CN204553864U - integral cut-off valve - Google Patents
integral cut-off valve Download PDFInfo
- Publication number
- CN204553864U CN204553864U CN201520245034.7U CN201520245034U CN204553864U CN 204553864 U CN204553864 U CN 204553864U CN 201520245034 U CN201520245034 U CN 201520245034U CN 204553864 U CN204553864 U CN 204553864U
- Authority
- CN
- China
- Prior art keywords
- valve
- stuffing box
- valve body
- flap
- 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.)
- Active
Links
Abstract
Integral cut-off valve, relates to valve field.Comprise valve body, the center in valve body is provided with valve seat, and described valve seat is equipped with flap, and the upper end of flap is connected with valve rod; It is characterized in that: valve rod has placed stuffing box, the upper center of described valve body is provided with the cavity coincide with the lower end of stuffing box, and the lower end of stuffing box to be equipped with in the cavity of valve body upper center and to be tightly connected; Be provided with filler in described stuffing box and compressed by Gland, the valve rod above described Gland has been threaded nut seat, and nut seat is fastenedly connected by column and valve body, and the upper end of valve rod is connected with handwheel.The utility model eliminates the valve gap being connected to valve body upper end, and No leakage point, improves sealing effect.
Description
Technical field
The utility model relates to valve field, is specially a kind of integral cut-off valve.
Background technique
With stop valve in existing pipeline, because leak point is many, leak outside during pipeline internal medium phenomenon, and working life is short, and especially poisonous medium will cause immeasurable loss once leak outside.
Model utility content
The purpose of this utility model is to provide a kind of long service life, No leakage point, safe and reliable integral cut-off valve.
The technological scheme realizing above-mentioned purpose is: comprise valve body, and the center in valve body is provided with valve seat, and described valve seat is equipped with flap, and the upper end of flap is connected with valve rod; It is characterized in that: valve rod has placed stuffing box, the upper center of described valve body is provided with the cavity coincide with the lower end of stuffing box, and the lower end of stuffing box to be equipped with in the cavity of valve body upper center and to be tightly connected; Be provided with filler in described stuffing box and compressed by Gland, the valve rod above described Gland has been threaded nut seat, and nut seat is fastenedly connected by column and valve body, and the upper end of valve rod is connected with handwheel.
The both sides, upper-end surface of described stuffing box are wholely set two the ear seats be parallel to each other, and have swing bolt between two ear seats by pinned connection, and the screw rod end of swing bolt is upward through Gland, and is fixed by nut.
The utility model eliminates the valve gap being connected to valve body upper end, and No leakage point, improves sealing effect.
Described stuffing box lower end surface is provided with lower sealing surface, and described flap upper-end surface is provided with the upper sealing surface coordinated with the lower sealing surface of stuffing box lower end surface, and upper sealing surface and lower sealing surface are to being combined into sealing pair.
Above-mentioned sealing configuration further increases body cavity and extraneous sealing effect, achieves zero leakage; Can resistance to 600 DEG C of high temperature, simultaneously also can the ultralow temperature of resistance to subzero 196 DEG C, be highly suitable for inflammable, explosive and poisonous, that corrosivity is stronger harsh occasion.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
As shown in Figure 1, the utility model comprises valve body 1, and the center in valve body 1 is provided with valve seat 2, valve seat 2 is equipped with flap 3, and the upper end of flap 3 is connected with valve rod 4; Valve rod 4 has placed stuffing box 5, the upper center of valve body 1 is provided with the cavity coincide with the lower end of stuffing box 5, and the lower end of stuffing box 5 to be equipped with in the cavity at center, valve body 1 side and seal welding; Be provided with filler 6 in stuffing box 5 and compressed by Gland 7, the both sides, upper-end surface of stuffing box 5 are wholely set two the ear seats 8 be parallel to each other, swing bolt 10 is connected with by bearing pin 9 between two ear seats 8, the screw rod end of swing bolt 10 is upward through Gland 7, and is fixed by nut 11.
Valve rod 4 above Gland 7 has been threaded nut seat 12, and nut seat 12 is fastenedly connected by column 13 and valve body 1, and the top of valve rod 4 is connected with handwheel 14.
Stuffing box 5 lower end surface is provided with osculum conical seal (contact) face 15 upward as lower sealing surface, flap 3 upper-end surface is provided with the taper platform 16 that coordinates with the conical seal (contact) face 15 of stuffing box 5 lower end surface as upper sealing surface, when valve is fully opened, lower sealing surface and upper sealing surface are combined to form sealing pair, cut off valve body 1 and are communicated with extraneous.
Claims (3)
1. integral cut-off valve, comprises valve body, and the center in valve body is provided with valve seat, and described valve seat is equipped with flap, and the upper end of flap is connected with valve rod; It is characterized in that: valve rod has placed stuffing box, the upper center of described valve body is provided with the cavity coincide with the lower end of stuffing box, and the lower end of stuffing box to be equipped with in the cavity of valve body upper center and to be tightly connected; Be provided with filler in described stuffing box and compressed by Gland, the valve rod above described Gland has been threaded nut seat, and nut seat is fastenedly connected by column and valve body, and the upper end of valve rod is connected with handwheel.
2. integral cut-off valve according to claim 1, it is characterized in that: the both sides, upper-end surface of described stuffing box are wholely set two the ear seats be parallel to each other, swing bolt is had by pinned connection between two ear seats, the screw rod end of swing bolt is upward through Gland, and is fixed by nut.
3. integral cut-off valve according to claim 2, it is characterized in that: described stuffing box lower end surface is provided with lower sealing surface, described flap upper-end surface is provided with the upper sealing surface coordinated with the lower sealing surface of stuffing box lower end surface, and upper sealing surface and lower sealing surface are to being combined into sealing pair.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520245034.7U CN204553864U (en) | 2015-04-22 | 2015-04-22 | integral cut-off valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520245034.7U CN204553864U (en) | 2015-04-22 | 2015-04-22 | integral cut-off valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204553864U true CN204553864U (en) | 2015-08-12 |
Family
ID=53828976
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520245034.7U Active CN204553864U (en) | 2015-04-22 | 2015-04-22 | integral cut-off valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204553864U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104776228A (en) * | 2015-04-22 | 2015-07-15 | 南通市天源阀门制造有限公司 | Integrated stop valve |
-
2015
- 2015-04-22 CN CN201520245034.7U patent/CN204553864U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104776228A (en) * | 2015-04-22 | 2015-07-15 | 南通市天源阀门制造有限公司 | Integrated stop valve |
| WO2016169252A1 (en) * | 2015-04-22 | 2016-10-27 | 南通市天源阀门制造有限公司 | Integrated stop valve |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104776228A (en) | Integrated stop valve | |
| CN204628570U (en) | Multi-layer sealed Multifunctional stop valve | |
| CN204553864U (en) | integral cut-off valve | |
| CN203614767U (en) | Corrugated pipe forged steel valve | |
| CN204554031U (en) | Integral type bellows stop valve | |
| CN202927063U (en) | Large-diameter self-sealing valve | |
| CN203023527U (en) | Integrated pressure self-tightened zero-leakage flange gate valve | |
| CN104214362A (en) | Plug valve | |
| CN103091051A (en) | Leakage test device for oil bottom shell | |
| CN203131074U (en) | Wedge gate valve | |
| CN202188220U (en) | Bellows stop valve | |
| CN203348564U (en) | Large-diameter double-valve-flap pressure relief throttling valve | |
| CN204332608U (en) | For the sealing device of oil tank of transformer | |
| CN204664604U (en) | The linkage structure of stop valve inside | |
| CN204459244U (en) | A kind of stopcock | |
| CN203420876U (en) | Oil well pump oil inlet valve | |
| CN203979463U (en) | A kind of gate valve | |
| CN202691078U (en) | Stop valve with novel sealing way | |
| CN205745406U (en) | A kind of welding ball valve | |
| CN102226470A (en) | Oil filler plug and oil tank | |
| CN202091527U (en) | Oil filler plug and oil tank | |
| CN202144880U (en) | Floating ball valve | |
| CN205190770U (en) | Liquid chlorine filling bellows trip valve | |
| CN204300563U (en) | Flange | |
| CN204328054U (en) | A kind of novel on-line maintenance valve rod ball valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |