CN208221710U - Fixing ball valve - Google Patents
Fixing ball valve Download PDFInfo
- Publication number
- CN208221710U CN208221710U CN201820752178.5U CN201820752178U CN208221710U CN 208221710 U CN208221710 U CN 208221710U CN 201820752178 U CN201820752178 U CN 201820752178U CN 208221710 U CN208221710 U CN 208221710U
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- Prior art keywords
- packing ring
- valve rod
- annular
- flange
- valve body
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Abstract
The utility model discloses a kind of fixing ball valves, including valve rod, gland flange, packing ring, valve body, bolt and thrust pad；Valve rod is mounted in the mounting hole of valve body, and valve rod position corresponding with mounting hole is equipped with support collar, and thrust pad and packing ring are sleeved on valve rod, equipped with O-ring together between the outer wall and valve body of packing ring, twice O-ring is housed between valve rod and the inner wall of packing ring；The lower surface of gland flange and the top of valve body form one and form integrated annular shallow storage space with mounting hole, the outer wall of packing ring is equipped with annular flange, annular flange is located in annular shallow storage space, it is equipped with wound gasket between the upper surface of annular flange and the top of annular shallow storage space, is equipped with wound gasket between the lower surface of annular flange and the bottom of annular shallow storage space.The utility model has the following beneficial effects: it can greatly reduce the dielectric leakage phenomenon between gland flange and valve rod.
Description
Technical field
The utility model relates to ball valve technical fields, and in particular to a kind of fixing ball valve.
Background technique
Fixing ball valve is high-performance ball valve of new generation, is suitable for long-distance transport pipes and general industry pipeline, intensity, safety
Property, adverse environment resistant etc. carried out special consideration in design, be suitable for various corrosivity and non-aggressive medium or even one
The lower operating condition of a little temperature.Fixing ball valve torque is small, valve seat deformation is small, and sealing performance stabilization, long service life are suitable for height
Pressure, heavy caliber occasion.The advanced pre- valve component of spring has self-tightening characteristic, realizes upstream seal.Every valve there are two valve seat,
Each direction can seal, thus install without flow direction limitation, be two-way.Due to there is the above advantage, fixing ball valve is widely applied
In industries such as chemical industry, petroleum, natural gas, metallurgy, the also attention increasingly by user and valve manufacturer.
The gland flange of existing fixing ball valve is overall structure, and gland flange upper O-shape ring slot position is in gland flange middle part
Position, is unfavorable for processing, cannot control the finish of O-ring slot sealing surface well.Once the lower operating condition of temperature is encountered, to close
Cover smoothness requirements are higher, since whole gland flange O-ring slot sealing surface finish cannot be guaranteed that valve is in working condition
Under, it is easy to there is the phenomenon that dielectric leakage at gland flange O-ring.
Utility model content
The purpose of this utility model is to provide a kind of fixing ball valves, can greatly reduce between gland flange and valve rod
Dielectric leakage phenomenon.
To achieve the above object, the utility model provides the following technical solutions:
A kind of fixing ball valve, including valve rod, gland flange, packing ring, valve body, bolt and thrust pad；
Valve rod is mounted in the mounting hole of valve body, valve rod position corresponding with mounting hole be equipped with support collar, thrust pad and
Packing ring is sleeved on valve rod, and for thrust pad between packing ring and support collar, packing ring is loaded on the installation of valve rod and valve body
Between hole, equipped with O-ring together between the outer wall and valve body of packing ring, twice O shape is housed between valve rod and the inner wall of packing ring
Circle；
Gland flange covers on valve rod, and gland flange is fixed by the top of bolt and valve body, and gland flange will be located at it
The packing ring of lower section compresses, and the lower surface of gland flange and the top of valve body form one and form integrated annular storing with mounting hole
Space, the outer wall of packing ring are equipped with annular flange, and annular flange is located in annular shallow storage space, the upper surface of annular flange and ring
It is equipped with wound gasket between the top of shape shallow storage space, is equipped with and twines between the lower surface of annular flange and the bottom of annular shallow storage space
Around pad.
The working principle of the utility model are as follows: packing ring and gland flange are separate structures, and gland flange and packing ring can
With separate machined, the holding tank for accommodating O-ring is no longer equipped in gland flange.The setting of packing ring and wound gasket is so that gland method
Dielectric leakage phenomenon between blue and valve rod greatly reduces.
The utility model has the following beneficial effects: it can greatly reduce the dielectric leakage phenomenon between gland flange and valve rod.
Detailed description of the invention
Fig. 1 is the schematic diagram of the utility model.
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiment of the present utility model is further described.Implement below
Example is only used for clearly illustrating the technical solution of the utility model, and cannot be used as a limitation the protection model of limitation the utility model
It encloses.
The technical solution of the utility model specific implementation is:
As shown in Figure 1,
A kind of fixing ball valve, including valve rod 1, gland flange 2, packing ring 4, valve body 5, bolt 6 and thrust pad 8；
Valve rod 1 is mounted in the mounting hole of valve body 5, and the position corresponding with mounting hole of valve rod 1 is equipped with support collar, thrust pad
8 and packing ring 4 be sleeved on valve rod 1, thrust pad 8 between packing ring 4 and support collar, packing ring 4 be loaded on valve rod 1 and valve
Between the mounting hole of body 5, equipped with O-ring 7 together between the outer wall and valve body 5 of packing ring 4, the inner wall of valve rod 1 and packing ring 4 it
Between be equipped with twice O-ring 7；
2 sets of gland flange on valve rod 1, gland flange 2 is fixed by bolt 6 and the top of valve body 5, gland flange 2 will
The packing ring 4 being disposed below compresses, and the lower surface of gland flange 2 and the top of valve body 5 form one and form one with mounting hole
Annular shallow storage space, the outer wall of packing ring 4 is equipped with annular flange, and annular flange is located in annular shallow storage space, annular flange
Upper surface and annular shallow storage space top between be equipped with wound gasket 3, the lower surface of annular flange and annular shallow storage space
Wound gasket 3 is equipped between bottom.
The working principle of the utility model are as follows: packing ring 4 and gland flange 2 are separate structure, gland flange 2 and packing ring
4 can no longer be equipped with the holding tank for accommodating O-ring 7 with separate machined in gland flange 2.The setting of packing ring 4 and wound gasket 3 makes
The dielectric leakage phenomenon obtained between gland flange 2 and valve rod 1 greatly reduces.
Show the utility model has the following beneficial effects: it can greatly reduce the dielectric leakage between gland flange 2 and valve rod 1
As.
The above is only the preferred embodiment of the utility model, it is noted that for the common skill of the art
For art personnel, without deviating from the technical principle of the utility model, several improvements and modifications can also be made, these change
It also should be regarded as the protection scope of the utility model into retouching.
Claims (1)
1. a kind of fixing ball valve, which is characterized in that including valve rod, gland flange, packing ring, valve body, bolt and thrust pad；
Valve rod is mounted in the mounting hole of valve body, and valve rod position corresponding with mounting hole is equipped with support collar, thrust pad and filler
Ring set on the valve rod, thrust pad positioned at packing ring and support collar between, packing ring be loaded on valve rod and valve body mounting hole it
Between, equipped with O-ring together between the outer wall and valve body of packing ring, twice O-ring is housed between valve rod and the inner wall of packing ring；
Gland flange covers on valve rod, and gland flange is fixed by the top of bolt and valve body, and gland flange will be disposed below
Packing ring compress, the top of the lower surface of gland flange and valve body formed one with mounting hole formed integrated annular put it is empty
Between, the outer wall of packing ring is equipped with annular flange, and annular flange is located in annular shallow storage space, the upper surface of annular flange and annular
It is equipped with wound gasket between the top of shallow storage space, is equipped with winding between the lower surface of annular flange and the bottom of annular shallow storage space
Pad.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820752178.5U CN208221710U (en) | 2018-05-21 | 2018-05-21 | Fixing ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820752178.5U CN208221710U (en) | 2018-05-21 | 2018-05-21 | Fixing ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208221710U true CN208221710U (en) | 2018-12-11 |
Family
ID=64508980
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820752178.5U Active CN208221710U (en) | 2018-05-21 | 2018-05-21 | Fixing ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208221710U (en) |
-
2018
- 2018-05-21 CN CN201820752178.5U patent/CN208221710U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |