CN110107705A - A kind of gate valve seat and the knife gate valve using it - Google Patents
A kind of gate valve seat and the knife gate valve using it Download PDFInfo
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- CN110107705A CN110107705A CN201910490518.0A CN201910490518A CN110107705A CN 110107705 A CN110107705 A CN 110107705A CN 201910490518 A CN201910490518 A CN 201910490518A CN 110107705 A CN110107705 A CN 110107705A
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- valve body
- gate valve
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- 239000000872 buffer Substances 0.000 claims abstract description 36
- 238000009434 installation Methods 0.000 claims abstract description 24
- 230000000694 effects Effects 0.000 claims abstract description 18
- 238000007789 sealing Methods 0.000 claims abstract description 7
- 230000002787 reinforcement Effects 0.000 claims abstract description 5
- 238000011144 upstream manufacturing Methods 0.000 claims description 45
- 239000012530 fluid Substances 0.000 claims description 5
- 229920002943 EPDM rubber Polymers 0.000 claims description 3
- 230000003139 buffering effect Effects 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 9
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 230000003319 supportive effect Effects 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 abstract description 2
- 238000010276 construction Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 230000001360 synchronised effect Effects 0.000 description 3
- 239000007787 solid Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/02—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor
- F16K3/0281—Guillotine or blade-type valves, e.g. no passage through the valve member
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/30—Details
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Details Of Valves (AREA)
- Sliding Valves (AREA)
Abstract
The invention discloses a kind of gate valve seat and using its knife gate valve, belong to valve technology field, solves the problems, such as that traditional gate valve sealing performance is poor, installation is illusive.It include mainly two sub- valve seats, sub- valve seat includes annular body, circumferentially opens up buffer groove along annular body in annular body, and buffer groove, which extends to annular body upper surface and penetrates through annular body upper surface, constitutes installation groove；Tail trimmer being spaced apart in buffer groove equipped with several, playing reinforcement effect, annular body is interior to be equipped with the becket to play a supportive role；It further include the knife gate valve using the valve seat.Structure of the invention is ingenious in design, and ingenious ground structure design, assembly relation is simple, and valve body is simple, easy to operate with valve seat assembling process, is conducive to the production efficiency for improving knife gate valve；Practicability is very strong, synchronizes the two large problems for solving traditional gate valve leakproofness and assembly relation, is of great significance in gate valve technical field.
Description
Technical field
The invention belongs to valve technology fields, specifically, more particularly to a kind of smart structural design, sealing performance very
By force, the gate valve seat that valve body and valve seat assembly are secured, valve body and valve seat assembling process are simple and easy and the knife gate valve using it.
Background technique
Knife gate valve is also known as knife gate valve, knife door lock valve, Parallel Slide Valves, mud valve, its opening and closing element is flashboard, the movement of flashboard
Direction is perpendicular with flow direction, cuts off medium by knife-edge flashboard.Knife gate valve mainly include valve body, closure member, valve rod,
Valve seat, valve body have a lumen, are in the upstream circulation passage and a downstream circulation passage of lumen two sides respectively, one perpendicular to
Upstream and downstream circulation passage axis, the valve rod mounting groove that penetrates through with the lumen of valve body, the valve body in the circulation passage of upstream is upstream
Valve body, the valve body in the circulation passage of downstream are downstream valve body；Closure member has the outer surface of plane, is placed in the lumen of valve body
In, and the sliding and running of straight line can be made relative to valve body, for open and close or reconcile the flow for flowing through the fluid of valve, pressure or
Temperature；The lower end of valve rod passes through the valve rod mounting groove of valve body, extend into the lumen of valve body, is connected with the top of closure member, separately
One end is exposed outside valve body, and the device with driving valve is connected.Wherein, the design of valve seat is very crucial, structure design
Well determine the airtight performance of entire knife gate valve.Traditional valve seat is to guarantee sufficient intensity, prevent from impacting lower valve base in closure member
It is deformed, is solid construction by seat design；Then groove is opened up in valve body inner sidewall, valve seat is filled in the groove；
This is also the assembly relation of valve seat and valve body simultaneously.This knife gate valve of tradition studies carefully its original it is easy to appear dielectric leakage phenomenon
Because being that during moving downward, be oppositely arranged two sub- valve seats are strutted for closure member, the meeting on this impact process neutron valve seat
Larger stress is generated, the stress can not be discharged inside the valve seat of solid construction design, stress transfer causes son to sub- valve seat end face
Gap is generated between valve seat inner side end and closure member, generates leakage phenomenon so as to cause knife gate valve.In addition, traditional valve seat and valve
Body assembly is not firm, and valve seat is laterally filled in the groove on body wall, and valve seat dismounts Impact direction and flow direction of medium phase
Together or on the contrary, so the influence elastic on the assembly of valve seat of the flowing pressure of medium is very big, in the situation that media flow pressure is larger
There is the risk being flushed away in one of them lower sub- valve seat.
Summary of the invention
The purpose of the present invention is in view of the deficienciess of the prior art, providing a kind of smart structural design, sealing performance
Very strong, valve body and valve seat assemble the gate valve seat of secured, valve body and the simply easy type of valve seat assembling process and the blade type lock using it
Valve.
The present invention is achieved by the following technical solutions:
A kind of gate valve seat, the valve seat is a pair of of the sealing pair being made of two completely identical in structure sub- valve seats, described
Sub- valve seat includes annular body, circumferentially opens up buffer groove along the annular body in the annular body, and the buffering is recessed
Slot, which extends to the annular body upper surface and penetrates through the annular body upper surface, constitutes installation groove；The buffer groove
Interior tail trimmer being spaced apart equipped with several, playing reinforcement effect；The metal to play a supportive role is equipped in the annular body
Ring.
Preferably, the two ends of the tail trimmer are fixed on the inner sidewall of the buffer groove, the bottom of the tail trimmer
End is fixed on the bottom surface of the buffer groove.
Preferably, the buffer groove is in inverted ladder shape, and interior upper angle is right angle；The interior upper angle of the becket is also straight
Angle, upper angle and the interior upper angle of the buffer groove fit closely in the becket.
Preferably, the central axis of the tail trimmer is parallel with the central axis of the sub- valve seat 1.
Preferably, the tail trimmer is along the circumferential uniform equal titles distribution of the buffer groove.
Preferably, the upper surface of the sub- valve seat and the junction of its inner side end are designed for chamfering structure.
Preferably, the inner side end of the sub- valve seat is in heaving of the sea shape.
Preferably, the material of the valve seat is EPDM.
A kind of knife gate valve, including valve body, closure member, valve rod；
The valve body has a lumen, and a upstream circulation passage and the downstream circulation for being in the lumen two sides respectively are logical
Road, a valve rod mounting groove penetrated through perpendicular to upstream and downstream circulation passage axis and the valve body lumen, the upstream circulation
Valve body in channel is upstream valve body, and the valve body in the downstream circulation passage is downstream valve body；
The outer surface of the closure member is plane, is placed in the lumen of the valve body, and can make relative to the valve body
The sliding and running of straight line, for opening and closing or reconciling the flow for flowing through the fluid of valve, pressure or temperature；
The lower end of the valve rod passes through the valve rod mounting groove of the valve body, extend into the lumen of the valve body, and described
The top of closure member is connected, and the other end exposes outside the valve body, and the device with the driving valve is connected；The blade type lock
Valve applies above-mentioned gate valve seat；
The sub- valve seat being securely fitted in the upstream valve body is upstream valve seat, is securely fitted in the downstream valve body
Sub- valve seat is downstream valve seat, and the upstream valve seat is oppositely arranged with the downstream valve body inner side end；
The protruding ring to match with the installation groove of the upstream valve seat is fixed in the upstream valve body, on described
The protruding ring under the tension force effect of valve seat is swum to be connected in the installation groove；
The protruding ring to match with the installation groove of the downstream valve seat is fixed in the downstream valve body, under described
The protruding ring under the tension force effect of valve seat is swum to be connected in the installation groove.
Compared with prior art, the beneficial effects of the present invention are:
Structure of the invention is ingenious in design, and ingenious ground structure design is synchronous on the basis of guaranteeing valve seat construction intensity to realize height
Leakproofness and firm assembly relation；It is excessive that the Synchronization Design of buffer groove and becket had both effectively released opening and closing element bring
Stress, and the structural strength of valve seat has been effectively ensured, opening and closing element can generate biggish impact force in dropping process, metalwork
Effect is exactly to fight the impact force, prevents the impact force from causing deformation to valve seat；Valve seat dismounting Impact direction and medium of the present invention
Flowing pressure direction is perpendicular, that is, media flow pressure does not interfere with the assembly relation of valve seat and valve body, valve seat at all
Assembly relation between valve body is very secured；
Assembly relation of the present invention is simple, and valve body is simple, easy to operate with valve seat assembling process, is conducive to improve knife gate valve
Production efficiency；
Practicability of the present invention is very strong, the two large problems for solving traditional gate valve leakproofness and assembly relation is synchronized, in gate valve
Technical field is of great significance.
Detailed description of the invention
Fig. 1 is the sub- valve seat construction schematic diagram of gate valve seat of the present invention；
Fig. 2 is Figure 1A-A sectional view of the present invention；
Fig. 3 is Fig. 1 partial enlarged view of the present invention；
Fig. 4 is knife gate valve structural schematic diagram of the present invention；
Fig. 5 is left direction structural schematic diagram of the present invention；
Fig. 6 is right direction structural schematic diagram of the present invention.
In figure: 1. sub- valve seats；2. annular body；3. buffer groove；4. installation groove；5. tail trimmer；6. becket；In 7.
Side end face；8. chamfering structure；9. closure member；10. valve rod；11. upstream valve body；12. downstream valve body；13. upstream valve seat；Under 14.
Swim valve seat；15. protruding ring.
Specific embodiment
The following further describes the present invention with reference to the drawings:
A kind of gate valve seat, the valve seat is a pair of of the sealing pair being made of two completely identical in structure sub- valve seats 1, described
Sub- valve seat 1 includes annular body 2, circumferentially opens up buffer groove 3 along the annular body 2 in the annular body 2, described slow
Groove 3 is rushed to extend to 2 upper surface of annular body and penetrate through 2 upper surface of the annular body composition installation groove 4；It is described
Tail trimmer 5 being spaced apart in buffer groove 3 equipped with several, playing reinforcement effect；Support has been equipped in the annular body 2
The becket 6 of effect.
Preferably, the two ends of the tail trimmer 5 are fixed on the inner sidewall of the buffer groove 3, the tail trimmer 5
Bottom end is fixed on the bottom surface of the buffer groove 3.The design of tail trimmer 5 is in order to increase the structural strength of valve seat.
Preferably, the buffer groove 3 is in inverted ladder shape, and interior upper angle is right angle；The interior upper angle of the becket 6 is also
Right angle, upper angle and the interior upper angle of the buffer groove 3 fit closely in the becket 6.Structure design is conducive to becket will
Its effect for increasing intensity performs to maximum.
Preferably, the central axis of the tail trimmer 5 is parallel with the central axis of the sub- valve seat 1.The design of this structure
The effect for being increased intensity conducive to tail trimmer performs to maximum.
Preferably, the tail trimmer 5 is along the circumferential uniform equal titles distribution of the buffer groove 3.It is uniformly distributed so that sub- valve seat
Structure is well-balanced.
Preferably, the upper surface of the sub- valve seat 1 and the junction of its inner side end 7 are the design of chamfering structure 8.Chamfering is set
It has been calculated as reducing the resistance that opening and closing element falls, has prevented resistance excessive, close failure.
Preferably, the inner side end 7 of the sub- valve seat 1 is in heaving of the sea shape.On the one hand wave structure design can increase
On the other hand the airtight performance of product reduces opening and closing element whereabouts resistance, product fortune on the basis of not influencing valve seat airtight performance
Flexibly, user's usage comfort is high for row.
Preferably, the material of the valve seat is EPDM.
A kind of knife gate valve, including valve body, closure member 9, valve rod 10；The valve body has a lumen, is in respectively described
A upstream circulation passage and a downstream circulation passage for lumen two sides, one perpendicular to upstream and downstream circulation passage axis, with it is described
The valve rod mounting groove of the lumen perforation of valve body, the valve body in the upstream circulation passage are upstream valve body 11, the downstream circulation
Valve body in channel is downstream valve body 12；
The outer surface of the closure member 9 is plane, is placed in the lumen of the valve body, and can make relative to the valve body
The sliding and running of straight line, for opening and closing or reconciling the flow for flowing through the fluid of valve, pressure or temperature；
The lower end of the valve rod 10 passes through the valve rod mounting groove of the valve body, extend into the lumen of the valve body, with institute
The top for stating closure member 9 is connected, and the other end exposes outside the valve body, and the device with the driving valve is connected；The knife
Type gate valve applies gate valve seat described in claim 1 to 8 any one claim；
The sub- valve seat 1 being securely fitted in the upstream valve body 11 is upstream valve seat 13, is securely fitted in the downstream valve
Sub- valve seat 1 on body 12 is downstream valve seat 14, and the upstream valve seat 13 is oppositely arranged with 12 inner side end 7 of downstream valve body；
The protruding ring 15 to match with the installation groove 4 of the upstream valve seat 13 is fixed in the upstream valve body 11,
The protruding ring 15 is connected in the installation groove 4 under the tension force effect of the upstream valve seat 13；
The protruding ring 15 to match with the installation groove 4 of the downstream valve seat 14 is fixed in the downstream valve body 12,
The protruding ring 15 is connected in the installation groove 4 under the tension force effect of the downstream valve seat 14.
Embodiment 1:
A kind of knife gate valve, including valve body, closure member 9, valve rod 10；Valve body has a lumen, is in lumen two sides respectively
A upstream circulation passage and a downstream circulation passage, one perpendicular to upstream and downstream circulation passage axis, the lumen with valve body passes through
Logical valve rod mounting groove, the valve body in the circulation passage of upstream are upstream valve body 11, and the valve body in the circulation passage of downstream is downstream valve
Body 12；The outer surface of closure member 9 is plane, is placed in the lumen of valve body, and can make the sliding and running of straight line relative to valve body,
For opening and closing or reconciling the flow for flowing through the fluid of valve, pressure or temperature；The valve rod that the lower end of valve rod 10 passes through valve body is pacified
Tankage is extend into the lumen of valve body, is connected with the top of closure member 9, and the other end exposes outside valve body, with driving valve
Device is connected.
The knife gate valve of the present embodiment applies a kind of gate valve seat；The valve seat is by two completely identical in structure sub- valve seats
1 a pair of of the sealing pair constituted, sub- valve seat 1 include annular body 2, and along annular body 2, circumferential to open up buffering recessed in annular body 2
Slot 3, buffer groove 3, which extends to 2 upper surface of annular body and penetrates through 2 upper surface of annular body, constitutes installation groove 4；It buffers recessed
Tail trimmer 5 being spaced apart in slot 3 equipped with several, playing reinforcement effect；The two ends of tail trimmer 5 are fixed in buffer groove 3
Inner sidewall on, the bottom end of tail trimmer 5 is fixed on the bottom surface of buffer groove 3, the central axis of tail trimmer 5 and sub- valve seat 1
Central axis is parallel, and tail trimmer 5 is along the circumferential uniform equal titles distribution of buffer groove 3；The upper surface of sub- valve seat 1 and its inner side end
7 junction is the design of chamfering structure 8；The becket 6 to play a supportive role is equipped in annular body 2.It is securely fitted in upstream valve
Sub- valve seat 1 on body 11 is upstream valve seat 13, and the sub- valve seat 1 being securely fitted in downstream valve body 12 is downstream valve seat 14, upstream
Valve seat 13 is oppositely arranged with 12 inner side end 7 of downstream valve body；It is fixed in upstream valve body 11 recessed with the installation of upstream valve seat 13
The protruding ring 15 that slot 4 matches, the protruding ring 15 is connected in installation groove 4 under the tension force effect of upstream valve seat 13；Under
It is fixed with the protruding ring 15 to match with the installation groove 4 of downstream valve seat 14 on trip valve body 12, in the tension of downstream valve seat 14
The lower protruding ring 15 is acted on to be connected in installation groove 4.
Synchronous realization on the basis of guaranteeing valve seat construction intensity with the Synchronization Design of becket of the present embodiment buffer groove
High leakproofness and firm assembly relation；
In terms of airtightness, buffer groove and installation groove have given valve seat stress release space, have been released effectively opening and closing element
Bring excessive stresses, stress are released, would not also make sub- valve seat inner side end stress excessive and opening and closing element generate between
Gap, airtight performance are very good；
The structural strength of valve seat has then been effectively ensured in the becket being hidden in buffer groove；Opening and closing element is in dropping process
Biggish impact force can be generated, the effect of metalwork is exactly to fight the impact force, prevents the impact force from causing deformation to valve seat；
Meanwhile the present embodiment valve seat dismounting Impact direction and media flow pressure direction are perpendicular, that is, media flow
Pressure does not interfere with the assembly relation of valve seat and valve body at all, and the assembly relation between valve seat and valve body is very secured.
The present embodiment smart structural design, ingenious ground structure design, assembly relation is simple, valve body and the letter of valve seat assembling process
It is single, easy to operate, be conducive to the production efficiency for improving knife gate valve；Practicability is very strong, synchronize solve traditional gate valve leakproofness with
The two large problems of assembly relation are of great significance in gate valve technical field.
Embodiment 2:
Buffer groove 3 is in inverted ladder shape to the present embodiment on the basis of embodiment 1, and interior upper angle is right angle；Becket 6
Interior upper angle is also right angle, and upper angle and the interior upper angle of buffer groove 3 fit closely in becket 6.Structure design is conducive to becket
The effect for being increased intensity performs to maximum.This embodiment example valve seat is to be pre-placed becket 6, reinjects the shape that is in a liquid state
The raw material of state, resolidification molding.
The inner side end 7 of this embodiment example valve seat 1 is in heaving of the sea shape.On the one hand wave structure design can increase product
Airtight performance, on the other hand on the basis of not influencing valve seat airtight performance reduce opening and closing element whereabouts resistance, product operation spirit
Living, user's usage comfort is high.
To sum up, only presently preferred embodiments of the present invention is not used to limit the scope of implementation of the present invention, Fan Yibenfa
Equivalent changes and modifications carried out by the shape of bright scope of the claims, construction, feature and spirit, should be included in power of the invention
In sharp claimed range.
Claims (9)
1. a kind of gate valve seat, the valve seat is a pair of of the sealing pair being made of two completely identical in structure sub- valve seats, feature
Be: the sub- valve seat includes annular body, circumferentially opens up buffer groove along the annular body in the annular body, institute
Buffer groove is stated to extend to the annular body upper surface and penetrate through the annular body upper surface composition installation groove；It is described
Tail trimmer being spaced apart in buffer groove equipped with several, playing reinforcement effect；Support has been equipped in the annular body to make
Becket.
2. gate valve seat according to claim 1, it is characterised in that: it is recessed that the two ends of the tail trimmer are fixed in the buffering
On the inner sidewall of slot, the bottom end of the tail trimmer is fixed on the bottom surface of the buffer groove.
3. gate valve seat according to claim 1 or claim 2, it is characterised in that: the buffer groove is in inverted ladder shape, interior upper angle
For right angle；The interior upper angle of the becket is also right angle, and upper angle and the interior upper angle of the buffer groove are close in the becket
Fitting.
4. gate valve seat according to claim 3, it is characterised in that: the central axis of the tail trimmer and the sub- valve seat
Central axis is parallel.
5. gate valve seat according to claim 4, it is characterised in that: the tail trimmer is circumferentially uniform etc. along the buffer groove
Claim distribution.
6. gate valve seat according to claim 3, it is characterised in that: the upper surface of the sub- valve seat and its inner side end
It is designed for chamfering structure junction.
7. gate valve seat according to claim 3, it is characterised in that: the inner side end of the sub- valve seat is in heaving of the sea
Shape.
8. gate valve seat according to claim 1, it is characterised in that: the material of the valve seat is EPDM.
9. a kind of knife gate valve, including valve body, closure member, valve rod；
The valve body has a lumen, is in the upstream circulation passage and a downstream circulation passage of the lumen two sides respectively,
The one valve rod mounting groove penetrated through perpendicular to upstream and downstream circulation passage axis and the valve body lumen, the upstream flow is all
Valve body in road is upstream valve body, and the valve body in the downstream circulation passage is downstream valve body；
The outer surface of the closure member is plane, is placed in the lumen of the valve body, and can make straight line relative to the valve body
Sliding and running, for opening and closing or reconciling the flow for flowing through the fluid of valve, pressure or temperature；
The lower end of the valve rod passes through the valve rod mounting groove of the valve body, extend into the lumen of the valve body, with the closing
The top of part is connected, and the other end exposes outside the valve body, and the device with the driving valve is connected；It is characterized by: institute
It states knife gate valve and applies gate valve seat described in claim 1 to 8 any one claim；
The sub- valve seat being securely fitted in the upstream valve body is upstream valve seat, the sub- valve being securely fitted in the downstream valve body
Seat is downstream valve seat, and the upstream valve seat is oppositely arranged with the downstream valve body inner side end；
The protruding ring to match with the installation groove of the upstream valve seat is fixed in the upstream valve body, in the upstream valve
The protruding ring is connected in the installation groove under the tension force effect of seat；
The protruding ring to match with the installation groove of the downstream valve seat is fixed in the downstream valve body, in the downstream valve
The protruding ring is connected in the installation groove under the tension force effect of seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910490518.0A CN110107705B (en) | 2019-06-06 | 2019-06-06 | Gate valve seat and knife gate valve using same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910490518.0A CN110107705B (en) | 2019-06-06 | 2019-06-06 | Gate valve seat and knife gate valve using same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110107705A true CN110107705A (en) | 2019-08-09 |
| CN110107705B CN110107705B (en) | 2024-04-09 |
Family
ID=67494104
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910490518.0A Active CN110107705B (en) | 2019-06-06 | 2019-06-06 | Gate valve seat and knife gate valve using same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110107705B (en) |
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| US20110114863A1 (en) * | 2008-06-26 | 2011-05-19 | Flowserve Management Company | Butterfly Valve, Valve Seat and Valve Seat Retainer |
| CN201575145U (en) * | 2009-11-27 | 2010-09-08 | 盂县中信焦化有限公司 | Smoke abatement and dust removing sealing gasket for coke oven |
| CN202432016U (en) * | 2012-01-17 | 2012-09-12 | 厦门市福新源卫浴有限公司 | Faucet structure |
| CN203685411U (en) * | 2013-12-27 | 2014-07-02 | 岱山县奥赛密封件厂 | Exhaust pipe gasket |
| CN204083294U (en) * | 2014-09-15 | 2015-01-07 | 浙江求精泵阀制造有限公司 | Gate valve |
| CN108071799A (en) * | 2016-11-17 | 2018-05-25 | 天津市忠利天成阀门有限公司 | A kind of corrosion-resistant seal washer of composite |
| CN206682296U (en) * | 2017-03-21 | 2017-11-28 | 青岛强龙电力石化配件有限公司 | Shelving sealing ring |
| KR20180129145A (en) * | 2017-05-25 | 2018-12-05 | 피피아이평화 주식회사 | Packing for pipe sealing and pipe assembly having the same |
| CN107152548A (en) * | 2017-06-04 | 2017-09-12 | 江苏圣迪德智能科技有限公司 | A kind of industrial pipeline antirust valve |
| CN210128090U (en) * | 2019-06-06 | 2020-03-06 | 泰州市百冠泵阀科技有限公司 | Gate valve disk seat and use its sword type gate valve |
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| CN110107705B (en) | 2024-04-09 |
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