JP2001065708A - Pressure reduction water stopping plug embedoed in earth - Google Patents
Pressure reduction water stopping plug embedoed in earthInfo
- Publication number
- JP2001065708A JP2001065708A JP24694299A JP24694299A JP2001065708A JP 2001065708 A JP2001065708 A JP 2001065708A JP 24694299 A JP24694299 A JP 24694299A JP 24694299 A JP24694299 A JP 24694299A JP 2001065708 A JP2001065708 A JP 2001065708A
- Authority
- JP
- Japan
- Prior art keywords
- water
- main body
- pressure
- valve seat
- pressure reducing
- 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.)
- Granted
Links
Landscapes
- Lift Valve (AREA)
- Safety Valves (AREA)
- Details Of Valves (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、主に地中の給水管
のメ−タ−手前に設置される止水栓に、減圧弁としての
機能を組み込んだ、地中埋設型減圧止水栓に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an underground buried type decompression stopcock in which a function as a pressure reducing valve is incorporated into a stopcock installed mainly in front of a meter of an underground water supply pipe. About.
【０００２】[0002]
【従来の技術】従来、高圧地域においては、水の経済、
水撃作用による振動、配管器具類の破損防止等の目的で
減圧弁を使用することが一般的に行われているが、それ
らのものはいずれも止水装置を有していないため、減圧
弁の上流側に止水栓を別体に設置するか、同一出願人に
よる実公平８−７４５６号公報のように、減圧ピストン
上方に止水装置を同軸上にもうけたものを採用するかの
方法が行われてきた。2. Description of the Related Art Conventionally, in a high pressure area, water economy,
It is common practice to use pressure reducing valves for the purpose of preventing vibrations caused by water hammer, damage to plumbing equipment, etc., but none of them have a water shutoff device. Method of separately installing a water stopcock on the upstream side of the above, or adopting a water stop device provided coaxially above the pressure reducing piston as disclosed in Japanese Utility Model Publication No. 8-7456 by the same applicant. Has been done.
【０００３】しかし、前者のものにあっては、コストが
高くつき、取付長さが長くなり、従来のメ−タ−ボック
ス内に収容しきれない、という問題が生じ、また、後者
にあっては、万一減圧弁が故障したとき、さらに上流側
の止水栓を探さねばならず、減圧弁の修理、交換が大変
な作業になり、さらにその構造上、ストレ−ナを装着す
るのが困難で、やはり、事故の原因となりやすいという
欠陥があった。[0003] However, in the former case, there is a problem that the cost is high, the mounting length is long, and it cannot be accommodated in the conventional meter box. In the event that the pressure reducing valve breaks down, the water stopcock on the upstream side must be sought, and repair and replacement of the pressure reducing valve becomes a serious task.In addition, it is necessary to install a strainer due to its structure. There was a defect that it was difficult, and it was easy to cause an accident.
【０００４】[0004]
【発明が解決しようとする課題】上記点に鑑み、本発明
においては、減圧弁の修理、ストレ−ナの設置、点検が
容易にでき、減圧弁としての機能を長く維持でき、でき
るだけ取付スパンを短くした小型の減圧止水栓を提供す
ることを目的とする。In view of the above, in the present invention, repair of the pressure reducing valve, installation of the strainer, and inspection can be easily performed, the function as the pressure reducing valve can be maintained for a long time, and the mounting span is as short as possible. It is an object of the present invention to provide a small and compact decompression stopcock.
【０００５】[0005]
【課題を解決するための手段】そのため本発明において
は、弁箱の上流側にもうける上向きの止水弁座を、下端
に駒パッキンを装着した止水桿でねじの回転により確実
に止水する止水装置と、その下流側弁箱に、上記止水桿
とできるだけ近接して平行に接続される、外周部に円筒
状のストレ−ナを装着する減圧部本体と、その中に収容
され、減圧ばねと減圧部本体下方に形成する二次室内の
二次圧とにより上下動する減圧ピストンとにより基本的
には構成され、上記減圧ピストンの上方に形成される空
気室内に外部から汚水が入り込まないよう、しかし、空
気室内の上昇圧力は外部に逃がすよう、空気室上端に接
続されるプラグに、Ｏリングを逆止弁として装着したも
のである。Therefore, in the present invention, the upwardly directed water stop valve seat provided on the upstream side of the valve box is securely stopped by the rotation of a screw with a water stop rod having a piece packing attached to a lower end thereof. A water stopping device, a pressure reducing portion main body having a cylindrical strainer attached to an outer peripheral portion thereof, which is connected in parallel with the water stopping rod as close as possible to the downstream valve box and accommodated therein; It is basically composed of a pressure reducing spring and a pressure reducing piston that moves up and down by a secondary pressure in a secondary chamber formed below the pressure reducing portion main body, and sewage enters from outside into an air chamber formed above the pressure reducing piston. The O-ring is mounted as a check valve on a plug connected to the upper end of the air chamber so that the rising pressure in the air chamber is released to the outside, but not to the outside.
【０００６】[0006]
【発明の実施の形態】以下本発明の実施の形態を図面に
基づいて詳細に説明する。Embodiments of the present invention will be described below in detail with reference to the drawings.
【０００７】図１に本発明の１実施例を示すが、弁箱１
には、流入口２の下流側に上向きの止水弁座３を、その
上方に一次室４を、その下方、下流側にガイド壁５に囲
まれた二次室６を、さらにその下流側に、流入口２と同
一軸心上に流出口７をそれぞれもうけている。また、弁
箱１の止水弁座３と同一軸心上端部にグランド８を接続
固定し、ガイド壁５と同一軸心上端部に減圧部本体９を
ねじ接続する。FIG. 1 shows an embodiment of the present invention.
A water shutoff valve seat 3 facing upward on the downstream side of the inflow port 2, a primary chamber 4 above it, a secondary chamber 6 surrounded by a guide wall 5 below and downstream thereof, and further downstream thereof. In addition, an outlet 7 is provided on the same axis as the inlet 2. In addition, a gland 8 is connected and fixed to the upper end of the same axial center as the water stop valve seat 3 of the valve box 1, and the pressure reducing unit main body 9 is screw-connected to the upper end of the same axial center as the guide wall 5.
【０００８】グランド８は内部に作動用雌ねじ１０を有
しており、それに螺合する作動用雌ねじ１１を有する止
水桿１２が回転上下動し、下端に装着した駒パッキン１
３が止水弁座３に密着、離脱して止水、通水状態となる
ようにしている。The gland 8 has a female screw 10 for operation therein, and a water stop rod 12 having a female screw 11 for operation that is screwed into the gland 8 rotates up and down, and the piece packing 1 attached to the lower end thereof.
3 is in close contact with and separates from the water stop valve seat 3 so as to be in a water stop and water passing state.
【０００９】減圧部本体９は、外周部に円筒状のストレ
−ナ１４をストレ−ナパッキン１５の摩擦力により容易
には離脱しないよう装着し、側方の対応する位置に複数
個の通水穴１６を穿設し、その上方にシリンダ１７を、
下方にシリンダ１７と同径の下向きの減圧弁座１８を形
成する。The pressure reducing unit main body 9 has a cylindrical strainer 14 mounted on the outer periphery so as not to be easily detached by the frictional force of the strainer packing 15, and a plurality of water holes are provided at corresponding positions on the sides. 16 and a cylinder 17 above it,
A downward pressure reducing valve seat 18 having the same diameter as the cylinder 17 is formed downward.
【００１０】１９は減圧ピストンであり、上記シリンダ
１７に密着する環状パッキン２０を上端部に装着し、下
端部に、減圧弁座１８に密着、離脱するテ−パ−状の減
圧パッキン２１を、ガイド壁５を摺動する弁駒２２によ
り離脱しないよう装着する。さらに内部上端部を穿って
ばね室２３をもうけ、その上方部にねじ２４に囲まれた
空気室２５を形成する。Reference numeral 19 denotes a decompression piston. An annular packing 20 which is in close contact with the cylinder 17 is attached to the upper end, and a tapered decompression packing 21 which is in close contact with and detaches from the decompression valve seat 18 is provided at the lower end. The guide wall 5 is mounted so as not to be detached by the sliding slide 22. Further, a spring chamber 23 is formed by drilling the inner upper end, and an air chamber 25 surrounded by screws 24 is formed above the spring chamber 23.
【００１１】ねじ２４上端にプラグ２６を接続し、その
下方に調節リング２７を螺合させている。２８は主にば
ね室２３に収容され、調節リング２７に係止されて減圧
ピストン１９に下向きの押圧力を与える減圧ばねであ
る。A plug 26 is connected to the upper end of the screw 24, and an adjusting ring 27 is screwed below the plug 26. Reference numeral 28 denotes a pressure reducing spring mainly housed in the spring chamber 23 and locked by the adjustment ring 27 to apply a downward pressing force to the pressure reducing piston 19.
【００１２】プラグ２６の鍔部２９下端に下細りのテ−
パ−部３０とその下に平行部３１を形成し、Ｏリング３
２を外径と上端部を拘束させず、一定の間隙をもうけ、
テ−パ−部３０、平行部３１と減圧部本体９の平坦部３
３に密着するよう装着する。A tapered lower end is provided at the lower end of the flange 29 of the plug 26.
A par portion 30 and a parallel portion 31 under the par portion 30 are formed.
2 make a constant gap without restraining the outer diameter and upper end,
The taper portion 30, the parallel portion 31, and the flat portion 3 of the decompression portion main body 9.
Attach it to 3
【００１３】図１は配管末端の蛇口を少し開いて水を流
している状態を示しており、流入口２から一次室４を通
った高圧の一次水は、ストレ−ナ１４、通水穴１６を通
って減圧弁座１８と減圧パッキン２１の間隙を通過し、
低圧の二次水となって二次室６内に流れ込み、蛇口から
流出しているが、蛇口をさらに開けば、二次室６内の二
次圧力が低下し、減圧ばね２８に押圧されて減圧ピスト
ン１９は下降し、流量をさらに増大する。蛇口を締め切
ったとき二次圧は最大となり、減圧ばね２８を押圧して
減圧ピストン１９は最上昇し、減圧パッキン２１が減圧
弁座１８に押圧されて一次室４内の一次水を遮断する。
そのときの二次圧が設定圧になるよう、あらかじめ減圧
ばね２８を調整しておけばよい。調節リング２７を下降
させれば設定圧力が高くなり、上昇させれば、逆に低く
なるが、一定厚さの圧力調整板を入れるなどして調節リ
ング２７を省略することもできる。このときは、減圧ば
ね２８の一端はプラグ２６に係止される。本発明では、
減圧ピストン１９の上端部を穿ってばね室２３を形成し
ているため、減圧部本体９をそれだけ短く、コンパクト
にすることができるが、調節リング２７を省略する場合
は、プラグ２７を穿ってばね室２３とすることもでき
る。FIG. 1 shows a state in which the faucet at the end of the pipe is slightly opened to flow water. The high-pressure primary water passing through the primary chamber 4 from the inlet 2 is supplied to the strainer 14 and the water passage hole 16. Through the gap between the pressure reducing valve seat 18 and the pressure reducing packing 21,
Although it becomes low-pressure secondary water and flows into the secondary chamber 6 and flows out of the faucet, if the faucet is further opened, the secondary pressure in the secondary chamber 6 decreases and is pressed by the pressure reducing spring 28. The pressure reducing piston 19 moves down, further increasing the flow rate. When the faucet is shut off, the secondary pressure becomes maximum, and the pressure reducing spring 28 is pressed, the pressure reducing piston 19 rises to the maximum, and the pressure reducing packing 21 is pressed by the pressure reducing valve seat 18 to shut off the primary water in the primary chamber 4.
The pressure reducing spring 28 may be adjusted in advance so that the secondary pressure at that time becomes the set pressure. When the adjusting ring 27 is lowered, the set pressure increases, and when the adjusting ring 27 is raised, the pressure decreases. On the other hand, the adjusting ring 27 may be omitted by inserting a pressure adjusting plate having a constant thickness. At this time, one end of the pressure reducing spring 28 is locked by the plug 26. In the present invention,
Since the spring chamber 23 is formed by piercing the upper end of the decompression piston 19, the decompression unit main body 9 can be made shorter and more compact. However, when the adjusting ring 27 is omitted, the plug 27 is pierced to pierce the spring. The room 23 can also be used.
【００１４】シリンダ１７と減圧弁座１８を同径に形成
しておけば、一次圧が変動しても二次圧の変動を小さく
押さえることができる。減圧ピストン１９が上下動する
ときは、環状パッキン２０部分がシリンダ１７に拘束さ
れ、弁駒２２がガイド壁５に拘束されるため、安定して
作動する。減圧パッキン２１は流線に沿ったテ−パ−状
に形成されているため、急激な流路の変更もないので損
失抵抗が少なく、それだけ大流量が期待できる。If the cylinder 17 and the pressure reducing valve seat 18 are formed to have the same diameter, the fluctuation of the secondary pressure can be suppressed even if the primary pressure fluctuates. When the pressure reducing piston 19 moves up and down, the annular packing 20 is restrained by the cylinder 17 and the valve piece 22 is restrained by the guide wall 5, so that the operation is stable. Since the decompression packing 21 is formed in a tapered shape along the flow line, there is no sudden change in the flow path, so that the loss resistance is small and a large flow rate can be expected.
【００１５】万一、空気室２５内に水が入ったような場
合には、空気室２５内の圧力が高くなるが、その結果二
次圧も高くなり、正常な減圧弁としての機能を失うこと
になってしまう。しかし、本発明においては、外方と上
方を拘束されないＯリング３２をプラグ２６に装着して
いるので、Ｏリング３２をゴム弾性に打ち勝って外方に
拡開し、圧力逃がしをするため、二次圧の上昇を防止す
ることが可能になる。空気室２５内の圧力が低下すれ
ば、Ｏリング３２はゴム弾性により収縮するが、このと
き、テ−パ−部３０によりＯリング３２は上方にずれる
ことがなく、平坦部３３に密着する。そのため、地中の
汚水が空気室２５内に入り込むことはない。すなわち、
Ｏリング３２に一種の逆止弁としての働きをさせてい
る。In the event that water enters the air chamber 25, the pressure in the air chamber 25 increases, but as a result, the secondary pressure also increases, losing the function as a normal pressure reducing valve. It will be. However, in the present invention, since the O-ring 32, which is not restrained outward and upward, is attached to the plug 26, the O-ring 32 expands outward by overcoming the rubber elasticity, thereby releasing the pressure. It is possible to prevent an increase in the next pressure. When the pressure in the air chamber 25 decreases, the O-ring 32 contracts due to rubber elasticity. At this time, the O-ring 32 does not shift upward due to the taper portion 30 and adheres to the flat portion 33. Therefore, underground sewage does not enter the air chamber 25. That is,
The O-ring 32 functions as a kind of check valve.
【００１６】減圧弁座１８は、シリンダ１７と同径のシ
リンダにし、減圧パッキン２１として環状パッキン２０
を使用し、シリンダから下方に離脱させて通水するよう
にもでき、流量特性は低下するが、構造が簡単で、組
立、分解も容易となり、コストを低減できる。この時に
は、ガイド壁５を省略してもよい。The pressure reducing valve seat 18 is a cylinder having the same diameter as the cylinder 17.
Can be used to separate water downward from the cylinder to allow water to flow. Although the flow characteristics are reduced, the structure is simple, assembly and disassembly are easy, and costs can be reduced. At this time, the guide wall 5 may be omitted.
【００１７】ストレ−ナ１４の目詰まり、減圧ピストン
１９のパッキン類の事故等があったときは、止水桿１２
を回転させると、グランド８内に形成された作動用雌ね
じ１０に螺合する作動用雄ねじ１１により止水桿１２は
回転しながら下降し、駒パッキン１３が止水弁座３に密
着して流入口２からの水を遮断するので、その後で減圧
部本体９を弁箱１から取り外して修理、点検を行えばよ
い。駒パッキン１３を止水弁座３に押圧するため、止水
も確実に行われる。また、Ｏリング１５の摩擦力によ
り、ストレ−ナ１４は簡単に離脱することはないが、力
を加えれば取り外しは容易に行える。If the strainer 14 is clogged or the packing of the pressure reducing piston 19 is accidentally damaged, etc.
Is rotated, the water stop rod 12 is lowered while rotating by the operating male screw 11 screwed into the operating female screw 10 formed in the gland 8, and the piece packing 13 comes into close contact with the water stop valve seat 3 and flows. Since the water from the inlet 2 is shut off, the main body 9 of the pressure reducing unit may be removed from the valve box 1 for repair and inspection. Since the piece packing 13 is pressed against the water shutoff valve seat 3, the water shutoff is also reliably performed. The strainer 14 does not easily come off due to the frictional force of the O-ring 15, but can be easily removed by applying a force.
【００１８】[0018]
【発明の効果】上述したように本発明においては、ねじ
の回転により止水弁座を駒パッキンが押圧して確実に止
水する止水桿と、外周部に円筒状のストレ−ナを装着
し、弁箱から共に離脱容易な減圧部本体とを、できるだ
け接近させて平行にもうけているため、取付スパンを短
くすることが可能になり、また、減圧弁およびストレ−
ナの点検、修理が容易に行えるほか、空気室に水が入っ
て二次圧が高くなるのを有効に防止できるため、減圧弁
としての機能を長く維持できるという効果がある。As described above, in the present invention, the water stop valve seat is pressed against the water stop valve seat by the rotation of the screw to securely stop the water, and the cylindrical strainer is mounted on the outer peripheral portion. In addition, since the pressure reducing unit main body, which can be easily detached from the valve box, is provided as close to and parallel as possible, the mounting span can be shortened.
In addition to being able to easily inspect and repair the air, it is possible to effectively prevent the water from entering the air chamber and increase the secondary pressure, so that the function as the pressure reducing valve can be maintained for a long time.
【図１】本発明の１実施例を示す、通水状態に於ける縦
断面図である。FIG. 1 is a longitudinal sectional view showing a water flowing state according to an embodiment of the present invention.
１ 弁箱 ２ 流入口 ３ 止水弁座 ４ 一次室 ６ 二次室 ７ 流出口 ９ 減圧部本体 １１ 作動用雄ねじ １２ 止水桿 １３ 駒パッキン １４ ストレ−ナ １６ 通水穴 １７ シリンダ １８ 減圧弁座 １９ 減圧ピストン ２０ 環状パッキン ２１ 減圧パッキン ２３ ばね室 ２５ 空気室 ２６ プラグ ２８ 減圧ばね ３２ Ｏリング DESCRIPTION OF SYMBOLS 1 Valve box 2 Inlet 3 Water stop valve seat 4 Primary chamber 6 Secondary chamber 7 Outlet 9 Pressure reducing unit main body 11 Operating male screw 12 Water stop rod 13 Piece packing 14 Strainer 16 Water passage hole 17 Cylinder 18 Pressure reducing valve seat 19 pressure reducing piston 20 annular packing 21 pressure reducing packing 23 spring chamber 25 air chamber 26 plug 28 pressure reducing spring 32 O-ring
Claims (2)
流側に一次室を、一次室の下方下流側に二次室を、さら
にその下流側に流出口を流入口と同一軸心上にもうける
弁箱と、下端に上記止水弁座を閉塞する駒パッキンを装
着し、弁箱上端部に接続されたグランド内を作動用雄ね
じにより回転上下動する止水桿と、外周部に円筒状のス
トレ−ナを装着し、側方の対応する位置に複数個の通水
穴を穿設し、内部には、上記通水穴の上方にシリンダ
を、下方に下向きの減圧弁座をもうけ、止水桿と平行
に、できるだけ近接させて弁箱上端部に接続された減圧
部本体と、上記シリンダを摺動する環状パッキンおよび
減圧弁座に密着、離脱する減圧パッキンを装着する減圧
ピストンと、上記減圧ピストン上端部に形成される空気
室内に収容され、減圧ピストンに下向きの押圧力を与え
る減圧ばねとからなる地中埋設型減圧止水栓。1. A primary chamber is located upstream and downstream of an inlet, a secondary chamber is located below and downstream of the primary chamber, and an outlet is located downstream and downstream of the primary chamber via an upward water shutoff valve seat. A valve box provided on the heart, a piece packing for closing the water-stop valve seat at the lower end, a water-stop rod that rotates up and down by a male screw for operation in a gland connected to the upper end of the valve box, and an outer peripheral portion , A cylindrical strainer is mounted, and a plurality of water holes are drilled at corresponding positions on the sides. Inside the cylinder, a cylinder is provided above the water holes, and a pressure-reducing valve seat is provided downward. The decompression unit main body connected to the upper end of the valve box as close as possible to the water stop rod, the annular packing sliding on the cylinder, and the decompression packing attached to and detached from the decompression valve seat. A piston and an air chamber formed at the upper end of the decompression piston, Underground type vacuum stopcock consisting of a pressure reducing spring in piston providing a downward pressing force.
上記プラグに、外部からの汚水の侵入を防止するととも
に、空気室内の上昇圧力を外方に逃がすべく、Ｏリング
を逆止弁として装着してなる請求項１記載の地中埋設型
減圧止水栓。2. A plug is connected to the upper end of the pressure reducing unit main body,
2. The underground buried decompression water stop according to claim 1, wherein the plug is provided with an O-ring as a check valve so as to prevent infiltration of sewage from the outside and to release a rising pressure in the air chamber to the outside. plug.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24694299A JP4224600B2 (en) | 1999-09-01 | 1999-09-01 | Underground decompression stop cock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24694299A JP4224600B2 (en) | 1999-09-01 | 1999-09-01 | Underground decompression stop cock |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2001065708A true JP2001065708A (en) | 2001-03-16 |
| JP4224600B2 JP4224600B2 (en) | 2009-02-18 |
Family
ID=17156045
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP24694299A Expired - Fee Related JP4224600B2 (en) | 1999-09-01 | 1999-09-01 | Underground decompression stop cock |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4224600B2 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006226497A (en) * | 2005-02-21 | 2006-08-31 | Toto Ltd | Stop cock device with pressure control function, and cock device and combination faucet device equipped with it |
| GB2439335A (en) * | 2002-01-10 | 2007-12-27 | Caleffi Spa | Combined pressure reducer and manifold |
| JP2008308984A (en) * | 2008-07-29 | 2008-12-25 | Takemura Seisakusho:Kk | Water stop valve |
| JP2013113377A (en) * | 2011-11-29 | 2013-06-10 | Sekisui Chem Co Ltd | Pressure reducing valve, and mounting method of pressure reducing valve |
| CN110863535A (en) * | 2019-11-25 | 2020-03-06 | 吴文鑫 | Water flow pressure relief pipeline protector |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP5999480B2 (en) * | 2012-06-18 | 2016-09-28 | Toto株式会社 | Stopcock device with pressure adjusting function, faucet device and hot-water mixed faucet device having the same |
| JP5999481B2 (en) * | 2012-06-18 | 2016-09-28 | Toto株式会社 | Stopcock device with pressure adjusting function, faucet device and hot-water mixed faucet device having the same |
| JP5936172B2 (en) * | 2012-06-25 | 2016-06-15 | Toto株式会社 | Stopcock device with pressure adjusting function, faucet device and hot-water mixed faucet device having the same |
| JP5999484B2 (en) * | 2012-07-02 | 2016-09-28 | Toto株式会社 | Stopcock device with pressure adjusting function, faucet device and hot-water mixed faucet device having the same |
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1999
- 1999-09-01 JP JP24694299A patent/JP4224600B2/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2439335A (en) * | 2002-01-10 | 2007-12-27 | Caleffi Spa | Combined pressure reducer and manifold |
| GB2439335B (en) * | 2002-01-10 | 2011-04-20 | Caleffi Spa | Water feeding assembly for boilers in sanitary water supply systems |
| JP2006226497A (en) * | 2005-02-21 | 2006-08-31 | Toto Ltd | Stop cock device with pressure control function, and cock device and combination faucet device equipped with it |
| JP4666280B2 (en) * | 2005-02-21 | 2011-04-06 | Ｔｏｔｏ株式会社 | Stopcock device with pressure adjusting function, faucet device and hot-water mixed faucet device having the same |
| JP2008308984A (en) * | 2008-07-29 | 2008-12-25 | Takemura Seisakusho:Kk | Water stop valve |
| JP2013113377A (en) * | 2011-11-29 | 2013-06-10 | Sekisui Chem Co Ltd | Pressure reducing valve, and mounting method of pressure reducing valve |
| CN110863535A (en) * | 2019-11-25 | 2020-03-06 | 吴文鑫 | Water flow pressure relief pipeline protector |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4224600B2 (en) | 2009-02-18 |
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