JPH06109153A - Valve with relief valve and piping method using valve with relief valve - Google Patents
Valve with relief valve and piping method using valve with relief valveInfo
- Publication number
- JPH06109153A JPH06109153A JP27812392A JP27812392A JPH06109153A JP H06109153 A JPH06109153 A JP H06109153A JP 27812392 A JP27812392 A JP 27812392A JP 27812392 A JP27812392 A JP 27812392A JP H06109153 A JPH06109153 A JP H06109153A
- Authority
- JP
- Japan
- Prior art keywords
- valve
- relief
- relief valve
- piping system
- piping
- 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
Landscapes
- Pipe Accessories (AREA)
- Lift Valve (AREA)
- Safety Valves (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は通常の流体配管系中にお
いて、前後の弁が閉塞されたときに生ずる不都合を防止
するための流体配管系中に設けられた弁の改良に関する
ものである。特にボイラや温水器の燃焼停止中の液体燃
料などの非圧縮性流体の配管においてバ−ナ元弁と油サ
−ビスタンク出口弁が閉塞された場合などにおいては、
気温などの上昇その他の状態の変化により弁間の配管中
の圧力が上がり、該配管部のねじ込み部やポンプのメカ
ニカルシ−ルなどより濡れを生じたり、該配管部の圧力
計などが破損する事故が生じたり、或は蒸気の配管など
においては閉止中の冷却によつて弁間配管中の圧力が下
がり、空気などを吸い込む不都合が生ずる。本発明は上
記の種々な不都合を防止するための逃がし弁付き弁及び
それを使用した配管方法に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of a valve provided in a fluid piping system for preventing problems caused when the front and rear valves are closed in a conventional fluid piping system. In particular, when the burner source valve and the oil service tank outlet valve are blocked in piping for incompressible fluid such as liquid fuel when combustion is stopped in the boiler or water heater,
The pressure in the pipe between the valves rises due to temperature rise and other changes in the condition, causing wetting by the threaded portion of the pipe and the mechanical seal of the pump, and the pressure gauge of the pipe being damaged. Accidents may occur, or in piping for steam, the pressure in the inter-valve piping may drop due to cooling while the piping is closed, and the inconvenience of sucking in air may occur. The present invention relates to a valve with a relief valve for preventing the above various inconveniences and a piping method using the valve.
【０００２】[0002]
【従来の技術】従来通常のボイラや温水器などの流体燃
料配管系中には必ずバ−ナ元弁とサ−ビスタンク出口弁
とが取付けられており、使用時にはそれらを含むすべて
の弁が開の状態で運転されている。そして運転を停止し
た時、特にその運転停止が長時間にわたると予想される
ときは上記のバ−ナ元弁やサ−ビスタンク出口弁を閉止
するのが通常の正規の運転基準とされている。2. Description of the Related Art Conventionally, a burner source valve and a service tank outlet valve are always installed in a fluid fuel piping system such as an ordinary boiler or a water heater, and all valves including them are opened during use. It is operated in the state of. When the operation is stopped, especially when it is expected that the operation will be stopped for a long time, it is a normal normal operation standard to close the burner source valve and the service tank outlet valve.
【０００３】しかしながら運転停止が短時間の時にはい
ちいち上記バ−ナの元弁やサ−ビスタンク出口弁を開閉
するのが面倒であるため、通常は行われないのである
が、その場合、例えばバ−ナの遮断弁に漏れがあるとそ
こから漏れた液体燃料が炉内にたまり次の点火時に漏れ
た液体燃料が爆発の原因になつたり、或は燃料配管系の
ねじ込み部やポンプのメカニカルシ−ルなどからの僅か
な漏れがあるとそれが積もり積もつて漏れが溜って、最
悪の場合には火事の原因になる危険性があつた。従つて
燃焼が停止されてしばらくはその状態が続くと予想され
る場合には必ず前記配管系のバ−ナ元弁などは閉止せね
ばならぬとされていた。However, since it is troublesome to open and close the main valve of the burner and the service tank outlet valve one by one when the operation is stopped for a short time, it is not normally performed. If there is a leak in the shutoff valve of the engine, the liquid fuel that leaks from it will accumulate in the furnace and the liquid fuel that leaks during the next ignition will cause an explosion, or the screwed part of the fuel piping system or the mechanical seal of the pump. If there is a slight leak from Le etc., it accumulates and leaks accumulate, and in the worst case there is a risk of causing a fire. Therefore, it is said that the burner main valve and the like of the piping system must be closed whenever combustion is expected to continue for a while after the combustion is stopped.
【０００４】[0004]
【発明が解決しようとする課題】ボイラの温水器の燃焼
停止中は前記したようにバ−ナ元弁やサ−ビスタンク元
弁を閉止するのが正規の運転基準とされているが、その
通りに閉止しておくと前記したように気温やボイラ室内
の温度の上昇などにより、液体燃料配管系中の燃料が非
圧縮性流体のために、その体積が膨張して内部の圧力が
急激に上昇し、燃料配管系のねじ込み部やポンプのメカ
ニカルシ−ル部から燃料が漏れたり或は該燃料配管系の
圧力計が破損したりする問題点があつた。While the combustion of the water heater of the boiler is stopped, it is the normal operating standard to close the burner main valve and the service tank main valve as described above. When closed, the temperature in the boiler chamber rises and the temperature in the boiler chamber rises, as described above, because the fuel in the liquid fuel piping system is an incompressible fluid, its volume expands and the internal pressure rises sharply. However, there is a problem that fuel leaks from the screwed portion of the fuel piping system or the mechanical seal portion of the pump, or the pressure gauge of the fuel piping system is damaged.
【０００５】従来は上記のような事故を防止するために
バ−ナの遮断弁と元弁との間及びバ−ナ元弁とサ−ビス
タンク出口弁との間にそれぞれ逃がし弁経由で連結し、
或はそれらからそれぞれに逃がし弁経由でサ−ビスタン
クに戻す方法、例えば〔図１〕の二点鎖線を設けるのが
普通であるが、通常はサ−ビスタンクが離れて設置され
ているため戻り配管を施工するのが大変であるとの理由
により、該配管をしないまま放置されるなどの不都合が
ままあつた。その場合には上記のような内圧の急上昇に
より不都合を生ずることになつていた。Conventionally, in order to prevent the above-mentioned accidents, a burner shutoff valve and a main valve and a burner main valve and a service tank outlet valve are connected via relief valves, respectively. ,
Or, it is usual to provide a method of returning them to the service tank through relief valves, for example, to provide a two-dot chain line in [Fig. 1]. However, since the service tank is usually installed separately, the return pipe Due to the fact that it is difficult to construct the pipe, the inconvenience such as being left without the pipe was left. In that case, the above-mentioned sudden increase of the internal pressure causes a problem.
【０００６】本発明は従来の技術における前記のような
問題点に鑑み、従来の逃がし弁と配管とを別々に設置す
ることをせずに、これらに代わつて、バ−ナ元弁やサ−
ビスタンク出口弁の弁体自身に小さい逃がし弁を取付け
るもので、通常の使用状態のままで安価な費用で燃焼停
止中の液体燃料などの配管系を安全に保つこと、即ち従
来のような逃がし弁と逃がし管を設けるのではなく、戻
り管のない往管のみの一本の配管のままでそのバ−ナ元
弁やサ−ビスタンク出口弁を本発明の逃がし弁付き弁に
替える装置とそれを使用した配管方法を目的とするもの
である。In view of the above-mentioned problems in the prior art, the present invention does not have to separately install the conventional relief valve and piping, but instead, installs a burner main valve or a servo valve.
A small relief valve is attached to the valve body of the bis tank outlet valve, so that the piping system for liquid fuel etc. in a combustion stopped state can be kept safe under normal use conditions at a low cost. And a device for replacing the burner main valve and the service tank outlet valve with the relief valve-equipped valve of the present invention with a single pipe without a return pipe, instead of providing a relief pipe. It is intended for the piping method used.
【０００７】[0007]
【課題を解決するための手段】本発明の第１は通常の流
体配管系中に設けられた元弁又は仕切弁において、該元
弁の弁体又は該仕切弁の弁体に逃がし弁が取付けられた
ことを特徴とする逃がし弁付き弁であり、その第２は通
常の流体配管系中に設けられた止め弁又はバタフライ型
止め弁又はバタフライ型逆止め弁又はボ−ル弁の各弁体
に逃がし弁が取付けられたことを特徴とする逃がし弁付
き弁であり、その第３は流体配管系中に設けられた弁に
おいて該弁の弁体に設けられる逃がし弁が逆止め型とさ
れたことを特徴とする上記１又は２に記載の逃がし弁付
き弁であり、更にその第４は流体配管系中に設けられた
弁体に逆止め型の逃がし弁を取付けるか又は流体配管系
中に設けられた弁体に該逃がし弁を取付けた弁を単数又
は複数個取付けたことを特徴とする逃がし弁付き弁を使
用した配管方法に関するものである。According to a first aspect of the present invention, in a main valve or a sluice valve provided in an ordinary fluid piping system, a relief valve is attached to the valve body of the main valve or the valve body of the sluice valve. A valve with a relief valve, the second of which is a stop valve or a butterfly-type stop valve, a butterfly-type check valve, or a ball valve provided in an ordinary fluid piping system. Is a valve with a relief valve, characterized in that the relief valve provided in the valve body of the valve is a non-return type valve. The relief valve with a relief valve according to the above 1 or 2, characterized in that the fourth one is that a check valve relief valve is attached to a valve element provided in the fluid piping system or the valve is provided in the fluid piping system. One or more valves with the relief valve attached to the provided valve body Relates Piping using relief valve with valve characterized and.
【０００８】[0008]
【作用】ボイラや温水器の燃焼停止中に液体燃料配管系
内の燃料が膨張して圧力が上昇しても本発明の逃がし弁
付き弁をバ−ナ元弁及びサ−ビスタンク出口元弁などに
使用することによつて燃料の膨張量を通常は上流側或は
用途によつては下流側へ逃がすことができ、ねじ部から
の漏れや圧力計の破損などの問題が解消される。この場
合本発明による弁の逃がし弁部の設定圧力は燃料配管系
の常用圧力より0.5Kg/cm2 程度高い圧力にすると好適で
ある。同様にして例えば蒸気配管系においては蒸気が冷
却凝縮されて減圧になると外部の空気を吸い込むという
ことがよく生起し、種々な不都合を生ずる。この場合も
上流側に配管部の圧力が大気圧よりも0.5Kg/cm2 程度高
い圧力まで下つたら開くように設定した本発明の逃がし
弁付き弁を使用することにより上記のような不都合が回
避される。When the fuel in the liquid fuel piping system expands and the pressure rises while the combustion of the boiler or water heater is stopped, the relief valve-equipped valve of the present invention is used as a burner main valve and a service tank outlet main valve. When used for the purpose, the expansion amount of the fuel can be normally released to the upstream side or the downstream side depending on the application, and problems such as leakage from the screw portion and damage to the pressure gauge can be solved. In this case, the set pressure of the relief valve portion of the valve according to the present invention is preferably set to a pressure higher by about 0.5 kg / cm 2 than the normal pressure of the fuel piping system. Similarly, for example, in the steam piping system, when the steam is cooled and condensed to reduce the pressure, it often happens that the outside air is sucked in, which causes various problems. In this case as well, the above-mentioned inconvenience is caused by using the valve with a relief valve of the present invention which is set to open when the pressure of the piping portion is lowered to a pressure higher than the atmospheric pressure by about 0.5 Kg / cm 2 in the upstream side. Avoided.
【０００９】[0009]
【実施例】次に本発明を実施例によつて説明する。〔図
１〕は本発明の逃がし弁付き弁を使用した場合のボイラ
の燃料配管系統と従来の燃料配管系統（二点鎖線で示
す）を併記した一実施例を示す。〔図１〕において(11)
はボイラ又は温水器、(12)はバ−ナ、(13)はバ−ナ元
弁、(14)は油ポンプ、(15)は燃料配管、(16)は油サ−ビ
スタンク出口元弁（又は燃料元弁）、(17)は油サ−ビス
タンクである。EXAMPLES The present invention will now be described with reference to examples. FIG. 1 shows an embodiment in which a fuel piping system of a boiler and a conventional fuel piping system (shown by a chain double-dashed line) when the valve with a relief valve of the present invention is used are shown together. In [Fig. 1] (11)
Is a boiler or water heater, (12) is a burner, (13) is a burner valve, (14) is an oil pump, (15) is fuel piping, and (16) is an oil service tank outlet valve ( (Or fuel source valve), (17) is an oil service tank.
【００１０】本発明の弁を使用しない場合の〔図１〕の
配管系で、かつ二点鎖線の配管系の敷設されていない場
合は前記のような種々な問題点があつたので〔図１〕の
二点鎖線で示す戻り配管(18a) と(18b) 及び逃がし弁(1
9a) と(19b) を備えることが必要であつた。本発明の弁
を(13)や(16)に使用すれば従来の(18a),(18b) の配管も
(19a),(19b) も必要としない配管系として問題はない。
即ち本発明の場合〔図１〕で戻り配管系（二点鎖線部）
が削除できる。Since the piping system shown in FIG. 1 when the valve of the present invention is not used, and the piping system of two-dot chain line is not laid, the above-mentioned various problems occur. ] The return pipes (18a) and (18b) and the relief valve (1
It was necessary to have 9a) and (19b). If the valve of the present invention is used for (13) and (16), the conventional piping of (18a) and (18b) can be used.
There is no problem as a piping system that does not require (19a) and (19b).
That is, in the case of the present invention [Fig. 1], the return piping system (two-dot chain line portion)
Can be deleted.
【００１１】〔図２〕は本発明の逃がし弁付き仕切弁の
一実施例、〔図３〕は本発明の逃がし弁付き止め弁の一
実施例を示す。〔図２〕及び〔図３〕において、 (1) は通常の止め弁の本体と同じ弁本体。 (2) は入り口フランジ又はねじ部。 (3) は出口フランジ又はねじ部。 (4) は本発明による逃がし弁(5) を取付けた弁体。 (6) は弁座。 (7) は弁体(4) を上下させる軸。 (8) はその操作ハンドルを示す。 〔図２〕の仕切弁や〔図３〕の止め弁を〔図１〕の弁(1
3)や(16)に使用すれば本発明の目的が達成される。FIG. 2 shows an embodiment of a sluice valve with a relief valve according to the present invention, and FIG. 3 shows an embodiment of a stop valve with a relief valve according to the present invention. In [Fig. 2] and [Fig. 3], (1) is the same valve body as the body of a normal stop valve. (2) is the entrance flange or thread. (3) is the outlet flange or thread. (4) is a valve body equipped with the relief valve (5) according to the present invention. (6) is a valve seat. (7) is a shaft for moving the valve body (4) up and down. (8) shows the operation handle. The sluice valve of [Fig. 2] and the stop valve of [Fig.
Use in 3) and (16) achieves the object of the present invention.
【００１２】〔図４〕(a),(b) はそれぞれは本発明の要
部を構成する弁体(4) に取付ける逃がし弁(5) の内部構
造のそれぞれ一実施例を示す。〔図４〕において(21)は
逃がし弁の弁本体、(22)は弁体としての逆止め用ボ−
ル、(23)はスプリング、(24)は座金を示す。本逃がし弁
の取付け方向はこれを取付ける弁体の使用状態における
流れ方向に対して(25)を上流側に、(26)を下流側に向け
て取付けるのが通常は使い易い。その加工上の取付け易
さによつて取付けねじを上流側におくものと下流側にお
くものとの違いで〔図４〕(a),(b) の実施例を示した。
なおその取付け方向はその目的に合致するようにするべ
きでここに特に制限するものではなく、かくて通常の流
れ方向の下流側で圧力が上つてもこの逃がし弁によつて
内部の流体の一部を上流側へ逃がす（図３の矢印の反対
の方向）ことによつて前記した圧力の異常上昇による不
都合を防止することが可能である。〔図４〕(a),(b) で
はボ−ル型の逃がし弁を示したが他の形式の逃がし弁を
使用しても勿論差し支えない。FIGS. 4 (a) and 4 (b) respectively show an embodiment of the internal structure of the relief valve (5) attached to the valve body (4) constituting the essential part of the present invention. In Fig. 4, (21) is the valve body of the relief valve, and (22) is the check valve as the valve body.
(23) is a spring, and (24) is a washer. As for the mounting direction of this relief valve, it is usually easy to mount with (25) facing the upstream side and (26) facing the downstream side with respect to the flow direction of the valve body in which it is used. Due to the easiness of mounting in processing, the embodiment shown in FIGS. 4 (a) and (b) is shown by the difference between the ones for mounting screws on the upstream side and those for mounting screws on the downstream side.
It should be noted that the mounting direction should be adapted to the purpose and is not particularly limited here. Thus, even if the pressure rises on the downstream side in the normal flow direction, this relief valve prevents It is possible to prevent the above-mentioned inconvenience due to the abnormal increase in pressure by allowing the portion to escape to the upstream side (direction opposite to the arrow in FIG. 3). [Fig. 4] (a) and (b) show a ball type relief valve, but of course other types of relief valves may be used.
【００１３】〔図５〕は本発明の逃がし弁付き逆止め弁
の一実施例を示す。(9) は弁本体の蓋を示す。矢印は流
れ方向を示す。FIG. 5 shows an embodiment of a check valve with a relief valve according to the present invention. (9) shows the lid of the valve body. The arrow indicates the flow direction.
【００１４】〔図６〕は本発明の逃がし弁付きバタフラ
イ型止め弁の一実施例を示す。FIG. 6 shows an embodiment of a butterfly type stop valve with a relief valve according to the present invention.
【００１５】〔図７〕は本発明の逃がし弁付きボ−ル弁
の一実施例を示す。(5a),(5b) は本発明による逃がし弁
でこの場合２個の反対取付けの逃がし弁が必要である。
入り口側(5b)に〔図４〕の(b) を取付け、出口側(5a)に
〔図４〕の(a) を取付けるのがよい。本発明の装置とそ
れを使用した配管方法は他の形式の弁や配置においても
同様の実施が可能である。FIG. 7 shows an embodiment of the ball valve with a relief valve according to the present invention. (5a) and (5b) are relief valves according to the present invention, in which case two oppositely mounted relief valves are required.
It is recommended to attach (b) of [Fig. 4] to the inlet side (5b) and (a) of [Fig. 4] to the outlet side (5a). The device of the present invention and the piping method using the same can be similarly implemented in other types of valves and arrangements.
【００１６】[0016]
【発明の効果】本発明によれば逃がし弁や逃がし配管を
別に設けなくてもそれら無しの単純な直列の配管のみで
よくなり、そして前後の弁の安全閉止のままで内圧の上
昇もしくは低下により生ずる不都合を防止することがで
き、しかもその配管方法は本発明の逃がし弁付き弁を使
用することによつて従来よりも著しく簡単である。この
ことは本実施例に示したボイラ周りにとどまらず、種々
なボイラや他のプラントにおいても本発明の逃がし弁付
き弁が適用可能で、その適用範囲は著しく大であり、従
つてその作用効果は計り知れない程甚大である。EFFECTS OF THE INVENTION According to the present invention, it is possible to use only a simple series of pipes without the relief valve and the relief pipe separately provided, and increase or decrease the internal pressure while keeping the front and rear valves safely closed. The inconvenience that occurs can be prevented, and the piping method is considerably simpler than before by using the relief valve-equipped valve of the present invention. This is not limited to around the boiler shown in the present embodiment, the valve with the relief valve of the present invention can be applied to various boilers and other plants, and its application range is remarkably large, and therefore its action and effect. Is immeasurable.
【図１】本発明に関する逃がし弁付き弁を適用したボイ
ラの燃料配管系統と従来の（二点鎖線で示す）燃料配管
系統との一実施例を示す。FIG. 1 shows an embodiment of a fuel piping system of a boiler to which a relief valve-equipped valve according to the present invention is applied and a conventional fuel piping system (shown by a chain double-dashed line).
【図２】本発明に関する仕切弁における一実施例の説明
図を示す。FIG. 2 shows an explanatory view of an embodiment of a sluice valve according to the present invention.
【図３】本発明に関する止め弁の一実施例の説明図を示
す。FIG. 3 shows an explanatory view of an embodiment of a stop valve according to the present invention.
【図４ａ，ｂ】本発明の要部に使用される逃がし弁の一
実施例で同ａと同ｂとは取付けねじが反対方向のそれぞ
れ一実施例を示す。FIGS. 4a and 4b show an embodiment of a relief valve used in the essential part of the present invention, in which mounting screws are opposite to those of a and b, respectively.
【図５】本発明に関する逆止め弁の一実施例の説明図で
ある。FIG. 5 is an explanatory diagram of an embodiment of the check valve according to the present invention.
【図６ａ，ｂ】本発明に関するバタフライ型止め弁の一
実施例の説明図を示す。(a) は側面図、(b) は正面図で
ある。6a and 6b are explanatory views of an embodiment of a butterfly type stop valve according to the present invention. (a) is a side view and (b) is a front view.
【図７】本発明に関するボ−ル弁の一実施例の説明図で
ある。FIG. 7 is an explanatory view of an embodiment of the ball valve according to the present invention.
１．弁本体 ２．入り口フランジ又は入り口ねじ部 ３．出口フランジ又は出口ねじ部。 ４．弁体 ５．本発明の逃がし弁 ６．弁座 ７．弁軸 ８．ハンドル ９．蓋 １１．ボイラ又は温水機 １２．バ−ナ １３．バ−ナ元弁 １４．油ポンプ １５．燃料配管 １６．油サ−ビスタンク元弁 １７．油サ−ビスタンク １８ａ，１８ｂ．戻り配管 １９ａ，１９ｂ 逃がし弁 ２１．逃がし弁の弁本体 ２２．弁体 ２３．スプリング ２４．座金 ２５．通常の流れの上流側 ２６．通常の流れの下流側 1. Valve body 2. Entrance flange or entrance thread 3. Outlet flange or outlet thread. 4. Valve body 5. Release valve of the present invention 6. Valve seat 7. Valve shaft 8. Handle 9. Lid 11. Boiler or water heater 12. Burner 13. Burner valve 14. Oil pump 15. Fuel piping 16. Oil service tank main valve 17. Oil service tank 18a, 18b. Return piping 19a, 19b Relief valve 21. Release valve body 22. Valve body 23. Spring 24. Washer 25. Upstream of normal flow 26. Downstream of normal flow
Claims (4)
は仕切弁において、該元弁の弁体又は該仕切弁の弁体に
逃がし弁が取付けられたことを特徴とする逃がし弁付き
弁。1. In a main valve or a sluice valve provided in an ordinary fluid piping system, a relief valve is attached to a valve body of the main valve or a valve body of the sluice valve. valve.
又はバタフライ型止め弁又はバタフライ型逆止め弁又は
ボ−ル弁の各弁体に逃がし弁が取付けられたことを特徴
とする逃がし弁付き弁。2. A relief valve provided in each valve body of a stop valve, a butterfly type stop valve, a butterfly type check valve, or a ball valve provided in an ordinary fluid piping system. Valve with valve.
弁の弁体に設けられる逃がし弁が逆止め型とされたこと
を特徴とする請求項１又は２記載の逃がし弁付き弁。3. A valve with a relief valve according to claim 1, wherein in the valve provided in the fluid pipe, the relief valve provided in the valve body of the valve is of a non-return type.
型の逃がし弁を取付けるか又は流体配管系中に設けられ
た弁体に該逃がし弁を取付けた弁を単数又は複数個取付
けたことを特徴とする逃がし弁付き弁を使用した配管方
法。4. A non-return type relief valve is attached to a valve element provided in a fluid piping system, or one or more valves having the relief valve are attached to a valve element provided in a fluid piping system. A piping method using a valve with a relief valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27812392A JPH06109153A (en) | 1992-09-22 | 1992-09-22 | Valve with relief valve and piping method using valve with relief valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27812392A JPH06109153A (en) | 1992-09-22 | 1992-09-22 | Valve with relief valve and piping method using valve with relief valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH06109153A true JPH06109153A (en) | 1994-04-19 |
Family
ID=17592934
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP27812392A Pending JPH06109153A (en) | 1992-09-22 | 1992-09-22 | Valve with relief valve and piping method using valve with relief valve |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH06109153A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150101687A1 (en) * | 2013-10-16 | 2015-04-16 | Hamilton Sundstrand Corporation | Liquid Valve Design with internal Check Valve |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57144354A (en) * | 1981-02-27 | 1982-09-06 | Toshiba Corp | Valve mechanism for low temperature |
| JPS6059877B2 (en) * | 1980-07-17 | 1985-12-27 | 大日本インキ化学工業株式会社 | Method for manufacturing clam shell-like Go stones |
| JPH0253576B2 (en) * | 1983-02-28 | 1990-11-19 | Kajima Corp |
-
1992
- 1992-09-22 JP JP27812392A patent/JPH06109153A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6059877B2 (en) * | 1980-07-17 | 1985-12-27 | 大日本インキ化学工業株式会社 | Method for manufacturing clam shell-like Go stones |
| JPS57144354A (en) * | 1981-02-27 | 1982-09-06 | Toshiba Corp | Valve mechanism for low temperature |
| JPH0253576B2 (en) * | 1983-02-28 | 1990-11-19 | Kajima Corp |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150101687A1 (en) * | 2013-10-16 | 2015-04-16 | Hamilton Sundstrand Corporation | Liquid Valve Design with internal Check Valve |
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