JPS59217100A - Gas container cock - Google Patents

Gas container cock

Info

Publication number
JPS59217100A
JPS59217100A JP9044283A JP9044283A JPS59217100A JP S59217100 A JPS59217100 A JP S59217100A JP 9044283 A JP9044283 A JP 9044283A JP 9044283 A JP9044283 A JP 9044283A JP S59217100 A JPS59217100 A JP S59217100A
Authority
JP
Japan
Prior art keywords
valve
pressure
gas
safety valve
protrusion
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
JP9044283A
Other languages
Japanese (ja)
Inventor
Toshihiko Suminoe
住江 寿彦
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.)
NICHIDOKU KOGYO KK
Original Assignee
NICHIDOKU KOGYO KK
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 NICHIDOKU KOGYO KK filed Critical NICHIDOKU KOGYO KK
Priority to JP9044283A priority Critical patent/JPS59217100A/en
Publication of JPS59217100A publication Critical patent/JPS59217100A/en
Pending legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C13/00Details of vessels or of the filling or discharging of vessels
    • F17C13/12Arrangements or mounting of devices for preventing or minimising the effect of explosion ; Other safety measures
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0302Fittings, valves, filters, or components in connection with the gas storage device
    • F17C2205/0323Valves
    • F17C2205/0332Safety valves or pressure relief valves
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0302Fittings, valves, filters, or components in connection with the gas storage device
    • F17C2205/0382Constructional details of valves, regulators
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2260/00Purposes of gas storage and gas handling
    • F17C2260/04Reducing risks and environmental impact

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Lift Valve (AREA)
  • Safety Valves (AREA)

Abstract

PURPOSE:To keep the rate of flow in operation nearly constant and prevent a large amount of gas from being released at the breakage of a pipe, by providing a pressure- responsive member for a safety valve unit and providing an excessive flow prevention valve, which is actuated when the safety valve unit is put into operation. CONSTITUTION:When the pressure of gas in a container 7 has changed due to a pipe breakage or the like, a pressure-responsive member 25 acts depnding on the gas pressure and a spring 29. If the gas pressure is normal or low, the protrusion 26 of the member 25 projects in contact with the top of an upper suspension support 17 so that an excessive flow prevention valve 26 does not ascend and the working fluid is increased. If the gas pressure is abnormally high, the pressure exceeds the force of the sprong 29 to put a safety valve unit 24 into operation. At that time, the gas is released from discharge ports 22, 28a, the pressure-responsive member 25 is moved leftward, its protrusion goes off the top of the support 17, and the excessive flow prevention valve 14 is lifted into operation to hold down the flow rate of the working fluid. After a gas passage 11 is shut, a handle 1 is turned to push down the protrusion 15 of the valve 14 by a valve 4 to return a valve spindle 16 to its normal position and then return the member 25 to its normal position.

Description

【発明の詳細な説明】 本発明はボンベ容器弁出口より下流の配管部が破断され
た場合における大量ガス放出を防止する過流防止機能を
備えたボンベ容器弁に関する。
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a cylinder container valve having an overflow prevention function that prevents a large amount of gas from being released in the event that a piping section downstream of the cylinder container valve outlet is ruptured.

従来、地震や雪害によって配管が破断した場合の、ガス
放出による災害防止の為、過流防止弁や後述のボンベ容
器弁が設けられていたが、過流防止弁が低圧側に設置さ
れた場合は、当然ながら高圧側配管の破断に対しては効
果がなく、高圧側に設置された場合にはその複雑な形状
のため破損の恐れがあり、又、ボンベ内部ガス圧力の変
化によって作動流量が著しく変化する欠点があった。
Conventionally, overflow prevention valves and cylinder container valves (described later) have been installed to prevent disasters caused by gas release when piping ruptures due to earthquakes or snow damage, but when overflow prevention valves are installed on the low pressure side. Of course, it is not effective against rupture of the high-pressure side piping, and if installed on the high-pressure side, there is a risk of damage due to its complicated shape, and the operating flow rate may change due to changes in the internal gas pressure of the cylinder. There were drawbacks that varied markedly.

前述の従来のボンベ容器弁について1ijF、明すると
、ハンドルaを回転式せて回転体すを下方に螺Ω1させ
ると弁体Cは摺動下降し、弁座dに圧接してガス流通路
eを遮断する。ハンドルミf逆方同に回転すれば同様の
動′作にてガス流通路eを開放する。
Regarding the above-mentioned conventional cylinder container valve, when the handle a is rotated and the rotating body is screwed downward by Ω1, the valve body C slides down and comes into pressure contact with the valve seat d to open the gas flow passage e. cut off. If the handle f is rotated in the opposite direction, the gas flow passage e will be opened in the same manner.

ボンベ容器で内部ガス圧力が所定圧力を越えて只常上昇
し7c場合には、安全弁gに作用するガス圧力がばねh
のばね力に打ちがち安全弁gTh左方に移動させ前記は
ねhのばね力と釣り合う位置に安定する。したがって、
安全弁gの移動により開口部1が開放され、ガスを外部
に放出してボンベ容器f内部ガス圧力を安定化させる。
If the internal gas pressure in the cylinder container constantly rises above the predetermined pressure (7c), the gas pressure acting on the safety valve g will be reduced by the spring h.
The safety valve gTh, which tends to be affected by the spring force of the spring h, is moved to the left and stabilized at a position where it balances the spring force of the spring h. therefore,
The opening 1 is opened by the movement of the safety valve g, and the gas is released to the outside to stabilize the gas pressure inside the cylinder f.

しかしながら上記従来のボンベ容器弁はガス流通路eの
遮断、開放が手動操作にて可能であり、又、前述のよう
にボンベ容器で内部ガス圧力の異常上昇にも対処し得る
が、出口より下流の配管系の破IJi等に応動する機能
を有しない。
However, the conventional cylinder container valve described above can manually shut off and open the gas flow path e, and can also cope with an abnormal increase in internal gas pressure in the cylinder container as described above. It does not have the function to respond to damage to the piping system.

本発明は上記従来の過流防止弁及びボンベ容器弁の欠点
を解消し、配管系が破断した場合の大量ガス放出を防止
して、はぼ一定の放出流量で作動する過流防止機能’f
l: (Ii&えたボンベ容器弁゛の提供を口約とする
The present invention eliminates the drawbacks of the conventional overflow prevention valve and cylinder container valve, prevents the release of a large amount of gas in the event of a rupture in the piping system, and provides an overflow prevention function that operates at a nearly constant discharge flow rate.
1: (I make a promise to provide the cylinder container valve).

本発明の一実施例について説明する。ハンドル1を回転
することによシ、回転体2と固着され、且つ、弁ケーシ
ング5と気密で)H動可能に嵌合さ2れた弁体4の上昇
、下降を行なう。前記回転体2はナツト3に1144合
されている。n;1記弁ケーシング5はボンベ容器7に
螺着されている。弁ケーシング5の流入口部6に、ガス
流入口となる開孔部8a及び係市部9とを具<rr’、
rjする下部キャップ8を螺着し、011把流入口部6
から流出口10迄の途中にガス流通路11を形成する。
An embodiment of the present invention will be described. By rotating the handle 1, the valve body 4, which is fixed to the rotating body 2 and movably fitted to the valve casing 5 in an airtight manner, is raised and lowered. The rotary body 2 is fitted to the nut 3 at 1144 degrees. n;1 The valve casing 5 is screwed onto the cylinder container 7. The inlet part 6 of the valve casing 5 is provided with an opening part 8a that becomes a gas inlet and a connecting part 9.
Screw on the lower cap 8 to be connected to the
A gas flow passage 11 is formed midway from the to the outlet 10.

イ曵ガス流7瑣i、611を遮断、開放する[([1記
弁体4及び弁座12と異なる位ffft、 K過流弁t
−ii 13を配設し、該過流弁座13に1斤接すべく
過流弁体14を配設する。該過流弁体14の上部及び下
部には、弁体突出部15及び弁体1Gが一体に形成され
ている。nf[記弁体工6に上部懸架支持部材17?!
−緩挿し、下部懸架支持部材18及び・係止板19を固
オ゛1させ、弁体16の下部をri’+J記下部キャン
プ8の係止部9上に載置した円板20の中央孔に緩挿し
、係止板19fjγ1記円板20上に係止させる。
A) Cut off and open the gas flow 7i, 611 [([1 differs from the valve body 4 and the valve seat 12ffft, K overflow valve t
-ii 13 is disposed, and an overflow valve body 14 is disposed so as to be in contact with the overflow valve seat 13. A valve body protrusion 15 and a valve body 1G are integrally formed at the upper and lower parts of the overflow valve body 14. nf [Upper suspension support member 17 on the valve body 6? !
- Loosely insert the lower suspension support member 18 and the locking plate 19 into the center of the disk 20 with the lower part of the valve body 16 placed on the locking part 9 of the lower camp 8 marked ri'+J. It is loosely inserted into the hole, and the locking plate 19fjγ1 is locked onto the disc 20.

前記上部懸架支持部材17と下部懸架支持部材18との
間には適当長のばね21’i!a!架する。
A spring 21'i of an appropriate length is provided between the upper suspension support member 17 and the lower suspension support member 18! a! Build.

ガス流通路11内の適当位置に放出口22を配設し、該
放出口22に軸心を一致させて筒状部23全弁ケーシン
グ5と一体に形成する。前記放出口22には、安全弁2
4に気密、且つ、摺動可能に嵌合された圧力応動部材2
5と一体に形成された突出部A26が押;+’fi L
、、診突出部A26の先端部分は、ボンベ容器7内ガス
圧が通常時及び低圧時においては、上部懸架支持部材1
7の上部に近接して位置する。突t13部A26の対称
位置には突出部B27がI:E力応切部材25と一体に
形成されている。安全弁24は前記筒状部23に螺着さ
れた安全弁ケース28との間に懸架されたばねA29に
より、圧力応動H++材25は前記突出部E27に嵌装
されたばねB2Oによってそれぞれ常時付%されており
、ガス流通路11の低密が保持されている。1?1f記
安全弁ケース28にはガス排出口28aが設けられてい
る。配管部の破断及び環境TAA度上昇等があった場合
に想定されるボンベ容器7内のガス圧変化1屯囲におい
て、低圧時には突出部A2Gが上部懸架支持部材17の
上部に突出して弁・咋16の上昇を抑制し、高圧時には
突出部A26は上部懸架支持部材17の上部位置から外
れ、弁棒16の上昇は目出に行なわれ、又、突出部B2
7の端面は安全弁ケース28の平坦面31に当接する。
A discharge port 22 is disposed at an appropriate position within the gas flow passage 11, and a cylindrical portion 23 is integrally formed with the entire valve casing 5 so that its axis coincides with the discharge port 22. A safety valve 2 is provided at the discharge port 22.
Pressure responsive member 2 is hermetically and slidably fitted to 4.
The protruding part A26 formed integrally with 5 is pressed; +'fi L
When the gas pressure inside the cylinder container 7 is normal or low, the tip of the diagnostic protrusion A26 is connected to the upper suspension support member 1.
Located close to the top of 7. A protrusion B27 is formed integrally with the I:E force response member 25 at a symmetrical position of the protrusion t13 A26. The safety valve 24 is constantly energized by a spring A29 suspended between the safety valve case 28 screwed onto the cylindrical portion 23, and the pressure-responsive H++ material 25 is constantly energized by a spring B2O fitted into the protrusion E27. , the low density of the gas flow passages 11 is maintained. 1-1F The safety valve case 28 is provided with a gas discharge port 28a. When the gas pressure in the cylinder container 7 changes for one cycle, which is assumed to occur in the event of a rupture in the piping or an increase in the environmental TAA temperature, the protruding part A2G protrudes to the upper part of the upper suspension support member 17 when the pressure is low. 16, and when the pressure is high, the protruding part A26 is removed from the upper position of the upper suspension support member 17, the valve stem 16 is raised clearly, and the protruding part B2
The end surface of 7 abuts against the flat surface 31 of the safety valve case 28.

本発明は上記(16成であり、配管部の破断等が原因と
なるボンベ容器7内ガス圧力変化に応じて、圧力応動部
材25がばねA29のばね力とガス圧力とのつ、りあい
の不均衡にもとづき位1:〒を変化し、ガス圧力が平常
時及び(1(圧時には[E力応動部材の突出部A26が
上部¥4f、架支持部4′A’ 17の上部に突出し、
位1i?iするため、過流弁体14が上昇、作動しても
上部懸架支持部材17が突出+5t(A26によって係
止され、ばね21のばね力の作用により過流弁体14の
上昇は妨げられ、作動流量を増加させる。反対にガス圧
力が高い場合には、ガス圧力がばねA29のばね力に打
ちかつて安全弁24を左へ移動させ放出口22及び排出
口28&よりガスが排出されるとともに、IE力力持動
部材25ガス圧力の作用で左へ移動し、突出部A26が
下部懸架支持部材17の上部位置から外れるに至る。
The present invention has the above-mentioned structure (16), in which the pressure-responsive member 25 adjusts the balance between the spring force of the spring A29 and the gas pressure in response to changes in the gas pressure in the cylinder container 7 caused by breakage of the piping section, etc. Based on the equilibrium, the position 1:〒 is changed, and when the gas pressure is normal and (1), the protruding part A26 of the force responsive member protrudes from the upper part 4f, the upper part of the frame support part 4'A'17,
Rank 1i? Therefore, even if the overflow valve body 14 rises and operates, the upper suspension support member 17 protrudes +5t (locked by A26, and the rise of the overflow valve body 14 is prevented by the action of the spring force of the spring 21. Increase the operating flow rate.On the other hand, when the gas pressure is high, the gas pressure overcomes the spring force of the spring A29 and moves the safety valve 24 to the left, causing gas to be discharged from the discharge port 22 and the discharge port 28&, and the IE The force holding member 25 moves to the left under the action of the gas pressure, and the protruding portion A26 comes to be removed from the upper position of the lower suspension support member 17.

したがって、ばね21に押下刃が作用しないので過流弁
体14が上昇、作動する。このようにガス圧力の低いβ
y IjlTではけね21のばね力の作用で作動流量が
増加し、又、ガス)E力の高い・i・百囲で(は作動流
量の増加を押智えて安定な作動を行なうことができる。
Therefore, since the pressing blade does not act on the spring 21, the overflow valve element 14 rises and operates. In this way, β with low gas pressure
In y IjlT, the operating flow rate increases due to the action of the spring force of the cage 21, and in gas) E force is high, i, and 100 yen (gas) can perform stable operation by suppressing the increase in the operating flow rate. .

ガス流1jilN511が遮fliされた場合の作BW
後のリセツNCついては、ハンドルl?:回転すれば弁
体4が弁体突出一部15勿111し下げるので、先ず弁
体IGが、R’に:”でIE力力持動部材25平常位置
に戻ることになる。
Operation BW when gas flow 1jilN511 is blocked
Regarding the later reset NC, handle l? : When rotated, the valve body 4 lowers the valve body protruding portion 15 and 111, so that the valve body IG first returns to the normal position of the IE force holding member 25 at R'.

以上、本発明によれ(・ずガス圧力が変動しても作動流
量が1ti5一定1・jfを保った安定な過流防止機能
を有するボンベ容器弁が得られるとともに、ガス圧異常
上昇時には配管系へのガス供給が停止されるので災害防
止にも多大の効果を奏する。
As described above, according to the present invention, it is possible to obtain a cylinder valve having a stable overflow prevention function that maintains the operating flow rate at a constant 1.jf even when the gas pressure fluctuates, and also to prevent the piping system from increasing when the gas pressure abnormally increases. Since the gas supply to the area will be stopped, this will have a great effect on disaster prevention.

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

第1図は従来のバルブ容器弁の(jイ面図であり、第2
図は本発明の一部j包例における断面図である。 1・・・ハンドル、4・・・ブト体、5・・・弁ケーシ
ング、7・・・ボンベ容器、8・・・下1″Hlキャッ
プ、9・・・係止部、11・・・ガス流通路、12・・
・弁座、1吐・・過流弁座、14パ°過流弁体、15・
・・弁体突出部、16・・・弁体、17・・・上部i′
幡装架支持部材18・・・下部懸架支持部材、19・・
・係止板、20・・・円板、21・・・ばね、22・・
・放出口、24・・・安全弁、25・・・圧力応動部材
、26・・・突出部A、27・・・突出部B128・・
・安全弁ケース、29・・・はねA130・・・ばねB
山間(人 日独工業株式会社 ′・孔・1゜ 代理人  五 歩 −敬 治し、ゾ・、;1ljl ’!2’・、1 り、’4 a tニー知2rグ1
Figure 1 is a side view of a conventional valve container valve.
The figure is a sectional view of a partial example of the present invention. DESCRIPTION OF SYMBOLS 1... Handle, 4... Button body, 5... Valve casing, 7... Cylinder container, 8... Lower 1" Hl cap, 9... Locking part, 11... Gas Distribution path, 12...
・Valve seat, 1 discharge・・Overflow valve seat, 14° Overflow valve body, 15・
... Valve body protrusion, 16... Valve body, 17... Upper i'
Hanging rack support member 18...lower suspension support member, 19...
・Latching plate, 20...disk, 21...spring, 22...
・Discharge port, 24...Safety valve, 25...Pressure responsive member, 26...Protrusion part A, 27...Protrusion part B128...
・Safety valve case, 29...Spring A130...Spring B
Yamama (person) Nichi-German Kogyo Co., Ltd.'・Ko・1゜Representative Goho - Kei Chishi, Zo・,;1ljl '!2'・,1 Ri,'4 atneechi2rg1

Claims (2)

【特許請求の範囲】[Claims] (1)ガス流路を形成する弁ケーシング、前記ガス流路
を開閉する弁、該弁を1・位動させるハンドルおよびボ
ンベ内のガス圧上昇により摺動可能にi1゛:’j成式
れた安全弁とを有するボンベ容器弁GCおいて、弁ケー
シングの前記弁位置と躾なる位置に弁座?配設し、該弁
座に近]゛ψした弁体全有し、該弁体と一体に形h′シ
された弁体を弁ケーシングに固着された下部キャップの
係止↑15に載置した板上に係止させ、前記弁体に固λ
°fされた下部懸架支持部材と、該弁棒に(浸種された
上部懸架支持部材との間に弾性体を懸架すると共に、前
記安全弁にIE力応動部材″f:摺動可能、且つ、気密
に11兼合し、安全弁と安全弁ケースとの間には弾性体
を懸架させ前記圧力応動部材が前記上部懸架支持部材の
上部位置に突出するように配設されたことを特徴とする
ボンベ容器弁
(1) A valve casing that forms a gas flow path, a valve that opens and closes the gas flow path, a handle that moves the valve by 1 position, and a structure that can be slid by increasing the gas pressure in the cylinder. In a cylinder container valve GC having a safety valve, a valve seat is located at a position corresponding to the valve position of the valve casing. The valve body, which is arranged and has a whole valve body which is ゛ψ near the valve seat, is integrally formed with the valve body and is placed on the lock ↑15 of the lower cap fixed to the valve casing. The valve body is fixed to the valve body.
An elastic body is suspended between the lower suspension support member subjected to °f and the upper suspension support member soaked on the valve stem, and an IE force-responsive member "f: slidable and airtight is attached to the safety valve. 11, wherein an elastic body is suspended between the safety valve and the safety valve case, and the pressure-responsive member is disposed so as to protrude to an upper position of the upper suspension support member.
(2)圧力応動?HI材と一体に形成された一対の突出
部の一方の突出部に弾性体が嵌装されている特許請求の
範囲第1項記載のボンベ容器弁
(2) Pressure response? The cylinder container valve according to claim 1, wherein an elastic body is fitted to one of the pair of protrusions formed integrally with the HI material.
JP9044283A 1983-05-23 1983-05-23 Gas container cock Pending JPS59217100A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9044283A JPS59217100A (en) 1983-05-23 1983-05-23 Gas container cock

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9044283A JPS59217100A (en) 1983-05-23 1983-05-23 Gas container cock

Publications (1)

Publication Number Publication Date
JPS59217100A true JPS59217100A (en) 1984-12-07

Family

ID=13998729

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9044283A Pending JPS59217100A (en) 1983-05-23 1983-05-23 Gas container cock

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JP (1) JPS59217100A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61103677U (en) * 1984-12-13 1986-07-01
US5215217A (en) * 1988-10-07 1993-06-01 Dispak Pty. Ltd. Pressure supply unit
KR20050077114A (en) * 2004-01-26 2005-08-01 오영하 Liquefied petroleum gas over flow intercept device
JP2009180375A (en) * 2009-04-13 2009-08-13 Japan Steel Works Ltd:The Relief valve
US9016301B2 (en) 2011-03-30 2015-04-28 Airbus Operations Limited Conduit protection system and method

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61103677U (en) * 1984-12-13 1986-07-01
JPH03605Y2 (en) * 1984-12-13 1991-01-10
US5215217A (en) * 1988-10-07 1993-06-01 Dispak Pty. Ltd. Pressure supply unit
KR20050077114A (en) * 2004-01-26 2005-08-01 오영하 Liquefied petroleum gas over flow intercept device
JP2009180375A (en) * 2009-04-13 2009-08-13 Japan Steel Works Ltd:The Relief valve
US9016301B2 (en) 2011-03-30 2015-04-28 Airbus Operations Limited Conduit protection system and method

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