CN103591328B - The fast cut valve of titanium alloy zero-leakage metal sealing - Google Patents
The fast cut valve of titanium alloy zero-leakage metal sealing Download PDFInfo
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- CN103591328B CN103591328B CN201310589260.2A CN201310589260A CN103591328B CN 103591328 B CN103591328 B CN 103591328B CN 201310589260 A CN201310589260 A CN 201310589260A CN 103591328 B CN103591328 B CN 103591328B
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- valve
- valve barrel
- barrel
- right valve
- valve ball
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- 229910001069 Ti alloy Inorganic materials 0.000 title claims abstract description 16
- 238000007789 sealing Methods 0.000 title claims abstract description 13
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 11
- 239000002184 metal Substances 0.000 title claims abstract description 11
- 230000005540 biological transmission Effects 0.000 claims abstract description 35
- 210000004907 gland Anatomy 0.000 claims abstract description 13
- 238000012856 packing Methods 0.000 claims abstract description 13
- 230000009977 dual effect Effects 0.000 claims abstract description 5
- 239000000463 material Substances 0.000 claims description 10
- 239000000945 filler Substances 0.000 claims description 4
- 230000001105 regulatory effect Effects 0.000 abstract 1
- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 description 11
- 238000000034 method Methods 0.000 description 9
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 6
- 238000005240 physical vapour deposition Methods 0.000 description 5
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 4
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical group [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000005121 nitriding Methods 0.000 description 3
- 239000010936 titanium Substances 0.000 description 3
- 229910052719 titanium Inorganic materials 0.000 description 3
- URLKBWYHVLBVBO-UHFFFAOYSA-N Para-Xylene Chemical group CC1=CC=C(C)C=C1 URLKBWYHVLBVBO-UHFFFAOYSA-N 0.000 description 2
- 238000002425 crystallisation Methods 0.000 description 2
- 230000008025 crystallization Effects 0.000 description 2
- 239000000284 extract Substances 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- BMYNFMYTOJXKLE-UHFFFAOYSA-N 3-azaniumyl-2-hydroxypropanoate Chemical compound NCC(O)C(O)=O BMYNFMYTOJXKLE-UHFFFAOYSA-N 0.000 description 1
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 1
- CPELXLSAUQHCOX-UHFFFAOYSA-M Bromide Chemical compound [Br-] CPELXLSAUQHCOX-UHFFFAOYSA-M 0.000 description 1
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 229940071125 manganese acetate Drugs 0.000 description 1
- UOGMEBQRZBEZQT-UHFFFAOYSA-L manganese(2+);diacetate Chemical compound [Mn+2].CC([O-])=O.CC([O-])=O UOGMEBQRZBEZQT-UHFFFAOYSA-L 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000008096 xylene 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
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/06—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor
-
- 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
- F16K25/00—Details relating to contact between valve members and seats
- F16K25/005—Particular materials for seats or closure elements
-
- 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
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/06—Construction of housing; Use of materials therefor of taps or cocks
-
- 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
- F16K41/00—Spindle sealings
- F16K41/02—Spindle sealings with stuffing-box ; Sealing rings
-
- 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
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/08—Details
-
- 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
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/08—Details
- F16K5/14—Special arrangements for separating the sealing faces or for pressing them together
- F16K5/20—Special arrangements for separating the sealing faces or for pressing them together for plugs with spherical surfaces
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Taps Or Cocks (AREA)
- Lift Valve (AREA)
Abstract
The present invention relates to the fast cut valve of a kind of titanium alloy zero-leakage metal sealing, be widely used in, in PTA device, belonging to instrument control field.It comprises right valve barrel and left valve barrel, is provided with valve ball in right valve barrel, and valve ball upper end is by flat key and spline joint transmission shaft, and right valve barrel is stretched out in transmission shaft upper end.Upper gland packing is provided with, the top cover labyrinth sealing that upper gland packing is connected by right valve barrel upper end between transmission shaft and right valve barrel.Valve ball lower end connects driven shaft, and right valve barrel lower end is bolted pin-lift arrangement, and pin-lift arrangement upper end holds out against driven shaft, is respectively equipped with a black box between valve ball and right valve barrel, left valve barrel.The present invention prevents medium to pile up at inwall by high-temperature steam rinse mouth, and transmission shaft and valve ball adopt spline, flat key dual drive linkage structure, and valve ball mandrel device is convenient to be regulated valve ball upper-lower position and alleviates the extruding of valve ball deadweight to valve seat.
Description
Technical field
The present invention relates to the fast cut valve of a kind of titanium alloy zero-leakage metal sealing, be widely used in, in PTA device, belonging to instrument control field.
Background technique
PTA(p-phthalic acid) be one of very important large Organic Ingredients, be widely used in the All aspects of of the national economy such as chemical fibre, light industry, electronics, building, closely related with the height of living standards of the people.PTA is the lower end product of oil.Oil produces naphtha (another name benzine) through certain manufacturing process, extracts MX(Mixed XYLENE from naphtha), and then extract PX(paraxylene).PTA accounts for 65% ~ 67% with PX(formula) for raw material, take acetic acid as solvent, manganese acetate is catalyzer, after air oxidation (oxygen accounts for 35% ~ 33%), generate crude terephthalic acid under effect that hydrobromic acid is promoter, hydrofinishing is carried out to crude terephthalic acid, remove impurity, more namely generate PTA finished product after the links such as crystallization, separation, drying.This process route temperature high (>=200 DEG C), pressure high (2.5 ~ 8.0Mpa), and the dense acetic acid corrosivity of bromine ion-containing is extremely strong, result of study shows for many years, and the most practical material can resisting this operating mode is titanium.The outstanding advantages such as titanium material has that density is low, intensity is high, corrosion-resistant and resistance to pressure is good.Therefore, the various reactors manufactured by titanium material use widely in PTA device, and valve is as the indispensable especially parts of the application of important control unit in the sector equipment.
Titanium alloy is expensive, manufacturing process is complicated, the valve ball manufactured by titanium alloy and valve seat are difficult to realize its hardness by heat treatment and improve, its surface hardness improves by nitrogenize in producer mostly at present, but existing vacuum nitriding process thickness is 0.03-0.05mm, hardness HRC50-55, nitriding temperature about 700 DEG C, surface is yielding, and following process is difficult to ensure nitride thickness, and wear resistance is limited.The slurry of valve in running, through crystallization processes, easily produces buildup at valve pocket, causes valve to open or close.Common ball-valve structure, transmission accuracy between transmission shaft and valve ball and poor reliability, upper-lower position when valve ball is installed cannot accurately ensure, the valve ball deadweight of larger caliber valve can increase the extrusion abrasion to valve seat, and then affects operation stability and the working life of valve.
Summary of the invention
The object of the invention is to overcome above-mentioned deficiency, thus provide a kind of high-accuracy, high performance titanium alloy zero-leakage metal sealing fast cut valve.
According to technological scheme provided by the invention, the fast cut valve of titanium alloy zero-leakage metal sealing comprises right valve barrel and left valve barrel, right valve barrel left end face is bolted left valve barrel, it is characterized in that: in right valve barrel, be provided with valve ball, valve ball upper end is by flat key and spline joint transmission shaft, and right valve barrel is stretched out in transmission shaft upper end.Upper gland packing is provided with, the top cover labyrinth sealing that upper gland packing is connected by right valve barrel upper end between transmission shaft and right valve barrel.Valve ball lower end connects driven shaft, and right valve barrel lower end is bolted pin-lift arrangement, and pin-lift arrangement upper end holds out against driven shaft, is respectively equipped with a black box between valve ball and right valve barrel, left valve barrel.
Further, pin-lift arrangement comprises lower seal cover, is provided with push rod in lower seal cover, is provided with lower seal filler between push rod and lower seal cover.
Further, positioning ring is provided with between valve ball and transmission shaft.
Further, lining is provided with between right valve barrel and transmission shaft.Described upper lining adopts heat resistance, wear-resisting diphasic titanium alloy TC11 material is made.
Further, lower lining is provided with between right valve barrel and driven shaft.Described lower lining adopts heat resistance, wear-resisting diphasic titanium alloy TC11 material is made.
Further, right valve barrel outer surface is provided with two high-temperature steam rinse mouths, and two high-temperature steam rinse mouths are symmetrical up and down along right valve barrel horizontal center line; The center line of high-temperature steam rinse mouth and the angle of right valve barrel vertical center line are 45 °.
Further, upper gland packing lower end is provided be sleeved on transmission shaft anti-and goes out ring.
Further, transmission shaft and valve ball adopt the dual drive linkage structure of flat key, spline.
Further, described valve ball employing heat resistance, wear-resisting diphasic titanium alloy TC11 material are made.Valve ball and valve base surface adopt PVD top layer coating TIN treatment process.
Compared with the prior art the present invention has the following advantages:
1, right valve barrel outside is provided with upper and lower two high-temperature steam rinse mouths, prevents valve pocket buildup from causing valve to open or close;
2, pin-lift arrangement has been filled bottom right valve barrel, by this device supporting sephere, can modulating valve ball position very easily, alleviate the extruding that spheroid deadweight produces valve seat, the working life more than 3 times of valve ball, valve seat can be extended;
3, transmission shaft and valve ball adopt the dual drive structure of spline, flat key, and this drive mechanism improves transmission accuracy and the reliability of transmission shaft and valve ball;
4, transmission shaft and valve ball axis hole adopt semicircular ring to carry out radial location, eliminate spline ending part and valve ball shaft hole matching gap;
5, valve ball and lining matter select TC11, have higher room temperature, drawing by high temperature and creep strength, have good technology capability, are applicable to various forms of machining;
6, valve ball and valve base surface adopt PVD top layer to apply TIN, can ensure spheroid circularity (can reach 0.005), and also can improve surface hardness about value HV3000, wear resistance is higher than top layer nitriding treatment simultaneously;
7, valve opening and closing time≤5S, meet the requirement of fast shut-off.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is right valve barrel structural representation.
Fig. 3 is that ball valve is connected with transmission shaft and partly cuts open figure.
Description of reference numerals: 1-transmission shaft, 2-upper gland packing, 3-be anti-goes out lining, 15-driven shaft, 16-pin-lift arrangement, 17-high-temperature steam rinse mouth, 18-spline, 19-top cover labyrinth, 20-lower seal cover, 21-lower seal filler, 22-push rod under ring, 4-right valve barrel, 5-left valve barrel, the upper lining of 6-, 7-metal wound gasket, 8-positioning ring, 9-flat key, 10-valve ball, 11-valve seat, 12-high capacity butterfly spring, 13-O RunddichtringO, 14-.
Embodiment
Embodiment in is by reference to the accompanying drawings further described by the present invention below:
As shown in Figure 1, the present invention mainly comprises right valve barrel 4 and left valve barrel 5, and right valve barrel 4 left end face is bolted left valve barrel 5.The metal wound gasket 7 for sealing is provided with between right valve barrel 4 and left valve barrel 5.
As shown in Figure 3, be provided with valve ball 10 in right valve barrel 4, valve ball 10 upper end is by flat key 9 and spline 18 connection for transmission axle 1, and right valve barrel 4 is stretched out in transmission shaft 1 upper end.Be provided with upper gland packing 2 between transmission shaft 1 and right valve barrel 4, the top cover labyrinth 19 that upper gland packing 2 is connected by right valve barrel 4 upper end seals.Upper gland packing 2 lower end is provided be sleeved on transmission shaft 1 anti-and goes out ring 3, prevents upper gland packing 2 from coming off.Lining 6 is provided with between described right valve barrel 4 and transmission shaft 1.Positioning ring 8 is provided with between described valve ball 10 and transmission shaft 1.
Described valve ball 10 lower end connects driven shaft 15, and right valve barrel 4 lower end is bolted pin-lift arrangement 16, and pin-lift arrangement 16 upper end holds out against driven shaft 15.Lower lining 14 is provided with between described right valve barrel 4 and driven shaft 15.
Described pin-lift arrangement 16 comprises lower seal cover 20, is provided with push rod 22 in lower seal cover 20, is provided with lower seal filler 21 between push rod 22 and lower seal cover 20.
Be respectively equipped with a black box between described valve ball 10 and right valve barrel 4, left valve barrel 5, black box comprises valve seat 11, and valve seat 11 rear end is provided with high capacity butterfly spring 12.Described valve seat 11 outer ring is provided with O RunddichtringO 13.
As shown in Figure 2, to be provided with two high-temperature steam rinse mouths, 17, two high-temperature steam rinse mouths 17 symmetrical up and down along right valve barrel 4 horizontal center line for described right valve barrel 4 outer surface.The center line of high-temperature steam rinse mouth 17 and the angle of right valve barrel 4 vertical center line are 45 °.
Described valve ball adopts heat-resisting (reaching 500 DEG C), wear-resisting diphasic titanium alloy TC11 material makes.Described valve ball and valve base surface adopt PVD(physical vapor deposition technology) top layer applies TIN treatment process.Described transmission shaft surface adopts grinding to add high frequency extrusion process.Described upper and lower lining adopts TC11 material to make.
Working principle of the present invention is as follows:
The present invention adopts high-temperature steam flushing mechanism, utilizes the high-temperature steam rinse mouth on right valve barrel to rinse ball valve body inner chamber, prevents medium from piling up at inwall.Transmission shaft of the present invention and valve ball adopt the dual drive structure of spline, flat key, improve transmission accuracy and the reliability of transmission shaft and valve ball.Transmission shaft of the present invention and valve ball axis hole adopt positioning ring to carry out radial location, eliminate spline processing ending part and valve ball shaft hole matching gap, ensure the reliability coordinating location.Bottom right valve barrel of the present invention, pin-lift arrangement is installed, has supported valve ball by this device, can modulating valve ball position very easily, alleviate the extruding that valve ball deadweight produces valve seat simultaneously.Valve ball material selection TC11 of the present invention, has higher room temperature, drawing by high temperature and creep strength, has good technology capability, is applicable to various forms of machining.Valve ball of the present invention and valve base surface adopt PVD top layer to apply TIN treatment process.
Claims (3)
1. the fast cut valve of titanium alloy zero-leakage metal sealing, comprise right valve barrel (4) and left valve barrel (5), right valve barrel (4) left end face is bolted left valve barrel (5), is provided with valve ball (10) in right valve barrel (4), and right valve barrel (4) is stretched out in transmission shaft (1) upper end; Upper gland packing (2) is provided with, top cover labyrinth (19) sealing that upper gland packing (2) is connected by right valve barrel (4) upper end between transmission shaft (1) and right valve barrel (4); A black box is respectively equipped with between valve ball (10) and right valve barrel (4), left valve barrel (5);
It is characterized in that: valve ball (10) upper end is by flat key (9) and spline (18) connection for transmission axle (1), valve ball (10) lower end connects driven shaft (15), right valve barrel (4) lower end is bolted pin-lift arrangement (16), and pin-lift arrangement (16) upper end holds out against driven shaft (15);
Described pin-lift arrangement (16) comprises lower seal cover (20), is provided with push rod (22) in lower seal cover (20), is provided with lower seal filler (21) between push rod (22) and lower seal cover (20);
Positioning ring (8) is provided with between described valve ball (10) and transmission shaft (1);
Described right valve barrel (4) outer surface is provided with two high-temperature steam rinse mouths (17), and two high-temperature steam rinse mouths (17) are symmetrical up and down along right valve barrel (4) horizontal center line; The center line of high-temperature steam rinse mouth (17) and the angle of right valve barrel (4) vertical center line are 45 °;
Described upper gland packing (2) lower end is provided be sleeved on transmission shaft (1) anti-and goes out ring (3).
2. the fast cut valve of titanium alloy zero-leakage metal sealing as claimed in claim 1, is characterized in that: described transmission shaft (1) and valve ball (10) adopt the dual drive linkage structure of flat key (9), spline (18).
3. the fast cut valve of titanium alloy zero-leakage metal sealing as claimed in claim 1, is characterized in that: described valve ball (10) adopts titanium alloy T C11 material to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310589260.2A CN103591328B (en) | 2013-11-20 | 2013-11-20 | The fast cut valve of titanium alloy zero-leakage metal sealing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310589260.2A CN103591328B (en) | 2013-11-20 | 2013-11-20 | The fast cut valve of titanium alloy zero-leakage metal sealing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103591328A CN103591328A (en) | 2014-02-19 |
| CN103591328B true CN103591328B (en) | 2016-02-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310589260.2A Active CN103591328B (en) | 2013-11-20 | 2013-11-20 | The fast cut valve of titanium alloy zero-leakage metal sealing |
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| Country | Link |
|---|---|
| CN (1) | CN103591328B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2023518656A (en) * | 2020-02-04 | 2023-05-08 | カリダス プロセス ソリューションズ ピーティワイ リミテッド | Bonded ball valve trim |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201575186U (en) * | 2009-11-25 | 2010-09-08 | 宝鸡市春雨钛镍设备制造有限公司 | Hard sealing titanium ball valve |
| CN201672085U (en) * | 2010-04-27 | 2010-12-15 | 苏州鼎利涂层有限公司 | Ball valve |
| CN102954249A (en) * | 2011-08-23 | 2013-03-06 | 上海凯工阀门有限公司 | Fixed ball valve structure regulating device |
| CN203686210U (en) * | 2013-11-20 | 2014-07-02 | 无锡智能自控工程股份有限公司 | Titanium alloy zero-leakage metallic seal quick-switch ball valve |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0211738A (en) * | 1988-06-28 | 1990-01-16 | Ngk Spark Plug Co Ltd | Ceramic-metal sliding structure |
-
2013
- 2013-11-20 CN CN201310589260.2A patent/CN103591328B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201575186U (en) * | 2009-11-25 | 2010-09-08 | 宝鸡市春雨钛镍设备制造有限公司 | Hard sealing titanium ball valve |
| CN201672085U (en) * | 2010-04-27 | 2010-12-15 | 苏州鼎利涂层有限公司 | Ball valve |
| CN102954249A (en) * | 2011-08-23 | 2013-03-06 | 上海凯工阀门有限公司 | Fixed ball valve structure regulating device |
| CN203686210U (en) * | 2013-11-20 | 2014-07-02 | 无锡智能自控工程股份有限公司 | Titanium alloy zero-leakage metallic seal quick-switch ball valve |
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| Publication number | Publication date |
|---|---|
| CN103591328A (en) | 2014-02-19 |
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