CN1236873A - Balanced plunger valve with scale indication - Google Patents
Balanced plunger valve with scale indication Download PDFInfo
- Publication number
- CN1236873A CN1236873A CN 98112865 CN98112865A CN1236873A CN 1236873 A CN1236873 A CN 1236873A CN 98112865 CN98112865 CN 98112865 CN 98112865 A CN98112865 A CN 98112865A CN 1236873 A CN1236873 A CN 1236873A
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- China
- Prior art keywords
- valve
- seal ring
- gland
- pressed
- scale indication
- 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.)
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- Indication Of The Valve Opening Or Closing Status (AREA)
Abstract
A balanced plunger valve with scale indication, especially an improved one, features that lower valve seat, non-metal sealing ring, pressing ring, another non-metal sealing ring and upper valve body are sequentially assembled together from bottom to top, the upper valve body, lower valve body and press cover are respectively connected to regulation screws, a non-metal sealing ring is between press cover and upper valve seat, the press cover has scale indication on it, hand mechanism is fixed to valve rod, and the valve rod has slot for slide connection with the position limiter fixed to press cover.
Description
The present invention relates to a kind of pipeline plunger valve, particularly about being with a kind of improvement of equilibrium structure Plunger Globe Valve.
In known technology, solved in pressure surge as " balance type plunger stop valve preventing internal and outernal leakage " of number of patent application 95113313.6 big, still can balance when operating mode is unstable, the balanced type Plunger Globe Valve of spry and light operation.This balance type plunger stop valve preventing internal and outernal leakage does not have scale indication, control valve aperture size more accurately, thus also can't more accurately know the flow size.Seal ring on this balanced plunger valve seat is a metal o-ring so that fuse with valve body simultaneously, but this hard sealing effect does not often have soft seal effective.
The purpose of this invention is to provide a kind of with scale indication and balanced plunger valve simple in structure, good seal performance.
The object of the present invention is achieved like this, design a kind of balanced plunger valve that comprises valve body, plunger, valve rod, nonmetal seal ring, framework, equalizing orifice, pad, gland, handwheel, Stem Mut, tightens the band scale indication of compositions such as screw, it is characterized in that: nonmetal seal ring 2 lower end surfaces are pressed on the lower valve base 12, be pressed with hurdle 4 on the upper-end surface, press on hurdle 4 the other ends and be pressed with nonmetal seal ring 6; Upper valve body 7 one ends are pressed on the nonmetal seal ring 6, and upper valve body 7 is connected with adjusting screw 17 and 16 with following valve body 1 respectively with gland 11; Be pressed with nonmetal seal ring 9 between gland 11 and the upper valve base 22, dial 20 is arranged on the gland 11, point gear 2 is fixed together with valve rod 8, has groove 24 and the snubber 15 that is fixed on the gland 11 to be slidingly connected on the valve rod.
Described nonmetal seal ring upper end can be pressed with pad.
Described gland side surface can be the effect that seal plays the protection valve rod.
The nonmetal seal ring 2 disconnected cross sections of putting on the described lower valve base are trapezoidal.
The present invention has following characteristics:
1. have dial owing on the gland, thus be connected with accurately control valve aperture size of point gear on the valve rod, and more accurately learn the flow size.
2. because seal ring adopts nonmetallic material, and the many places sealing, so the disconnected cross section of the seal ring on the lower valve base is trapezoidal good sealing effect.
3. simple in structure, easy to adjust.
4. the gland side surface can play the effect of protection valve rod for the base closed structure.
The present invention will be further described below in conjunction with embodiment's accompanying drawing.
Accompanying drawing 1 is the example structure schematic representation.
Among the figure: 1. lower valve base; 2.6.9. nonmetal seal ring; 3. plunger; 4. pressure hurdle; 5. equalizing orifice; 7. upper valve body; 8. valve rod; 10. pad; 11. gland; 12. lower valve base; 13. handwheel; 14. Stem Mut; 15. snubber; 16,17 tighten screw; 18. uuper valve chamber; 19. lower valve chamber; 20. dial; 21. point gear; 22. upper valve base; 23. counter balance pocket; 24. groove
So no matter as shown in the figure, plunger 3 connects counter balance pocket 23 by valve rod 8 and forms, and equalizing orifice 5 is arranged on the counter balance pocket 23, valve opening and when closing, the last downforce rapid operation, steady that makes in a basic balance.Tighten screw 17 active force between adjustment chamber and nonmetal seal ring 2 and the nonmetal seal ring 6 at any time, tighten the active force between nonmetal seal ring 9 of screw 16 can regulate and the valve rod 8.Handwheel 13 is connected with Stem Mut 14, when rotating handwheel, Stem Mut rotates valve rod 8 feasible and that Stem Mut is threaded togather thereupon and does or motion down, interlock counter balance pocket 23 also moved up and down thereupon and plays the effect of opening and closing when valve rod was done to move upward or down, be fixed on the gland snubber 15 along with valve rod go up or down motion with respect on valve rod is in valve rod groove or lower slider, the point gear 21 that links together with valve rod is along with stem movement indicates position on dial simultaneously.
Claims (4)
1. a balanced plunger valve that comprises valve body, plunger, valve rod, nonmetal seal ring, framework, equalizing orifice, pad, gland, handwheel, Stem Mut, tightens the band scale indication of compositions such as screw is characterized in that; Nonmetal seal ring (2) lower end surface is pressed on the lower valve base (12), is pressed with hurdle (4) on the upper-end surface, presses on hurdle (4) the other end and is pressed with nonmetal seal ring (6); Upper valve body (7) one ends are pressed on the nonmetal seal ring (6), and upper valve body (7) is connected with adjusting screw (17) and (16) respectively with following valve body (1) and gland (11); Be pressed with nonmetal seal ring (9) between gland (11) and the upper valve base (22), dial (20) is arranged on the gland (11), point gear (21) is fixed together with valve rod (8), has groove and the snubber (15) that is fixed on the gland (11) to be slidingly connected on the valve rod.
2. the balanced plunger valve of band scale indication according to claim 1, its feature also is: described nonmetal seal ring upper end can be pressed with pad.
3. the balanced plunger valve of band scale indication according to claim 1, its feature also is: described gland side surface can be the effect that seal plays the protection valve rod.
4. the balanced plunger valve of band scale indication according to claim 1, its feature also is: the disconnected cross section of the nonmetal seal ring of putting on the described lower valve base (2) can be trapezoidal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98112865 CN1236873A (en) | 1998-04-29 | 1998-04-29 | Balanced plunger valve with scale indication |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98112865 CN1236873A (en) | 1998-04-29 | 1998-04-29 | Balanced plunger valve with scale indication |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1236873A true CN1236873A (en) | 1999-12-01 |
Family
ID=5222660
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98112865 Pending CN1236873A (en) | 1998-04-29 | 1998-04-29 | Balanced plunger valve with scale indication |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1236873A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100375856C (en) * | 2004-12-28 | 2008-03-19 | 何永水 | Balance type valve of electric valve |
| CN101225882B (en) * | 2006-12-25 | 2010-06-23 | Smc株式会社 | Flow regulating valve |
| CN103075528A (en) * | 2013-01-17 | 2013-05-01 | 北京化工大学 | Low-resistance valve capable of precisely controlling flow rate |
| CN103104745A (en) * | 2012-11-14 | 2013-05-15 | 安徽铜都阀门股份有限公司 | Stroke indication device of non-rising stem gate valve |
-
1998
- 1998-04-29 CN CN 98112865 patent/CN1236873A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100375856C (en) * | 2004-12-28 | 2008-03-19 | 何永水 | Balance type valve of electric valve |
| CN101225882B (en) * | 2006-12-25 | 2010-06-23 | Smc株式会社 | Flow regulating valve |
| CN103104745A (en) * | 2012-11-14 | 2013-05-15 | 安徽铜都阀门股份有限公司 | Stroke indication device of non-rising stem gate valve |
| CN103075528A (en) * | 2013-01-17 | 2013-05-01 | 北京化工大学 | Low-resistance valve capable of precisely controlling flow rate |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| AD01 | Patent right deemed abandoned | ||
| C20 | Patent right or utility model deemed to be abandoned or is abandoned |