JP2796927B2 - Jig for pressure test - Google Patents
Jig for pressure testInfo
- Publication number
- JP2796927B2 JP2796927B2 JP30751593A JP30751593A JP2796927B2 JP 2796927 B2 JP2796927 B2 JP 2796927B2 JP 30751593 A JP30751593 A JP 30751593A JP 30751593 A JP30751593 A JP 30751593A JP 2796927 B2 JP2796927 B2 JP 2796927B2
- Authority
- JP
- Japan
- Prior art keywords
- jig
- pipe
- test
- pressure
- holding plate
- 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
Landscapes
- Examining Or Testing Airtightness (AREA)
Description
【０００１】[0001]
【産業上の利用分野】この発明は、各種プラントの機
器、配管などの耐圧性や気密性の試験に使用する耐圧試
験用治具の改良に係り、パッキンを周設したピストン部
材を被試験空間内の内圧で可動にして押さえ板の外周端
面に周設したカラーに当接させて該パッキンに締め付け
力を与えて内壁に押圧させ、高いシール性を発揮させた
ことにより、被試験機器、配管の所要部のみを加圧、減
圧可能にした耐圧試験用治具に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of a pressure test jig used for testing pressure resistance and airtightness of equipment and pipes of various plants, and relates to a piston member having a packing provided around a test object space. It is movable by the internal pressure inside, is brought into contact with the collar provided on the outer peripheral end surface of the holding plate, gives a tightening force to the packing, and presses against the inner wall, thereby exhibiting high sealing properties. The present invention relates to a jig for a pressure test in which only required parts can be pressurized and depressurized.
【０００２】[0002]
【従来の技術】各種プラントの機器、配管などに流体を
加圧して導入し、所定の耐圧性や気密性が得られること
を確認する試験において、プラントの機器や配管の全て
を加圧する必要がない場合、例えば、配管入口や出口部
の所要長さ部分を試験する場合、管内に支持用リングを
溶接して、これに遮へい用の円板をパッキンを介してボ
ルト止めし、さらに管端をフランジ板で閉塞し、予め配
置された昇圧口より所要圧力に加圧して試験する方法が
行われていた。2. Description of the Related Art It is necessary to pressurize all plant equipment and piping in a test to confirm that a predetermined pressure resistance and airtightness can be obtained by introducing a fluid under pressure into equipment and piping of various plants. If not, for example, when testing the required length of the pipe inlet or outlet, a support ring is welded in the pipe, a shielding disc is bolted to this with a packing, and the pipe end is further connected. A test method has been performed in which the test piece is closed by a flange plate and pressurized to a required pressure from a pre-arranged pressure increasing port.
【０００３】また、出願人は図５に示す如く、配管１の
管端フランジ部２にボルト止めする密閉用のフランジ部
材３と支持板５を連結軸４に試験予定の所定の間隔で固
定し、さらに連結軸４を外装するように円筒材７を支持
板の直前に設けたシール板６とフランジ部材３とに溶接
し、パッキン８はシール板６の外周部に設けられて支持
板５外周部との間に保持される構成からなる耐圧試験用
治具を開発し、配管１のプラグ９よりフランジ部材とシ
ール板間の試験空間に所定圧力の窒素ガスを充填し、耐
圧性や気密性の試験を行っていた。Further, as shown in FIG. 5, the applicant fixes a sealing flange member 3 bolted to a pipe end flange portion 2 of a pipe 1 and a support plate 5 to a connecting shaft 4 at predetermined intervals to be tested. Further, the cylindrical member 7 is welded to the seal plate 6 and the flange member 3 provided immediately before the support plate so as to cover the connecting shaft 4, and the packing 8 is provided on the outer peripheral portion of the seal plate 6 so that the outer periphery of the support plate 5 Developed a jig for pressure test with a structure held between the pipe and the plug 9 of the pipe 1 and filled the test space between the flange member and the seal plate with nitrogen gas at a predetermined pressure to provide pressure resistance and airtightness. Was being tested.
【０００４】[0004]
【発明が解決しようとする課題】従来の試験方法では、
管内に支持用リングを溶接する必要があり、溶接までの
間、他のシール機構で仮封止する必要があるほか、かか
る簡単なシール機構では漏洩が発生しやすく、高圧力に
耐えられずにパッキンなどが破損する問題があった。ま
た、図５の治具では試験区間だけ加圧することが可能で
あるが、シール板だけで支持されるシール機構では漏洩
が発生しやすく、高圧力に耐えられずにパッキンなどが
破損する問題があった。In the conventional test method,
It is necessary to weld the support ring inside the pipe, it is necessary to temporarily seal it with another seal mechanism until welding, and such a simple seal mechanism tends to leak and can not withstand high pressure There was a problem that the packing was damaged. Although the jig shown in FIG. 5 can pressurize only the test section, the sealing mechanism supported only by the seal plate is liable to leak, and cannot withstand high pressure. there were.
【０００５】この発明は、各種プラントの機器、配管な
どの耐圧性や気密性の試験に使用する耐圧試験用治具に
おいて、取り扱い並びに装着が簡単で、任意の所要区間
を密閉して同部内を加圧可能であり、高圧力であっても
漏洩が発生せず、パッキンの損傷もなく、長期間にわた
って安定した試験が可能な耐圧試験用治具の提供を目的
としている。The present invention relates to a jig for a pressure test used for testing pressure resistance and airtightness of equipment and pipes of various plants, which is easy to handle and mount, and seals any required section to seal the inside of the same. An object of the present invention is to provide a jig for a pressure test that can be pressurized, does not leak even at a high pressure, does not damage the packing, and can perform a stable test for a long period of time.
【０００６】[0006]
【課題を解決するための手段】この発明は、配管の管端
入口から所要長さの配管内を試験するため、被試験機材
の管端に設けたフランジ部に固着保持する密閉用フラン
ジ部材と被試験空間内に挿入される押さえ板を連結軸で
所定間隔に固着保持し、連結軸に遊嵌した円筒材にＯリ
ングを介在させてピストン部材を摺動可能に外嵌挿し、
被試験空間内に嵌挿入される該ピストン部材の外周部に
配置したパッキンの端面に、押さえ板の外周端面に周設
したカラー端面が当接可能にピストン部材と押さえ板が
位置決めされたことを特徴とする耐圧試験用治具であ
る。また、この発明は、配管の任意位置に配置して治具
内を昇圧させるため、一対の押さえ板が連結軸で所定間
隔に固着保持され、連結軸外周あるいはこれに遊嵌した
円筒材にＯリングを介在させて一対のピストン部材を摺
動可能に外嵌挿し、被試験空間内に嵌挿入される該ピス
トン部材の外周部に配置したパッキンの端面に、押さえ
板の外周端面に周設したカラー端面が当接可能にピスト
ン部材と押さえ板が位置決めされたことを特徴とする耐
圧試験用治具である。SUMMARY OF THE INVENTION The present invention relates to a pipe end of a pipe.
In order to test the required length of piping from the inlet, the equipment under test
Sealing franc fixedly held to the flange provided at the end of the pipe
The joint member and the holding plate inserted into the test
It is fixedly held at a predetermined interval, and is
The piston member is slidably inserted externally with the
On the outer periphery of the piston member inserted into the space under test
Provided on the end face of the placed packing and on the outer peripheral end face of the holding plate
The piston member and the holding plate can contact the
It is a jig for a pressure resistance test characterized by being positioned . Also, the present invention provides a jig which is arranged at an arbitrary position of a pipe.
To raise the pressure inside, a pair of holding plates are
Fixedly held in the gap and loosely fitted to the outer circumference of the connection shaft or this
Slide a pair of piston members with an O-ring
The piston which is movably inserted into the outside and is inserted into the space under test.
Hold down the end face of the packing placed on the outer periphery of the ton member.
The fixed end face of the collar on the outer end face of the plate can be fixed
A pressure test jig characterized in that a positioning member and a holding plate are positioned .
【０００７】[0007]
【作用】この発明による耐圧試験用治具は、所要の被試
験空間を形成するために、連結軸で固定する押さえ板に
対向配置するパッキンを周設したピストン部材を被試験
空間内の内圧で可動にして押さえ板の外周端面に周設し
たカラーに当接させて該パッキンに締め付け力を与えて
内壁に押圧させ、高いシール性を発揮させることがで
き、高圧力であっても漏洩が発生せず、パッキンの損傷
もなく、長期間にわたって安定した試験が可能となり、
被試験機器、配管の所要部のみを加圧あるいは減圧で
き、必要箇所のみ試験を行うことができる。According to the present invention, in order to form a required test space, a piston member having a packing provided around a holding plate fixed by a connecting shaft is provided with a piston member around the pressurizing plate. It is movable, and it comes into contact with the collar provided on the outer peripheral end surface of the holding plate to apply a tightening force to the packing and press it against the inner wall, so that high sealing performance can be exhibited, and leakage occurs even at high pressure Without any damage to the packing and stable testing over a long period of time.
Only the required part of the equipment under test and the piping can be pressurized or depressurized, and the test can be performed only at the required part.
【０００８】[0008]
実施例１ 図２に示すこの発明の耐圧試験用治具は、配管１の管端
入口から所要長さの配管内を試験するためのもので、配
管１の管端フランジ部２に密閉用フランジ部材１０をガ
スケット１１を介してボルト止めするが、フランジ部材
１０中心部に貫通しナットで止着された連結軸１２は管
内に挿入され、その軸先端には押さえ板１３が螺着され
る。連結軸１２にはこれを外装するよう円筒材１４が配
置されフランジ部材１０内面に溶接にて立設してあり、
円筒材１４の押さえ板１３側にはピストン部材１５がＯ
リング１６を介在させて摺動可能に外嵌挿され、また、
円筒材１４に溶接されたストッパー１８でフランジ部材
１０側への移動を規制してあり、ピストン部材１５の外
周面にはパッキン１７が外嵌挿してあり、かかるピスト
ン部材１５は円筒材１４外周面と配管１内面との間に形
成されるシリンダ内に嵌入される。押さえ板１３には外
周端面にカラー１９が周設してあり、カラー１９端面は
前記パッキン１７端面に当接するよう位置決めしてあ
る。Embodiment 1 A jig for a pressure test of the present invention shown in FIG. 2 is for testing the inside of a pipe of a required length from a pipe end inlet of a pipe 1, and a sealing flange is provided on a pipe end flange portion 2 of the pipe 1. The member 10 is bolted through a gasket 11, and a connection shaft 12 that penetrates the center of the flange member 10 and is fixed by a nut is inserted into the pipe, and a holding plate 13 is screwed to the tip of the shaft. A cylindrical member 14 is arranged on the connecting shaft 12 so as to cover the connecting shaft 12 and is erected on the inner surface of the flange member 10 by welding.
A piston member 15 is provided on the cylindrical member 14 on the side of the holding plate 13.
It is slidably inserted with the ring 16 interposed, and
A stopper 18 welded to the cylindrical member 14 regulates the movement toward the flange member 10 side, and a packing 17 is externally fitted on the outer peripheral surface of the piston member 15. And a pipe 1 is fitted into a cylinder formed between the pipe 1 and the inner surface. A collar 19 is provided around the outer peripheral end surface of the holding plate 13, and the end surface of the collar 19 is positioned so as to contact the end surface of the packing 17.
【０００９】上記の構成において、フランジ部材１０に
設けたプラグ２０に図１に示す如く、耐圧試験用の高圧
窒素ガスボンベ２１からの配管を接続して、耐圧試験用
治具内、すなわち、フランジ部材１０とピストン部材１
５と間の被試験空間内に所定の高圧窒素ガスを導入し
て、所定の耐圧性や気密性の試験を行う。被試験空間内
の圧力が高まった際に、ピストン部材１５は押さえ板１
３側へ僅かに移動してパッキン１７端面がカラー１９端
面に押圧され、パッキン１７外周面が配管１の内周面に
強く当接し、極めて気密性の高いシール機構を形成す
る。In the above structure, as shown in FIG. 1, a pipe from a high-pressure nitrogen gas cylinder 21 for a pressure test is connected to a plug 20 provided on the flange member 10 so as to be connected to the inside of the jig for the pressure test, that is, the flange member. 10 and piston member 1
A predetermined high-pressure nitrogen gas is introduced into the space to be tested between 5 and 5, and a predetermined pressure resistance and airtightness test is performed. When the pressure in the test space increases, the piston member 15
When the packing 17 moves slightly to the side 3 and the end surface of the packing 17 is pressed against the end surface of the collar 19, the outer peripheral surface of the packing 17 strongly contacts the inner peripheral surface of the pipe 1, thereby forming a highly airtight sealing mechanism.
【００１０】実施例２ 図３に示すこの発明の耐圧試験用治具は、配管１の任意
位置に配置して治具内を昇圧させることができるもの
で、外周端面にカラー３３を周設した一対の押さえ板３
１，３２をこれらを貫通する連結軸３０の両端部に螺着
配置し、さらに連結軸３０には円筒材３６が外装配置さ
れ、各押さえ板３１，３２に対向するようピストン部材
３４，３５をＯリング３７を介在させて摺動可能に外嵌
挿してあり、又、各ピストン部材３３，３４の外周面に
外嵌挿したパッキン３８の端面に前記カラー３３端面が
当接するよう円筒材３６に設けたストッパー３９，３９
でピストン部材３３，３４を位置決めしている。配管１
に設けたプラグ９から高圧窒素ガスをピストン部材３
４，３５間の被試験空間内に導入すると、各ピストン部
材３４，３５は対向する押さえ板３１，３２側へ僅かに
移動して各パッキン３８，３８端面がカラー３３，３３
端面に押圧され、パッキン３８外周面が配管１の内周面
に強く当接し、極めて気密性の高いシール機構を形成す
る。Embodiment 2 A jig for a pressure test according to the present invention shown in FIG. 3 can be arranged at an arbitrary position in a pipe 1 to increase the pressure inside the jig, and a collar 33 is provided around the outer peripheral end surface. A pair of holding plates 3
1 and 32 are screwed to both ends of a connecting shaft 30 passing therethrough, and a cylindrical member 36 is externally arranged on the connecting shaft 30. Piston members 34 and 35 are opposed to the holding plates 31 and 32, respectively. The collar 33 is slidably fitted outside with an O-ring 37 interposed therebetween, and is fitted to the cylindrical member 36 so that the end face of the collar 33 comes into contact with the end face of the packing 38 fitted to the outer peripheral face of each piston member 33, 34. Stoppers 39, 39 provided
Are used to position the piston members 33 and 34. Piping 1
High pressure nitrogen gas from the plug 9 provided in the piston member 3
When the piston members 34 and 35 are introduced into the space to be tested, the piston members 34 and 35 slightly move toward the opposing holding plates 31 and 32, and the end faces of the packings 38 and 38 become collars 33 and 33.
The outer peripheral surface of the packing 38 is strongly pressed against the inner peripheral surface of the pipe 1 by being pressed against the end surface, thereby forming an extremely airtight sealing mechanism.
【００１１】実施例３ 図４に示すこの発明の耐圧試験用治具は、配管１の任意
位置に配置して治具内を減圧することができる治具であ
り、外周端面にカラー４３を周設した一対の押さえ板４
１，４２をカラー４３が相互に逆向きとなるようかつ所
定間隔を保持するようにこれらを貫通する連結軸４０の
所要位置に溶接で固定し、連結軸４０の両端部に螺着配
置したストッパー４９，４９と各押さえ板４１，４２と
の間には、ピストン部材４４，４５を対向する押さえ板
４１，４２側へ摺動移動可能に連結軸４０の外周面にＯ
リング３７を介在させて外嵌挿してあり、各ピストン部
材４４，４５の外周面に外嵌挿したパッキン４８の端面
に前記カラー４３端面が当接する構成からなる。Embodiment 3 A jig for a pressure test of the present invention shown in FIG. 4 is a jig which can be arranged at an arbitrary position in a pipe 1 to reduce the pressure inside the jig. A pair of holding plates 4
The stoppers 1 and 42 are fixed by welding to required positions of a connecting shaft 40 penetrating the collars 43 so that the collars 43 are opposite to each other and maintain a predetermined interval, and are screwed to both ends of the connecting shaft 40. Between the press plates 49, 49 and the press plates 41, 42, the piston members 44, 45 are slidably moved toward the opposing press plates 41, 42 on the outer peripheral surface of the connection shaft 40.
The collar 43 is inserted and fitted externally with the ring 37 interposed therebetween, and the end face of the collar 43 comes into contact with the end face of the packing 48 which is inserted and fitted on the outer peripheral surfaces of the piston members 44 and 45.
【００１２】耐圧試験用治具外の配管１に設けたプラグ
９1，９2から高圧窒素ガスを管内に導入すると、各ピス
トン部材４４，４５は治具中心側へ押圧されて、パッキ
ン４８端面が押さえ板４１，４２のカラー４３端面に押
圧され、パッキン４８外周面が配管１の内周面に強く当
接し、極めて気密性の高いシール機構を形成する。ま
た、治具内の一対の押さえ板４１，４２間の空間を配管
１に設けたプラグ９3から減圧すると押さえ板４１，４
２に設けた連通孔４６，４６から各ピストン部材４４，
４５と押さえ板４１，４２間の空間も減圧されて、各ピ
ストン部材４４，４５は治具中心側へ吸引されて、パッ
キン４８端面が押さえ板４１，４２のカラー４２端面に
押圧され、パッキン４８外周面が配管１の内周面に強く
当接し、極めて気密性の高いシール機構を形成する。When high-pressure nitrogen gas is introduced into the pipe 1 from the plugs 9 1 and 9 2 provided in the pipe 1 outside the jig for pressure test, the piston members 44 and 45 are pressed toward the center of the jig, and the end faces of the packing 48 are pressed. Is pressed against the end surfaces of the collars 43 of the holding plates 41 and 42, and the outer peripheral surface of the packing 48 strongly contacts the inner peripheral surface of the pipe 1, thereby forming a very highly airtight sealing mechanism. Also, pressing and depressurizing the space between the pair of presser plates 41, 42 in the jig from the plug 9 3 provided in the pipe 1 plate 41 and 42
2, through each of the piston members 44,
The pressure between the space 45 and the holding plates 41 and 42 is also reduced, and the piston members 44 and 45 are sucked toward the center of the jig, and the end surfaces of the packings 48 are pressed against the end surfaces of the collars 42 of the holding plates 41 and 42, and the packings 48. The outer peripheral surface strongly contacts the inner peripheral surface of the pipe 1 to form a highly airtight sealing mechanism.
【００１３】[0013]
【発明の効果】この発明による耐圧試験用治具は、所要
の被試験空間を形成するために、連結軸で固定する押さ
え板に対向配置するパッキンを周設したピストン部材と
で構成され、一体型の治具として取り扱いが容易であ
り、被試験機器、配管の任意の箇所に設置できる。ま
た、押さえ板に対向配置するパッキンを周設したピスト
ン部材を被試験空間内の内圧で可動にして押さえ板の外
周端面に周設したカラーに当接させて該パッキンに締め
付け力を与えて内壁に押圧させ、高いシール性を発揮さ
せることができ、高圧力であっても漏洩が発生せず、パ
ッキンの損傷もなく、長期間にわたって安定した試験が
可能となる。さらに、被試験機器、配管の全体を加圧す
る必要がなく、その所要部のみを加圧あるいは減圧で
き、必要箇所のみ試験を行うことができる。また、この
治具を配置した配管内の流体流れを一時的に止めること
もできる。According to the present invention, a pressure test jig according to the present invention comprises a piston member having a packing provided around a pressing plate fixed by a connecting shaft so as to form a required test space. It is easy to handle as a body jig and can be installed at any location in the equipment under test and piping. Further, a piston member provided with a packing provided around the holding plate is made movable by an internal pressure in the space to be tested, and is brought into contact with a collar provided on the outer peripheral end surface of the holding plate to apply a tightening force to the packing to thereby provide an inner wall. , It is possible to exhibit a high sealing property, no leakage occurs even at high pressure, no damage to the packing, and a stable test over a long period of time. Further, it is not necessary to pressurize the whole of the device under test and the piping, and only the required portion can be pressurized or depressurized, and the test can be performed only at the required portion. Further, the fluid flow in the pipe in which the jig is arranged can be temporarily stopped.
【図１】耐圧試験用治具を用いた耐圧性試験を行うため
のガス流れを示す流路説明図である。FIG. 1 is a flow chart illustrating a gas flow for performing a pressure resistance test using a pressure test jig.
【図２】この発明による耐圧試験用治具の構成を示す縦
断説明図である。FIG. 2 is an explanatory longitudinal sectional view showing a configuration of a jig for a pressure resistance test according to the present invention.
【図３】この発明による耐圧試験用治具の他の構成を示
す縦断説明図である。FIG. 3 is an explanatory longitudinal sectional view showing another configuration of the jig for the pressure resistance test according to the present invention.
【図４】この発明による耐圧試験用治具の他の構成を示
す縦断説明図である。FIG. 4 is an explanatory longitudinal sectional view showing another configuration of the jig for the pressure resistance test according to the present invention.
【図５】従来の耐圧試験用治具の構成を示す縦断説明図
である。FIG. 5 is an explanatory longitudinal sectional view showing the configuration of a conventional jig for a pressure resistance test.
１ 配管 ２ 管端フランジ部 ３ フランジ部材 ４ 連結軸 ５ 支持板 ６ シール板 ７ 円筒材 ８ パッキン ９，９1，９2，９3 プラグ １０ フランジ部材 １１ ガスケット １２，３０，４０ 連結軸 １３，３１，３２，４１，４２ 押さえ板 １４，３６ 円筒材 １５，３４，３５，４４，４５ ピストン部材 １６，３７，４７ Ｏリング １７，３８，４８ パッキン １８，３９，４９ ストッパー １９，３３，４３ カラー ２０ プラグ ２１ 高圧窒素ガスボンベ ４６ 連通孔DESCRIPTION OF SYMBOLS 1 Piping 2 Pipe end flange part 3 Flange member 4 Connecting shaft 5 Support plate 6 Seal plate 7 Cylindrical material 8 Packing 9, 9 1 , 9 2 , 9 3 Plug 10 Flange member 11 Gasket 12, 30, 40 Connecting shaft 13, 31 , 32,41,42 Pressing plate 14,36 Cylindrical material 15,34,35,44,45 Piston member 16,37,47 O-ring 17,38,48 Packing 18,39,49 Stopper 19,33,43 Collar 20 Plug 21 High-pressure nitrogen gas cylinder 46 Communication hole
───────────────────────────────────────────────────── フロントページの続き (72)発明者 佐原 一彌 兵庫県尼崎市扶桑町１番10号 住友精密 工業株式会社内 (58)調査した分野(Int.Cl.6，ＤＢ名) G01M 3/28──────────────────────────────────────────────────続 き Continuing from the front page (72) Inventor Kazuya Sahara 1-10 Fuso-cho, Amagasaki-shi, Hyogo Sumitomo Precision Industries, Ltd. (58) Field surveyed (Int. Cl. 6 , DB name) G01M 3 / 28
Claims (2)
試験するため、被試験機材の管端に設けたフランジ部に
固着保持する密閉用フランジ部材と被試験空間内に挿入
される押さえ板を連結軸で所定間隔に固着保持し、連結
軸に遊嵌した円筒材にＯリングを介在させてピストン部
材を摺動可能に外嵌挿し、被試験空間内に嵌挿入される
該ピストン部材の外周部に配置したパッキンの端面に、
押さえ板の外周端面に周設したカラー端面が当接可能に
ピストン部材と押さえ板が位置決めされたことを特徴と
する耐圧試験用治具。1. A pipe having a required length from a pipe end inlet of a pipe.
For testing, attach the flange to the end of the equipment under test.
Inserts into the space under test with a sealing flange member that is fixed and held
The holding plate is fixed and held at
Piston portion with O-ring interposed in cylindrical material loosely fitted to shaft
Material is slidably inserted outside and inserted into the space under test
On the end face of the packing arranged on the outer periphery of the piston member,
Collar end face installed around the outer peripheral end face of the holding plate can be contacted
A jig for a pressure test, wherein a piston member and a holding plate are positioned .
させるため、一対の押さえ板が連結軸で所定間隔に固着
保持され、連結軸外周あるいはこれに遊嵌した円筒材に
Ｏリングを介在させて一対のピストン部材を摺動可能に
外嵌挿し、被試験空間内に嵌挿入される該ピストン部材
の外周部に配置したパッキンの端面に、押さえ板の外周
端面に周設したカラー端面が当接可能にピストン部材と
押さえ板が位置決めされたことを特徴とする耐圧試験用
治具。2. The pressure inside the jig is increased by arranging it at an arbitrary position in the piping.
A pair of holding plates are fixed at predetermined intervals by the connecting shaft
It is held on the outer circumference of the connecting shaft or on the cylindrical material
Allows a pair of piston members to slide with an O-ring interposed
The piston member which is externally inserted and inserted into the space to be tested.
The outer periphery of the holding plate is attached to the end face of the packing
The collar end surface provided around the end surface can be
A jig for a pressure test, wherein a holding plate is positioned .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30751593A JP2796927B2 (en) | 1993-11-12 | 1993-11-12 | Jig for pressure test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30751593A JP2796927B2 (en) | 1993-11-12 | 1993-11-12 | Jig for pressure test |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH07140035A JPH07140035A (en) | 1995-06-02 |
| JP2796927B2 true JP2796927B2 (en) | 1998-09-10 |
Family
ID=17970013
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP30751593A Expired - Fee Related JP2796927B2 (en) | 1993-11-12 | 1993-11-12 | Jig for pressure test |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2796927B2 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2348965A (en) * | 1999-04-16 | 2000-10-18 | Honda Engineering Europ Limite | Method and apparatus for detecting leaks |
| AU2007260532B2 (en) * | 2006-06-12 | 2013-06-06 | Car-Ber Investments Inc | Nozzle testing apparatus and method |
| JP4948570B2 (en) * | 2009-06-10 | 2012-06-06 | 成田空港給油施設株式会社 | High pressure pipe closing jig |
| JP4653254B1 (en) * | 2010-07-12 | 2011-03-16 | 有限会社大和設備 | Drainage pipe leak test equipment |
| CN101915646B (en) * | 2010-08-06 | 2012-05-30 | 浙江球冠特种线缆有限公司 | Tightness test device of metal sheath |
| CN103557399B (en) * | 2013-11-14 | 2015-09-30 | 中石化第四建设有限公司 | Card-type quick pressure tester for pipe orifice |
-
1993
- 1993-11-12 JP JP30751593A patent/JP2796927B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH07140035A (en) | 1995-06-02 |
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