CN203796996U - Piston type hydraulic control valve capable of being easily opened and closed - Google Patents
Piston type hydraulic control valve capable of being easily opened and closed Download PDFInfo
- Publication number
- CN203796996U CN203796996U CN201420094279.XU CN201420094279U CN203796996U CN 203796996 U CN203796996 U CN 203796996U CN 201420094279 U CN201420094279 U CN 201420094279U CN 203796996 U CN203796996 U CN 203796996U
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- valve
- piston
- hydraulic control
- type hydraulic
- piston type
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Abstract
The utility model discloses a piston type hydraulic control valve capable of being easily opened and closed. The piston type hydraulic control valve comprises a valve body. A valve deck is arranged at the upper end of the valve body. A valve seat is arranged in the valve body and divides an inner cavity of the valve body into an upper cavity and a lower cavity. The portion, located below the valve deck, inside the valve body is provided with a cylinder sleeve. The cylinder sleeve is provided with a piston. The piston is connected with a valve rod. A spring is connected outside the valve rod. A valve disc is arranged on the valve seat. The upper end of the valve rod is connected with the piston. The lower end of the valve rod is connected with the valve disc. A seal ring is arranged between the valve disc and the base. Breakthroughs are achieved in the aspect of material selection. The piston type hydraulic control valve can be used in medium-temperature or medium-pressure or corrosive pipelines. The application range is widened. Meanwhile, the service life of the valve is prolonged, the number of maintenance times is lowered, and cost is reduced.
Description
Technical field
The utility model relates to valve technology field, is specifically related to a kind of easy keying piston type hydraulic control valve.
Background technique
Hydraulic control valve can be divided into diaphragm type and piston type two classes by structure, working principle is identical, all that above downstream pressure difference △ P is power, by pilot valve, controlled, make barrier film (piston) hydraulic type differential operation, by hydraulic automatism, regulated completely, thereby make main valve valve disc open completely or close completely or in adjustment state.When the press water in entering control room, barrier film (piston) top is discharged to atmosphere or low pressure area, downstream, the force value that acts on valve disc bottom and barrier film below is just greater than the force value of top, so main valve valve disc is shifted onto to the position of opening completely; When the press water in entering control room, barrier film (piston) top can not be discharged to atmosphere or low pressure area, downstream, the force value that acts on barrier film (piston) top is just greater than the force value of below, so main valve valve disc will be pressed onto to the position of closing completely; Force value in control room, barrier film (piston) top is in inlet pressure during with outlet pressure centre, and main valve valve disc is just in adjustment state, and its adjusted position depends on the effect that jointly controls of needle-valve in conduit system and adjustable pilot valve.Adjustable pilot valve can and open greatly or turn down the little valve port of himself by the outlet pressure in downstream with its variation, thereby changes the force value in control room, barrier film (piston) top, the adjusted position of controlling party valve valve disc.Traditional piston type hydraulic control valve application area is narrower, and the material corrosion resistance of part parts is poor.
Model utility content
Technical problem to be solved in the utility model is to provide a kind of applied range, the easy keying piston type hydraulic control valve easily opening and closing.
Technical problem to be solved in the utility model realizes by the following technical solutions:
An easy keying piston type hydraulic control valve, comprises a valve body, and described valve body upper end is provided with valve gap, in described valve body, be provided with valve seat, described valve seat is divided into epicoele and cavity of resorption by body cavity, and described valve inner is positioned at valve gap below and is provided with cylinder sleeve, and described cylinder sleeve is provided with piston, described piston is connected with valve rod, described valve rod is externally connected to spring, and described valve seat is provided with valve disc, and described valve rod upper end is connected with piston, lower end is connected with valve disc, between described valve disc and base, is provided with seal ring.
Described seal ring is made by nitrile rubber.
Described valve gap and valve body are made by carbon steel.
Described seal ring is located on valve seat by sealing plate.
Between described piston and cylinder sleeve, be provided with gasket seal.
The beneficial effects of the utility model are: the utility model has breakthrough in selection, can be used in middle temperature, middle pressure or mordant pipeline, have expanded using scope, in the working life of also having improved this valve, reduce maintenance times simultaneously, have reduced cost.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
Embodiment
For technological means, creation characteristic that the utility model is realized, reach object and effect is easy to understand, below in conjunction with concrete diagram, further set forth the utility model.
As shown in Figure 1, a kind of easy keying piston type hydraulic control valve, comprises a valve body 11, valve body 11 upper ends are provided with valve gap 1, are provided with valve seat 9 in valve body 11, and valve seat 9 is divided into epicoele and cavity of resorption by valve body 11 inner chambers, valve body 11 inside are positioned at valve gap 1 below and are provided with cylinder sleeve 2, cylinder sleeve 2 is provided with piston 3, and piston 3 is connected with valve rod 5, and valve rod 5 is externally connected to spring 6, valve seat 9 is provided with valve disc 7, valve rod 5 upper ends are connected with piston 3, and lower end is connected with valve disc 7, between valve disc 7 and base 9, are provided with seal ring 8.Seal ring 8 is made by nitrile rubber, and valve gap 1 and valve body 11 are made by carbon steel, and seal ring 8 is located on valve seat 9 by sealing plate 10, between piston 3 and cylinder sleeve 2, is provided with gasket seal 4.
More than show and described basic principle of the present utility model and major character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; that in above-described embodiment and specification, describes just illustrates principle of the present utility model; do not departing under the prerequisite of the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (5)
1. one kind easily opens and closes piston type hydraulic control valve, comprise a valve body, described valve body upper end is provided with valve gap, in described valve body, be provided with valve seat, described valve seat is divided into epicoele and cavity of resorption by body cavity, it is characterized in that: described valve inner is positioned at valve gap below and is provided with cylinder sleeve, described cylinder sleeve is provided with piston, described piston is connected with valve rod, described valve rod is externally connected to spring, and described valve seat is provided with valve disc, and described valve rod upper end is connected with piston, lower end is connected with valve disc, between described valve disc and base, is provided with seal ring.
2. a kind of easy keying piston type hydraulic control valve according to claim 1, is characterized in that: described seal ring is made by nitrile rubber.
3. a kind of easy keying piston type hydraulic control valve according to claim 1, is characterized in that: described valve gap and valve body are made by carbon steel.
4. a kind of easy keying piston type hydraulic control valve according to claim 1, is characterized in that: described seal ring is located on valve seat by sealing plate.
5. a kind of easy keying piston type hydraulic control valve according to claim 1, is characterized in that: between described piston and cylinder sleeve, be provided with gasket seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420094279.XU CN203796996U (en) | 2014-03-03 | 2014-03-03 | Piston type hydraulic control valve capable of being easily opened and closed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420094279.XU CN203796996U (en) | 2014-03-03 | 2014-03-03 | Piston type hydraulic control valve capable of being easily opened and closed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203796996U true CN203796996U (en) | 2014-08-27 |
Family
ID=51379208
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420094279.XU Expired - Fee Related CN203796996U (en) | 2014-03-03 | 2014-03-03 | Piston type hydraulic control valve capable of being easily opened and closed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203796996U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104763830A (en) * | 2015-05-06 | 2015-07-08 | 江苏融通阀门机械有限公司 | Piston type hydraulic control valve |
-
2014
- 2014-03-03 CN CN201420094279.XU patent/CN203796996U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104763830A (en) * | 2015-05-06 | 2015-07-08 | 江苏融通阀门机械有限公司 | Piston type hydraulic control valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140827 Termination date: 20150303 |
|
| EXPY | Termination of patent right or utility model |