場合、鍔部の中央領域においてより多くの材料が集まる
こととなる。FIG. 3 shows the collar 2 provided by the invention. In this embodiment, the back surface 3 is not straight, preferably slightly curved, while the front surface 4 is straight and flat. In other words, when the end of the pipe expands to form a flange, the periphery of the flange is thinner than the center. Since the commonly used flange forming method utilizes linear facing support plates, more material gathers in the central region of the flange when only the front side is formed straight through additive roller processing. It happens.

本発明の基本的な概念は、支持面を形成する支持プレー
トをもつ鍔成形装置を提供することにあり、前記支持面
は、鍔部の背面上で押し広げられるような拡張加工中、
鍔部の中央領域に材料を集めるために垂直面になってい
ない。このようにすると、鍔部の前面は平坦に形成され
ると共に、別の処理加工をする必要がなくなる。The basic idea of the invention is to provide a collar forming device with a support plate forming a support surface, during the expansion process in which the support surface is forced out on the back surface of the collar.
No vertical plane to collect material in the central area of the collar. In this way, the front surface of the flange portion is formed flat, and there is no need for additional processing.

継手に使用されるフランジは、鍔部２に押圧される面が
鍔部２の背面３と同じ形状を有するように形成されてい
るので、鍔部の背面はいかなる付加的な処理加工も必要
としない。The flange used in the joint is formed so that the surface pressed against the flange 2 has the same shape as the back surface 3 of the flange 2, so the back surface of the flange does not require any additional processing. do not.

第４図は鍔部の更に他の実施例を示し、この鍔部は、断
面において平坦でありかつ、前面４のようにパイプ１に
対して正確な垂直になっていない背面３を有する。前面
と背面との間の角度は比較的小さく、好適には５〜１０
°しかし通常１°より大きく、そしてこの関係は、パイ
プの直径とパイプ壁の厚さとに依存する。この実施例に
おいて、鍔部２は周囲部分より中央領域の方が厚くなっ
ている。FIG. 4 shows a further embodiment of the collar, which has a back surface 3 which is flat in cross section and which, like the front surface 4, is not exactly perpendicular to the pipe 1. The angle between the front and back surfaces is relatively small, preferably between 5 and 10
° but usually greater than 1°, and this relationship depends on the pipe diameter and the pipe wall thickness. In this embodiment, the flange 2 is thicker in the central region than in the peripheral region.

第５図は本発明によって提供されるフランジ継手を示し
、この場合において、２つのパイプ１は端対端で連結さ
れている。パイプ端部には上述したような鍔部２とフラ
ンジ５が設けられており、このフランジ５は、鍔部２に
押圧される面が鍔部２の背面３と同じ形状をなすように
形成されいてる。前記フランジ５にはボルト７を収容す
るための孔９が設けられており、ボルト７はナツト８と
締結されている。継手は、２つの鍔部の間に配置された
環状ガスケット６でシールされている。FIG. 5 shows a flange joint provided by the invention, in which two pipes 1 are connected end-to-end. The pipe end is provided with the above-mentioned flange 2 and flange 5, and the flange 5 is formed so that the surface pressed by the flange 2 has the same shape as the back surface 3 of the flange 2. I'm there. The flange 5 is provided with a hole 9 for accommodating a bolt 7, and the bolt 7 is fastened to a nut 8. The joint is sealed with an annular gasket 6 placed between the two flanges.

本発明は、上記実施例に限定されるものではなく、特許
請求の範囲内で種々の変更を加えることができるのは言
うまでもない。It goes without saying that the present invention is not limited to the above embodiments, and that various changes can be made within the scope of the claims.

【図面の簡単な説明】[Brief explanation of drawings]

第１図は鍔部を形成したパイプ端部の実施例を示す断面
図、 第２図は第１図に示した鍔部を更に加工した状態を示す
断面図、 第３図はパイプ端部の他の実施例を示す断面図、第４図
はパイプ端部の更に他の実施例を示す断面図、 第５図は本発明に係るフランジ継手の一実施例を示す断
面図である。 ｌ・・・パイプ端部　　　２・・・鍔部３・・・背面　
　　　　　４・・・前面５・・・フランジ　　　　６・
・・ガスケット７・・・ボルト　　　　　８・・・ナツ
ト９・・・孔Fig. 1 is a sectional view showing an example of a pipe end with a flange formed thereon, Fig. 2 is a sectional view showing a state in which the flange shown in Fig. 1 has been further processed, and Fig. 3 is a sectional view of a pipe end formed with a flange. FIG. 4 is a sectional view showing still another embodiment of the pipe end; FIG. 5 is a sectional view showing one embodiment of the flange joint according to the present invention. l... Pipe end 2... Flange 3... Back side
4...Front 5...Flange 6.
...Gasket 7...Bolt 8...Nut 9...Hole

Claims (1)

【特許請求の範囲】 １、連結されるべきパイプ端部を具え、パイプ（１）の
長手軸線に対して概ね垂直で平坦な前面（４）を有する
鍔部（２）を前記各パイプに設け、前記パイプ（１）用
の中央孔が設けられたフランジが前記鍔部の後方に配置
されかつ適切な固定手段例えばボルト（７）とナット（
８）でパイプの軸線方向に協働して締結され、前記鍔部
（２）の厚さを鍔部の周囲からパイプの中心に向かって
増加させて、前記鍔部（２）の背面（３）の形状を前記
前面（４）の形状と違なるよう構成したフランジ継手に
おいて、前記鍔部（２）に対して押圧される前記フラン
ジ（５）の表面が、パイプ（１）の長手軸線に対して垂
直な面とならず、前記鍔部（２）の周囲部分に対して押
圧される前記フランジ（５）の部分が前記鍔部（２）の
中央部分に対して押圧される前記フランジ（５）の部分
よりも前記パイプの前記前面（４）に近づくように位置
して、前記鍔部（２）と前記フランジ（５）との対向面
が協働して嵌合するように実質的に同一形状にしたこと
を特徴とするフランジ継手。 ２、前記鍔部（２）に対して押圧される前記フランジ（
５）の表面が、垂直断面において湾曲形状を有したこと
を特徴とする請求項１記載のフランジ継手。 ３、前記鍔部（２）に対して押圧される前記フランジ（
５）の表面は、垂直断面において平坦形状を有すると共
に、前記パイプ（１）の長手軸線に対して僅かな角度を
もつよう形成されたことを特徴とする請求項１記載のフ
ランジ継手。[Claims] 1. Each pipe is provided with a flange (2) having a flat front face (4) that is substantially perpendicular to the longitudinal axis of the pipe (1) and having pipe ends to be connected. , a flange provided with a central hole for said pipe (1) is arranged behind said collar and suitable fastening means such as bolts (7) and nuts (
8), the thickness of the flange (2) is increased from the periphery of the flange toward the center of the pipe, and the back surface (3) of the flange (2) is ) is configured such that the shape of the front surface (4) is different from that of the front surface (4), and the surface of the flange (5) that is pressed against the collar (2) is aligned with the longitudinal axis of the pipe (1). The part of the flange (5) that is not perpendicular to the surface and is pressed against the peripheral part of the flange (2) is the flange (5) that is pressed against the central part of the flange (2). 5), and is located closer to the front surface (4) of the pipe than the portion 5), so that the opposing surfaces of the flange (2) and the flange (5) are substantially fitted together. A flange joint characterized by having the same shape. 2. The flange (2) pressed against the flange (2)
The flange joint according to claim 1, wherein the surface of 5) has a curved shape in a vertical cross section. 3. The flange (which is pressed against the flange (2))
2. The flange joint according to claim 1, wherein the surface of the pipe (5) has a flat shape in a vertical section and is formed at a slight angle with respect to the longitudinal axis of the pipe (1).
JP63039745A 1987-03-05 1988-02-24 Flange joint Pending JPS63231087A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI870983A FI870983A (en) 1987-03-05 1987-03-05 FLAENSAD AENDFOG OCH EN DAERI TILLAEMPLIG FLAENS.
FI870983 1987-03-05

Publications (1)

Publication Number Publication Date
JPS63231087A true JPS63231087A (en) 1988-09-27

Family

ID=8524076

Family Applications (1)

Application Number Title Priority Date Filing Date
JP63039745A Pending JPS63231087A (en) 1987-03-05 1988-02-24 Flange joint

Country Status (12)

Country Link
JP (1) JPS63231087A (en)
KR (1) KR880011519A (en)
CN (1) CN1007751B (en)
DE (1) DE3806162A1 (en)
ES (1) ES2006840A6 (en)
FI (1) FI870983A (en)
FR (1) FR2611853B1 (en)
GB (1) GB2202022B (en)
IT (1) IT1219475B (en)
NO (1) NO880889L (en)
SE (1) SE8800742L (en)
YU (1) YU39388A (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008518173A (en) * 2004-10-29 2008-05-29 マリキャップ オーワイ Pipe fitting
JP2009250407A (en) * 2008-04-10 2009-10-29 Sekisui Chem Co Ltd Connection structure of flange pipe

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* Cited by examiner, † Cited by third party
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DE3914756A1 (en) * 1989-05-05 1990-11-22 Platzer Schwedenbau Gmbh METHOD FOR PRODUCING A PIPE FLANGE CONNECTION
DE19725105A1 (en) * 1996-11-01 1998-05-14 Fischer Georg Rohrleitung collar bushing
FR2787170B1 (en) 1998-12-10 2001-02-16 Eurocopter France SYSTEM FOR THE END-TO-END FIXING OF TWO CONDUITS
CN100532904C (en) * 2007-09-15 2009-08-26 陈荣辉 Connecting structure of conveying pipe
CN100532903C (en) * 2007-09-15 2009-08-26 陈荣辉 Flange device for connecting conveying pipes
JP4551463B2 (en) * 2008-03-24 2010-09-29 新日本製鐵株式会社 Loose flange type flare pipe joint sealability improvement method, flare end face angle control method, loose flange type flare pipe fitting, loose flange type flare pipe fitting steel pipe, loose flange type flare pipe fitting manufacturing method, and steel pipe joining Method
CN101846221A (en) * 2010-05-28 2010-09-29 曹先锋 Adjustable flange
FI124788B (en) 2013-05-03 2015-01-30 Maricap Oy Pipe connection and flange part arrangement for pipe connection
CN104896224A (en) * 2015-06-15 2015-09-09 孙家成 Joint-coating and welding-free pipe connecting device and application method
CN110679439B (en) * 2019-10-26 2021-09-14 浙江尹天环境科技有限公司 Irrigation system for economical greening engineering

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JPS496217B1 (en) * 1970-01-23 1974-02-13
JPS5716276A (en) * 1980-06-20 1982-01-27 Kinzou Ri Fluid linear propulsion ac synchronous motor

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FR674844A (en) * 1928-09-22 1930-02-03 End joint for flexible pipes
GB327403A (en) * 1929-01-01 1930-04-01 Tom Frederick Gray Improvements relating to valves
GB383913A (en) * 1932-06-25 1932-11-24 Babcock & Wilcox Ltd Improvements in and connected with pipe joints
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Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS496217B1 (en) * 1970-01-23 1974-02-13
JPS5716276A (en) * 1980-06-20 1982-01-27 Kinzou Ri Fluid linear propulsion ac synchronous motor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008518173A (en) * 2004-10-29 2008-05-29 マリキャップ オーワイ Pipe fitting
JP2009250407A (en) * 2008-04-10 2009-10-29 Sekisui Chem Co Ltd Connection structure of flange pipe

Also Published As

Publication number Publication date
FI870983A (en) 1988-09-06
GB2202022A (en) 1988-09-14
IT8847680A0 (en) 1988-03-02
SE8800742L (en) 1988-09-06
FR2611853B1 (en) 1990-01-26
YU39388A (en) 1991-02-28
FI870983A0 (en) 1987-03-05
CN88101004A (en) 1988-11-23
KR880011519A (en) 1988-10-28
GB8802979D0 (en) 1988-03-09
CN1007751B (en) 1990-04-25
SE8800742D0 (en) 1988-03-02
DE3806162A1 (en) 1988-09-22
FR2611853A1 (en) 1988-09-09
NO880889D0 (en) 1988-03-01
IT1219475B (en) 1990-05-18
ES2006840A6 (en) 1989-05-16
NO880889L (en) 1988-09-06
GB2202022B (en) 1990-11-21

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