JPH0256549B2 - - Google Patents
Info
- Publication number
- JPH0256549B2 JPH0256549B2 JP16432586A JP16432586A JPH0256549B2 JP H0256549 B2 JPH0256549 B2 JP H0256549B2 JP 16432586 A JP16432586 A JP 16432586A JP 16432586 A JP16432586 A JP 16432586A JP H0256549 B2 JPH0256549 B2 JP H0256549B2
- Authority
- JP
- Japan
- Prior art keywords
- valve
- packing
- gland packing
- bonnet
- gland
- 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
- 238000012856 packing Methods 0.000 claims description 54
- 210000004907 gland Anatomy 0.000 claims description 36
- 230000000694 effects Effects 0.000 description 8
- 239000012530 fluid Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
Landscapes
- Details Of Valves (AREA)
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は、玉形弁や仕切り弁等のように弁棒
と、該弁棒が昇降可能に貫入するボンネツトの内
壁間にグランドパツキンを挿通する構造の各種弁
類（以下、単に「グランドパツキン弁」という。）
の上記グランドパツキンの自力緊締構造に関し、
閉弁時にはハンドル等による弁押下力で、又開弁
時には弁体等にかかる内部流体圧の自緊作用によ
つて、常時グランドパツキンを適度に緊締し、内
部流体の漏洩を確実に防止し得るようにした新規
な自己緊塞式のグランドパツキン弁を提供するも
のである。[Detailed Description of the Invention] [Field of Industrial Application] This invention is a method of inserting a gland packing between a valve stem, such as a globe valve or a gate valve, and the inner wall of a bonnet through which the valve stem can move up and down. Various types of valves (hereinafter simply referred to as "grand packing valves")
Regarding the self-tightening structure of the above gland packing,
When the valve is closed, the valve is pressed down by the handle, etc., and when the valve is opened, the gland packing is properly tightened at all times by the self-tightening effect of the internal fluid pressure applied to the valve body, etc., to reliably prevent leakage of internal fluid. The present invention provides a novel self-closing gland packing valve.
従来、比較的大型の高温・高圧用グランドパツ
キン弁において、弁棒貫入部らの内部流体の漏洩
を防止する緊塞手段としてはグランドパツキン、
バツクシート等が使用されて来たが、この内、グ
ランドパツキンは一般に、弁棒を挿通したスタフ
イングボツクス内に、該弁棒を囲繞して複数個の
環状パツキンを静止状態で装着し、パツキン押
え、締付けボルト等を介して上記パツキンを緊締
圧縮することにより、内部流体の漏洩を阻止する
ようにしたものである。
Conventionally, in relatively large high-temperature/high-pressure gland packing valves, gland packing,
Although back sheets and the like have been used, the gland packing is generally a stuffing box in which the valve stem is inserted, and a plurality of annular packings are installed in a stationary state surrounding the valve stem, and a packing presser is used. By tightening and compressing the gasket using a tightening bolt or the like, leakage of the internal fluid is prevented.
而るに、上記締付けボルトによるグランドパツ
キンの締付け圧は、弁の昇降動作に拘らず常に一
定であるから、該パツキンの弾性低下等によつて
内部流体の漏洩等を生じた場合、所謂増し締め等
を施して再び緊塞状態を得る必要があつた為、該
グランドパツキン素材の老朽化が早められ、早期
い漏れを招くだけでなく、数次に亘る増し締めに
よつて硬化したグランドパツキンは、弁の分解や
該パツキンの交換に際して、その作業性を著しく
低下させるなど、種々の問題点が見られたもので
ある。 However, since the tightening pressure of the gland packing by the tightening bolt is always constant regardless of the vertical movement of the valve, if the internal fluid leaks due to a decrease in the elasticity of the packing, so-called retightening is required. Because it was necessary to re-establish the tight state by applying various methods such as the Various problems have been observed, including a significant decrease in work efficiency when disassembling the valve and replacing the gasket.
このような実情に鑑み、本発明は上述した所謂
グランドパツキン弁において、その弁体と該弁体
に係合する弁棒の下端部に環設された輪縁と、更
に弁棒に外嵌されるパツキン押え下部とがボンネ
ツトに内接して昇降自在であるように構成する一
方、上記パツキン押えにより輪縁上に装着される
グランドパツキンを弾力的に挟定可能としたこと
により、上述した問題点を悉く解決せしめたもの
である。
In view of these circumstances, the present invention provides the above-mentioned so-called gland packing valve, which includes a valve body, a ring ring provided around the lower end of the valve stem that engages with the valve body, and a ring ring that is fitted around the valve stem. The lower part of the gland packing holder is inscribed in the bonnet and can be moved up and down, while the gland packing holder attached to the rim can be elastically clamped by the packing holder, which solves the above-mentioned problem. This has completely solved the problem.
叙上構成にかゝる本発明の自己緊塞式グランド
パツキン弁は、閉弁時において下降するパツキン
押えが弁棒の輪縁間でグランドパツキンを緊締し
つゝ弁体を下降着座させ、グランドパツキンに必
要な緊塞状態を付与する一方、開弁時には弁体に
かかる内部流体圧が輪縁を介してグランドパツキ
ンを、その底部から上方に向かつて押圧し、自力
によつて常時安定した該部の緊塞状態を維持する
という格別の作用を奏するものである。
In the self-closing gland packing valve of the present invention according to the above-mentioned configuration, when the valve is closed, the packing holder that descends tightens the gland packing between the rims of the valve stem, lowers the valve body, and seats the gland. While providing the necessary tightness to the gland packing, when the valve is opened, the internal fluid pressure applied to the valve body presses the gland packing upward from its bottom via the ring edge, and the gland packing is always stabilized by its own force. It has a special effect of maintaining the occluded state of the area.
以下、本発明の構成を図面に示す一つの実施例
に従つて更に具体的に述べると、図は玉型弁への
適用例を示したものであつて、図中１は弁函、２
は弁座、３は上記弁函１に差込み溶接されたボン
ネツト、４は該ボンネツト３の外周に螺合し、後
述するプツシユ並びにスリーブ等を支承するヨー
クである。
Hereinafter, the structure of the present invention will be described in more detail according to one embodiment shown in the drawings.
3 is a valve seat, 3 is a bonnet that is inserted into and welded to the valve case 1, and 4 is a yoke that is screwed onto the outer periphery of the bonnet 3 and supports a pusher, a sleeve, etc., which will be described later.
又、５は下端に弁体６を係着し、上記ボンネツ
ト３に昇降自在に貫入する弁棒であつて、該弁棒
の下部には上記ボンネツト３の内壁に密接してス
ライド可能な輪縁７を一体的に鍔成し、該輪縁７
上のグランドパツキン８を、上記弁棒５に外嵌さ
れボンネツト３内に摺動可能に嵌着されるパツキ
ン押え９との間で挾圧・係止するようにしたもの
である。 Reference numeral 5 denotes a valve stem having a valve body 6 attached to its lower end and penetrating into the bonnet 3 so as to be able to rise and fall freely, and a ring rim that can slide closely against the inner wall of the bonnet 3 at the lower part of the valve stem. 7 is integrally formed, and the ring edge 7
The upper gland packing 8 is clamped and locked between a packing holder 9 which is fitted onto the valve stem 5 and slidably fitted into the bonnet 3.
而して、上記グランドパツキン８は、例えば複
数個の環状パツキン８ａからなり、座金８ｂ及び
上記弁棒５の上端に螺着されるバネ押え１０、皿
バネ１１等を介して上述したように、弁棒の輪縁
７とパツキン押え９によつて圧締するようにした
ものである。 The gland packing 8 is composed of, for example, a plurality of annular packings 8a, and is connected to the washer 8b, the spring retainer 10 screwed onto the upper end of the valve stem 5, the disc spring 11, etc., as described above. It is designed to be clamped by the ring edge 7 of the valve stem and the seal holder 9.
尚、上記皿バネ１１は、グランドパツキン８の
最低締付け面圧を維持すると共に、該グランドパ
ツキン８の弾性を補償するものである。 The disc spring 11 maintains the minimum tightening surface pressure of the gland packing 8 and also compensates for the elasticity of the gland packing 8.
次に１２は上記パツキン押え９の略上半部に螺
合されたスリーブであつて、ブツシユ１３を介し
て上記ヨーク４に支承され、その上端部に固定さ
れるハンドル１４を正逆に回動することにより、
該パツキン押え９と共に上記弁棒５を上下動可能
として弁を自由に開閉し得るようにしたものであ
る。 Next, reference numeral 12 denotes a sleeve screwed onto substantially the upper half of the packing presser 9, which is supported by the yoke 4 via a bush 13, and rotates a handle 14 fixed to the upper end thereof in forward and reverse directions. By doing so,
The valve stem 5 is movable up and down together with the packing holder 9, so that the valve can be opened and closed freely.
更に１５は、上記ハンドル１４を回動させる
際、パツキン押え９が上記スリーブ１２と共回り
を生じないように取付けらた係止板であつて、例
えば一端をヨーク４に固定すると共に、他端を予
めパツキン押え９中間部の軸方向に設けられた案
内溝９′に嵌入させ、パツキン押え９を無回転の
状態で一定量上下にスライド可能にしたものであ
る。 Further, reference numeral 15 denotes a locking plate that is attached to prevent the seal presser 9 from rotating together with the sleeve 12 when the handle 14 is rotated, and for example, one end is fixed to the yoke 4 and the other end is fixed to the yoke 4. is fitted in advance into a guide groove 9' provided in the axial direction at the intermediate portion of the packing presser 9, so that the packing presser 9 can be slid up and down by a certain amount without rotation.
尚、図中１６，１７はそれぞれＯリングを示
す。 In addition, 16 and 17 in the figure each indicate an O-ring.
ところで、ハンドル１４を一定方向に回動させ
て閉弁する場合、パツキン押え９が下降するに伴
つて弁棒下部の輪縁７上のグランドパツキン８を
圧縮方向に緊締しながら弁体を下降着座させ、閉
弁状態となるのであるが、このとき更にハンドル
１４を回動すると、その弁体５は弁座２に当接し
てそれ以上下降しないから、パツキン押え９のみ
が下降し、グランドパツキン８を更に圧締してボ
ンネツト３との緊塞をより増強し得るのである。 By the way, when the handle 14 is rotated in a certain direction to close the valve, the gland packing 8 on the rim 7 at the bottom of the valve stem is tightened in the compression direction as the packing presser 9 descends, and the valve body is lowered and seated. When the handle 14 is further rotated at this time, the valve body 5 comes into contact with the valve seat 2 and does not descend any further, so only the seal presser 9 is lowered and the gland seal 8 is lowered. By further tightening the bonnet 3, the tightness between the bonnet 3 and the bonnet 3 can be further strengthened.
又、弁の全開時等、ハンドル１４の操作を停止
している状態ではパツキン押え９は上方に移動し
ないから、弁６及び弁棒の輪縁７下面に作用する
内部流体圧により弁棒５のみが押し上げられ、パ
ツキン押え９内を上方に摺動して上記輪縁７とパ
ツキン押え９間で、そのグランドパツキン８は自
力で緊締され、内圧に応じた緊塞効果が得られる
ものである。 In addition, since the seal retainer 9 does not move upward when the handle 14 is not operated, such as when the valve is fully opened, only the valve stem 5 is moved by the internal fluid pressure acting on the lower surface of the valve 6 and the rim 7 of the valve stem. is pushed up and slides upward within the packing holder 9, and the gland packing 8 is tightened by itself between the ring edge 7 and the packing holder 9, and a tightening effect corresponding to the internal pressure is obtained.
以上述べたように本発明にかゝる自己緊塞式グ
ランドパツキン弁は、ハンドルの回動に従つて昇
降するパツキン押えと、弁棒下部に環設した輪縁
との間でグランドパツキンを挾定するようにした
ものであるから、弁の開又は閉の何れの場合に
も、常にグランドパツキンを一定の圧力で緊締
し、特に高に緊塞効果を齎らすという格別の効果
が期待できるものである。
As described above, the self-closing gland packing valve according to the present invention sandwiches the gland packing between the packing holder, which moves up and down as the handle rotates, and the ring ring provided at the bottom of the valve stem. Therefore, the gland packing is always tightened at a constant pressure regardless of whether the valve is opened or closed, and an exceptional effect can be expected in that it produces a particularly high tightening effect. It is something.
更に、弁体、輪縁、グランドパツキン、パツキ
ン押えが、いずれもボンネツト内壁に接して嵌挿
されたものであるから、弁の分解やグランドパツ
キンの交換にあたつては、ブツシユ及び係止板を
取り外すだけでハンドルから弁体までの全部材を
ボンネツトからそのまゝ取出すことが可能とな
り、在来の弁に比して弁の分解、組立てはもとよ
り、グランドパツキン等の交換作業が全て弁函乃
至はボンネツトの外部で行えて極めて容易となる
等、種々の離れた効果を奏するものである。 Furthermore, since the valve body, rim, gland packing, and packing retainer are all fitted in contact with the inner wall of the bonnet, when disassembling the valve or replacing the gland packing, it is necessary to remove the bushing and locking plate. By simply removing the valve, all parts from the handle to the valve body can be taken out from the bonnet, and compared to conventional valves, not only disassembling and assembling the valve, but also replacing the gland packing etc. is all done in the valve case. It has various effects, such as being extremely easy to perform outside the bonnet.
第１図は、本発明にかゝる自己緊塞式グランド
パツキン弁の中央部縦断面図である。
尚、図中５……弁棒、６……弁体、７……輪
縁、８……グランドパツキン、９……パツキン押
え、１０……バネ押え、１１……皿バネ、１２…
…スリーブ、１３……ブツシユ、１５……係止
板。
FIG. 1 is a central longitudinal sectional view of a self-closing gland packing valve according to the present invention. In addition, in the figure, 5... valve stem, 6... valve body, 7... rim, 8... gland packing, 9... packing holder, 10... spring holder, 11... disc spring, 12...
...sleeve, 13...button, 15...locking plate.
Claims (1)
するボンネツト内に、該弁棒を囲繞してグランド
パツキンを装着してなるグランドパツキン弁にお
いて、その弁体６と該弁体６に係合する弁棒５の
下端部に環設された輪縁７と、更に弁棒５に外嵌
されるパツキン押え９下部とがボンネツト３に内
接して昇降自在であるように構成する一方、上記
パツキン押え９により輪縁７上に装着されるグラ
ンドパツキン８を弾力的に挾定可能としたことを
特徴とする自己緊塞式グランドパツキン弁。1. In a gland packing valve, such as a globe valve or a gate valve, in which a gland packing is attached to surround the valve stem in a bonnet through which the valve stem can move up and down, the valve body 6 and the valve body 6 are connected to each other. A ring rim 7 provided around the lower end of the valve rod 5 to be engaged and a lower part of the packing holder 9 fitted onto the valve rod 5 are inscribed in the bonnet 3 and are movable up and down; A self-closing gland packing valve characterized in that a gland packing 8 mounted on the ring rim 7 can be elastically clamped by the packing holder 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16432586A JPS6319482A (en) | 1986-07-11 | 1986-07-11 | Self-tight fastening type gland packing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16432586A JPS6319482A (en) | 1986-07-11 | 1986-07-11 | Self-tight fastening type gland packing valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6319482A JPS6319482A (en) | 1988-01-27 |
| JPH0256549B2 true JPH0256549B2 (en) | 1990-11-30 |
Family
ID=15791016
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16432586A Granted JPS6319482A (en) | 1986-07-11 | 1986-07-11 | Self-tight fastening type gland packing valve |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6319482A (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0681992B2 (en) * | 1990-10-09 | 1994-10-19 | 岡野バルブ製造株式式会社 | Valve device |
| CN102359636A (en) * | 2011-08-25 | 2012-02-22 | 浙江欧拉姆阀门科技有限公司 | Multi-turn valve in threaded connection with support |
| CN102927303B (en) * | 2012-11-15 | 2014-09-17 | 无锡智能自控工程股份有限公司 | Adduction disc type pipeline angle valve capable of being adjusted to be opened and closed |
| CN103056823A (en) * | 2012-12-16 | 2013-04-24 | 中冶美利浆纸有限公司 | Material filling pressure gauge |
| CN103591315B (en) * | 2013-11-20 | 2016-01-20 | 无锡智能自控工程股份有限公司 | Elasticity C type ring two-seater sealing cage type regulating valve |
-
1986
- 1986-07-11 JP JP16432586A patent/JPS6319482A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6319482A (en) | 1988-01-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101910697B (en) | Control valve trim and seal | |
| US7401760B2 (en) | Vacuum regulating valve | |
| JPS6411867B2 (en) | ||
| JPH0814343B2 (en) | Invert type bellows valve | |
| JP2006194448A (en) | Valve | |
| JPS6224665B2 (en) | ||
| US4469123A (en) | Cold box valve | |
| EP0333943B1 (en) | Valve stem seal | |
| US3982729A (en) | Back-up seal for diaphragm valve | |
| US5743288A (en) | Valve having provision for replacing stem packing while the valve is under pressure | |
| JPH07269719A (en) | Valve with seal ring with periphery-welded laminate | |
| JPH0579871B2 (en) | ||
| US20120261890A1 (en) | Pressure seal | |
| JPH0143874B2 (en) | ||
| US5730419A (en) | Dual backseat valve assembly | |
| US2982590A (en) | Cylinder construction | |
| JPH0256549B2 (en) | ||
| KR101531967B1 (en) | Ball valve | |
| US4848729A (en) | Valve seal | |
| JP7458019B2 (en) | On-off valve device | |
| JPH0432541Y2 (en) | ||
| JPH0143574Y2 (en) | ||
| JPH0678669U (en) | Gate valve ground structure | |
| JP2000046205A (en) | Seat fitting structure | |
| GB2070203A (en) | A gate valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |