CN204647408U - A kind of DBB Two-way flow ball valve - Google Patents
A kind of DBB Two-way flow ball valve Download PDFInfo
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- CN204647408U CN204647408U CN201520361836.4U CN201520361836U CN204647408U CN 204647408 U CN204647408 U CN 204647408U CN 201520361836 U CN201520361836 U CN 201520361836U CN 204647408 U CN204647408 U CN 204647408U
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Abstract
The utility model discloses a kind of DBB Two-way flow ball valve, comprise valve body, connecting body, spheroid, valve seat, valve rod, valve gap and handle, described valve body two ends are fixedly connected with described connecting body, spheroid and valve seat is provided with in described valve body chamber, be provided with valve seat between described spheroid and described valve seat to inlay and enclose, the junction point of described valve seat and described connecting body, valve body is respectively equipped with spring; Described spheroid top is connected with taper knob by valve rod, and described taper knob is provided with handle, and described valve rod and described valve body junction point are provided with the valve gap and Gland that are mutually permanently connected, are fixedly connected with gudgeon bottom described spheroid; Described valve body outer side surface is also respectively equipped with bleeder valve, blowdown valve.The utility model adopts integral structure, easy for installation, good seal performance, and has the advantages such as high temperature resistant, low temperature resistant, corrosion-resistant, wear-resistant, antistatic, and can perfectly adaptively to use with external pipe, applies widely.
Description
Technical field
The utility model relates to a kind of valve body structure, is specifically related to a kind of DBB Two-way flow ball valve structure.
Background technique
DBB Two-way flow ball valve is exactly that a deck valve door is equipped with two spheroids, can realize Simultaneous Switching, also can one open-one close, realizes two blocking and discharge function.Replace the complex form of multiple valve series connection in conventional tube.Reduce the leakage point in pipe-line system, realize quick drain, closing function, sealability is reliable.
DBB Two-way flow ball valve has saved installing space to greatest extent.Simplify installation procedure.Reduce the pressure of pipe-line system.Facilitate instrument cleaning, two billiard ball valves of the identical bore of weight ratio want light by about 30%, effectively reduce the purchase cost of cost of production and user, thus obtain and use comparatively widely.
DBB Two-way flow ball valve ubiquity complex structure in the market, cost of production is higher, and uses also inconvenient, poor sealing performance, many defects such as adaptability is not extensive.
Summary of the invention
Goal of the invention: the purpose of this utility model is to solve deficiency of the prior art, provides that a kind of structure is simple, good seal performance and DBB Two-way flow ball valve easy to use.
Technological scheme: a kind of DBB Two-way flow ball valve described in the utility model, comprise valve body, connecting body, spheroid, valve seat, valve rod, valve gap and handle, described valve body two ends are fixedly connected with described connecting body, spheroid and valve seat is provided with in described valve body chamber, be provided with valve seat between described spheroid and described valve seat to inlay and enclose, the junction point of described valve seat and described connecting body, valve body is respectively equipped with spring; Described spheroid top is connected with taper knob by valve rod, and described taper knob is provided with handle, and described valve rod and described valve body junction point are provided with the valve gap and Gland that are mutually permanently connected, are fixedly connected with gudgeon bottom described spheroid; Described valve body outer side surface is also respectively equipped with bleeder valve, blowdown valve.
Further, described valve body is integral type structure, is provided with two spheroids in described valve cavity.
Further, described connecting body is fixedly connected with by bolt, nut with described valve body, described connecting body is also provided with the different Placements such as flange end, NPT threaded end, socket weld ends, docking welding end.
Further, the junction point of described valve seat and described connecting body, valve body is also provided with O type circle, spring energy-storage seal ring, fire proof seal circle.
Further, described valve gap is fixedly connected with by screw with Gland, is provided with limiting stopper between described Gland and described taper knob.
Further, described valve body and described connecting body, valve gap junction point are respectively equipped with pad, and described pad adopts the spirotallic gasket of stainless steel sheets and Expanded graphite composition.
Further, described valve body and be respectively equipped with O type circle between described connecting body, valve rod, valve gap and gudgeon.
Further, described O type circle adopts VITON seal ring or HNBR seal ring.
Further, described blowdown valve and bleeder valve are separately positioned on sidepiece and the top of described valve body, and blowdown valve and bleeder valve all adopt stainless steel.
Beneficial effect: the utility model has following beneficial effect:
1.DBB Two-way flow ball valve divides fixing and two large series of floating, and has two Trimmed sums discharge function, a valve body with two spheroids, the outside drain valve (needle stop valve) of the valve pocket band between two spheroids.Sealability is reliable, is applicable to the series connection of multiple stage valve, the occasion that seal request is strict;
2. ball valve design has antistatic, and the anti-pressure of valve rod goes out structure;
3. fire protection design is according to API 607/API 6FA standard, and fire-protection rating is high;
4. the sealing of valve seat can be soft seal, also can be the hard sealing of metal to metal;
5. valve mechanism adopts side to fill split type or top dress integral type two kinds of structural types;
6. the different Placements such as end is connected with flange end, NPT threaded end, socket weld ends, docking welding end;
7. according to actual conditions and medium character, valve design is applicable to normal temperature, high temperature, low temperature, and ultralow temperature is corrosion-resistant, wear-resistant mixture condition of Denging;
8. driving mode has: handle, and worm-gear driven is electronic, the driving mode such as to surge.
Accompanying drawing explanation
Fig. 1 is the utility model ball valve valve opening state structural representation;
Fig. 2 is the utility model ball valve door closure state structural representation;
Fig. 3 is the utility model valve seat and valve body junction point enlarged diagram;
Fig. 4 is the cross-sectional view of the utility model ball valve.
Embodiment
A kind of DBB Two-way flow ball valve as shown in Fig. 1 to Fig. 4, comprise valve body 1, connecting body 2, spheroid 3, valve seat 4, valve rod 9, valve gap 11 and handle 15, described valve body 1 two ends are fixedly connected with described connecting body 2, spheroid 3 and valve seat 4 is provided with in described valve body 1 chamber, be provided with valve seat between described spheroid 3 and described valve seat 4 and inlay circle 5, described valve seat 4 is respectively equipped with spring 6 with the junction point of described connecting body 2, valve body 1; Described spheroid 3 top is connected with taper knob 14 by valve rod 9, and described taper knob 14 is provided with handle 15, and described valve rod 9 is provided with described valve body 1 junction point the valve gap 11 and Gland 12 that are mutually permanently connected, is fixedly connected with gudgeon 10 bottom described spheroid 3; Described valve body 1 outer side surface is also respectively equipped with bleeder valve 28, and 30, blowdown valve 29,31.
As the further optimization of the present embodiment, in order to improve sealability, fire prevention, high temperature-proof, antistatic etc. and the Adapter Property of this product, described valve body 1 is integral type structure, is provided with two spheroids 3 in described valve cavity.Described connecting body 2 is fixedly connected with by bolt 16, nut 17 with described valve body 1, described connecting body 2 is also provided with the different Placements such as flange end, NPT threaded end, socket weld ends, docking welding end.Described valve seat 4 is also provided with O type circle 7, spring energy-storage seal ring, fire proof seal circle 8 with the junction point of described connecting body 2, valve body 1.Described valve gap 11 and Gland 12 are by screw 18,19, and 20 are fixedly connected with, and described gudgeon 10 is also fixedly connected with by screw 21 with described valve body 1, are provided with limiting stopper 13 between described Gland 12 and described taper knob 14.Described valve body 1 is respectively equipped with pad 22,23 with described connecting body 2, valve gap 11 junction point, and described pad 22,23 adopts the spirotallic gasket of stainless steel sheets and Expanded graphite composition.Described valve body 1 and be respectively equipped with O type circle 24,25,26,27 between described connecting body 2, valve rod 9, valve gap 11 and gudgeon 10, described O type circle 7,24,25,26,27 all adopts VITON seal ring or HNBR seal ring.Described bleeder valve 28,30 is separately positioned on sidepiece and the top of described valve body 1, and adopts stainless steel.Described blowdown valve 29,31 is connected with described bleeder valve 28 or is located at sidepiece and the top of described valve body 1 respectively.
The working state of ball valve valve described in the utility model comprises: (1) two spheroid is opened simultaneously and closes two states simultaneously: as shown in Figure 1, spheroid passage overlaps with valve channel, valve is in opening state, according to installation needs, medium can enter from any one end of valve.Valve closes by lever drive valve rod clockwise direction half-twist from reaching, and valve closing, blocks the flowing medium entering valve passage, as shown in Figure 2.Valve is opened from closing to, and valve rod is half-twist counterclockwise, and valve opening, connects ducted flowing medium, as shown in Figure 1.
Assembly process of the present utility model:
(1) O RunddichtringO and fire proof seal circle are respectively charged into the relevant position of manufactured valve seat, amount to 4 valve seats; Then wherein two valve seats are loaded valve body and valve seat hole sites;
(2) stud is loaded the tapped hole on valve body two sides, ensures that the height that every stud exposes is consistent with kind of calliper,
(3) Nonlubricated bearing is loaded spheroid lower valve rod hole, then a spheroid is loaded valve body side, ensure that spheroid passage with valve base channel on the same axis with concentric shafts assembling method, then another spheroid is loaded in the same way the opposite side of valve body;
(4) in the groove of O shape circle loading about two bodies, then spring is loaded successively in the spring eye of left and right body, spring is coated with a little butter, prevents spring from dropping, then remaining two valve seats are respectively charged into left and right body;
(5) the left and right body installing accessory is loaded valve body, nut that every stud is screwed on, screw up with a wrench nut;
(6) first spirotallic gasket is loaded the step place of lower valve rod, then two O shape circles are respectively charged in the O shape ring recess of lower valve rod;
(7) load upper lower valve rod successively in spheroid hole, the height that measurement valve rod exposes ensures that valve rod is seated and then screw is screwed in tapped hole, screws up with a wrench;
(8) O shape circle is respectively charged in the groove of valve gap, then valve gap is installed on valve rod from top to bottom; Again screw is screwed in tapped hole, screw up with a wrench;
(9) fire proof seal circle is loaded in the hole at valve gap top, then Gland is inserted in by valve stem tip, screw of screwing on, screws up with a wrench;
(10) limiting stopper is inserted in valve rod until plane Gland from valve stem top;
(11) handle cover installs on valve rod, is loaded on handle, is screwed handle and taper knob;
(12) bleeder valve is loaded valve body intermediate hole position and ensure that bleed outlet is downward, then load onto the plug screw of releasing that NPT is threaded;
(13) rotary hand controller valve, sensation, observe spheroid with or without jam phenomenon, if normally, valve sets installs complete.
This DBB Two-way flow ball valve follows API 6D completely, the design principle of API 6A, ASME VIII and ASME B16.34 standard, is provided with full-bore and the large series of undergauge two.The channel internal diameter of whole-through diameter ball valve is consistent with pipeline internal diameter, and not only fluid resistance is minimum, is also convenient to pipeline cleaning.And the fluid resistance of reducing ball valve is more much lower than the fluid resistance of identical bore stop valve.
Valve body adopts forging or bar machine shaping, the internationally recognized material of strict employing: ASTM A105N, ASTM A 350 LF2/LF3/LF6, ASTM A182 F304/F316/F316L/F44/F51/F53/F55, HASTELLOY C 276, INCONEL 625/825, MENEL 400; Soft seal loop material has: PTFE, RPTFE, PCTFE, PPL, NYLON, DEVLON, PEEK etc.Metallic sealing material has: Tungsten carbite (TC) to Tungsten carbite (TC), chromium carbide to chromium carbide, STL6 to STL6, STL21 to STL21, STL6 to STL12, STL12 to STL21.Tungsten carbite, chromium carbide adopts supersonic spray coating technology, and adhesive strength is large, and hardness is high.STL can adopt the method for surfacing or built-up welding to cover the sealing surface position of spheroid and valve seat, both wear-resisting, corrosion-resistant high temperature resistant again, is applicable in harsh work condition environment.
The technical parameter of this DBB Two-way flow ball valve is:
Valve latus rectum: 1/2 " ~ 24 " 15 ~ 600mm;
Pressure rating: 150LB ~ 2500LB, 1.6MPa ~ 42MPa, 2000PSI ~ 10000PSI;
Applicable temperature :-196 DEG C ~ 550 DEG C;
Design standard presses API 608, ISO 17292, API 6D, API 6A etc.;
Structure length specifies numerical value by company standard or client;
End connects: flange presses ASME B16.5, API 6A-6B/6BX;
SOCKET WELDING connecting end: ASME B16.11;
Butt welding connecting end: ASME B16.25;
The relevant criterion such as test and inspection presses API6D, API 6A, API 598, ISO 5208.
The utility model adopts integral structure, easy for installation, good seal performance, and has the advantages such as high temperature resistant, low temperature resistant, corrosion-resistant, wear-resistant, antistatic, and can perfectly adaptively to use with external pipe, applies widely.
Claims (9)
1. a DBB Two-way flow ball valve, it is characterized in that: comprise valve body, connecting body, spheroid, valve seat, valve rod, valve gap and handle, described valve body two ends are fixedly connected with described connecting body, spheroid and valve seat is provided with in described valve body chamber, be provided with valve seat between described spheroid and described valve seat to inlay and enclose, the junction point of described valve seat and described connecting body, valve body is respectively equipped with spring; Described spheroid top is connected with taper knob by valve rod, and described taper knob is provided with handle, and described valve rod and described valve body junction point are provided with the valve gap and Gland that are mutually permanently connected, are fixedly connected with gudgeon bottom described spheroid; Described valve body outer side surface is also respectively equipped with bleeder valve and blowdown valve.
2. a kind of DBB Two-way flow ball valve according to claim 1, is characterized in that: described valve body is integral type structure, is provided with two spheroids in described valve cavity.
3. a kind of DBB Two-way flow ball valve according to claim 1, is characterized in that: described connecting body is fixedly connected with by bolt, nut with described valve body, described connecting body is also provided with flange end, NPT threaded end, socket weld ends, docking welding end.
4. a kind of DBB Two-way flow ball valve according to claim 1, is characterized in that: the junction point of described valve seat and described connecting body, valve body is also provided with O type circle, spring energy-storage seal ring, fire proof seal circle.
5. a kind of DBB Two-way flow ball valve according to claim 1, is characterized in that: described valve gap is fixedly connected with by screw with Gland, is provided with limiting stopper between described Gland and described taper knob.
6. a kind of DBB Two-way flow ball valve according to claim 1, is characterized in that: described valve body and described connecting body, valve gap junction point are respectively equipped with pad, and described pad adopts the spirotallic gasket of stainless steel sheets and Expanded graphite composition.
7. a kind of DBB Two-way flow ball valve according to claim 1, is characterized in that: described valve body and be respectively equipped with O type circle between described connecting body, valve rod, valve gap and gudgeon.
8. a kind of DBB Two-way flow ball valve according to claim 4 or 7, is characterized in that: described O type circle adopts VITON seal ring or HNBR seal ring.
9. a kind of DBB Two-way flow ball valve according to claim 1, is characterized in that: described blowdown valve and bleeder valve are separately positioned on sidepiece and the top of described valve body, and blowdown valve and bleeder valve all adopt stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520361836.4U CN204647408U (en) | 2015-05-29 | 2015-05-29 | A kind of DBB Two-way flow ball valve |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520361836.4U CN204647408U (en) | 2015-05-29 | 2015-05-29 | A kind of DBB Two-way flow ball valve |
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| CN204647408U true CN204647408U (en) | 2015-09-16 |
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| CN201520361836.4U Active CN204647408U (en) | 2015-05-29 | 2015-05-29 | A kind of DBB Two-way flow ball valve |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104930215A (en) * | 2015-05-29 | 2015-09-23 | 嘉兴五洲阀门有限公司 | DBB duplex ball valve |
| CN106015624A (en) * | 2016-07-25 | 2016-10-12 | 昆山维萨阀门有限公司 | Self-pressure-release type valve seat and double-ball fixed ball valve |
| CN110440021A (en) * | 2019-08-07 | 2019-11-12 | 西诺威阀门控制（苏州）有限公司 | A kind of high temperature formula DBB fixing ball valve valve group |
| CN112049956A (en) * | 2020-09-03 | 2020-12-08 | 江苏亿阀股份有限公司 | Angle type duplex ball valve for nuclear submarine and use method thereof |
-
2015
- 2015-05-29 CN CN201520361836.4U patent/CN204647408U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104930215A (en) * | 2015-05-29 | 2015-09-23 | 嘉兴五洲阀门有限公司 | DBB duplex ball valve |
| CN106015624A (en) * | 2016-07-25 | 2016-10-12 | 昆山维萨阀门有限公司 | Self-pressure-release type valve seat and double-ball fixed ball valve |
| CN110440021A (en) * | 2019-08-07 | 2019-11-12 | 西诺威阀门控制（苏州）有限公司 | A kind of high temperature formula DBB fixing ball valve valve group |
| CN112049956A (en) * | 2020-09-03 | 2020-12-08 | 江苏亿阀股份有限公司 | Angle type duplex ball valve for nuclear submarine and use method thereof |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200116 Address after: Wenzhou city Longwan District Yongqiang High-tech Industrial Park in Zhejiang province 325000 Patentee after: Wuzhou Valve Co., Ltd. Address before: 314300 No. 88 Haihe River Road, Haiyan Economic Development Zone, Jiaxing, Zhejiang Patentee before: Jiaxing Wuzhou Valve Co., Ltd. |