JPH0143574Y2 - - Google Patents
Info
- Publication number
- JPH0143574Y2 JPH0143574Y2 JP1981066745U JP6674581U JPH0143574Y2 JP H0143574 Y2 JPH0143574 Y2 JP H0143574Y2 JP 1981066745 U JP1981066745 U JP 1981066745U JP 6674581 U JP6674581 U JP 6674581U JP H0143574 Y2 JPH0143574 Y2 JP H0143574Y2
- Authority
- JP
- Japan
- Prior art keywords
- valve
- valve body
- guide hole
- seat
- vertical
- 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
Links
- 238000007789 sealing Methods 0.000 claims description 27
- 230000002093 peripheral effect Effects 0.000 claims description 11
- 230000003247 decreasing effect Effects 0.000 claims description 3
- 230000001154 acute effect Effects 0.000 claims description 2
- 239000012530 fluid Substances 0.000 description 18
- 238000012856 packing Methods 0.000 description 12
- 210000004907 gland Anatomy 0.000 description 6
- 230000000694 effects Effects 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Lift Valve (AREA)
Description
【考案の詳細な説明】
〔産業上の利用分野〕
この考案は、高圧流体の制御に使用するボンネ
ツトレス高圧玉形弁に関する。[Detailed Description of the Invention] [Industrial Application Field] This invention relates to a bonnetless high-pressure globe valve used for controlling high-pressure fluid.
〔従来技術及び解決しようとする課題〕
高圧流体を制御する必要性は高く、化学装置に
数多く使用されまた石油化学の配管装置にも、高
圧流体を制御する玉形弁が多方面に使用されてい
る。[Prior art and problems to be solved] There is a strong need to control high-pressure fluids, and globe valves for controlling high-pressure fluids are widely used in chemical equipment and petrochemical piping equipment. There is.
従来形の高圧玉形弁では、弁箱とフタの結接に
厚いフランジと強力なボルトを必要とし、弁自体
の重量が過大になりすぎる欠点があり、また弁箱
とフタの結接面に挟持するガスケツトからの流体
漏洩があると、流体通路を一度遮断し、ガスケツ
トを交換しなければならないという問題点を内在
していた。 Conventional high-pressure globe valves require thick flanges and strong bolts to connect the valve body and lid, which has the disadvantage of making the valve itself too heavy. If fluid leaks from the sandwiched gasket, there is a problem in that the fluid passage must be temporarily shut off and the gasket must be replaced.
また、流体の外部漏洩を防止するためのグラン
ドパツキン実長さおよび、弁全開時にパツキン室
への高圧流体の侵入を防止して、パツキンの交換
を容易にするための、逆座の構造が複雑になり、
弁全体が大きくなり過ぎる問題も併存している。 In addition, the actual length of the gland packing is required to prevent external leakage of fluid, and the structure of the reverse seat is complicated to prevent high-pressure fluid from entering the packing chamber when the valve is fully open and to facilitate replacement of the packing. become,
There is also the problem that the entire valve becomes too large.
さらに高圧流体を、弁全閉時に仕切るため、太
い弁棒や強力な弁棒支持構造を必要とするため、
必然的に弁自体が大きく、重い重量を有するもの
となる欠点をも有している。 Furthermore, in order to separate the high-pressure fluid when the valve is fully closed, a thick valve stem and strong valve stem support structure are required.
This also has the disadvantage that the valve itself is inevitably large and heavy.
そのため、多数の弁を使用して形成する石油化
学等の配管装置では、配管装置の支持構造に高い
設備費を要するという問題があつた。 Therefore, in petrochemical piping equipment formed using a large number of valves, there has been a problem in that the support structure of the piping equipment requires high equipment costs.
この考案は、これらの問題点を解決し、ボンネ
ツトを有さない、従つて厚いフランジや強力なボ
ルトを持たないボンネツトレス形に形成すると共
に、シール効果が高く、簡潔な構造にし得ると共
に、軽量に形成し得るボンネツトレス高圧玉形弁
を提供することを目的とするものである。 This invention solves these problems and forms a bonnetless shape without a bonnet, therefore, without thick flanges or strong bolts, has a high sealing effect, has a simple structure, and is lightweight. It is an object of the present invention to provide a bonnet stress high pressure globe valve that can be formed.
以下、図面を参照して本考案の一実施例を詳細
に説明する。
Hereinafter, one embodiment of the present invention will be described in detail with reference to the drawings.
第１図は、本願考案に係るボンネツトレス高圧
玉形弁の一部を断面とした正面図である。 FIG. 1 is a partially sectional front view of a bonnetless high-pressure globe valve according to the present invention.
図中１は弁箱である。弁箱１は円形断面形状を
有する水平弁箱部２と、該水平弁箱部２の中心部
に立設し、円形断面形状を有する垂直弁箱部３と
で成つており、鋼製材を一体に型打鍛造して形成
されている。 In the figure, 1 is the valve box. The valve box 1 consists of a horizontal valve box part 2 having a circular cross-sectional shape, and a vertical valve box part 3 standing upright in the center of the horizontal valve box part 2 and having a circular cross-sectional shape, and is integrally made of steel. It is formed by die forging.
水平弁箱部２には、横軸線上の両端面に開口す
る入口導孔２１と出口導孔２２とが横軸上に設け
られており、垂直弁箱部３の縦軸線上に穿設した
垂直導孔３１で連通するように形成されている。
この場合、入口導孔２１と垂直導孔３１との連接
部は、後述する弁座面３２からやや下方に離して
設け、この連接部でほぼ90度に方向を変える流体
の乱れを調整すると共に垂直導孔３１と出口導孔
２２との連接部は、弁座面３２を形成する面と、
後述する弁体案内孔３３との連接縁に出口導孔２
２の下縁が位置するように開口部３４を形成す
る。 The horizontal valve box part 2 is provided with an inlet guide hole 21 and an outlet guide hole 22 which are opened on both end faces on the horizontal axis, and are bored on the vertical axis of the vertical valve box part 3. They are formed so as to communicate through a vertical guide hole 31.
In this case, the connecting part between the inlet guide hole 21 and the vertical guide hole 31 is provided at a distance slightly downward from the valve seat surface 32, which will be described later, to adjust the turbulence of the fluid that changes direction at approximately 90 degrees at this connecting part. The connecting portion between the vertical guide hole 31 and the outlet guide hole 22 has a surface forming the valve seat surface 32,
An outlet guide hole 2 is provided at the connecting edge with a valve body guide hole 33 which will be described later.
The opening 34 is formed so that the lower edge of the opening 34 is located.
一方、垂直弁箱３には、垂直導孔３１と同心に
上端面に開口するパツキン封嵌孔３５と、該パツ
キン封嵌孔３５の下縁に連接してやや径を小さく
形成し内周壁に左雌ネジを螺設した逆座取付部３
６と、該逆座取付部３６の下縁に連接して、逆座
取付部３６よりやや径を小さくかつ垂直導孔３１
より径を大きく形成した弁体案内孔３３が形成さ
れている。この場合、弁体案内孔３３の逆座取付
部３６の下端部に、細幅に面取りすることにより
順次縮径して形成した封塞縁３８を形成する。 On the other hand, the vertical valve box 3 has a packing sealing hole 35 that opens on the upper end surface concentrically with the vertical guide hole 31, and a packing sealing hole 35 that is connected to the lower edge of the packing sealing hole 35 and has a slightly smaller diameter. Reverse mounting part 3 with female thread
6, and a vertical guide hole 31 connected to the lower edge of the reverse seat mounting part 36 and having a diameter slightly smaller than that of the reverse seat mounting part 36.
A valve body guide hole 33 is formed with a larger diameter. In this case, a sealing edge 38 is formed at the lower end of the reverse seat mounting portion 36 of the valve body guide hole 33 by gradually reducing the diameter by chamfering it into a narrow width.
さらに、弁体案内孔３３と垂直導孔３１との連
接面は、水平弁箱部２の横軸線上に位置するよう
に形成され、この面に開口する垂直導孔３１の開
口縁に弁座面３２が形成されている。この弁座面
３２は、開口縁を円錐側面状に細幅に面取りする
ことにより、上方へ向いて拡開して形成されてい
て、その着座角度は、後述するように弁体４の縮
径した先端部の中心角に対して、ほぼ２倍の角度
差を設けて大きく設定する。 Furthermore, the connecting surface between the valve body guide hole 33 and the vertical guide hole 31 is formed so as to be located on the horizontal axis of the horizontal valve box part 2, and the valve seat is located at the opening edge of the vertical guide hole 31 that opens on this surface. A surface 32 is formed. The valve seat surface 32 is formed by chamfering the opening edge into a narrow conical side surface to expand upwardly, and its seating angle is determined by the diameter reduction of the valve body 4 as described later. The center angle of the tip is set to have a large angle difference that is approximately twice that of the center angle of the tip.
一方、垂直弁箱部３の上端部外周壁には、ヨー
ク８を螺子嵌係止する雄ネジ部を有した弁箱螺子
部３７が形成されており、この弁箱螺子部３７の
下端縁に、垂直弁箱部３と一体に形成した水平段
部３ａが形成されている。 On the other hand, a valve box threaded part 37 having a male threaded part for screwing and locking the yoke 8 is formed on the outer peripheral wall of the upper end of the vertical valve box part 3. , a horizontal stepped portion 3a is formed integrally with the vertical valve box portion 3.
弁体４は、第２図および第３図に示すように、
弁箱１の弁体案内孔３３内を上下に摺動する円形
形状の外周壁部４１と、該外周壁部４１の下端面
に下方へ向いて順次縮径させて突設した截頭円錐
状の封塞部４２とにより形成されていて、この封
塞部と外周壁部４１の下端面との連接縁は弧状の
曲線部４３をもつて稜線が残らないように形成す
る。しかしてこの封塞部４２の一部を弁座面３２
に周接させて流体を封塞する。一方、弁体４の上
端部には、弁体４の外周壁部４１に開口していて
弁棒５の端頭部５１を遊嵌するための弁棒係合部
４５と、弁棒５の係止部５を遊嵌する遊嵌溝部４
４が形成されている。しかして弁体４は弁棒５に
対して揺動自在にルーに係合され、この弁体４は
弁体案内孔３３に案内されて上下動し、また弁棒
５は、弁体４を動かす上下方向以外の力を受ける
ことがない。 The valve body 4, as shown in FIGS. 2 and 3,
A circular outer peripheral wall portion 41 that slides vertically within the valve body guide hole 33 of the valve body 1, and a truncated conical shape that projects from the lower end surface of the outer peripheral wall portion 41 with its diameter gradually decreasing downward. The connecting edge between this sealing portion and the lower end surface of the outer peripheral wall portion 41 is formed with an arcuate curved portion 43 so that no ridgeline remains. However, a portion of the sealing portion 42 of the lever is removed from the valve seat surface 32.
The fluid is sealed by surrounding the fluid. On the other hand, at the upper end of the valve body 4, there is a valve stem engaging portion 45 that opens in the outer circumferential wall 41 of the valve body 4 and into which the end head 51 of the valve stem 5 is loosely fitted; Loose fitting groove portion 4 into which the locking portion 5 is loosely fitted
4 is formed. Thus, the valve body 4 is engaged with the valve rod 5 so as to be able to swing freely, and the valve body 4 is guided by the valve body guide hole 33 and moves up and down. It is not subject to any force other than in the vertical direction of movement.
さらに、弁棒５の係止部５２に連接して、やや
径を大きく形成した鍔状の肩部５４を設け、丁度
弁体４の遊嵌溝部４４の壁肉を挟持するように形
成し、同時に肩部５４の上部周縁には面取りする
ことにより弁棒逆座５５が形成されている。 Further, a flange-shaped shoulder portion 54 with a slightly larger diameter is provided in connection with the locking portion 52 of the valve stem 5, and is formed so as to sandwich the wall of the loose fitting groove portion 44 of the valve body 4. At the same time, a valve stem inverted seat 55 is formed by chamfering the upper peripheral edge of the shoulder portion 54.
６は逆座である。この逆座６は、外周に左雄ネ
ジを設けてリング状に形成され、その先端部（下
端側）の外周縁を面取りすることにより、下方へ
向いて順次縮径した面取り部６１が形成されてい
ると共に、該逆座６の先端部内周縁も、同様に下
方へ向いて順次縮径した面取りをすることにより
逆座面６２として形成されている。 6 is inverted. This reverse seat 6 is formed into a ring shape with a left-handed male thread on the outer periphery, and by chamfering the outer periphery of the tip (lower end side), a chamfered portion 61 whose diameter gradually decreases downward is formed. At the same time, the inner circumferential edge of the tip of the inverted seat 6 is also formed as an inverted seat surface 62 by similarly chamfering the diameter gradually decreasing downward.
そして、弁箱１の雌ネジで成る逆座取付部３６
に該逆座６を螺着することによつて、この逆座６
の外周先端部の面取り部６１を弁体案内孔３３の
封塞縁３８に着脱自在に当接させる。 Then, an inverted seat mounting portion 36 made of a female screw of the valve body 1
By screwing the reverse seat 6 to the
The chamfered portion 61 of the outer peripheral tip of the valve body guide hole 33 is brought into contact with the sealing edge 38 of the valve body guide hole 33 in a detachable manner.
また、弁棒５が上昇することにより弁体４が全
開した時に、逆座６の先端内周縁に形成した逆座
面６２に、弁棒逆座５５を当接させるように形成
し、これら面取り部６１及び逆座面６２の各当接
部分から、パツキン封嵌孔３５への流体の侵入を
防ぐようにしている。 In addition, when the valve body 4 is fully opened due to the rise of the valve stem 5, the valve stem inverted seat 55 is formed so as to come into contact with the inverted seat surface 62 formed on the inner peripheral edge of the tip of the inverted seat 6, and these chamfers are formed. Fluid is prevented from entering the packing sealing hole 35 from the contact portions of the portion 61 and the reverse seat surface 62.
７はパツキンである。このパツキン７は垂直弁
箱部３のパツキン封嵌孔３５に充填され、流体の
流出を防止している。 7 is Patsukin. This packing 7 is filled into the packing sealing hole 35 of the vertical valve box portion 3 to prevent fluid from flowing out.
８はヨークである。ヨーク８は環状部８１と、
該環状部８１の対向する外周壁部に一端部を固定
され他端部をボス部８３の対向する外周壁部に固
定した二本の支柱部８２とで形成されている。こ
の環状部８１の内周面には、雌ネジ部で成る螺子
部８４が形成されており、また、垂直弁箱部３の
外周面には雄ネジ部を有する弁箱螺子部３７が形
成されていて、これら雄ネジ部と雌ネジ部とを螺
着係止し、結接後、結接線の一部を点溶接して固
定するように形成する。この場合、環状部８１の
螺子部８４の長さを、弁箱螺子部３７の長さと同
一に形成し、環状部８１の下端縁が弁箱螺子部３
７の下端縁に当接して固定するように形成する。
また、この状態で環状部８１の上端縁が垂直弁箱
部３の上端面と一致するように形成する。 8 is a yoke. The yoke 8 has an annular portion 81;
It is formed of two struts 82 having one end fixed to the opposing outer circumferential wall of the annular portion 81 and the other end fixed to the opposing outer circumferential wall of the boss portion 83. A threaded portion 84 having a female thread is formed on the inner circumferential surface of this annular portion 81, and a valve box threaded portion 37 having a male threaded portion is formed on the outer circumferential surface of the vertical valve box portion 3. The male threaded portion and the female threaded portion are screwed together, and after tying, a part of the connecting line is spot welded to be fixed. In this case, the length of the threaded part 84 of the annular part 81 is formed to be the same as the length of the valve box threaded part 37, and the lower end edge of the annular part 81 is formed to be the same as the length of the valve box threaded part 37.
7 and fixed thereto.
Further, in this state, the upper edge of the annular portion 81 is formed to match the upper end surface of the vertical valve box portion 3.
また、環状部８１の対向する外側面に突設した
腕部８５には、二本のグランドボルト８６が係止
されており、さらに、該グランドボルト８６と係
合し、グランドナツト８７で調整されるグランド
フランジ９を設け、該グランドフランジ９で押圧
されるグランド９１を垂直弁箱部３のパツキン封
塞孔３５に遊嵌させ、パツキン７に適当な気密圧
を誘起させることにより、高圧流体の漏洩を封止
するように形成する。 Further, two gland bolts 86 are engaged with arm portions 85 protruding from opposing outer surfaces of the annular portion 81, and are further engaged with the gland bolts 86 and adjusted with a gland nut 87. The gland 91 pressed by the gland flange 9 is loosely fitted into the packing sealing hole 35 of the vertical valve body part 3, and by inducing an appropriate airtight pressure in the packing 7, high-pressure fluid is released. Formed to seal against leaks.
弁棒５は、その端頭部５１を弁体４とルーズに
係合させると共に、端頭部５１と対向する上端部
に螺設した弁棒螺子部５３を、ヨーク８のボス部
８３に螺止固定したスリーブ８８に螺嵌させ、弁
棒螺子部５３の端縁部に固定したハンドルを操作
し、弁体４を弁体案内孔３３内で上下方向に摺動
させて、弁体４の封塞部４２を弁座面３２に当接
させて高圧流体の制御又は封塞を行うように形成
する。 The valve stem 5 has its end head 51 loosely engaged with the valve body 4, and the valve stem threaded part 53 screwed on the upper end opposite to the end head 51 is screwed into the boss part 83 of the yoke 8. The valve body 4 is screwed into the fixed sleeve 88, and the handle fixed to the end edge of the valve stem threaded portion 53 is operated to slide the valve body 4 in the vertical direction within the valve body guide hole 33. The sealing portion 42 is formed to abut against the valve seat surface 32 to control or seal high-pressure fluid.
この考案は、以上のように構成されており、閉
弁する場合は、ハンドルを操作して弁棒５の弁体
４を弁体案内孔３３内で下方へ摺動させ、弁体４
の封塞部４２を弁座面３２に着座させるが、この
際、封塞部４２は、弁座面３２の拡開した着座角
度に対してほぼ二分の一の鋭角になるように形成
してあるので、細幅のアタリ面を形成し、わずか
な押圧力で、弾性変形し容易にタイトに接触する
アタリ面を形成することができる。 This device is constructed as described above, and when closing the valve, the valve body 4 of the valve stem 5 is slid downward within the valve body guide hole 33 by operating the handle, and the valve body 4 is
The sealing portion 42 is seated on the valve seat surface 32. At this time, the sealing portion 42 is formed at an acute angle that is approximately half of the seating angle at which the valve seat surface 32 is expanded. Therefore, it is possible to form a narrow strike surface, and to form a strike surface that is elastically deformed and easily makes tight contact with a slight pressing force.
次いで、開弁する場合は、弁棒５の弁体４を弁
体案内孔３３内で上方へ摺動させ、弁体４の封塞
部４２を弁座面３２から離隔させる。この際、弁
棒逆座５５が逆座６の逆座面６２に下方から当接
し、さらに、この逆座６の外周縁に形成した面取
り部６１が弁体案内孔３３の逆座取付部３６の封
塞縁３８と当接していることから、流体が上方へ
漏出することが有効に防止され得る。 Next, when opening the valve, the valve body 4 of the valve stem 5 is slid upward within the valve body guide hole 33, and the sealing portion 42 of the valve body 4 is separated from the valve seat surface 32. At this time, the valve stem reverse seat 55 contacts the reverse seat surface 62 of the reverse seat 6 from below, and the chamfered portion 61 formed on the outer peripheral edge of the reverse seat 6 is connected to the reverse seat mounting portion 36 of the valve body guide hole 33. Since it is in contact with the sealing edge 38 of , fluid can be effectively prevented from leaking upward.
なお、弁体４を弁体案内孔３３内に嵌入する場
合、先ず弁体４を取り付けた弁棒５を弁体案内孔
の上端開口から挿入した後、逆座６を嵌入して螺
合することにより、封塞縁３８に当接してシール
する。次いで、パツキン７をパツキン封嵌孔３５
に収容すればよい。 In addition, when fitting the valve body 4 into the valve body guide hole 33, first insert the valve stem 5 with the valve body 4 attached from the upper end opening of the valve body guide hole, and then fit the reverse seat 6 and screw together. This abuts against the sealing edge 38 and seals it. Next, the gasket 7 is inserted into the gasket sealing hole 35.
It should be accommodated in
この考案は上述の実施例に基づいて実用新案登
録請求の範囲に記載のように構成したので、従来
の高圧玉形弁のように厚いフランジ、強力なボル
トが不必要となり、弁自体を極めて軽量にするこ
とができる。また弁棒に右ネジを形成すると共
に、垂直弁箱部に設けた逆座に、左ネジを設ける
ことにより、弁全開時に該逆座は、より螺着しよ
うとする力を受けると同時に、弁棒逆座と逆座面
は、相互に接触面圧を増加するように移動しよう
とする力を受けるので、流体の封塞効果が高く、
この部分に複雑な逆止め機構を必要としない。
Since this device is constructed as described in the claims for utility model registration based on the above-mentioned embodiment, thick flanges and strong bolts unlike conventional high-pressure globe valves are unnecessary, and the valve itself is extremely lightweight. It can be done. In addition, by forming a right-hand thread on the valve stem and a left-hand thread on the reverse seat provided in the vertical valve body, the reverse seat receives more force to screw into the valve when the valve is fully opened, and at the same time The rod inverted seat and the reverse seat face receive a force that tries to move each other to increase the contact surface pressure, so the fluid sealing effect is high.
This part does not require a complicated check mechanism.
従つて垂直弁箱部の断面直径も小さく形成する
ことが可能となり弁全体を軽量コンパクトに形成
した高圧玉形弁を提供することができる。 Therefore, it is possible to make the cross-sectional diameter of the vertical valve body part small, and it is possible to provide a high-pressure globe valve in which the entire valve is made lightweight and compact.
また弁体は弁体案内孔に滑合状に案内され、同
時に弁体と弁棒はルーズに係合されているので、
制御中の高圧流体が弁体に作用しても、弁体が振
動することもなく、また弁棒に横方向の力を及ぼ
すことがなく、さらに弁体の封塞部は弁座面と角
度差を設け封塞部と弁座面のアタリを斜面と斜面
によるアタリ面に形成し、わずかな押圧力で弾性
変形し、タイトに接触するので、強力な支柱部を
有するヨークや太い弁棒は必要としなくなり、弁
全体として極めて軽量化することが可能となる。 In addition, the valve body is guided into the valve body guide hole in a sliding manner, and at the same time, the valve body and valve stem are loosely engaged, so that
Even when high-pressure fluid acts on the valve body during control, the valve body does not vibrate or exert lateral force on the valve stem, and the sealing part of the valve body is at an angle with the valve seat surface. The gap between the sealing part and the valve seat surface is formed with a difference between the slope and the slope, and the slight pressure force causes elastic deformation and tight contact. This eliminates the need for the valve, making it possible to significantly reduce the weight of the valve as a whole.
第１図は、本願考案に係るボンネツトレス高圧
玉形弁の一部を断面とした正面図、第２図は弁体
の正面図、第３図は一部を点線で示した弁体の平
面図である。
符号の説明、１……弁箱；２……水平弁箱部；
３……垂直弁箱部；２１……入口導孔；２２……
出口導孔；３１……垂直導孔；３２……弁座面；
３３……弁体案内孔；３４……開口部；３５……
パツキン封嵌孔；３６……逆座取付部；３７……
弁箱螺子部；４……弁体；４１……外周壁部；４
２……封塞部；４３……曲線部；４４……遊嵌溝
部；４５……弁棒係合部；５……弁棒；５１……
端頭部；５２……係止部；５３……弁棒螺子部；
６……逆座；７……パツキン；８……ヨーク；８
１……環状部；８２……支柱部；８３……ボス
部；８４……螺子部；８５……腕部；８６……グ
ランドボルト；８７……グランドナツト；８８…
…スリーブ；９……グランドフランジ；９１……
グランド。
FIG. 1 is a partially sectional front view of the bonnet stress high-pressure globe valve according to the present invention, FIG. 2 is a front view of the valve body, and FIG. 3 is a plan view of the valve body partially indicated by dotted lines. It is. Explanation of symbols: 1...Valve box; 2...Horizontal valve box part;
3... Vertical valve box part; 21... Inlet guide hole; 22...
Outlet guide hole; 31... Vertical guide hole; 32... Valve seat surface;
33... Valve body guide hole; 34... Opening; 35...
Packing sealing hole; 36... Inverted mounting part; 37...
Valve body screw part; 4... Valve body; 41... Outer peripheral wall part; 4
2... Sealing part; 43... Curved part; 44... Loose fitting groove part; 45... Valve stem engaging part; 5... Valve stem; 51...
End head; 52...locking part; 53...valve stem screw part;
6... Reverse seat; 7... Patsukin; 8... Yoke; 8
1... Annular part; 82... Support part; 83... Boss part; 84... Thread part; 85... Arm part; 86... Grand bolt; 87... Grand nut; 88...
...Sleeve;9...Ground flange;91...
ground.
Claims (1)
２の軸線と直交する方向に形成した円形断面形状
の垂直弁箱部３とで成る弁箱１を一体に形成し、 上記水平弁箱部２の横軸上に入口導孔２１と出
口導孔２２を形成するとともに、それらを連通さ
せる垂直導孔３１を形成し、 該垂直導孔３１と連通していて、上記垂直弁箱
部３に上端が開口し且つ該垂直導孔３１より大き
な内径を有する弁体案内孔３３を設け、 該弁体案内孔３３内に弁棒５を挿通すると共
に、該弁棒５の下端部にて上記垂直導孔３１に形
成した弁座面３２に着座してこれを閉塞する弁体
４を形成した、ボンネツトレス高圧玉形弁におい
て、 前記弁体４の下端部に位置する封塞部４２を、
上方へ向いて拡開した前記弁座面３２の着座角度
に対して二分の一の鋭角になるように下方へ縮径
させて形成すると共に、該弁体４を前記弁棒５の
下端部に揺動可能に取り付けることにより、該弁
棒５を降下させたとき弁体４の封塞部４２の下端
周縁部にて弁座面３２に当接して垂直導孔３１を
閉塞するようになつており、 さらに、前記弁体案内孔３３と前記弁棒５との
間隙を閉塞するべく、該弁体案内孔３３の上部に
パツキン７を収容し、該パツキン７の下部にて、
上記弁体案内孔３３の拡径された内周面に雌ネジ
で成る逆座取付部３６を形成すると共に該逆座取
付部３６の下端部に封塞縁３８を順次縮径して形
成し、また、上記逆座取付部３６と螺合する雄ネ
ジの形成されたリング状の逆座６を形成すると共
に該逆座６の下端部を順次縮径して面取部６１を
形成し、以て上記リング状の逆座６に上記弁棒５
を挿通させ、且つ逆座取付部３６に該逆座６を螺
合して上記面取部６１を封塞縁３８に当接させ、
さらに、弁棒５が上昇することにより弁体４が全
開した際、上記逆座６の逆座面６２に下方から当
接する凸状の弁棒逆座５５を該弁棒５に形成し、 また、垂直弁箱部３の外周面に雄ネジ部を有す
る弁箱螺子部３７を形成すると共に、該弁箱螺子
部３７の下端縁に垂直弁箱部３と一体に形成した
水平段部３ａを設け、上記雄ネジ部と螺合する雌
ネジ部で成る螺子部８４を形成した環状部８１を
設け、これら雄ネジ部と雌ネジ部とを螺着した
際、該環状部８１の下端縁が上記水平段部３ａと
当接するようにヨーク８を設けた、ことを特徴と
するボンネツトレス高圧玉形弁。[Claims for Utility Model Registration] A valve body 1 consisting of a horizontal valve body part 2 with a circular cross-section and a vertical valve body part 3 with a circular cross-section formed in a direction orthogonal to the axis of the horizontal valve body part 2. integrally formed, an inlet guide hole 21 and an outlet guide hole 22 are formed on the horizontal axis of the horizontal valve box part 2, and a vertical guide hole 31 is formed to communicate with them, and communicates with the vertical guide hole 31. A valve body guide hole 33 having an open upper end and a larger inner diameter than the vertical guide hole 31 is provided in the vertical valve box portion 3, and the valve rod 5 is inserted into the valve body guide hole 33. A bonnetless high-pressure globe valve is formed with a valve body 4 that seats on and closes a valve seat surface 32 formed in the vertical guide hole 31 at the lower end of the valve stem 5. The sealing portion 42 located at
The valve body 4 is formed by reducing its diameter downward to form an acute angle that is half of the seating angle of the valve seat surface 32 that expands upward, and the valve body 4 is attached to the lower end of the valve stem 5. By being swingably attached, when the valve stem 5 is lowered, the lower peripheral edge of the sealing part 42 of the valve body 4 comes into contact with the valve seat surface 32 to close the vertical guide hole 31. Further, in order to close the gap between the valve body guide hole 33 and the valve stem 5, a gasket 7 is housed in the upper part of the valve body guide hole 33, and a gasket 7 is housed in the lower part of the gasket 7.
A reverse seat mounting portion 36 made of a female screw is formed on the enlarged diameter inner circumferential surface of the valve body guide hole 33, and a sealing edge 38 is formed at the lower end of the reverse seat mounting portion 36 by successively decreasing the diameter. In addition, a ring-shaped inverted seat 6 is formed with a male thread to be screwed into the inverted seat mounting portion 36, and the diameter of the lower end of the inverted seat 6 is sequentially reduced to form a chamfered portion 61, With this, the valve stem 5 is attached to the ring-shaped reverse seat 6.
is inserted, and the reverse seat 6 is screwed into the reverse seat mounting portion 36 to bring the chamfered portion 61 into contact with the sealing edge 38,
Furthermore, when the valve body 4 is fully opened due to the rise of the valve stem 5, a convex valve stem reverse seat 55 is formed on the valve stem 5, which comes into contact with the reverse seat surface 62 of the reverse seat 6 from below, and A valve box screw part 37 having a male thread is formed on the outer peripheral surface of the vertical valve box part 3, and a horizontal stepped part 3a integrally formed with the vertical valve box part 3 is formed on the lower edge of the valve box thread part 37. An annular part 81 is provided with a threaded part 84 formed of a female threaded part that is screwed into the male threaded part, and when the male threaded part and the female threaded part are screwed together, the lower edge of the annular part 81 is A bonnetless high-pressure globe valve characterized in that a yoke 8 is provided so as to come into contact with the horizontal step portion 3a.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1981066745U JPH0143574Y2 (en) | 1981-05-11 | 1981-05-11 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1981066745U JPH0143574Y2 (en) | 1981-05-11 | 1981-05-11 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57179656U JPS57179656U (en) | 1982-11-13 |
| JPH0143574Y2 true JPH0143574Y2 (en) | 1989-12-18 |
Family
ID=29862771
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1981066745U Expired JPH0143574Y2 (en) | 1981-05-11 | 1981-05-11 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0143574Y2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100978061B1 (en) * | 2008-06-05 | 2010-08-25 | 조광아이엘아이주식회사 | A Cryogenic Valve |
| JP5193989B2 (en) * | 2009-12-15 | 2013-05-08 | 株式会社ネリキ | Valve device |
| JP5567632B2 (en) * | 2011-11-30 | 2014-08-06 | 株式会社鷺宮製作所 | Solenoid valve and pilot solenoid valve |
| CN103133748A (en) * | 2011-11-30 | 2013-06-05 | 株式会社鹭宫制作所 | Solenoid valve and controlled solenoid valve |
-
1981
- 1981-05-11 JP JP1981066745U patent/JPH0143574Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57179656U (en) | 1982-11-13 |
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