CN204344933U - High pressure needle valve - Google Patents
High pressure needle valve Download PDFInfo
- Publication number
- CN204344933U CN204344933U CN201420442362.1U CN201420442362U CN204344933U CN 204344933 U CN204344933 U CN 204344933U CN 201420442362 U CN201420442362 U CN 201420442362U CN 204344933 U CN204344933 U CN 204344933U
- Authority
- CN
- China
- Prior art keywords
- valve
- filler
- high pressure
- valve rod
- utility
- 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 - Fee Related
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- Lift Valve (AREA)
Abstract
The utility model high pressure needle valve belongs to technical field of valve manufacturing.Described high pressure needle valve comprises: valve body, Packing seat, filler, retainer nut, spring washer, hexagon socket cap head screw, valve pocket, handle, nut, valve rod pad, Cock screw, valve rod, filler bolt, packing press ring, screw thread gland, gland bolt.The material of the valve body in the utility model is 316 stainless steel forgings, and valve rod material is 17-4PH, ensures intensity and the hardness of valve; The material of filler is polytetrafluoroethylglass glass fiber (RPTFE), ensures the reliability of valve seal and the self lubricity of friction, and valve rod is the reliability that non-rotating lifting design improves valve seal.Valve body in the utility model is equipped with security leak mouth between each connection mouth and sealing surface, conveniently finds leakage point, increase safety coefficient.The utility model improves traditional structural design, enhances the voltage endurance capability of valve, improves the use pressure of needle-valve.
Description
Technical field
The utility model belongs to technical field of valve manufacturing.
Background technique
Needle-valve is that open-shut device (valve point) is driven by valve rod, and makes the valve of elevating movement around valve rod axis.The advantages such as it is little that needle-valve has fluid resistance, and structure is simple, compact, and sealing is reliable, and Operation and Maintenance is convenient, applied widely.Especially instrument needle-valve, because its structure is simple, sealing is reliable and be widely used in the industries such as machinery, chemical industry, oil.
The sealing of needle-valve relies on valve point to closely cooperate with the conical surface of valve body, and closely cooperating between filler and valve rod, valve body reaches.Traditional needle-valve use pressure is at normal temperatures 6000PSI, the highlyest also can only reach 10000PSI, is difficult to reach higher use pressure.
Model utility content
The utility model is for solving the problems of the technologies described above and providing a kind of structure simple, easy to operate and the high pressure needle valve that cost of production is lower.
For achieving the above object, technical solution adopted in the utility model is as follows:
Described high pressure needle valve comprises: valve body, Packing seat, filler, retainer nut, spring washer, hexagon socket cap head screw, valve pocket, handle, nut, valve rod pad, Cock screw, valve rod, filler bolt, packing press ring, screw thread gland, gland bolt.Valve body material is forging 316, and valve rod material is 17-4PH, and filler material is polytetrafluoroethylglass glass fiber.
Described high pressure needle valve valve rod is non-rotating lifting design, prevents the wearing and tearing of valve point; The seal form of metal to metal has good sealing effect, extends the working life of needle-valve, guarantees the serviceability of cycling switch; Filler uses polytetrafluoroethylglass glass fiber, makes the sealing of needle-valve more reliable.
Described valve body is equipped with security leak mouth between each connection mouth and sealing surface, conveniently finds leakage point, increase safety coefficient.
The beneficial effects of the utility model are: take above-mentioned design, improve traditional structural design, enhance the voltage endurance capability of valve, improve the use pressure of needle-valve.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Description of reference numerals:
1-valve body 2-Packing seat 3-filler 4-retainer nut 5-spring washer 6-hexagon socket cap head screw 7-valve pocket 8-handle 9-nut 10-valve rod pad 11-Cock screw 12-valve rod 13-filler bolt 14-packing press ring 15-screw thread gland 16-gland bolt
Embodiment
Valve rod 12 is connected with valve pocket by valve rod pad 10, nut 9, and freely can be rotated in valve pocket.Valve pocket 12 and filler bolt 13 are threaded connection, and fix with handle 8, Cock screw 11.
Need tighten filler bolt 13 during installation, make active force by the buffer function of packing press ring 14 on Packing seat 3, filler 3 extrudes and deformation occurs, and filler 3 is fitted tightly with valve body 1 with valve rod 12, filler 3, realizes soft seal.
Working procedure is as follows: handle 8 rotates, and drives valve pocket 7 to rotate, the valve rod 12 connected is moved up and down along valve rod axis direction and to separate with the sealing surface of valve body 1 or to contact, complete the open and close of valve with valve pocket 7.
Claims (2)
1. high pressure needle valve, comprise valve body, Packing seat, filler, retainer nut, spring washer, hexagon socket cap head screw, valve pocket, handle, nut, valve rod pad, Cock screw, valve rod, filler bolt, packing press ring, screw thread gland, gland bolt, it is characterized in that: valve rod is non-rotating lifting design, all have a security leak mouth between each connection mouth and sealing surface, high pressure needle valve has higher use pressure.
2. high pressure needle valve according to claim 1, is characterized in that: the material of described valve body is 316 stainless steel forgings, and valve rod material is 17-4PH, described filler polytetrafluoroethylglass glass fiber (RPTFE).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420442362.1U CN204344933U (en) | 2014-08-05 | 2014-08-05 | High pressure needle valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420442362.1U CN204344933U (en) | 2014-08-05 | 2014-08-05 | High pressure needle valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204344933U true CN204344933U (en) | 2015-05-20 |
Family
ID=53228202
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420442362.1U Expired - Fee Related CN204344933U (en) | 2014-08-05 | 2014-08-05 | High pressure needle valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204344933U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107420624A (en) * | 2017-08-21 | 2017-12-01 | 赛洛克流体设备成都有限公司 | A kind of follow-on sampling bottle needle valve |
| CN108556275A (en) * | 2018-05-31 | 2018-09-21 | 嘉兴懿铄精密模具有限公司 | A kind of three core self-lubricating needles |
-
2014
- 2014-08-05 CN CN201420442362.1U patent/CN204344933U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107420624A (en) * | 2017-08-21 | 2017-12-01 | 赛洛克流体设备成都有限公司 | A kind of follow-on sampling bottle needle valve |
| CN108556275A (en) * | 2018-05-31 | 2018-09-21 | 嘉兴懿铄精密模具有限公司 | A kind of three core self-lubricating needles |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150520 Termination date: 20180805 |