JP2001153249A - Cover flange for diffusion valve - Google Patents
Cover flange for diffusion valveInfo
- Publication number
- JP2001153249A JP2001153249A JP33885299A JP33885299A JP2001153249A JP 2001153249 A JP2001153249 A JP 2001153249A JP 33885299 A JP33885299 A JP 33885299A JP 33885299 A JP33885299 A JP 33885299A JP 2001153249 A JP2001153249 A JP 2001153249A
- Authority
- JP
- Japan
- Prior art keywords
- valve
- lid
- plug
- flange
- diffusion
- 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
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
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Valve Housings (AREA)
- Taps Or Cocks (AREA)
- Indication Of The Valve Opening Or Closing Status (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、放散弁のフタフラ
ンジに関し、ガス輸送用管路等に使用するボール弁に装
着する放散弁に係るものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lid flange of a release valve, and more particularly to a release valve mounted on a ball valve used for a gas transport pipe or the like.
【０００２】[0002]
【従来の技術】この種のボール弁としては、例えば図４
〜図７に示すようなものがある。図４〜図７において、
弁箱１は、両側に配管（図示省略）に対する挿口２を有
し、各挿口２の奥端側に弁箱内空間３と挿口２とを連通
する弁箱ポート４を有し、弁箱ポート４の開口周縁部に
弁箱シート５を設けている。2. Description of the Related Art As a ball valve of this type, for example, FIG.
To FIG. 7. 4 to 7,
The valve box 1 has openings 2 for pipes (not shown) on both sides, and a valve box port 4 communicating the space 3 in the valve box and the opening 2 on the far end side of each opening 2. A valve box sheet 5 is provided on the periphery of the opening of the valve box port 4.
【０００３】弁箱内空間３には弁棒６の軸心廻りに回転
する弁体７を配置しており、弁体７は弁箱１の両弁箱ポ
ート４間を連通する弁体流路８を有し、弁体流路８に直
交する方向の両側位置に、弁箱シート５に圧接する弁体
シート９を設けている。弁箱１には、弁箱ポート４に連
通して放散管１０を接続し、給脂口１１に連通して給脂
管１２を接続している。放散管１０には放散弁１３を接
続し、放散弁１３のフランジ１３ａにフタフランジ１４
を複数の固定ボルト１５で装着して放散管１０を気密に
閉塞している。A valve body 7 that rotates around the axis of a valve rod 6 is disposed in the valve box space 3, and the valve element 7 is a valve body passage communicating between both valve box ports 4 of the valve box 1. A valve body sheet 9 that is in pressure contact with the valve box sheet 5 is provided at both sides in a direction orthogonal to the valve body flow path 8. The valve box 1 is connected to a diffusion tube 10 in communication with the valve box port 4, and is connected to a greasing tube 12 in communication with a greasing port 11. A dispersion valve 13 is connected to the dispersion tube 10, and a lid flange 14 a is attached to a flange 13 a of the dispersion valve 13.
Is mounted with a plurality of fixing bolts 15 to hermetically close the diffusion tube 10.
【０００４】[0004]
【発明が解決しようとする課題】この放散管１０は、ガ
ス輸送用管路において工事を行なう場合に、弁箱１に接
続した配管内のガスを大気中に放散するものであり、放
散作業時にはフタフランジ１４を取り外し、放散弁１３
を開放してガスを放散する。また、放散するガス圧が高
い場合には、放散弁１３にガバナ（調圧装置）を取り付
ける。この場合にはフタフランジ１４に換えて、図８に
示すように、専用フタフランジ１６を放散弁１３に装着
し、専用フタフランジ１６のネジ孔１７にガバナ取り付
け用のカムロックを有するガバナ取付用治具１８を装着
し、ガバナ取付用治具１８にガバナを取り付ける。ま
た、点検等において、配管内の圧力を検出する場合に
は、圧力検知用カプラを取り付けるための専用フタフラ
ンジに、フタフランジ１４を取り替えていた。The dissipating pipe 10 is for dispersing the gas in the pipe connected to the valve box 1 to the atmosphere when the construction is carried out in the gas transport pipeline. Remove the lid flange 14 and release the release valve 13
To release the gas. When the pressure of the gas to be dissipated is high, a governor (pressure regulating device) is attached to the dissipating valve 13. In this case, instead of the lid flange 14, as shown in FIG. 8, a dedicated lid flange 16 is mounted on the release valve 13, and a governor mounting jig having a cam lock for mounting the governor in the screw hole 17 of the dedicated lid flange 16 is provided. The tool 18 is mounted, and the governor is mounted on the governor mounting jig 18. In addition, when the pressure in the piping is detected during inspection or the like, the cover flange 14 is replaced with a cover flange for attaching a pressure detecting coupler.
【０００５】しかし、ガバナを装着したガスの放散や圧
力検出を行なう場合には、ガバナの装着、圧力検知用カ
プラの装着に際して、複数の固定ボルト１５の着脱作業
を伴うフランジ１４の着脱操作を必要とするために、手
数が掛かる問題があった。本発明は上記した課題を解決
するものであり、ガバナを装着したガスの放散や圧力検
出を容易に行なうことができる放散弁のフタフランジを
提供することを目的とする。[0005] However, in the case of performing gas emission and pressure detection with a governor attached, it is necessary to attach / detach the flange 14 with attaching / detaching a plurality of fixing bolts 15 when attaching the governor and attaching the pressure detecting coupler. , There is a problem that it takes time and effort. An object of the present invention is to solve the above-mentioned problem, and an object of the present invention is to provide a lid flange of a radiation valve which can easily perform gas radiation and pressure detection with a governor attached.
【０００６】[0006]
【課題を解決するための手段】上記した課題を解決する
ために、請求項１に係る本発明の放散弁のフタフランジ
は、ガス管路に介装するボール弁の放散管に装着した放
散弁に設けるものであって、放散弁に放出口を閉塞して
フランジ接合する蓋体と、ガバナ取付用治具を装着する
ねじ孔を兼ね、蓋体に表裏を貫通して形成した放散口
と、放散口に螺合装着する放散口プラグと、蓋体に表裏
を連通して形成した圧力検出用孔と、圧力検出用孔に装
着した圧力検出用カプラとを備えたものである。In order to solve the above-mentioned problems, the lid flange of the diffusion valve according to the present invention is provided with a diffusion valve mounted on a diffusion tube of a ball valve interposed in a gas pipeline. A lid that closes the discharge port to the release valve and flange-joins it, and also serves as a screw hole for mounting a governor mounting jig, and a release port formed by penetrating the front and back of the lid, It is provided with a radiation opening plug screwed into the radiation opening, a pressure detection hole formed by communicating the front and back with the lid, and a pressure detection coupler mounted in the pressure detection hole.
【０００７】上記した構成により、放散管を通してガス
管路のガスを放散する場合には、蓋体から放散口プラグ
を取り外して放散口を開放し、放散弁を開栓する。この
とき、放散するガスを減圧する場合には、放散口にガバ
ナ取付用治具を螺合装着し、ガバナ取付用治具にガバナ
を装着する。放散管を通してガス管路のガス圧を検知す
る場合には、圧力検出用カプラに圧力検出手段を装着す
る。When the gas in the gas pipe is released through the release pipe with the above configuration, the release port is opened by removing the release port plug from the lid, and the release valve is opened. At this time, when decompressing the gas to be diffused, a governor mounting jig is screwed into the radiation opening, and a governor is mounted on the governor mounting jig. When the gas pressure in the gas pipeline is detected through the diverging tube, a pressure detecting means is attached to the pressure detecting coupler.
【０００８】したがって、ガスの放散、ガバナの装着、
圧力検出の各操作が、フランジ接合した蓋体を取り外す
作業を伴うことなく、放散口プラグを蓋体との螺合を解
除して取り外すだけで、容易に行なうことができ、従来
のように、各操作に応じてフランジを専用フランジに取
り替える必要もない。請求項２に係る本発明の放散弁の
フタフランジは、先端側に形成した第１雄ねじ部で放散
口に螺合装着し、頭端側に第２雄ねじ部を有する放散口
プラグと、内周面に形成した雌ねじ部で放散口プラグの
第２雄ねじ部に螺合し、放散口プラグを覆って装着する
放散口キャップと、蓋体と放散口キャップの開口端面と
の間を気密にシールするＯリングとを備えたものであ
る。[0008] Therefore, gas emission, governor mounting,
Each operation of pressure detection can be easily performed simply by unscrewing the vent plug with the lid without removing the flange-joined lid, and removing it as before. There is no need to replace the flange with a dedicated flange for each operation. The lid flange of the release valve according to the second aspect of the present invention is provided with a first externally threaded portion formed on the distal end side, which is screwed into the diffusion opening, and which has a second externally threaded portion on the head end side; A female screw portion formed on the surface is screwed into the second male screw portion of the diffuser plug, and a hermetic seal is provided between the lid and the open end surface of the diffuser cap to hermetically seal the cover. And an O-ring.
【０００９】上記した構成により、放散口は放散口プラ
グの周囲を覆う放散口キャップとＯリングによって封止
するので、放散口プラグの装着に際してシール剤を塗布
する必要がなく、放散口キャップは雌ねじ部を放散口プ
ラグの第２雄ねじ部に螺合させることにより容易に装着
することができ、シール剤を塗布する手間を伴うことな
く、容易にシール作業を行なうことができる。[0009] With the above structure, the outlet is sealed by the O-ring and the outlet cap that covers the periphery of the outlet plug. Therefore, it is not necessary to apply a sealant when mounting the outlet plug, and the outlet cap is provided with a female screw. The part can be easily mounted by screwing it into the second external thread part of the vent plug, and the sealing operation can be easily performed without the trouble of applying the sealant.
【００１０】[0010]
【発明の実施の形態】以下、本発明の実施の形態を図面
に基づいて説明する。先に図４〜図８において説明した
ものと同様の作用を行なう部材については同一番号を付
して説明を省略する。図１〜図３において、放散弁１３
には、その放出口を閉塞して蓋体２１を複数の固定ボル
ト１５でフランジ接合している。蓋体２１は表裏を貫通
して形成した放散口２２を有しており、放散口２２は内
周面に雌ねじ部２２ａを有し、雌ねじ部２２ａに螺合す
る放散口プラグ２３で閉栓している。Embodiments of the present invention will be described below with reference to the drawings. Members performing the same operations as those described above with reference to FIGS. 4 to 8 are denoted by the same reference numerals, and description thereof is omitted. In FIG. 1 to FIG.
The cover 21 is flanged with a plurality of fixing bolts 15 by closing the discharge port. The lid body 21 has a radiation port 22 formed penetrating the front and back. The radiation port 22 has a female screw portion 22a on the inner peripheral surface, and is closed by a radiation port plug 23 screwed into the female screw portion 22a. I have.
【００１１】図２に示すように、放散口プラグ２３は、
先端側に放散口に螺合する第１雄ねじ部２３ａを形成
し、頭部２３ｃに第２雄ねじ部２３ｂを形成している。
放散口プラグ２３を覆って装着する放散口キャップ２４
は、内周面に周方向に沿って適当間隔で形成した凸部２
４ａと、放散口プラグの第２雄ねじ部２３ｂに螺合する
雌ねじ部２４ｂとを形成し、頭端に開閉用治具のソケッ
ト部に嵌合するプラグ部２４ｃを形成している。放散口
プラグ２３は頭部２３ｃに凸部２４ａが通過する凹部
（図示省略）を形成し、頭端に開閉用治具のソケット部
に嵌合するプラグ部２３ｄを形成している。As shown in FIG. 2, the outlet plug 23 is
A first male screw portion 23a that is screwed into the emission port is formed on the distal end side, and a second male screw portion 23b is formed on the head portion 23c.
Emission cap 24 to cover emission plug 23
Are convex portions 2 formed on the inner peripheral surface at appropriate intervals along the circumferential direction.
4a and a female screw portion 24b that is screwed to the second male screw portion 23b of the outlet plug, and a plug portion 24c that fits into the socket portion of the opening / closing jig is formed at the head end. The vent plug 23 has a concave portion (not shown) in the head portion 23c through which the convex portion 24a passes, and a plug portion 23d fitted in the socket portion of the opening / closing jig at the head end.
【００１２】蓋体２１は放散口２２の周囲に環状溝２１
ａを有し、環状溝２１ａに配置したＯリング２５が放散
口キャップ２４の開口端面と蓋体２１の間を気密にシー
ルしている。図３に示すように、放散口２２は、ガバナ
取付用治具２６を装着するねじ孔を兼ねている。蓋体２
１は表裏を連通して形成した圧力検出用孔２７を有し、
圧力検出用孔に連通する圧力検出用カプラ２８を蓋体２
１に螺合装着している。圧力検出用カプラ２８は、Ｏリ
ング２８ａを介して蓋体２１に気密に装着する自動閉栓
構造を有するカプラ本体２８ｂと、カプラ本体２８ｂを
覆って装着するカバー２８ｃとからなる。The cover 21 has an annular groove 21 around the radiation port 22.
a, and an O-ring 25 disposed in the annular groove 21a hermetically seals the gap between the opening end face of the outlet cap 24 and the lid 21. As shown in FIG. 3, the radiation opening 22 also serves as a screw hole for mounting a governor mounting jig 26. Lid 2
1 has a pressure detection hole 27 formed by communicating the front and back,
The pressure detecting coupler 28 communicating with the pressure detecting hole is
1 is screwed. The pressure detecting coupler 28 includes a coupler body 28b having an automatic closing structure that is hermetically attached to the lid 21 via an O-ring 28a, and a cover 28c that is attached so as to cover the coupler body 28b.
【００１３】上記した構成により、放散管１０を通して
ガス管路のガスを放散する場合には、蓋体２１から放散
口プラグ２３を取り外して放散口２２を開放し、放散弁
１３を開栓する。このとき、放散するガスを減圧する場
合には、図３に示すように、放散口２２にガバナ取付用
治具２６を螺合装着し、ガバナ取付用治具２６にガバナ
を装着する。With the above-described configuration, when the gas in the gas pipe is to be diffused through the diffusion pipe 10, the diffusion port plug 23 is removed from the lid 21, the diffusion port 22 is opened, and the diffusion valve 13 is opened. At this time, when decompressing the gas to be diffused, as shown in FIG. 3, a governor mounting jig 26 is screwed into the radiation port 22, and a governor is mounted on the governor mounting jig 26.
【００１４】放散管１０を通してガス管路のガス圧を検
知する場合には、カバー２８ｃを外して圧力検出用カプ
ラ２８に圧力検出手段を装着する。したがって、ガスの
放散、ガバナの装着、圧力検出の各操作が、複数の固定
ボルト１５でフランジ接合した蓋体２１を取り外す作業
を伴うことなく、放散口プラグ２３を蓋体２１との螺合
を解除して取り外すだけで、容易に行なうことができ
る。このため、従来のように、各操作に応じてフランジ
を専用フランジに取り替える必要もない。When detecting the gas pressure in the gas pipe through the diffusion pipe 10, the cover 28c is removed and the pressure detecting coupler 28 is mounted with pressure detecting means. Therefore, each operation of gas diffusion, mounting of a governor, and pressure detection does not require the operation of removing the lid 21 flange-joined with the plurality of fixing bolts 15 without screwing the diffusion plug 23 with the lid 21. It can be easily done simply by releasing and removing. For this reason, there is no need to replace the flange with a dedicated flange according to each operation as in the related art.
【００１５】放散口２２は放散口プラグ２３の周囲を覆
う放散口キャップ２４とＯリング２５によって封止する
ので、放散口プラグ２３の装着に際してシール剤を塗布
する必要がない。放散口キャップ２３は雌ねじ部２４ｂ
を放散口プラグ２３の第２雄ねじ部２３ｂに螺合させる
ことにより容易に装着することができるので、シール剤
を塗布する手間を伴うことなく、容易にシール作業を行
なうことができる。Since the outlet 22 is sealed by the outlet cap 24 and the O-ring 25 covering the periphery of the outlet plug 23, there is no need to apply a sealant when the outlet plug 23 is mounted. The outlet cap 23 is a female screw part 24b.
Can be easily mounted by screwing into the second male screw portion 23b of the outlet plug 23, so that the sealing operation can be easily performed without the trouble of applying the sealant.
【００１６】[0016]
【発明の効果】以上述べたように、本発明によれば、蓋
体に放散口プラグで閉栓する放散口を形成することによ
り、ガスの放散、ガバナの装着、圧力検出の各操作が放
散口プラグを取り外すだけで容易に行なうことができ、
従来のように、フランジを取り外す作業や、各操作に応
じてフランジを専用フランジに取り替える必要もない。
また、放散口は放散口プラグの周囲を覆う放散口キャッ
プとＯリングによって封止するので、シール剤を塗布す
る手間を伴うことなく、容易にシール作業を行なうこと
ができる。As described above, according to the present invention, by forming a vent in the lid to be closed by the vent plug, each operation of gas emission, mounting of the governor, and pressure detection can be performed. It can be done simply by removing the plug,
Unlike the related art, there is no need to remove the flange or replace the flange with a dedicated flange according to each operation.
In addition, since the outlet is sealed with the outlet cap and the O-ring covering the periphery of the outlet plug, the sealing operation can be easily performed without the trouble of applying the sealant.
【図１】本発明の実施の形態における放散弁のフタフラ
ンジを示す正面図である。FIG. 1 is a front view showing a lid flange of a dissipation valve according to an embodiment of the present invention.
【図２】同フタフランジの拡大断面図である。FIG. 2 is an enlarged sectional view of the lid flange.
【図３】同フタフランジの使用状態を示す正面図であ
る。FIG. 3 is a front view showing a use state of the lid flange.
【図４】従来のボール弁を示す正面図である。FIG. 4 is a front view showing a conventional ball valve.
【図５】同ボール弁の側面図である。FIG. 5 is a side view of the ball valve.
【図６】同ボール弁の平面図である。FIG. 6 is a plan view of the ball valve.
【図７】同ボール弁における放散弁を示す正面図であ
る。FIG. 7 is a front view showing a dissipation valve in the ball valve.
【図８】同放散弁におけるフタフランジの使用状態を示
す正面図である。FIG. 8 is a front view showing a use state of a lid flange in the dissipation valve.
１ 弁箱 ２ 挿口 ３ 弁箱内空間 ４ 弁箱ポート ５ 弁箱シート ６ 弁棒 ７ 弁体 ８ 弁体流路 ９ 弁体シート １０ 放散管 １１ 給脂口 １２ 給脂管 １３ 放散弁 １３ａ フランジ １４ フタフランジ １５ 固定ボルト １６ 専用フタフランジ １７ ネジ孔 １８ ガバナ取付用治具 ２１ 蓋体 ２２ 放散口 ２３ 放散口プラグ ２３ａ 第１雄ねじ部 ２３ｂ 第２雄ねじ部 ２３ｃ 頭部 ２３ｄ プラグ部 ２４ 放散口キャップ ２４ａ 凸部 ２４ｂ 雌ねじ部 ２４ｃ 頭部 ２５ Ｏリング ２６ ガバナ取付用治具 ２７ 圧力検出用孔 ２８ 圧力検出用カプラ ２８ａ Ｏリング ２８ｂ カプラ本体 ２８ｃ カバー REFERENCE SIGNS LIST 1 valve box 2 insertion opening 3 valve box space 4 valve box port 5 valve box sheet 6 valve rod 7 valve element 8 valve element flow path 9 valve element sheet 10 diffusion pipe 11 greasing port 12 greasing pipe 13 diffusion valve 13a flange 14 Lid Flange 15 Fixing Bolt 16 Dedicated Lid Flange 17 Screw Hole 18 Governor Mounting Jig 21 Lid 22 Radiating Port 23 Radiating Port Plug 23a First Male Thread 23b Second Male Thread 23c Head 23d Plug 24 Radiating Cap 24a Convex part 24b Female screw part 24c Head 25 O-ring 26 Governor mounting jig 27 Pressure detection hole 28 Pressure detection coupler 28a O-ring 28b Coupler body 28c Cover
Claims (2)
装着した放散弁に設けるものであって、放散弁に放出口
を閉塞してフランジ接合する蓋体と、ガバナ取付用治具
を装着するねじ孔を兼ね、蓋体に表裏を貫通して形成し
た放散口と、放散口に螺合装着する放散口プラグと、蓋
体に表裏を連通して形成した圧力検出用孔と、圧力検出
用孔に装着した圧力検出用カプラとを備えたことを特徴
とする放散弁のフタフランジ。1. A cover which is provided on a radiation valve mounted on a radiation pipe of a ball valve interposed in a gas pipe, and has a discharge port closed by a radiation valve and flange-joined thereto, and a governor mounting jig. A radiation hole which also serves as a screw hole for mounting, a radiation hole formed by penetrating the front and back to the lid, a radiation plug plug screwed to the radiation hole, and a pressure detection hole formed by communicating the front and back to the lid, A lid flange of a dissipation valve, comprising: a pressure detection coupler mounted in a pressure detection hole.
に螺合装着し、頭端側に第２雄ねじ部を有する放散口プ
ラグと、内周面に形成した雌ねじ部で放散口プラグの第
２雄ねじ部に螺合し、放散口プラグを覆って装着する放
散口キャップと、蓋体と放散口キャップの開口端面との
間を気密にシールするＯリングとを備えたことを特徴と
する請求項１に記載の放散弁のフタフランジ。2. A plug having a first external thread formed on the distal end side and screwed into the discharge port and having a second external thread on the head end side, and a plug having an internal thread formed on the inner peripheral surface. And a O-ring that is screwed onto the second male screw portion and covers the outlet plug and is attached thereto, and an O-ring that hermetically seals between the lid and the opening end face of the outlet cap. The lid flange of the dissipation valve according to claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33885299A JP2001153249A (en) | 1999-11-30 | 1999-11-30 | Cover flange for diffusion valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33885299A JP2001153249A (en) | 1999-11-30 | 1999-11-30 | Cover flange for diffusion valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2001153249A true JP2001153249A (en) | 2001-06-08 |
Family
ID=18322022
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP33885299A Pending JP2001153249A (en) | 1999-11-30 | 1999-11-30 | Cover flange for diffusion valve |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2001153249A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107631050A (en) * | 2017-11-06 | 2018-01-26 | 赵桂凤 | A kind of valve |
| CN107763367A (en) * | 2017-11-16 | 2018-03-06 | 北华大学 | Screw drives centrifugal mechanical adaptive speed device |
| CN109027295A (en) * | 2018-09-10 | 2018-12-18 | 赵桂凤 | A kind of PE ball valve |
| CN114001189A (en) * | 2022-01-04 | 2022-02-01 | 常州市潞城燃气设备股份有限公司 | Mounting structure of gas pressure regulator |
-
1999
- 1999-11-30 JP JP33885299A patent/JP2001153249A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107631050A (en) * | 2017-11-06 | 2018-01-26 | 赵桂凤 | A kind of valve |
| CN107763367A (en) * | 2017-11-16 | 2018-03-06 | 北华大学 | Screw drives centrifugal mechanical adaptive speed device |
| CN107763367B (en) * | 2017-11-16 | 2023-08-01 | 北华大学 | Spiral driving centrifugal mechanical self-adaptive speed regulating device |
| CN109027295A (en) * | 2018-09-10 | 2018-12-18 | 赵桂凤 | A kind of PE ball valve |
| CN109027295B (en) * | 2018-09-10 | 2019-09-06 | 启东市鑫宇冶金设备有限公司 | A kind of PE ball valve |
| CN114001189A (en) * | 2022-01-04 | 2022-02-01 | 常州市潞城燃气设备股份有限公司 | Mounting structure of gas pressure regulator |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP2001153249A (en) | Cover flange for diffusion valve | |
| JPH07103342A (en) | Seal-ring device in fluid flowing pipe and mounting method of seal-ring into valve | |
| JPH10246379A (en) | Branch pipe joint | |
| JP4231835B2 (en) | Gas pipe test hole component and test hole structure | |
| JPH07113491A (en) | Hermetic stopper for air conditioner piping | |
| JP3068010B2 (en) | Valve coupling device in integrated gas control device | |
| EA015410B1 (en) | Sealing cap for radiator elements | |
| JPH11108285A (en) | Method and device for flange surface sealing in flange joint part of pipe | |
| JPS643897Y2 (en) | ||
| JP2524491Y2 (en) | Valve device | |
| JP3154265B2 (en) | Valve shaft sealing device | |
| JPH0814440A (en) | Active pipe branch take out method and interrupting method for fluid | |
| CN107613693A (en) | A kind of Internet of Things monitoring common apparatus standardization casing | |
| JPH10281398A (en) | Gas transfer unit, and safety valve used in this gas transfer unit | |
| JPH11190433A (en) | Structure of air circuit | |
| JP3580108B2 (en) | Fitting device for instrument mounting | |
| CN212540828U (en) | Video monitoring equipment packaging hardware | |
| JP2000255677A (en) | Substrate storing container and method for opening or closing lid for substrate storing container | |
| JP2000130611A (en) | Spool valve assembly | |
| JP2543569Y2 (en) | Drainage unit with closed lid | |
| JPH09166259A (en) | Pipe joint for connecting branch pipe | |
| JP2548743Y2 (en) | Safety structure of piston type pressure reducing device with V packing | |
| JP2007255945A (en) | Stop plug for glove port | |
| JPS5922381Y2 (en) | Flow path on/off valve | |
| KR200290757Y1 (en) | The vaccum valve device of a vaccum tank |