CN203036009U - Multiple-circuit valve - Google Patents
Multiple-circuit valve Download PDFInfo
- Publication number
- CN203036009U CN203036009U CN 201320031213 CN201320031213U CN203036009U CN 203036009 U CN203036009 U CN 203036009U CN 201320031213 CN201320031213 CN 201320031213 CN 201320031213 U CN201320031213 U CN 201320031213U CN 203036009 U CN203036009 U CN 203036009U
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- China
- Prior art keywords
- rotary spool
- valve body
- rolling bearing
- ring
- pilot hole
- Prior art date
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- Expired - Lifetime
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Abstract
The utility model discloses a multiple-circuit valve which comprises an upper valve body, a lower valve body and rotation valve cores. An upper assembly hole for one rotation valve core to be installed is formed in the upper valve body. A lower assembly hole for the rotation valve core to be installed is formed in the lower valve body. The rotation valve core is arranged in the upper assembly hole and the lower assembly hole in a penetrating mode. An upper rolling bearing used for being assembled with the upper valve body is arranged on the rotation valve core at the upper assembly hole. A lower rolling bearing used for being assembled with the lower valve body is arranged on the rotation valve core at the lower assembly hole. The lower portion of the rotation valve core is arranged in the lower assembly hole and the upper end of the rotation valve core extends out of the upper assembly hole. The upper rolling bearing and the lower rolling bearing are used for the fixation of the rotation valve core of the multiple-circuit valve so that the multiple-circuit valve can be suitable for high pressure grade working conditions and the rotation valve cores can operate stably.
Description
Technical field
The utility model relates to a kind of multi-way valve, relates in particular to a kind ofly for metering that the oil well well yield is taken turns, and to obtain the multi-way valve of transferring the crack double sealing structure that has of dynamic oil well creation data, belongs to oil-gas gathering and transportation system fields such as oil, chemical industry.
Background technique
The multi-way valve that is applied to petroleum industry field at present mainly adopts plane sealing pair (be 200420006528.1 referring to application number, notice of authorization number be the Chinese patent of CN2709740Y) and cylinder sealing pair to realize sealing.Adopting the valve base sealing of the multi-way valve of cylinder sealing pair is softwood matter, wear compensation is provided by elastic element in the course of the work, when an amount of seal wear end cycle, need stop well servicing, at this moment need to open flange that comes the liquid entrance of cylinder sealing pair rotating multi-channel valve, make the elastic element pressurized with special-purpose adjustment means adjusting, and act on seat ring, after seal pressure is provided, to resume production.
Adopting the structural feature of the rotating multi-channel valve of plane sealing pair is uniform several circular section runner filler openings on planar circumferential, valve base sealing ring sealing pair is Hardmetal materials, plain grinding is easy to process, the secondary sealing of plane sealing is reliable, long working life, when circular section runner filler opening size is big (as 3 "; 4 " or 5 "); then adopt fan-shaped runner sealing pair multi-way valve (can be 200620167076.4 referring to application number; notice of authorization number is the Chinese utility model patent of CN201034178Y); kept the basically identical with the multi-way valve body size that adopts the cylinder sealing pair; but when the pressure rank is higher; have the pressure reduction of pressure surge and the different formation of each cavity pressure, cause the stressed variation of rotary spool, the spool operation process is not steady, moment of torsion can occur and lay particular stress on phenomenon, even the spool stuck phenomenon can occur.Simultaneously, the seepage phenomenon can appear in each matching trim of multi-way valve.
The model utility content
In view of the above-mentioned problems in the prior art, technical problem to be solved in the utility model provides the multi-way valve that a kind of spool operates steadily.
In order to solve the problems of the technologies described above, the utility model has adopted following technological scheme: a kind of multi-way valve, comprise upper valve body, following valve body, rotary spool, offer the last pilot hole for the described rotary spool of installing in the described upper valve body, offer the following pilot hole for the described rotary spool of installing in the described valve body down, described rotary spool is arranged in described pilot hole and the described pilot hole down gone up, be positioned at the described described rotary spool of going up the pilot hole place be provided with for the last rolling bearing of described upper valve body assembling, the described rotary spool that is positioned at described down pilot hole place be provided with for the following rolling bearing of described valve body down assembling, the bottom of described rotary spool is positioned at described pilot hole down, and the described pilot hole of going up is stretched out in the upper end of described rotary spool.
As preferably, the described rotary spool that is positioned at described upward pilot hole is little for the external diameter of the upper end of close described rotary spool, cylindric away from the reducing that the external diameter of the upper end of described rotary spool is big, and forming the first annular boss, the described inner ring of going up rolling bearing is connected on described first boss;
The described rotary spool that is positioned at described pilot hole down is little for the external diameter of the lower end of close described rotary spool, cylindric away from the reducing that the external diameter of the lower end of described rotary spool is big, and forming the second annular boss, the described inner ring of rolling bearing down is connected on described second boss;
Be arranged with on the described rotary spool and be positioned at the described adjusting nut that is used for regulating described upward rolling bearing and the axial play of following rolling bearing of going up the rolling bearing top.
As preferably, describedly go up rolling bearing and following rolling bearing is tapered roller bearing.
As preferably, described adjusting nut has a plurality of axial matching holes, and described matching hole is equipped with for the position of regulating described adjusting nut and with described adjusting nut and is fixed on positioning screwn on the described upper valve body.
As preferably, be provided with black box between the described rotary spool of described adjusting nut top and the described upper valve body; Be provided with two seals circle separately between the described rotary spool of described upward rolling bearing below and the described upper valve body; The described rotary spool of described rolling bearing above and below down and the described two seals circle that is provided with between the valve body down separately.
As preferably, described black box comprises and is set on the described rotary spool and is pressed on Sealing shield ring on the described adjusting nut, is positioned at stuffing box packing on the described Sealing shield ring, is set on the described rotary spool and is pressed on the pressure ring in the described stuffing box packing and acts on the fastening piece that is used for the described pressure ring of pretension on the described pressure ring.
As preferably, described upper valve body and following valve body surface of contact adopt the tongue and groove seal washer to realize sealing, and the axial fitting surface employing seal ring of described upper valve body and following valve body seals.
As preferably, the middle part of described rotary spool offers the first passage of perforation, offer the second channel of the perforation relative with described first passage in the described upper valve body, described first passage and described second channel opposite end are provided with seat ring, form the 3rd boss of annular on the inwall of described first passage, six square nuts that are positioned on described the 3rd boss are set in the described first passage between described seat ring and described the 3rd boss, be arranged on six square nuts in described described under the effect of six square nuts distortion produce the belleville spring of axial force, the top of described belleville spring is arranged under the effect of described belleville spring the upwards Thrust ring of pushing tow, is provided for sealing the seal ring of described rotary spool and described seat ring between described Thrust ring and the described seat ring.
Compared with prior art, the beneficial effect of multi-way valve of the present utility model is:
1, the rotary spool of multi-way valve of the present utility model adopts upper and lower rolling bearing to fix, and makes multi-way valve of the present utility model can adapt to other working environment of pressure level, and makes the rotary spool smooth running.
2, the axial internal clearance of the upper and lower rolling bearing of multi-way valve of the present utility model can require to regulate by adjusting nut according to reality, therefore multi-way valve of the present utility model has Location accuracy height, rotary spool running advantage more stably, has overcome the phenomenon that lays particular stress on that rotary spool appears in the too high meeting of pressure rank.
3, between the rotary spool of multi-way valve of the present utility model and the upper and lower valve body, between the fitting surface of upper valve body and following valve body, and be double sealing structure between the second channel of the first passage of rotary spool and upper valve body, make sealing more reliable, longer service life.
Description of drawings
Fig. 1 is the sectional view of embodiment's of the present utility model multi-way valve;
Fig. 2 is the enlarged view of A part among Fig. 1;
Fig. 3 is the enlarged view of B part among Fig. 1;
Fig. 4 is the structural representation of the adjusting nut in the embodiment's of the present utility model multi-way valve.
Description of reference numerals
Valve body under the 1-upper valve body 2-
3-rotary spool 4-goes up rolling bearing
Rolling bearing 6-first boss under the 5-
The 7-second boss 8-adjusting nut
9-positioning screwn 10-matching hole
The 11-first seal ring 12-second seal ring
13-Sealing shield ring 14-stuffing box packing
15-pressure ring 16-fastening piece
17-stud 18-tongue and groove seal washer
19-the 3rd seal ring 20-first passage
21-second channel 22-seat ring
Six square nuts in 23-the 3rd boss 24-
25-belleville spring 26-Thrust ring
27-seal ring 28-plug
29-the 4th seal ring
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail, but not as to restriction of the present utility model.
As shown in Figures 1 to 4, the disclosed a kind of multi-way valve of embodiment of the present utility model, comprise upper valve body 1, following valve body 2 and rotary spool 3, offer the last pilot hole (figure does not indicate) that is used for installing rotary spool 3 of perforation in the upper valve body 1, rotary spool 3 passes the described pilot hole of going up, upper valve body 1 is in rotary spool 3 both sides is symmetrical arranged, the described outer operating end of being convenient to handle rotary spool 3 rotations that forms of pilot hole of going up is stretched out in the upper end of rotary spool 3.Offer the following pilot hole (not shown) for installing rotary spool 3 on the following valve body 2, the bottom of rotary spool 3 is positioned at described pilot hole down, for the ease of assembling, the axially locating of rotary spool 3 and bear axially and load radially, be positioned at the described rotary spool 3 of going up the pilot hole place be provided with for the last rolling bearing 4 of upper valve body 1 assembling, be positioned at the described rotary spool 3 at pilot hole place down and be provided with for the following rolling bearing 5 that assembles with following valve body 2.
A kind of preferred version as present embodiment, as depicted in figs. 1 and 2, being positioned at the described rotary spool 3 of going up pilot hole is that reducing is cylindric, near the external diameter of the upper end of rotary spool 3 less than the external diameter away from the upper end of rotary spool 3, thereby make rotary spool 3 form first boss 6 of annular in the pilot hole on described, the inner ring of last rolling bearing 4 is connected on first boss 6.The rotary spool 3 that is positioned at described pilot hole down is also cylindric for reducing, near the external diameter of the lower end of rotary spool 3 less than the external diameter away from the lower end of rotary spool 3, thereby make rotary spool 3 form second boss 7 of annular in described pilot hole down, the inner ring of following rolling bearing 5 is connected on second boss 7.In order to regulate the axial internal clearance of rolling bearing 4 and following rolling bearing 5, preventing that in use stuck phenomenon appears in rotary spool 3, be arranged with the adjusting nut 8 that is positioned at above the rolling bearing 4 at rotary spool 3.
The rotary spool 3 of multi-way valve of the present utility model has the high advantage of Location accuracy by last rolling bearing 4 and following rolling bearing 5 with this bearing support structure that upper valve body 1 and following valve body 2 are assembled together, and can guarantee that rotary spool 3 runnings are more steady, overcome the phenomenon that lays particular stress on that rotary spool 3 occurred when the pressure rank was too high.
As the further preferred version of present embodiment, last rolling bearing 4 and following rolling bearing 5 are tapered roller bearing, to bear radial load and thrust load effectively.
As the another kind of further preferred version of present embodiment, the adjusting nut 8 that regulates behind the position need be fixed on the upper valve body 1 by positioning screwn 9.Owing to only be provided with the positioning hole (not shown) of two symmetries on the upper valve body 1.In order to make the rotation of rotation nut 8 all have the matching hole corresponding with described positioning hole on the upper valve body 1 to any positions.As shown in Figure 4, the adjusting nut 8 of multi-way valve of the present utility model need arrange a plurality of axial matching holes 10, and just adjusting nut 8 is the adjusting nut of porous.Positioning screwn 9 is located in matching hole 10 and reaches in the described positioning hole corresponding with it to be used for that adjusting nut 8 is fixed on upper valve body 1.
When assembling, should pack into earlier and go up rolling bearing 4, and guarantee its rotation steadily, flexibly, the adjusting nut 8 of packing into is then regulated the axial clearance (axial internal clearance) that goes up rolling bearing 4 with adjusting nut 8.Turn clockwise adjusting nut 8 to dieback on last rolling bearing 4, be rotated counterclockwise 25 °～40 ° then, the axial clearance of adjusting nut 8 and last rolling bearing 4 is remained between 0.15mm～0.20mm rotate flexibly so that go up rolling bearing 4.Insert matching hole 10 and fixed hole optimal with it with positioning screwn 9 at last, with yi word pattern bottle opener screwed in place screw 9.
As the another kind of preferred version of present embodiment, as shown in Figure 2, in order to guarantee the sealing between rotary spool 3 and the upper valve body 1, be provided with black box between the rotary spool 3 of adjusting nut 8 tops and the upper valve body 1; Be provided with twice first seal ring 11 separately between the rotary spool 3 of last rolling bearing 4 belows and the upper valve body 1; Be provided with twice second seal ring 12 separately between the rotary spool 3 of following rolling bearing 5 above and belows and the following valve body 2.Above-mentioned black box and each seal ring the sealing effect that can reach good is set, make each matching trim the seepage phenomenon can not occur.
Further preferred version as present embodiment, described black box comprises Sealing shield ring 13, stuffing box packing 14, pressure ring 15 and fastening piece 16, Sealing shield ring 13 is set on the rotary spool 3 and is pressed on the adjusting nut 8, the effect of first layer sealing is played in the setting of Sealing shield ring 13, stuffing box packing 14 is arranged on the Sealing shield ring 3, pressure ring 15 is set on the rotary spool 3 and is positioned at the top of stuffing box packing 14, pressure ring 15 is provided with fastening piece 16, by the fastening piece 16 on the pretension pressure ring 15, pressure ring 15 is pressed in the stuffing box packing 14, and stuffing box packing 14 just forms second layer sealing.Fastening piece 16 in the present embodiment just can be pressed on pressure ring 15 in the stuffing box packing 14 by the described nut of pretension for bolt and the nut that is set on the bolt.
Another preferred version as present embodiment, as shown in Figure 1, the upper valve body 1 of multi-way valve of the present utility model is positioned at the top of valve body 2 down, the lower surface of upper valve body 1 fits with the upper surface of following valve body 2, form surface of contact, just upper valve body 1 and following valve body 2 are tightened together by a plurality of stud 17 that are distributed on the upper valve body 1.The surface of contact of upper valve body 1 and following valve body 2 adopts tongue and groove seal washer 18 to realize sealing.Continuation is in conjunction with Fig. 1, and the lower end of upper valve body 1 embeds down in the valve body 2, therefore, at the axial fitting surface of the upper valve body 1 of this embedding place and following valve body 2 the 3rd seal ring 19 is set and seals.Therefore fitting surface and the surface of contact of the axial seal of upper valve body 1 and following valve body 2 have been formed double-sealing, have high pressure resistantly, use safe and reliable advantage for a long time.
Another preferred version as present embodiment, as shown in figures 1 and 3, the middle part of rotary spool 3 offers the first passage 20 of perforation, offer the second channel 21 of the perforation relative with first passage 20 in the upper valve body 1, seat ring 22 is arranged in the relative end of first passage 20 and second channel 21, in order to realize the sealing between rotary spool 3 and the seat ring 22, adopted following sealing configuration: be formed with the 3rd boss 23 on the inwall of first passage 20, in the first passage 20 between seat ring 22 and the 3rd boss 23 six square nuts 24 that are positioned on the 3rd boss 23 are set, interior six square nuts 24 comprise columned two-part that external diameter does not wait, the end that external diameter is bigger is positioned on the 3rd boss 23, the less end of external diameter is towards seat ring 22, the less circular cylinder shaped portion of external diameter is arranged with belleville spring 25 outward, belleville spring 25 is provided with Thrust ring 26, between the inwall of Thrust ring 26 and first passage 20 seal ring 27 is set.
As shown in figures 1 and 3, in needs are regulated during six square nuts 24, unload plug 28 earlier, the adjustment means (not shown) of special use is extend in the second channel 21, act on the inner chamber body of interior six square nuts 24 then, six square nuts 24 move up in driving, belleville spring 25 compressed distortion in the process that interior six square nuts 24 move up, and produce axial force and promote Thrust ring 26, Thrust ring 26 crush seal rings 27, make seal ring 27 radial expansions, thereby play the effect of sealing, thereby reach the purpose that the sealed junction that increases multi-way valve of the present utility model is made a concerted effort.After having adjusted, unload and take out adjustment means, load onto plug 28.In order to realize the effect of double-sealing, between the inwall of rotary spool 3, also be provided with the 4th seal ring 29 at seat ring 22 in addition.
Above embodiment is exemplary embodiment of the present utility model only, is not used in restriction the utility model, and protection domain of the present utility model is defined by the claims.Those skilled in the art can make various modifications or be equal to replacement the utility model in essence of the present utility model and protection domain, this modification or be equal to replacement and also should be considered as dropping in the protection domain of the present utility model.
Claims (8)
1. multi-way valve, comprise upper valve body, following valve body, rotary spool, it is characterized in that, offer the last pilot hole for the described rotary spool of installing in the described upper valve body, offer the following pilot hole for the described rotary spool of installing in the described valve body down, described rotary spool is arranged in described pilot hole and the described pilot hole down gone up, be positioned at the described described rotary spool of going up the pilot hole place be provided with for the last rolling bearing of described upper valve body assembling, the described rotary spool that is positioned at described down pilot hole place be provided with for the following rolling bearing of described valve body down assembling, the bottom of described rotary spool is positioned at described pilot hole down, and the described pilot hole of going up is stretched out in the upper end of described rotary spool.
2. multi-way valve according to claim 1, it is characterized in that, the described rotary spool that is positioned at described upward pilot hole is little for the external diameter of the upper end of close described rotary spool, cylindric away from the reducing that the external diameter of the upper end of described rotary spool is big, and forming the first annular boss, the described inner ring of going up rolling bearing is connected on described first boss;
The described rotary spool that is positioned at described pilot hole down is little for the external diameter of the lower end of close described rotary spool, cylindric away from the reducing that the external diameter of the lower end of described rotary spool is big, and forming the second annular boss, the described inner ring of rolling bearing down is connected on described second boss;
Be arranged with on the described rotary spool and be positioned at the described adjusting nut that is used for regulating described upward rolling bearing and the axial play of following rolling bearing of going up the rolling bearing top.
3. multi-way valve according to claim 1 and 2 is characterized in that, the described rolling bearing of going up is tapered roller bearing with following rolling bearing.
4. multi-way valve according to claim 2, it is characterized in that, described adjusting nut has a plurality of axial matching holes, and described matching hole is equipped with for the position of regulating described adjusting nut and with described adjusting nut and is fixed on positioning screwn on the described upper valve body.
5. according to claim 2 or 4 described multi-way valve, it is characterized in that, be provided with black box between the described rotary spool of described adjusting nut top and the described upper valve body; Be provided with two seals circle separately between the described rotary spool of described upward rolling bearing below and the described upper valve body; The described rotary spool of described rolling bearing above and below down and the described two seals circle that is provided with between the valve body down separately.
6. multi-way valve according to claim 5, it is characterized in that described black box comprises and is set on the described rotary spool and is pressed on Sealing shield ring on the described adjusting nut, is positioned at stuffing box packing on the described Sealing shield ring, is set on the described rotary spool and is pressed on the pressure ring in the described stuffing box packing and acts on the fastening piece that is used for the described pressure ring of pretension on the described pressure ring.
7. multi-way valve according to claim 1 is characterized in that, described upper valve body and following valve body surface of contact adopt the tongue and groove seal washer to realize sealing, and the axial fitting surface of described upper valve body and following valve body adopts the seal ring sealing.
8. multi-way valve according to claim 1, it is characterized in that, the middle part of described rotary spool offers the first passage of perforation, offer the second channel of the perforation relative with described first passage in the described upper valve body, described first passage and described second channel opposite end are provided with seat ring, form the 3rd boss of annular on the inwall of described first passage, six square nuts that are positioned on described the 3rd boss are set in the described first passage between described seat ring and described the 3rd boss, be arranged on six square nuts in described described under the effect of six square nuts distortion produce the belleville spring of axial force, the top of described belleville spring is arranged under the effect of described belleville spring the upwards Thrust ring of pushing tow, is provided for sealing the seal ring of described rotary spool and described seat ring between described Thrust ring and the described seat ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320031213 CN203036009U (en) | 2013-01-21 | 2013-01-21 | Multiple-circuit valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320031213 CN203036009U (en) | 2013-01-21 | 2013-01-21 | Multiple-circuit valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203036009U true CN203036009U (en) | 2013-07-03 |
Family
ID=48688138
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320031213 Expired - Lifetime CN203036009U (en) | 2013-01-21 | 2013-01-21 | Multiple-circuit valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203036009U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103615574A (en) * | 2013-11-29 | 2014-03-05 | 中国铁建重工集团有限公司 | Reversing valve device |
| CN103939641A (en) * | 2013-01-21 | 2014-07-23 | 克拉玛依市金牛信泰石油设备有限公司 | Multiway valve |
| CN104613037A (en) * | 2015-02-04 | 2015-05-13 | 芜湖金牛信泰石油设备有限公司 | Multiple unit valve and multiple unit valve skid |
| WO2015188452A1 (en) * | 2014-06-10 | 2015-12-17 | 克拉玛依市金牛信泰石油设备有限公司 | Valve seat ring and multi-way valve having valve seat ring |
| WO2016123845A1 (en) * | 2015-02-04 | 2016-08-11 | 芜湖金牛信泰石油设备有限公司 | Multi-way valve |
| CN107035738A (en) * | 2017-05-27 | 2017-08-11 | 太重集团榆次液压工业有限公司 | A kind of rotating multi-channel valve with pressurize protecting against shock |
| CN107790643A (en) * | 2017-09-29 | 2018-03-13 | 吴江市液铸液压件铸造有限公司 | A kind of multi-way valve body liquid casts hydraulic part |
| WO2019099721A1 (en) * | 2017-11-15 | 2019-05-23 | Oil States Industries, Inc. | Adjustment tool for pressurized vessels |
-
2013
- 2013-01-21 CN CN 201320031213 patent/CN203036009U/en not_active Expired - Lifetime
Cited By (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103939641A (en) * | 2013-01-21 | 2014-07-23 | 克拉玛依市金牛信泰石油设备有限公司 | Multiway valve |
| WO2014110888A1 (en) * | 2013-01-21 | 2014-07-24 | 克拉玛依市金牛信泰石油设备有限公司 | Multi-way valve |
| CN103615574A (en) * | 2013-11-29 | 2014-03-05 | 中国铁建重工集团有限公司 | Reversing valve device |
| CN103615574B (en) * | 2013-11-29 | 2016-06-15 | 中国铁建重工集团有限公司 | Change-over valve device |
| EP3156702A4 (en) * | 2014-06-10 | 2017-04-26 | Kelamayi King-Bull Infortec Petroleum Equipment Co. Ltd | Valve seat ring and multi-way valve having valve seat ring |
| WO2015188452A1 (en) * | 2014-06-10 | 2015-12-17 | 克拉玛依市金牛信泰石油设备有限公司 | Valve seat ring and multi-way valve having valve seat ring |
| US9958074B2 (en) | 2014-06-10 | 2018-05-01 | Kelamayi King-Bull Infortec Petroleum Equipment Co., Ltd. | Valve seat ring and multi-way valve having valve seat ring |
| RU2635746C1 (en) * | 2014-06-10 | 2017-11-15 | Карамай Кинг-Булл Инфортек Петролеум Эквипмент Ко., Лтд. | Valve seat ring and multi-way valve having valve seat ring |
| RU2657037C1 (en) * | 2015-02-04 | 2018-06-08 | Уху Кинг-Булл Инфортек Петролеум Эквипмент Ко., Лтд | Multi-way valve |
| CN105987200B (en) * | 2015-02-04 | 2019-08-06 | 芜湖金牛信泰石油设备有限公司 | Multi-way valve |
| WO2016123845A1 (en) * | 2015-02-04 | 2016-08-11 | 芜湖金牛信泰石油设备有限公司 | Multi-way valve |
| CN105987200A (en) * | 2015-02-04 | 2016-10-05 | 芜湖金牛信泰石油设备有限公司 | Multi-way valve |
| CN104613037B (en) * | 2015-02-04 | 2016-03-16 | 芜湖金牛信泰石油设备有限公司 | Multi-way valve and multi-way valve sled thereof |
| CN104613037A (en) * | 2015-02-04 | 2015-05-13 | 芜湖金牛信泰石油设备有限公司 | Multiple unit valve and multiple unit valve skid |
| US10041599B2 (en) | 2015-02-04 | 2018-08-07 | Wuhu King-Bull Infortec Petroleum Equipment Co., Ltd. | Multi-way valve and multi-way valve skid thereof |
| DE112015006109B4 (en) | 2015-02-04 | 2018-08-16 | Kelamayi King-Bull Infortec Petroleum Equipment Co., Ltd. | Multi-way valve and multi-way valve construction of this |
| DE112015006106B4 (en) | 2015-02-04 | 2022-11-03 | Kelamayi King-Bull Infortec Petroleum Equipment Co., Ltd. | multi-way valve |
| US10323756B2 (en) | 2015-02-04 | 2019-06-18 | Wuhu King-Bull Infortec Petroleum Equipment Co., Ltd. | Multi-way valve |
| CN107035738A (en) * | 2017-05-27 | 2017-08-11 | 太重集团榆次液压工业有限公司 | A kind of rotating multi-channel valve with pressurize protecting against shock |
| CN107035738B (en) * | 2017-05-27 | 2018-04-17 | 太重集团榆次液压工业有限公司 | A kind of rotating multi-channel valve with pressurize protecting against shock |
| CN107790643A (en) * | 2017-09-29 | 2018-03-13 | 吴江市液铸液压件铸造有限公司 | A kind of multi-way valve body liquid casts hydraulic part |
| WO2019099721A1 (en) * | 2017-11-15 | 2019-05-23 | Oil States Industries, Inc. | Adjustment tool for pressurized vessels |
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