JPS6357671B2 - - Google Patents
Info
- Publication number
- JPS6357671B2 JPS6357671B2 JP6943681A JP6943681A JPS6357671B2 JP S6357671 B2 JPS6357671 B2 JP S6357671B2 JP 6943681 A JP6943681 A JP 6943681A JP 6943681 A JP6943681 A JP 6943681A JP S6357671 B2 JPS6357671 B2 JP S6357671B2
- Authority
- JP
- Japan
- Prior art keywords
- valve
- intermediate inlet
- guide hole
- valve body
- inlet
- 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
- 239000012530 fluid Substances 0.000 claims description 31
- 238000007789 sealing Methods 0.000 claims description 13
- 230000002093 peripheral effect Effects 0.000 claims description 9
- 230000007423 decrease Effects 0.000 claims description 2
- 210000004907 gland Anatomy 0.000 description 6
- 238000012856 packing Methods 0.000 description 5
- 239000002184 metal Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K41/00—Spindle sealings
- F16K41/02—Spindle sealings with stuffing-box ; Sealing rings
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Details Of Valves (AREA)
- Lift Valve (AREA)
Description
【発明の詳細な説明】
この発明は高圧流体を遮断又は制御する場合に
使用する弁に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a valve used to shut off or control high pressure fluid.
従来迄も高圧流体用の弁は、石油精製装置や石
油化学装置等の多方面に使用されて来た。これら
の高圧流体用の弁を、いわゆる弁箱とフタ（ボン
ネツト）の結合形成により大別すると第１図およ
び第２図に示される弁に代表される。第１図に示
される弁は最も一般的でよく知られている弁であ
る。図中１は弁箱であり２がフタ（ボンネツト）
である。弁箱１とフタ２は弁箱１の上端部に形成
されている弁箱フランジ１１の上面と、フタ２の
下縁部に形成されているフタフランジ２１の下面
とでガスケツト３を挾接するとともに複数本のフ
タボルト２２で螺子嵌結接され、弁箱フランジ１
１とガスケツト３の当接面並びにフタフランジ２
１とガスケツト３との接触面から高圧流体が漏洩
しないように形成されている。この形式の弁で
は、弁箱１とフタ２の結接に厚い弁箱フランジ１
１とフタフランジ２１が必要であり、強力なフタ
ボルト２２が要求され、必然的に弁の呼びの大き
さに比較して形状が大形となり、単体重量が重く
なり過ぎる欠点がある。しかも弁の使用中にガス
ケツト３の弁箱フランジ１１或はフタフランジ２
１との接触面から高圧流体の漏洩があると、決定
的な解決策が無い問題点を内在している。 Until now, valves for high-pressure fluids have been used in a wide variety of applications, such as oil refineries and petrochemical equipment. These valves for high-pressure fluids can be broadly classified into the valves shown in FIGS. 1 and 2 based on the connection between the valve box and the lid (bonnet). The valve shown in Figure 1 is the most common and well known valve. In the figure, 1 is the valve box and 2 is the lid (bonnet).
It is. The valve body 1 and the lid 2 sandwich the gasket 3 between the upper surface of the valve body flange 11 formed at the upper end of the valve body 1 and the lower surface of the lid flange 21 formed at the lower edge of the lid 2. A plurality of lid bolts 22 are screw-fitted to connect the valve body flange 1.
1 and gasket 3 contact surface and lid flange 2
The gasket 1 is formed to prevent high pressure fluid from leaking from the contact surface between the gasket 1 and the gasket 3. In this type of valve, a thick valve body flange 1 is used to connect the valve body 1 and the lid 2.
1 and a lid flange 21, a strong lid bolt 22 is required, and the valve inevitably has a large shape compared to the nominal size of the valve, and the unit weight is too heavy. Moreover, while the valve is in use, the valve body flange 11 or the lid flange 2 of the gasket 3
If there is a leakage of high pressure fluid from the contact surface with 1, there is an inherent problem for which there is no definitive solution.
また第２図に示される弁は、第１図に示されて
いる弁の弁箱フランジ１１、フタフランジ２１お
よびフタボルト２２を取り除いて弁の重量の軽減
化を図るように工夫されたものである。図中１ａ
は弁箱であり、２ａがフタ（ボンネツト）であ
る。３ａは金属製のシールリングで、第１図に示
されている弁のガスケツト３に相当する。フタ２
ａは、弁箱１ａの上端面に開口し縦軸線と同心に
穿設されている弁体案内孔３１ａに挿嵌され、金
属製のシールリング３ａを介して、弁体案内孔３
１ａの上縁部に螺設されている螺子部３２ａと螺
嵌するヨーク４の突出縁端部４１によつて弁箱１
ａに結接される。しかして、弁箱１ａの弁体案内
孔３１ａの周面とフタ２ａとの気密性は、ヨーク
４締付力と、フタ２ａ自体をヨーク４締付けるこ
とに依つて生ずるフタ２ａとシールリング３ａの
接触面と、シールリング３ａの側面と接する弁体
案内孔３１ａの周面との相互圧力によつて保持さ
れるように形成されている。この形式の弁では、
弁箱フランジ１１およびフタフランジ２１を持た
ない分だけ弁の重量は軽減されるが、フタ２ａを
高圧流体の圧力に抗して弁箱１ａに結接するた
め、弁体案内孔３１ａの内部でのシールリング３
ａの挿嵌に高度の技術を必要とし、さらに、フタ
２ａの結接後にシールリング３ａの接触面からの
漏洩が起ると、決定的な解決策が無い問題点があ
る。 The valve shown in FIG. 2 is designed to reduce the weight of the valve by removing the valve body flange 11, lid flange 21, and lid bolt 22 of the valve shown in FIG. . 1a in the figure
is a valve box, and 2a is a lid (bonnet). 3a is a metal seal ring, which corresponds to the valve gasket 3 shown in FIG. Lid 2
a is inserted into a valve body guide hole 31a that is opened on the upper end surface of the valve body 1a and is bored concentrically with the vertical axis, and is inserted into the valve body guide hole 31a through a metal seal ring 3a.
Valve body 1
connected to a. Therefore, the airtightness between the circumferential surface of the valve body guide hole 31a of the valve body 1a and the lid 2a is achieved by the tightening force of the yoke 4 and the tightening of the lid 2a itself by the yoke 4. It is formed so as to be held by mutual pressure between the contact surface and the circumferential surface of the valve body guide hole 31a that is in contact with the side surface of the seal ring 3a. In this type of valve,
The weight of the valve is reduced due to the absence of the valve body flange 11 and lid flange 21, but since the lid 2a is connected to the valve body 1a against the pressure of high-pressure fluid, the inside of the valve body guide hole 31a is reduced. Seal ring 3
Inserting the seal ring 3a requires a high degree of skill, and furthermore, if leakage occurs from the contact surface of the seal ring 3a after the lid 2a is connected, there is a problem for which there is no definitive solution.
この発明は、これらの欠点や、問題点を解決し
た、第１図に示される弁のフタ２や、或は、第２
図に示される弁のフタ２ａを取除き、ガスケツト
３やシールリング３ａの接触面からの高圧流体の
漏洩を全く無くすると同時に、弁箱、ヨーク並び
に弁棒に掛かる負荷を少なくするように形成し
て、弁重量を軽減したボンネツトレスバルブを提
供することを目的とするものである。 The present invention solves these drawbacks and problems by providing a valve lid 2 shown in FIG.
The lid 2a of the valve shown in the figure is removed to eliminate any leakage of high-pressure fluid from the contact surfaces of the gasket 3 and seal ring 3a, and at the same time to reduce the load on the valve body, yoke, and valve stem. Therefore, it is an object of the present invention to provide a bonnetless valve with reduced valve weight.
この発明を第３図に示す一実施例に基づいて詳
細に説明する。 This invention will be explained in detail based on an embodiment shown in FIG.
第３図は、この発明に係るボンネツトレスに形
成した外ネジ式の玉形弁の一部を断面とした説明
図である。図中１００は弁箱である。弁箱１００
は円形断面形状を有し外形形状を逆Ｔ字形形状に
鋼材を一体に型打鍛造して形成してなり、横軸上
の弁箱端面に開口する入口１０１と出口１０２お
よび入口１０１と出口１０２を連通する流体導孔
１０３を設けて形成するとともに、縦軸上の弁箱
上端面に開口し、横軸上の流体導口１０３を連通
する円形形状の弁体案内孔１０４を設けて形成す
る。つまり、弁箱１００は横方向に長く形成した
水平部と、該水平部の端間中央部に、水平部の軸
線と直交する方向に長く形成した垂直部を設けて
形成し、水平部における入口１０１と流体導孔１
０３並びに出口１０２と流体導孔１０３を各々、
径をやや小さく形成した中間入口１０１ａ、中間
出口１０２ａを連接して形成すると共に、断面直
径を漸減するように形成したテーパー部１０３ａ
を設けて流体導孔１０３と連接し、流体抵抗を減
少すると共に弁箱１００の重量を軽減するように
形成する。また、垂直部の軸線と同心に、流体導
孔１０３と同径の垂直導孔１０４ａを形成すると
共に、垂直導孔１０４ａの上端に連接して径をや
や大きく形成した前記弁体案内孔１０４を形成
し、垂直導孔１０４ａと弁体案内孔１０４の連接
縁に截頭円錐側面状のテーパー面を設けた弁座面
１０４ｂを形成し、入口１０１と連通する流体導
孔１０３と垂直導孔１０４ａを連接すると共に、
出口１０２と連通する流体導孔１０３を弁体案内
孔１０４の周壁に開口するように形成し、弁座面
１０４ｂで流体導孔１０３を仕切るように形成す
る。さらに弁体案内孔１０４の開口端部には、径
を大きく形成したパツキンの封嵌孔１０５と該パ
ツキンの封嵌孔１０５の下端部には、該封嵌孔１
０５よりやや径を小さく、かつ、弁体案内孔１０
４よりやや径を大きく形成し、内周壁に左ネジを
設けた螺子部を形成した逆座取付部１０６を設け
る。また逆座取付部１０６と弁体案内孔１０４の
連接周縁は細巾に面取りした封塞縁１０７に形成
する。一方弁箱１００のパツキンの封嵌孔１０５
に相当する位置の外周壁部には後述するヨーク６
００と螺子嵌する螺子部１０８を設けて形成す
る。２００は高圧流体を遮断若しくは制御する弁
体である。３００は弁棒で下端部に弁体２００を
係止すると共に、上端部の右ネジに形成した螺子
部３１０を、ヨーク６００のボス部６１０に螺着
されているスリーブ６２０と螺子嵌させハンドル
９００の操作により、弁箱１００の弁体案内孔１
０４内で弁体２００を上下に揺動させるように形
成する。つまりハンドル９００の右方向の回転操
作で弁体２００が下がり、左方向の回転操作で上
がるように形成する。この場合弁体２００は、弁
箱１００の弁体案内孔１０４とわずかに遊嵌する
外周面を有する弁本体と弁本体の下端面から突出
する截頭円錐状の弁体弁座を設けて形成し、弁体
弁座を弁箱１００の弁座面１０４ｂに当接させて
流体を封塞するように形成する。また弁座面１０
４ｂと弁体２００の弁体弁座の中心角はわずかな
角度差を設けて弁体弁座の中心角を小さく形成す
ることが望ましい。４００は逆座で、弁箱１００
の逆座取付部１０６に螺着固定される。 FIG. 3 is an explanatory diagram showing a part of an externally threaded globe valve formed on a bonnet tress according to the present invention in cross section. In the figure, 100 is a valve box. Bento box 100
is formed by integrally die-forging a steel material with a circular cross-sectional shape and an inverted T-shaped external shape, and has an inlet 101 and an outlet 102 that open at the end face of the valve box on the horizontal axis, and an inlet 101 and an outlet 102 It is formed by providing a fluid guide hole 103 that communicates with the valve body, and a circular valve body guide hole 104 that opens at the upper end surface of the valve box on the vertical axis and communicates with the fluid guide port 103 on the horizontal axis. . That is, the valve box 100 is formed by providing a horizontal part that is long in the lateral direction, and a vertical part that is long in the direction orthogonal to the axis of the horizontal part in the center between the ends of the horizontal part. 101 and fluid guide hole 1
03, the outlet 102 and the fluid guide hole 103, respectively.
A tapered part 103a is formed by connecting an intermediate inlet 101a and an intermediate outlet 102a, each having a slightly smaller diameter, and gradually decreasing the cross-sectional diameter.
is provided and connected to the fluid guide hole 103 to reduce fluid resistance and reduce the weight of the valve body 100. Further, a vertical guide hole 104a having the same diameter as the fluid guide hole 103 is formed concentrically with the axis of the vertical portion, and the valve body guide hole 104 is connected to the upper end of the vertical guide hole 104a and has a slightly larger diameter. A valve seat surface 104b is formed with a tapered surface in the shape of a truncated conical side surface at the connecting edge of the vertical guide hole 104a and the valve body guide hole 104, and the fluid guide hole 103 and the vertical guide hole 104a communicate with the inlet 101. Along with concatenating
A fluid guide hole 103 communicating with the outlet 102 is formed to open in the peripheral wall of the valve body guide hole 104, and the fluid guide hole 103 is partitioned off by the valve seat surface 104b. Further, at the open end of the valve body guide hole 104, a sealing hole 105 of a packing formed with a large diameter is formed, and at a lower end of the sealing hole 105 of the packing, the sealing hole 105 is formed to have a large diameter.
The diameter is slightly smaller than 05, and the valve body guide hole 10
An inverted seat mounting part 106 is formed with a diameter slightly larger than that of 4 and has a left-handed screw part formed on the inner circumferential wall. Further, the connecting periphery of the reverse seat mounting portion 106 and the valve body guide hole 104 is formed into a narrowly chamfered sealing edge 107. On the other hand, the sealing hole 105 of the gasket of the valve box 100
A yoke 6, which will be described later, is attached to the outer peripheral wall at a position corresponding to
00 and is formed by providing a threaded portion 108 that is threadedly engaged with the threaded portion 108. 200 is a valve body that shuts off or controls high pressure fluid. 300 is a valve stem that locks the valve body 200 at the lower end, and a threaded part 310 formed in the right-hand thread at the upper end is screwed into the sleeve 620 screwed onto the boss part 610 of the yoke 600 to form the handle 900. By the operation, the valve body guide hole 1 of the valve body 100 is opened.
04 so that the valve body 200 can swing up and down. In other words, the valve body 200 is formed to be lowered when the handle 900 is rotated to the right, and raised when the handle 900 is rotated to the left. In this case, the valve body 200 is formed by providing a valve body having an outer peripheral surface that slightly loosely fits into the valve body guide hole 104 of the valve body 100, and a truncated conical valve seat protruding from the lower end surface of the valve body. The valve body valve seat is formed so as to come into contact with the valve seat surface 104b of the valve box 100 to seal off fluid. Also, the valve seat surface 10
4b and the center angle of the valve seat of the valve body 200, it is desirable to provide a slight angular difference between the center angles of the valve body and the valve seat of the valve body 200, so that the center angle of the valve body valve seat of the valve body 200 is formed small. 400 is reverse seated, valve box 100
It is screwed and fixed to the reverse seat mounting part 106 of the.
逆座４００はリング状に形成し、外周面に左ネ
ジを設けて形成し、外周下端縁を截頭円錐状に形
成して締切面４１０を設けると共に内周面下端縁
を面取りして逆座面４２０を形成する。つまり、
逆座４００の外周面に形成するネジと逆座４００
がネジ込まれる弁箱１００の逆座取付部１０６の
ネジは弁棒３００の螺子部３１０のネジとは相互
に逆方向に形成する。また内周面は弁棒３００と
わずかに遊嵌する径に形成する。また弁棒３００
のボタンヘツド状の頭端部３３０とわずかに隔接
して形成した鍔状部の周縁をテーパー状に面取り
して形成した弁棒逆座３２０を逆座面４２０に当
接させて、パツキン封嵌孔１０５への流体の侵入
を防ぐように形成する。５００はパツキンでパツ
キンの封嵌孔１０５に充填され、弁棒３００と弁
箱１００の空間部からの高圧流体の漏洩を防止す
る。６００はヨークである。第１図および第２図
に示した形式の弁では、フタ２またはフタ２ａに
固定されているものである。この実施例では、ヨ
ーク６００の環状部６３０の内周面の内ネジ部６
６０を、弁箱１００の螺子部１０８に螺子嵌さ
せ、結接後一部を点熔接して固定するように形成
する。この場合、弁箱１００の螺子部１０８の長
さを環状部６３０の内ネジ部６６０の長さと同一
に形成し、内ネジ部６６０の下端縁が螺子部１０
８の下端縁に当接して固定するように形成する。
一方環状部６３０の対向する外側面に突出した腕
部６４０に係止した二本のグランドボルト７００
と、該グランドボルト７００に係合し、グランド
ナツト７１０で調整されるグランドフランジ８０
０を設け、該グランドフランジ８００で押圧され
るグランド６５０を、弁箱１００のパツキンの封
嵌孔１０５に遊嵌させ、パツキン５００に適当な
気密圧を誘起させ、高圧流体の漏洩を封ずるよう
に形成する。 The reverse seat 400 is formed into a ring shape, with a left-handed thread on the outer peripheral surface, and the lower edge of the outer periphery is formed into a truncated conical shape to provide a closing surface 410, and the lower edge of the inner peripheral surface is chamfered to form the reverse seat. A surface 420 is formed. In other words,
Screws formed on the outer peripheral surface of the reverse seat 400 and the reverse seat 400
The threads of the inverted mounting portion 106 of the valve box 100 into which the valve body 100 is screwed are formed in opposite directions to the threads of the threaded portion 310 of the valve stem 300. Further, the inner circumferential surface is formed to have a diameter that allows a slight loose fit to the valve stem 300. Also valve stem 300
The valve stem inverted seat 320, which is formed by chamfering the peripheral edge of a flange-shaped part slightly apart from the button head-shaped head end 330 in a tapered shape, is brought into contact with the inverted seat surface 420, and the seal fitting hole is opened. Formed to prevent fluid from entering 105. 500 is a gasket, and the sealing hole 105 of the gasket is filled to prevent leakage of high pressure fluid from the space between the valve stem 300 and the valve box 100. 600 is a yoke. The valve of the type shown in FIGS. 1 and 2 is fixed to the lid 2 or the lid 2a. In this embodiment, the internal threaded portion 6 on the inner peripheral surface of the annular portion 630 of the yoke 600 is
60 is screwed into the threaded portion 108 of the valve box 100, and after connection, a portion is spot welded and fixed. In this case, the length of the threaded portion 108 of the valve body 100 is formed to be the same as the length of the internal threaded portion 660 of the annular portion 630, and the lower end edge of the internal threaded portion 660 is
8 and fixed thereto.
Two ground bolts 700 are engaged with arm portions 640 that protrude from the opposing outer surfaces of the annular portion 630.
and a gland flange 80 that engages with the gland bolt 700 and is adjusted with a gland nut 710.
0, and the gland 650 pressed by the gland flange 800 is loosely fitted into the sealing hole 105 of the packing of the valve box 100, so as to induce an appropriate airtight pressure in the packing 500 and seal the leakage of high-pressure fluid. to form.
この発明は図示の実施例に基づいて特許請求の
範囲のように構成したので、従来例の弁に見られ
るような、弁箱フランジ、フタフランジが不要と
なり弁全体を極めて軽量コンパクトにすることが
できた。また、ガスケツトを持たないので、この
部分からの流体の漏洩は全くなく、グランド部か
らの漏洩は配管された後でも容易に封ずることが
できるので、高圧流体の外部漏洩の対策を容易に
し、また弁全開時の弁棒に加わるピストン力は逆
座に受けているので弁棒に加わる力は無く弁操作
の容易なボンネツトレスバルブを提供することが
できた。また、逆座は左ネジを設けて形成してあ
るので、弁棒逆座と逆座面との接解面では、弁体
を開放しようとすれば、逆座を螺着しようとする
力が作用するので、逆座からのもれがなく、同時
に逆座固定のための螺子長さを短く形成し得るの
で、弁箱長を短く、軽量に形成することが可能と
なる。 Since this invention is constructed as claimed in the claims based on the illustrated embodiment, the valve body flange and lid flange, which are found in conventional valves, are unnecessary, and the entire valve can be made extremely lightweight and compact. did it. In addition, since it does not have a gasket, there is no leakage of fluid from this part, and leakage from the gland can be easily sealed even after piping has been installed, making it easy to prevent external leakage of high-pressure fluid. Furthermore, since the piston force applied to the valve stem when the valve is fully open is received by the reverse seat, no force is applied to the valve stem, making it possible to provide a bonnetless valve that is easy to operate. In addition, since the reverse seat is formed with a left-hand thread, when the valve stem is in contact with the reverse seat and the valve stem is in contact with the reverse seat, when an attempt is made to open the valve body, the force that tries to screw the reverse seat is generated. Therefore, there is no leakage from the reverse seat, and at the same time, the length of the screw for fixing the reverse seat can be shortened, so that the valve body length can be shortened and the valve body can be made lightweight.
また、水平部の流体導孔と入口および出口の接
続は、テーパー部を設けて、流路面積を漸減又は
漸増するように形成しているので、弁箱重量を軽
減し得ると同時に、流体低抗が小さく、使用中に
弁が振動することが少ないので、構成部品の結合
部の負荷や各部の負荷が小さく、弁全体を軽量、
コンパクトに形成し得る利点を併合する。 In addition, the connection between the fluid guide hole in the horizontal part and the inlet and outlet is formed with a tapered part so that the flow path area gradually decreases or gradually increases, which reduces the weight of the valve box and reduces the fluid flow. Since the resistance is small and the valve does not vibrate during use, the load on the joints of component parts and on each part is small, making the entire valve lighter and lighter.
Combines the advantages of compact construction.
第１図は一の従来例を示す一部を断面とした正
面図、第２図は他の従来例を示す一部を断面とし
た正面図、第３図は本願発明の一実施例を示す一
部を断面とした正面図である。
符号の説明、１００……弁箱、１０１……入
口、１０２……出口、１０３……流体導口、１０
１ａ……中間入口、１０２ａ……中間出口、１０
３ａ……テーパー部、１０４ａ……垂直導孔、１
０４ｂ……弁座面、１０５……パツキンの封嵌
孔、１０６……逆座取付部、３００……弁棒、３
２０……弁棒逆座、４００……逆座、４２０……
逆座面。
FIG. 1 is a partially sectional front view showing one conventional example, FIG. 2 is a partially sectional front view showing another conventional example, and FIG. 3 is a partially sectional front view showing an embodiment of the present invention. It is a front view with a part cut away. Explanation of symbols, 100...Valve box, 101...Inlet, 102...Outlet, 103...Fluid inlet, 10
1a...Intermediate entrance, 102a...Intermediate exit, 10
3a...Tapered part, 104a...Vertical guide hole, 1
04b...Valve seat surface, 105...Packing sealing hole, 106...Reverse seat mounting part, 300...Valve stem, 3
20... Valve stem inverted, 400... Inverted, 420...
Reverse seat.
Claims (1)
断面形状を有する水平部と該水平部の端間中央
に、水平部の軸線と直交する方向に長く形成し
た、円形断面形状を有する垂直部を逆Ｔ字形状に
一体に形成して設け、水平部の軸線上に開口する
入口１０１と出口１０２を形成すると共に、該入
口１０１並びに出口１０２に連接して径を小さく
形成した中間入口１０１ａ並びに中間出口１０２
ａを形成し、中間入口１０１ａ並びに中間出口１
０２ａに断面直径を漸減するテーパー部１０３ａ
を連接して流体導孔１０３に接続し、入口１０１
に連通する流体導孔１０３を、垂直部の軸線上に
形成した垂直導孔１０４ａに連通し、該垂直導孔
１０４ａと連接して径を大きく形成した弁体案内
孔１０４を形成すると共に、該弁体案内孔１０４
の下端側周面に出口１０２に連通する流体導孔１
０３を開口して形成し、垂直導孔１０４ａと弁体
案内孔１０４の連接面に截頭円錐側面状の弁座面
１０４ｂを設けて形成し、前記弁体案内孔１０４
の上端縁に連接して、同心にやや径を大きく形成
し、円周面に左ネジを設けて形成した逆座取付部
１０６と該逆座取付部１０６と弁体案内孔１０４
の連接周縁に細巾に面取りして形成した封塞縁１
０７を設けて形成し、逆座取付部１０６の上端に
連接して同心にやや径を大きく形成したパツキン
の封嵌孔１０５を垂直部の上端面に開口して設け
ると共に、該パツキン封嵌孔１０５に相当する位
置の外周壁部に、ヨーク６００の環状部６３０に
おける内ネジ部６６０と螺合してヨーク６００を
固定する螺子部１０８を設けて形成した弁箱１０
０と、逆座取付部１０６に螺着する、リング状に
形成した外周面に弁棒３００に形成したネジと逆
方向の左ネジ部を形成すると共に、外周面下端縁
を截頭円錐側面状に形成した締切面４１０を形成
し、弁棒３００を遊嵌状に挿嵌するリング状の内
周面の下端縁を面取りして形成した逆座面４２０
を設け、締切面４１０を封塞縁１０７に当接させ
て螺着固定すると共に、弁棒３００の弁棒逆座３
２０を逆座面４２０に当接させパツキン封嵌孔１
０５への流体洩れを防止するように形成した逆座
４００とを設け、弁棒３００の下端部に係合した
弁体２００を、弁棒３００の上下動によつて、弁
体２００の先端部周側面を弁箱１００の弁座面１
０４ｂに当接または開放して流体を封塞または流
通するように形成したことを特徴とするボンネツ
トレスバルブ。1. In an externally threaded valve, there is a long horizontal part with a circular cross-section and a vertical part with a circular cross-section, which is long in the direction perpendicular to the axis of the horizontal part, in the center between the ends of the horizontal part. An inlet 101 and an outlet 102 that are integrally formed in an inverted T shape and open on the axis of the horizontal part are formed, and an intermediate inlet 101a and an intermediate inlet 101a and an intermediate inlet 101a and an intermediate inlet 101a and an intermediate inlet 101a and an intermediate inlet 101a and an intermediate inlet 101a and an intermediate inlet 101a and an intermediate inlet 101a and an intermediate inlet 101a and an intermediate inlet 101a and an intermediate inlet 101a and an intermediate inlet 101a and an intermediate inlet 101a and an intermediate inlet 101a and an intermediate inlet 101 and an outlet 102 formed integrally in an inverted T-shape and opening on the axis of the horizontal portion are formed, and are connected to the inlet 101 and the outlet 102 and are formed with a small diameter. Exit 102
a, intermediate inlet 101a and intermediate outlet 1
Tapered portion 103a whose cross-sectional diameter gradually decreases to 02a
are connected to the fluid introduction hole 103, and the inlet 101
A fluid guide hole 103 communicating with the vertical part is connected to a vertical guide hole 104a formed on the axis of the vertical part, and a valve body guide hole 104 with a large diameter is formed in connection with the vertical guide hole 104a. Valve body guide hole 104
Fluid guide hole 1 communicating with outlet 102 on the lower end side circumferential surface of
03 is opened, and a valve seat surface 104b having a truncated conical side surface is provided on the connecting surface of the vertical guide hole 104a and the valve body guide hole 104.
A reverse seat mounting portion 106 is connected to the upper edge, concentrically formed with a slightly larger diameter, and has a left-hand thread on the circumferential surface, and the reverse seat mounting portion 106 and the valve body guide hole 104.
Sealing edge 1 formed by narrowly chamfering the connecting periphery of
07, and a gasket sealing hole 105 concentrically formed with a slightly larger diameter and connected to the upper end of the reverse mounting portion 106 is provided to open on the upper end surface of the vertical portion, and the gasket sealing hole 105 is formed by opening at the upper end surface of the vertical portion. The valve box 10 is formed by providing a threaded portion 108 on the outer circumferential wall portion at a position corresponding to 105, which screws into the internal threaded portion 660 of the annular portion 630 of the yoke 600 to fix the yoke 600.
0, a left-handed thread in the opposite direction to the thread formed on the valve stem 300 is formed on the ring-shaped outer circumferential surface that is screwed onto the reverse seat mounting portion 106, and the lower edge of the outer circumferential surface is shaped like a truncated conical side surface. A reverse seat surface 420 is formed by chamfering the lower edge of a ring-shaped inner peripheral surface into which the valve stem 300 is loosely inserted.
The closing surface 410 is brought into contact with the sealing edge 107 and fixed by screwing, and the valve stem reverse seat 3 of the valve stem 300 is provided.
20 to the reverse seat surface 420 and seal the sealing hole 1.
05 is provided, and the valve body 200 engaged with the lower end of the valve stem 300 is moved upwardly and downwardly so that the distal end of the valve body 200 is moved upwardly and downwardly. The circumferential side is the valve seat surface 1 of the valve box 100.
1. A bonnetless valve characterized in that it is formed so as to abut or open to 04b to seal off or allow fluid to flow.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6943681A JPS57184766A (en) | 1981-05-11 | 1981-05-11 | Bonnetless valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6943681A JPS57184766A (en) | 1981-05-11 | 1981-05-11 | Bonnetless valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57184766A JPS57184766A (en) | 1982-11-13 |
| JPS6357671B2 true JPS6357671B2 (en) | 1988-11-11 |
Family
ID=13402579
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6943681A Granted JPS57184766A (en) | 1981-05-11 | 1981-05-11 | Bonnetless valve |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57184766A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015526678A (en) * | 2012-08-30 | 2015-09-10 | フィッシャー コントロールズ インターナショナル リミテッド ライアビリティー カンパニー | Valve body with improved downflow cavity |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100995153B1 (en) * | 2009-11-19 | 2010-11-18 | 주식회사 삼신 | Quick maintenance glove valve |
| CN103615552A (en) * | 2013-11-11 | 2014-03-05 | 锦州高中压阀门制造有限公司 | Direct-opening multi-seal angle stop valve |
-
1981
- 1981-05-11 JP JP6943681A patent/JPS57184766A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015526678A (en) * | 2012-08-30 | 2015-09-10 | フィッシャー コントロールズ インターナショナル リミテッド ライアビリティー カンパニー | Valve body with improved downflow cavity |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57184766A (en) | 1982-11-13 |
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