CN104401919B - A kind of filling valve - Google Patents
A kind of filling valve Download PDFInfo
- Publication number
- CN104401919B CN104401919B CN201410682746.5A CN201410682746A CN104401919B CN 104401919 B CN104401919 B CN 104401919B CN 201410682746 A CN201410682746 A CN 201410682746A CN 104401919 B CN104401919 B CN 104401919B
- Authority
- CN
- China
- Prior art keywords
- pedestal
- reducing
- sealing shroud
- blocked shot
- place
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
- B67C—CLEANING, FILLING WITH LIQUIDS OR SEMILIQUIDS, OR EMPTYING, OF BOTTLES, JARS, CANS, CASKS, BARRELS, OR SIMILAR CONTAINERS, NOT OTHERWISE PROVIDED FOR; FUNNELS
- B67C3/00—Bottling liquids or semiliquids; Filling jars or cans with liquids or semiliquids using bottling or like apparatus; Filling casks or barrels with liquids or semiliquids
- B67C3/02—Bottling liquids or semiliquids; Filling jars or cans with liquids or semiliquids using bottling or like apparatus
- B67C3/22—Details
- B67C3/28—Flow-control devices, e.g. using valves
-
- 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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The invention provides a kind of filling valve, comprise valve body and blocked shot, valve body has inner chamber, valve body has reducing in inner chamber one end, blocked shot is arranged in inner chamber, blocked shot is provided with poted assemblies, poted assemblies comprises pedestal and is wrapped in the sealing shroud outside pedestal, the sidepiece of pedestal is provided with some around the pedestal circumference annular dovetail slot of a week, sealing shroud is provided with at corresponding annular dovetail slot place the annular protrusion embedded in annular dovetail slot, the external diameter of pedestal is reducing to make the outside wall surface of pedestal form taper anchor ring at this place near one end place of blocked shot with at one end place of close reducing all gradually, two conical ring faces are symmetrical arranged and all in the scope that sealing shroud wraps up, taper anchor ring near one end place of reducing is parallel to the wall of valve body in reducing place, the external diameter of sealing shroud at two taper anchor ring places also reduces to form reduction section gradually.The present invention seals tight, can not produce leakage, and poted assemblies is installed, convenient disassembly, long service life.
Description
Technical field
The present invention relates to the filling valve on a kind of filling apparatus.
Background technology
Filling valve comprises valve body 1 and blocked shot 2, it is inner that blocked shot 2 is positioned at valve body 1, the mode contacted with face by face between blocked shot 2 with valve body 1 forms liquid sealing annexation, and as shown in Figure 8, valve body 1 is positioned at the connecting portion of blocked shot 2 this end that valve body 1 is provided with discharging opening to its structure; Liquid sealing connection structure described here is made up of the sphere of the sphere on blocked shot, valve inner, and the radius of two spheres is different, therefore forms the connection mode of linear contact lay after contact.Sphere between two different radiis contacts with each other and forms the relation of line connection, and reaches seal request with this, higher to the processing request of sphere; In addition, require harsh to the setting accuracy of blocked shot, if the centre of sphere of two spheres has the situation of the line of centers deviating from blocked shot, the connection tightness degree so between two spheres presents difference at different parts.Just because of this, it is not tight that the filling valve of actual production and processing gained there will be liquid sealing, there is the situation of leakage.
Summary of the invention
Technical matters to be solved by this invention improves existing filling valve to there will be the situation that liquid sealing is not tight, there is leakage, and object is to provide a kind of filling valve, and sealing shroud and pedestal are connected firmly, seal tight, leakage can not be produced, poted assemblies installation, convenient disassembly, long service life.
For solving above-mentioned existing technical matters, the present invention adopts following scheme: a kind of filling valve, comprise valve body and blocked shot, described valve body has inner chamber, described valve body to diminish formation reducing gradually at inner chamber one end place internal diameter, described blocked shot is arranged in inner chamber, described blocked shot is provided with poted assemblies towards one end of reducing, described poted assemblies comprises pedestal and parcel and the sealing shroud be attached to outside pedestal, the sidepiece of described pedestal the part that wraps by sealing shroud is provided with some around the pedestal circumference annular dovetail slot of a week, described annular dovetail slot sets gradually along the axis of pedestal, described sealing shroud is provided with at corresponding annular dovetail slot place the annular protrusion embedded in annular dovetail slot, along pedestal axially from the middle part of pedestal to blocked shot with to the direction that reducing extends, the external diameter of described pedestal is reducing to make the outside wall surface of pedestal form taper anchor ring at this place near one end place of blocked shot with at one end place of close reducing all gradually, two conical ring faces are symmetrical arranged and all in the scope that sealing shroud wraps up, taper anchor ring near one end place of reducing is parallel to the wall of valve body in reducing place, the external diameter of described sealing shroud at two taper anchor ring places also reduces to form reduction section gradually, described poted assemblies to be contacted at the wall of reducing place by its outside face and valve body near the reduction section of reducing one end and realizes coordinating with valve seal.
The effect of annular dovetail slot is fixing seal cover, arch up when preventing the sealing shroud at this place to be out of shape and reduction of service life, allow after sealing shroud and valve body contact position distortions and have more position to be fitted on sealing surface.By the working position by poted assemblies---the position that namely on sealing shroud, reduction section and valve body contact seal is arranged on taper anchor ring place, can reduce the deflection of sealing shroud at this position and controlling distortion direction, can extend the service life of sealing shroud.After sealing shroud arranges two reduction section, poted assemblies two ends are capable of reversing, the replaceable use in poted assemblies two ends; Taper anchor ring is for limiting the position of sealing shroud and controlling the deformation direction of sealing shroud at this position; Sealing shroud is attached on pedestal, as sealing shroud by adhesion, that deadlocked and Shooting Technique is directly injection-moulded in pedestal is first-class, make between sealing shroud and pedestal, to form compact siro spinning technology relation, unless under stripping state, otherwise sealing shroud can not opposite base generation relative motion, sealing shroud good fixing effect.In the present invention, the outside face of reduction section adopts sphere, and can be the face identical with spherome surface, also can be the level and smooth cambered surface being similar to spherome surface.
As preferably, described pedestal is arranged on blocked shot by bolt, described pedestal is provided with cushion block towards between one end and bolt of reducing, described cushion block is provided with around pedestal second annular lip of a week towards the side place of pedestal, the taper anchor ring that the medial surface of the second annular lip is nearest with distance the second annular lip parallels, and described sealing shroud is clipped between the second annular lip and pedestal towards one end of cushion block.After cushion block is set, by cushion block, the bottom of sealing shroud is pressed in pedestal, can reduce on the one hand installing and the distortion of the sealing shroud that bolt and sealing shroud spin friction cause in use procedure, slow down continuous distortion in sealing shroud Reusability process and peel off between the bottom part sealing shroud that causes and pedestal; By arranging the second annular lip on cushion block, and Parallel Design can be adopted by between the second annular lip and the taper anchor ring nearest apart from the second annular lip on the other hand, the deformation direction of sealing shroud can be controlled further.
As preferably, described blocked shot is provided with around pedestal first annular lip of a week towards one end end face of pedestal, the taper anchor ring that the medial surface of described first annular lip is nearest with distance the first annular lip parallels, and described sealing shroud is clipped between the first annular lip and pedestal towards one end of blocked shot.
As preferably, described annular dovetail slot is three, three annular dovetail slots are equally spaced along the axis of pedestal, one of them taper anchor ring be located at annular dovetail slot in the middle part of pedestal and between the annular dovetail slot of pedestal one end, another taper anchor ring is located at annular dovetail slot in the middle part of pedestal and between the annular dovetail slot of the pedestal other end.Three annular dovetail slots and two taper anchor rings spaced apart, locating effect is better.
As preferably, described blocked shot is provided with the first circular groove towards one end end face of pedestal, and described pedestal stretches into the first circular groove towards one end of blocked shot and is radially positioned in the first circular groove.
As preferably, described cushion block is provided with the second circular groove towards one end end face of pedestal, and described pedestal stretches into the second circular groove towards one end of cushion block and is positioned in the second circular groove.
As preferably, be sealed and matched between described cushion block and the bolt cap of bolt.
Beneficial effect:
A kind of filling valve that the present invention adopts technique scheme to provide, by arranging annular dovetail slot on pedestal, arranging the annular protrusion corresponding with annular dovetail slot at sealing shroud inwall, sealing shroud can firmly be connected on pedestal; By arranging the second annular lip on cushion block, the taper anchor ring on the internal face of this second annular lip and pedestal is come together pinch seal cover, and the sealing of this filling valve is tight, does not produce leakage; The replaceable use in the upper and lower two ends of poted assemblies of this filling valve, poted assemblies is installed, convenient disassembly, long service life.
Accompanying drawing explanation
Fig. 1 is cutaway view of the present invention;
Fig. 2 is the enlarged drawing at A place in Fig. 1;
Fig. 3 is the structural representation of valve body in Fig. 2;
Fig. 4 is the structural representation of blocked shot in Fig. 2;
Fig. 5 is the structural representation of cushion block;
Fig. 6 is the schematic diagram that blocked shot, pedestal and cushion block coordinate;
Fig. 7 is the structural representation of sealing shroud;
Fig. 8 is the structural representation of existing filling valve.
Detailed description of the invention
As Fig. 1 to 7 is depicted as a kind of embodiment of a kind of filling valve of the present invention, it comprises valve body 1 and blocked shot 2, valve body 1 has inner chamber 11, valve body 1 diminishes gradually at inner chamber 11 bottom end internal diameter and forms reducing 12, the wall of reducing 12 is similar to the side of a frustum cone structure, blocked shot 2 is arranged in inner chamber 11, the bottom of blocked shot 2 is provided with poted assemblies, it wherein sealing component integration is axially symmetric structure, it sealing shroud 3 comprising pedestal 4 and be wrapped in pedestal 4 outer peripheral sidewall, pedestal 4 is arranged on blocked shot 2 by bolt, pedestal 4 has the through hole 41 running through its upper and lower two ends, the top that the stud 51 of bolt is worn to pedestal 4 from the bottom via through holes 41 of pedestal 4 is threaded with blocked shot 2, the bottom of blocked shot 2 has for the tapped bore 24 with stud 51 screw thread fit, stud 51 is arranged with cushion block 6, cushion block 6 is clipped between the bolt cap 52 of pedestal 4 and bolt, top and the blocked shot 2 of pedestal 4 offset, the bottom end face of blocked shot 2 is provided with around pedestal first annular lip 21 of 4 one weeks, sealing shroud 3 top is clipped between the first annular lip 21 and pedestal 4, the top end face of cushion block 6 is provided with around pedestal second annular lip 61 of 4 one weeks, sealing shroud 3 bottom is clipped between the second annular lip 61 and pedestal 4.
On the direction extended from the middle part of pedestal 4 to blocked shot 2 along the axis of pedestal 4, the external diameter of pedestal 4 reduces at one end place near blocked shot 2 to make the outside wall surface of pedestal 4 form taper anchor ring 43 at this place gradually; On the direction extended from the middle part of pedestal 4 to reducing 12 along the axis of pedestal 4, the external diameter of pedestal 4 reduces to make the outside wall surface of pedestal 4 also form taper anchor ring 43 at this place at one end place near reducing 12 all gradually.Two taper anchor rings 43 are symmetrical arranged and all in the scope that sealing shroud 3 wraps up, taper anchor ring 43 near one end place of reducing 12 is parallel at the internal face at reducing 12 place with valve body, the external diameter of sealing shroud 3 at two taper anchor ring 43 places also reduces to form reduction section 31 gradually, poted assemblies to be contacted at the wall of reducing place by its outside face and valve body near the reduction section 31 of reducing 12 one end and realizes coordinating with valve seal, the position that the outside face of reduction section 31 coordinates with valve seal is sphere, be convenient to better contact to make sealing effectiveness better at the wall at reducing 12 place with valve body.
Blocked shot 2 is provided with around pedestal first annular lip 21 of a week towards one end end face of pedestal 4, the taper anchor ring 43 that the medial surface of the first annular lip 21 is nearest with distance the first annular lip 21 parallels, and sealing shroud 3 is clipped between the second annular lip 61 and pedestal 4 towards one end of blocked shot 2.Cushion block 6 is provided with around pedestal second annular lip 61 of a week towards the side place of pedestal 4, the taper anchor ring 43 that the medial surface of the second annular lip 61 is nearest with distance the second annular lip 61 parallels, and sealing shroud 3 is clipped between the second annular lip 61 and pedestal 4 towards one end of cushion block 6.
The part that the sidepiece of pedestal 4 wraps at sealing shroud 3 have three around pedestal 4 annular dovetail slot of circumferential a week 42, three annular dovetail slots 42 are arranged successively along the axis of pedestal 4 and are equally spaced, and sealing shroud 3 inwall has the annular protrusion 33 coordinated with annular dovetail slot 42 at corresponding annular dovetail slot 42.One of them taper anchor ring 43 be located at annular dovetail slot 42 in the middle part of pedestal 4 and between the annular dovetail slot 42 of pedestal 4 one end, another taper anchor ring 43 is located at annular dovetail slot 42 in the middle part of pedestal 4 and between the annular dovetail slot 42 of pedestal 4 other end, such annular dovetail slot 42, taper anchor ring 43 interval on pedestal distribute in order, and sealing shroud can be made better to be fixed on pedestal.
The bottom surface of blocked shot 2 is provided with the first circular groove 23, the top of pedestal 4 is stretched into the first circular groove 23 and is radially positioned in the first circular groove 23, the roof of pedestal 4 and the bottom surface of the first circular groove 23 offset, the diameter of the first circular groove 23 is greater than the diameter of tapped bore 24, and the first circular groove 23 and tapped bore 24 form the structure that is similar to stepped hole; The end face of cushion block 6 is provided with the second circular groove 63, and the bottom of pedestal 4 is stretched into the second circular groove 63 and is radially positioned in the second circular groove 63, and the diapire of pedestal 4 and the bottom surface of the second circular groove 63 offset; Carry out radial location by the first circular groove 23 and the second circular groove 63 pairs of pedestals 4, the sealing effectiveness of poted assemblies can be made better.
Be sealed and matched by seal ring 7 between cushion block 6 and bolt cap 52, the bottom surface of cushion block 6 has the circular groove of accommodating seal ring 7.
In the present embodiment, sealing shroud is formed on pedestal by injection molding manner, and two taper anchor rings 43 are symmetrical structure.By the reduction section on sealing shroud is arranged on taper anchor ring place, utilizes the taper anchor ring of pedestal to reduce the deflection of sealing shroud at this position and the deformation direction of control sealing shroud, the service life of sealing shroud can be extended.The effect of annular dovetail slot is fixing seal cover, arch up when preventing the sealing shroud at this place to be out of shape and reduction of service life, allow sealing shroud and valve body after the contact site of reducing place is out of shape, have more position to be fitted on sealing surface.The object arranging the first annular lip 21 in the bottom of blocked shot and arrange the second annular lip 61 on the top of cushion block 6 is for pinch seal cover, first annular lip 21 pairs sealing shroud is formed and presses to the application force of the taper anchor ring 43 be mated, and then sealing shroud is clamped between the first annular lip 21 and taper anchor ring 43 and reaches sealing purpose with the two; Second annular lip 61 pairs sealing shroud is formed and presses to the application force of the taper anchor ring 43 be mated, and then this place's sealing shroud is clamped between the second annular lip 61 and taper anchor ring 43 and reaches sealing purpose with the two, and structure comparison is reasonable on the whole.Outside face near the reduction section 31 of reducing 12 is used for coordinating with the wall of valve body at reducing 12 place, during work, blocked shot move up and down to make under the drive of cylinder or other driver trains in valve body sealing shroud near or away from reducing 12, sealing shroud is in the process near reducing 12, the outside face of reduction section 31 is finally affixed on valve body and reaches sealing purpose between valve body and poted assemblies on the wall at reducing 12 place, sealing shroud is away from after reducing 12, valve body and poted assemblies depart from and seal, and reducing 12 is opened.
Claims (7)
1. a filling valve, comprise valve body (1) and blocked shot (2), described valve body (1) has inner chamber (11), described valve body (1) diminishes gradually at inner chamber (11) one end place internal diameter and forms reducing (12), described blocked shot (2) is arranged in inner chamber (11), described blocked shot (2) is provided with poted assemblies towards one end of reducing, it is characterized in that: described poted assemblies comprises pedestal (4) and wraps up and be attached to the sealing shroud (3) outside pedestal (4), the sidepiece of described pedestal (4) the part that wraps by sealing shroud (3) is provided with some around pedestal (4) annular dovetail slot of circumferential a week (42), described annular dovetail slot (42) sets gradually along the axis of pedestal (4), described sealing shroud (3) is provided with at corresponding annular dovetail slot (42) place the annular protrusion (33) embedded in annular dovetail slot (42), in the axis along pedestal (4) from the middle part of pedestal (4) to blocked shot (2) with to the direction that reducing (12) extends, the external diameter of described pedestal (4) is reducing to make the outside wall surface of pedestal (4) form taper anchor ring (43) at this place near one end place of blocked shot (2) with at one end place of close reducing (12) all gradually, two taper anchor rings (43) are symmetrical arranged and all in the scope that sealing shroud (3) wraps up, taper anchor ring (43) near one end place of reducing (12) is parallel to the wall of valve body at reducing (12) place, the external diameter of described sealing shroud (3) at two taper anchor ring (43) places also reduces to form reduction section (31) gradually, described poted assemblies to be contacted at the wall of reducing place by its outside face and valve body near the reduction section (31) of reducing (12) one end and realizes coordinating with valve seal.
2. a kind of filling valve according to claim 1, it is characterized in that: described pedestal (4) is arranged on blocked shot by bolt, described pedestal (4) is provided with cushion block (6) towards between one end and bolt of reducing, described cushion block (6) is provided with around pedestal second annular lip (61) of a week towards the side place of pedestal (4), the taper anchor ring (43) that the medial surface of the second annular lip (61) is nearest with distance the second annular lip (61) parallels, described sealing shroud (3) is clipped between the second annular lip (61) and pedestal (4) towards one end of cushion block (6).
3. a kind of filling valve according to claim 1, it is characterized in that: described blocked shot (2) is provided with around pedestal first annular lip (21) of a week towards one end end face of pedestal (4), the taper anchor ring (43) that the medial surface of described first annular lip (21) is nearest with distance the first annular lip (21) parallels, and described sealing shroud (3) is clipped between the first annular lip (21) and pedestal (4) towards one end of blocked shot (2).
4. a kind of filling valve according to claim 1, it is characterized in that: described annular dovetail slot (42) is three, three annular dovetail slots (42) are equally spaced along the axis of pedestal (4), one of them taper anchor ring (43) be located at be positioned at pedestal (4) middle part annular dovetail slot (42) and near pedestal (4) one end annular dovetail slot (42) between, another taper anchor ring (43) be located at be positioned at pedestal (4) middle part annular dovetail slot (42) and near pedestal (4) other end annular dovetail slot (42) between.
5. according to the arbitrary described a kind of filling valve of Claims 1-4, it is characterized in that: described blocked shot (2) is provided with the first circular groove (23) towards one end end face of pedestal, described pedestal (4) stretches into the first circular groove (23) towards one end of blocked shot (2) and is radially positioned in the first circular groove (23).
6. a kind of filling valve according to claim 2, it is characterized in that: described cushion block (6) is provided with the second circular groove (63) towards one end end face of pedestal, described pedestal (4) stretches into the second circular groove (63) towards one end of cushion block (6) and is positioned in the second circular groove (63).
7. a kind of filling valve according to claim 2, is characterized in that: be sealed and matched between the bolt cap (52) of described cushion block (6) and bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410682746.5A CN104401919B (en) | 2014-11-24 | 2014-11-24 | A kind of filling valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410682746.5A CN104401919B (en) | 2014-11-24 | 2014-11-24 | A kind of filling valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104401919A CN104401919A (en) | 2015-03-11 |
| CN104401919B true CN104401919B (en) | 2016-03-23 |
Family
ID=52639608
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410682746.5A Active CN104401919B (en) | 2014-11-24 | 2014-11-24 | A kind of filling valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104401919B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06263192A (en) * | 1993-03-11 | 1994-09-20 | Shibuya Kogyo Co Ltd | Filling valve |
| DE4325738A1 (en) * | 1993-07-31 | 1995-02-02 | Heimeier Gmbh Metall Theodor | Valve arrangement for the valve fitting of a compact radiator |
| CN101311585A (en) * | 2007-05-25 | 2008-11-26 | 费海鸿 | All-metal angle valve |
| KR20090028672A (en) * | 2007-09-15 | 2009-03-19 | 이성재 | Liquid filling device |
| CN201391613Y (en) * | 2009-02-20 | 2010-01-27 | 上海耐腐阀门集团有限公司 | Improved stop valve |
| CN101796336A (en) * | 2007-08-01 | 2010-08-04 | 欧文·韦 | Valve component |
| CN201634404U (en) * | 2009-12-24 | 2010-11-17 | 北京航天斯达新技术装备公司 | Down-insertion filling valve of weighing type filling machine |
| CN103062416A (en) * | 2012-12-24 | 2013-04-24 | 浙江中控流体技术有限公司 | Single-seat flexible seal valve device |
| CN203857120U (en) * | 2014-04-13 | 2014-10-01 | 白雪峰 | Charging valve with double seal |
| CN204312710U (en) * | 2014-11-24 | 2015-05-06 | 杭州中亚机械股份有限公司 | A kind of filling valve |
-
2014
- 2014-11-24 CN CN201410682746.5A patent/CN104401919B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06263192A (en) * | 1993-03-11 | 1994-09-20 | Shibuya Kogyo Co Ltd | Filling valve |
| DE4325738A1 (en) * | 1993-07-31 | 1995-02-02 | Heimeier Gmbh Metall Theodor | Valve arrangement for the valve fitting of a compact radiator |
| CN101311585A (en) * | 2007-05-25 | 2008-11-26 | 费海鸿 | All-metal angle valve |
| CN101796336A (en) * | 2007-08-01 | 2010-08-04 | 欧文·韦 | Valve component |
| KR20090028672A (en) * | 2007-09-15 | 2009-03-19 | 이성재 | Liquid filling device |
| CN201391613Y (en) * | 2009-02-20 | 2010-01-27 | 上海耐腐阀门集团有限公司 | Improved stop valve |
| CN201634404U (en) * | 2009-12-24 | 2010-11-17 | 北京航天斯达新技术装备公司 | Down-insertion filling valve of weighing type filling machine |
| CN103062416A (en) * | 2012-12-24 | 2013-04-24 | 浙江中控流体技术有限公司 | Single-seat flexible seal valve device |
| CN203857120U (en) * | 2014-04-13 | 2014-10-01 | 白雪峰 | Charging valve with double seal |
| CN204312710U (en) * | 2014-11-24 | 2015-05-06 | 杭州中亚机械股份有限公司 | A kind of filling valve |
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| Publication number | Publication date |
|---|---|
| CN104401919A (en) | 2015-03-11 |
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