CN108087576A - A kind of low temperature resistant fixing ball valve - Google Patents
A kind of low temperature resistant fixing ball valve Download PDFInfo
- Publication number
- CN108087576A CN108087576A CN201711338990.XA CN201711338990A CN108087576A CN 108087576 A CN108087576 A CN 108087576A CN 201711338990 A CN201711338990 A CN 201711338990A CN 108087576 A CN108087576 A CN 108087576A
- Authority
- CN
- China
- Prior art keywords
- valve
- ball valve
- fixedly connected
- valve body
- inner cavity
- 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.)
- Pending
Links
Classifications
-
- 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
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/06—Construction of housing; Use of materials therefor of taps or cocks
- F16K27/067—Construction of housing; Use of materials therefor of taps or cocks with spherical plugs
-
- 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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/04—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor
- F16K31/041—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor for rotating valves
- F16K31/042—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor for rotating valves with electric means, e.g. for controlling the motor or a clutch between the valve and the motor
-
- 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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/04—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor
- F16K31/041—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor for rotating valves
- F16K31/043—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor for rotating valves characterised by mechanical means between the motor and the valve, e.g. lost motion means reducing backlash, clutches, brakes or return means
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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
- F16K5/0663—Packings
- F16K5/0694—Spindle sealings
-
- 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
- F16K5/201—Special arrangements for separating the sealing faces or for pressing them together for plugs with spherical surfaces with the housing or parts of the housing mechanically pressing the seal against the plug
Abstract
The invention discloses a kind of low temperature resistant fixing ball valves, including valve body, the first ball valve and the second ball valve, the inner cavity of the valve body, which is from left to right fixedly connected sequentially, temperature sensor, pressure sensor and water quality detection sensor, and the left and right ends of the valve interior surface are movably installed with the first valve rod and the second valve rod respectively.The present invention has opened up the first preformed hole in the inner cavity of valve body and positioned at the both sides of the first ball valve, and pass through the effect of the first disc spring and the first valve seat, the fixation and bearing capacity of this ball valve can be improved, pass through the second preformed hole simultaneously, second disc spring and the second valve seat and temperature sensor, the effect of pressure sensor and motor, when temperature is less than minimum predetermined value, when pressure is more than highest preset value, the power supply of turn on automatically motor, driving tooth wheel disc is made to engage driven tooth wheel disc, so as to open the second ball valve, it can make this ball valve that there is low temperature resistant automatic compensation function, it brings great convenience for the use of people.
Description
Technical field
The present invention relates to ball valve technical fields, are specially a kind of low temperature resistant fixing ball valve.
Background technology
Valve is the control unit in fluid delivery system, has cut-off, adjusting, water conservancy diversion, prevents adverse current, voltage stabilizing, shunting
Or the functions such as overflow pressure relief, for the valve of fluid control systems, from simplest shut-off valve to extremely complex robot control system(RCS)
In used various valves, kind and specification are quite various, and valve can be used for the empty gas and water of control, steam, various corrosivity to be situated between
The flowing of the various types fluid such as matter, mud, oil product, liquid metal and radiating medium, valve are also divided into cast iron according to material
It is valve, cast steel valve, stainless valve, chrome-molybdenum steel valve, Chrominm-molybdenum-vanadium steel valve, dual phase steel valve, Plastic valve, nonstandard customized
Valve etc..
It is domestic also in continuous exploitation with applying as world's new energy is widely used, such as liquefied natural gas, liquid second
The cryogenic medias such as alkene, liquid oxygen, as these new energy demands are growing day by day, ball valve is as the industries pipe such as oil, chemical industry, natural gas
Road separates the capital equipment of medium, and for ultra-low temperature ball valve immediately also by wilderness demand, fixing ball valve is high-performance ball valve of new generation, fits
For long-distance transport pipes and general industry pipeline, intensity, security, adverse environment resistant have carried out special examine when designing
Consider, suitable for various corrosivity and non-aggressive medium, it is compared with floating ball valve, and during work, Fluid pressure is in sphere before valve
The active force of upper generation all passes to bearing, and sphere will not be made to be moved to valve seat, thus valve seat is not subject to excessive pressure,
So the torque of fixing ball valve is small, valve seat deformation is small, sealing performance is stable, service life is long, suitable for high pressure, heavy caliber field
It closes, fixing ball valve has two kinds of valve body structures of two pieces of formulas and three-piece type, and middle flange is connected with, and sealing is using enhancing polytetrafluoroethyl-ne
Alkene is bumped into stainless steel coil, and steel ring rear portion ensures that valve seat is close to sphere equipped with spring, keeps sealing, and upper lower valve rod is equipped with PTFE
Bearing reduces friction, rapid operation, and small axis bottom is equipped with trimmer, ensures that ball and connecing for sealing ring locate position, full-bore：Valve
Door flow aperture is consistent with pipeline internal diameter, so that pipeline cleans.It has the following advantages：1st, rapid operation：Sphere is by upper and lower axle
Support is held, reduces friction, eliminates and was caused since inlet pressure promotes the huge sealing load of sphere and seal receptacle formation
Big torque；2nd, sealing performance is reliable：For PTFE unisexuality materials sealing ring in stainless steel valve seat, metal seat valve tail end is equipped with bullet
Spring ensures the enough pretightning force of sealing ring, valve in use sealing surface wear when, valve is after continuation of insurance under the action of the spring
Demonstrate,prove good seal performance；3rd, fire proof construction：To prevent from, due to shock heating or fire appearance, burning teflin ring,
Occur compared with gross leak, and encourage the intensity of a fire, fire proof seal ring is set in sphere and valve base chamber, when sealing ring is burnt, in spring force
Under effect, valve base sealing ring is pushed on sphere rapidly, forms metal and metal sealing, plays a degree of sealing effect；
4th, releasing pressure automatically function：When the pressure medium that valve lumen is stagnated increases to over the prestressing force of spring extremely, valve seat retreats de-
From sphere, reach self-relieving effect, release rear valve base is automatically multiple；5th, drain line：Valve body is respectively provided with porus excretorius up and down, can
Check valve seat whether leak, at work, valve be in standard-sized sheet or it is fully closed when, lay down middle cavity pressure, can directly replace and fill out
Material can discharge lumen retentate, reduce pollution of the medium to valve.The operation principle of fixing ball valve is made by spinning ball
Valve is unimpeded or inaccessible, hard seal fixing ball valve ball valve switch is light, it is small, very heavy caliber, sealed reliable, knot can be made
Structure is simple, easy to maintenance, sealing surface and spherical surface often in closure state, be not easy by medium erosion, sealing performance is fixing ball valve
One highly important performance, but existing fixing ball valve causes its lower temperature resistance poor since its is simple in structure, for this purpose, I
Propose a kind of low temperature resistant fixing ball valve.
The content of the invention
It is an object of the invention to provide a kind of low temperature resistant fixing ball valve, to solve mentioned above in the background art ask
Topic.
To achieve the above object, the present invention provides following technical solution：A kind of low temperature resistant fixing ball valve, including valve body,
One ball valve and the second ball valve, the inner cavity of the valve body be from left to right fixedly connected sequentially have temperature sensor, pressure sensor and
Water quality detection sensor, the left and right ends of the valve interior surface are movably installed with the first valve rod and the second valve rod respectively, and first
The top of valve rod is fixedly connected with handle, and the top of the second valve rod is fixedly connected with driven tooth wheel disc, first valve rod and
The bottom of two valve rods has been fixedly connected with snap-gauge, and convex block is fixedly connected on the inside of snap-gauge, the left and right two of the body cavity
It holds and has been movably connected with the first ball valve and the second ball valve, the top of the first ball valve and the second ball valve has been fixedly connected with connection
Seat, the left and right sides of connecting seat offers the 3rd preformed hole, and convex block is connected in the inner cavity of the 3rd preformed hole, the valve body
Inner cavity and offer the first preformed hole positioned at the both sides of the first ball valve, and the inner cavity of the first preformed hole is lived by the first disc spring
It is dynamic to be connected with the first valve seat, the inner cavity of the valve body and offer the second preformed hole, and second positioned at the both sides of the second ball valve
The inner cavity of preformed hole is connected with the second valve seat by the second disc spring, and the right end of the body top is fixedly connected with motor,
The output shaft of motor is fixedly connected with driving tooth wheel disc, and driving tooth wheel disc engages connection with driven tooth wheel disc.
Preferably, ring flange, and the four of ring flange inner surface have been fixedly connected at left and right sides of the valve outer surface
Zhou Jun offers mounting hole.
Preferably, the outer surface of first valve rod and the second valve rod is socketed with sealing ring, and valve body and sealing ring
Junction offers the 4th preformed hole.
Preferably, the junction of the motor and valve body is fixedly connected with beam.
Preferably, the outer surface of the valve body, the first ball valve and the second ball valve is coated with polytetrafluoro successively from inside to outside
Vinyl coating, ceramic base composite coating and glass cloth coating, and the thickness of polytetrafluorethylecoatings coatings is 20 to five ten microns；Pottery
The thickness of porcelain base composite coating is 30 five to six ten microns；The thickness of glass cloth coating is 50 to seven ten microns.
Compared with prior art, beneficial effects of the present invention are as follows：
The present invention has opened up the first preformed hole in the inner cavity of valve body and positioned at the both sides of the first ball valve, and pass through the first disc spring and
The effect of first valve seat can improve the fixation and bearing capacity of this ball valve, while pass through the second preformed hole, the second disc spring and second
The effect of valve seat and temperature sensor, pressure sensor and motor, when temperature is pre- more than highest less than minimum predetermined value, pressure
If during value, the power supply of turn on automatically motor makes driving tooth wheel disc engage driven tooth wheel disc, so as to open the second ball valve, this can be made
Ball valve has low temperature resistant automatic compensation function, brings great convenience for the use of people.
Description of the drawings
Fig. 1 is schematic structural view of the invention.
In figure：1 valve body, 2 second ball valves, 3 second disc springs, 4 water quality detection sensors, 5 pressure sensors, 6 temperature sensing
Device, 7 first preformed holes, 8 first ball valves, 9 first disc springs, 10 mounting holes, 11 first valve seats, 12 ring flanges, 13 connecting seats, 14
One valve rod, 15 handles, 16 the 4th preformed holes, 17 sealing rings, 18 the 3rd preformed holes, 19 motors, 20 driving tooth wheel discs, 21 driven tooths
Wheel disc, 22 snap-gauges, 23 convex blocks, 24 second valve seats, 25 second preformed holes, 26 second valve rods.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other without making creative work
Embodiment belongs to the scope of protection of the invention.
Referring to Fig. 1, a kind of low temperature resistant fixing ball valve, including valve body 1, the first ball valve 8 and the second ball valve 2, valve body 1,
The outer surface of one ball valve 8 and the second ball valve 2 be coated with successively from inside to outside polytetrafluorethylecoatings coatings, ceramic base composite coating and
Glass cloth coating, and the thickness of polytetrafluorethylecoatings coatings is 20 to five ten microns；The thickness of ceramic base composite coating is 30
Five to six ten microns；The thickness of glass cloth coating is 50 to seven ten microns, and the inner cavity of valve body 1 is from left to right fixedly connected sequentially
There are temperature sensor 6, pressure sensor 5 and water quality detection sensor 4, when temperature is more than highest less than minimum predetermined value, pressure
During preset value, the power supply of turn on automatically motor 19 makes driving tooth wheel disc 20 engage driven tooth wheel disc 21, so as to open the second ball valve
2, it can make this ball valve that there is low temperature resistant automatic compensation function, bring great convenience for the use of people, a left side for 1 inner surface of valve body
Right both ends are movably installed with the first valve rod 14 and the second valve rod 26 respectively, and the outer surface of the first valve rod 14 and the second valve rod 26 covers
Sealing ring 17 is connected to, and valve body 1 and the junction of sealing ring 17 offer the 4th preformed hole 16, the top of the first valve rod 14 is fixed
It is connected with handle 15, the top of the second valve rod 26 is fixedly connected with driven tooth wheel disc 21, the first valve rod 14 and the second valve rod 26
Bottom has been fixedly connected with snap-gauge 22, and the inside of snap-gauge 22 is fixedly connected with convex block 23, the left and right ends difference of 1 inner cavity of valve body
It is connected with the first ball valve 8 and the second ball valve 2, the top of the first ball valve 8 and the second ball valve 2 has been fixedly connected with connecting seat
13, the left and right sides of connecting seat 13 offers the 3rd preformed hole 18, and convex block 23 is connected in the inner cavity of the 3rd preformed hole 18,
The inner cavity of valve body 1 and offer the first preformed hole 7 positioned at the both sides of the first ball valve 8, and the inner cavity of the first preformed hole 7 passes through the
One disc spring 9 is connected with the first valve seat 11, can improve the fixation and bearing capacity of this ball valve, the inner cavity of valve body 1 and positioned at the
The both sides of two ball valves 2 offer the second preformed hole 25, and the inner cavity of the second preformed hole 25 is connected with by the second disc spring 3
Second valve seat 24, the right end at the top of valve body 1 are fixedly connected with motor 19, and the junction of motor 19 and valve body 1, which is fixedly connected with, to be subtracted
Shake pad, the output shaft of motor 19 are fixedly connected with driving tooth wheel disc 20, and driving tooth wheel disc 20 and 21 company of engagement of driven tooth wheel disc
It connects, ring flange 12 has been fixedly connected at left and right sides of 1 outer surface of valve body, and the surrounding of 12 inner surface of ring flange offers peace
Fill hole 10.
In use, opened up the first preformed hole 7 in the inner cavity of valve body 1 and positioned at the both sides of the first ball valve 8, and pass through the
The effect of one disc spring 9 and the first valve seat 11, can improve the fixation and bearing capacity of this ball valve, at the same by the second preformed hole 25,
The effect of second disc spring 3 and the second valve seat 24 and temperature sensor 6, pressure sensor 5 and motor 19, when temperature is less than minimum
When preset value, pressure are more than highest preset value, the power supply of turn on automatically motor 19 makes driving tooth wheel disc 20 engage driven tooth wheel disc
21, it so as to open the second ball valve 2, can make this ball valve that there is low temperature resistant automatic compensation function, be brought greatly for the use of people
It is convenient.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
Understanding without departing from the principles and spirit of the present invention can carry out these embodiments a variety of variations, modification, replace
And modification, the scope of the present invention is defined by the appended.
Claims (5)
1. a kind of low temperature resistant fixing ball valve, including valve body（1）, the first ball valve（8）With the second ball valve（2）, it is characterised in that：It is described
Valve body（1）Inner cavity be from left to right fixedly connected sequentially and have temperature sensor（6）, pressure sensor（5）It is sensed with water quality detection
Device（4）, the valve body（1）The left and right ends of inner surface are movably installed with the first valve rod respectively（14）With the second valve rod（26）, the
One valve rod（14）Top be fixedly connected with handle（15）, the second valve rod（26）Top be fixedly connected with driven tooth wheel disc
（21）, first valve rod（14）With the second valve rod（26）Bottom be fixedly connected with snap-gauge（22）, and snap-gauge（22）It is interior
Side is fixedly connected with convex block（23）, the valve body（1）The left and right ends of inner cavity have been movably connected with the first ball valve（8）With second
Ball valve（2）, the first ball valve（8）With the second ball valve（2）Top be fixedly connected with connecting seat（13）, connecting seat（13）Left and right
Both sides offer the 3rd preformed hole（18）, and convex block（23）It is connected to the 3rd preformed hole（18）Inner cavity in, the valve body（1）
Inner cavity and positioned at the first ball valve（8）Both sides offer the first preformed hole（7）, and the first preformed hole（7）Inner cavity pass through
First disc spring（9）It is connected with the first valve seat（11）, the valve body（1）Inner cavity and positioned at the second ball valve（2）Both sides it is equal
Offer the second preformed hole（25）, and the second preformed hole（25）Inner cavity pass through the second disc spring（3）It is connected with the second valve seat
（24）, the valve body（1）The right end at top is fixedly connected with motor（19）, motor（19）Output shaft be fixedly connected with driving tooth
Wheel disc（20）, and driving tooth wheel disc（20）With driven tooth wheel disc（21）Engagement connection.
2. a kind of low temperature resistant fixing ball valve according to claim 1, it is characterised in that：The valve body（1）A left side for outer surface
Right both sides have been fixedly connected with ring flange（12）, and ring flange（12）The surrounding of inner surface offers mounting hole（10）.
3. a kind of low temperature resistant fixing ball valve according to claim 1, it is characterised in that：First valve rod（14）With second
Valve rod（26）Outer surface be socketed with sealing ring（17）, and valve body（1）With sealing ring（17）To offer the 4th pre- for junction
It boxes out（16）.
4. a kind of low temperature resistant fixing ball valve according to claim 1, it is characterised in that：The motor（19）With valve body（1）
Junction be fixedly connected with beam.
5. a kind of low temperature resistant fixing ball valve according to claim 1, it is characterised in that：The valve body（1）, the first ball valve
（8）With the second ball valve（2）Outer surface be coated with polytetrafluorethylecoatings coatings, ceramic base composite coating and glass successively from inside to outside
Glass cloth coating, and the thickness of polytetrafluorethylecoatings coatings is 20 to five ten microns；The thickness of ceramic base composite coating is 35
To 60 microns；The thickness of glass cloth coating is 50 to seven ten microns.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711338990.XA CN108087576A (en) | 2017-12-14 | 2017-12-14 | A kind of low temperature resistant fixing ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711338990.XA CN108087576A (en) | 2017-12-14 | 2017-12-14 | A kind of low temperature resistant fixing ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108087576A true CN108087576A (en) | 2018-05-29 |
Family
ID=62175747
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711338990.XA Pending CN108087576A (en) | 2017-12-14 | 2017-12-14 | A kind of low temperature resistant fixing ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108087576A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108869763A (en) * | 2018-09-18 | 2018-11-23 | 江苏海纬集团有限公司 | A kind of adjustable shut-off valve |
| WO2023183637A1 (en) * | 2022-03-25 | 2023-09-28 | Duraseat Llc | Improved valve seal integrity verification systems and methods |
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|---|---|---|---|---|
| JP2003214701A (en) * | 2002-01-22 | 2003-07-30 | Rinnai Corp | Hot/cold water mixing unit for water heater |
| CN2806915Y (en) * | 2005-06-09 | 2006-08-16 | 上海西派埃仪表成套有限公司 | Precise electric V-type ball valve |
| CN204647519U (en) * | 2015-06-01 | 2015-09-16 | 徐俏 | Two ball valve valves that a kind of gear transmission opens and closes |
| CN105299265A (en) * | 2014-07-31 | 2016-02-03 | 广州通泽机械有限公司 | Double-ball-valve synchronous opening and closing device |
| CN205013745U (en) * | 2015-10-12 | 2016-02-03 | 江山市志成阀门有限公司 | Ball valve sealing structure |
| CN205207743U (en) * | 2015-11-28 | 2016-05-04 | 宁波会德丰铜业有限公司 | Electronic temperature ball control valve |
| CN105972310A (en) * | 2016-05-25 | 2016-09-28 | 江苏经纬阀业有限公司 | Belleville spring loaded automatic compensation double-ball valve |
-
2017
- 2017-12-14 CN CN201711338990.XA patent/CN108087576A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003214701A (en) * | 2002-01-22 | 2003-07-30 | Rinnai Corp | Hot/cold water mixing unit for water heater |
| CN2806915Y (en) * | 2005-06-09 | 2006-08-16 | 上海西派埃仪表成套有限公司 | Precise electric V-type ball valve |
| CN105299265A (en) * | 2014-07-31 | 2016-02-03 | 广州通泽机械有限公司 | Double-ball-valve synchronous opening and closing device |
| CN204647519U (en) * | 2015-06-01 | 2015-09-16 | 徐俏 | Two ball valve valves that a kind of gear transmission opens and closes |
| CN205013745U (en) * | 2015-10-12 | 2016-02-03 | 江山市志成阀门有限公司 | Ball valve sealing structure |
| CN205207743U (en) * | 2015-11-28 | 2016-05-04 | 宁波会德丰铜业有限公司 | Electronic temperature ball control valve |
| CN105972310A (en) * | 2016-05-25 | 2016-09-28 | 江苏经纬阀业有限公司 | Belleville spring loaded automatic compensation double-ball valve |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108869763A (en) * | 2018-09-18 | 2018-11-23 | 江苏海纬集团有限公司 | A kind of adjustable shut-off valve |
| CN108869763B (en) * | 2018-09-18 | 2023-11-17 | 江苏海纬集团有限公司 | Adjustable stop valve |
| WO2023183637A1 (en) * | 2022-03-25 | 2023-09-28 | Duraseat Llc | Improved valve seal integrity verification systems and methods |
| US11781937B1 (en) | 2022-03-25 | 2023-10-10 | Duraseat Llc | Valve seal integrity verification systems and methods |
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