CN101706007A - Diaphragm valve with middle and large caliber controlled by small moment - Google Patents
Diaphragm valve with middle and large caliber controlled by small moment Download PDFInfo
- Publication number
- CN101706007A CN101706007A CN200910153829A CN200910153829A CN101706007A CN 101706007 A CN101706007 A CN 101706007A CN 200910153829 A CN200910153829 A CN 200910153829A CN 200910153829 A CN200910153829 A CN 200910153829A CN 101706007 A CN101706007 A CN 101706007A
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- CN
- China
- Prior art keywords
- diaphragm
- valve
- connection chamber
- valve body
- inlet passage
- 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
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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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/36—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor
- F16K31/40—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor with electrically-actuated member in the discharge of the motor
- F16K31/402—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor with electrically-actuated member in the discharge of the motor acting on a diaphragm
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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
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
- F16K27/0236—Diaphragm cut-off apparatus
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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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/36—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor
- F16K31/38—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor in which the fluid works directly on both sides of the fluid motor, one side being connected by means of a restricted passage and the motor being actuated by operating a discharge from that side
- F16K31/385—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor in which the fluid works directly on both sides of the fluid motor, one side being connected by means of a restricted passage and the motor being actuated by operating a discharge from that side the fluid acting on a diaphragm
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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
- F16K7/00—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves
- F16K7/12—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves with flat, dished, or bowl-shaped diaphragm
- F16K7/14—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves with flat, dished, or bowl-shaped diaphragm arranged to be deformed against a flat seat
- F16K7/17—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves with flat, dished, or bowl-shaped diaphragm arranged to be deformed against a flat seat the diaphragm being actuated by fluid pressure
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Fluid-Driven Valves (AREA)
Abstract
The invention relates to a diaphragm valve, in particular to a diaphragm valve with a middle and large caliber controlled by small moment. The technical scheme is characterized in that the diaphragm valve with the middle and large caliber controlled by the small moment comprises a valve body and a valve cap; the valve body is internally provided with a valve passage, a valve seat and a valve core; a connecting chamber for communicating a medium inflow passage with a medium outflow passage is arranged between the valve cap and the valve body; the valve core is a diaphragm and a component for arranging the diaphragm; the diaphragm and the component are arranged between the medium inflow passage and the medium outflow passage and is contacted with the valve seat; the end surface of the diaphragm, facing to the medium inflow passage, is provided with a plurality of pilot holes; the valve body is provided with a diversion passage which is communicated with the connecting chamber; the diversion passage is internally provided with a pressure relief passage that is communicated with the environment; and a microswitch is arranged between the pressure relief passage and the diversion passage. By adopting the technical scheme, the opening/closing and flux regulating of the diaphragm valve with the middle and large caliber can be controlled by the small moment.
Description
Technical field
The present invention relates to a kind of membrane valve, heavy caliber membrane valve in particularly a kind of little Torque Control.
Background technique
At present, valve opening or the hoisting capacity when closing and open and close moment, during throttle down, need make open-shut device and send out between seat two sealing surfaces and form certain seal pressure, also to overcome between valve rod and the filler simultaneously, between the screw thread of valve rod and nut, the frictional force and the pressure medium at valve rod overhang bracket place and other friction positions, thereby must apply certain hoisting capacity and open and close moment, its maximum value is instantaneous at first in the final instantaneous or unlatching of closing.Cause wanting big moment actuator (motor, cylinder, handwheel etc.) to come control valve to open or close and Flow-rate adjustment, increased cost of production (material and the energy), reduce manufacturing efficiency.
Summary of the invention
For overcome existing in large bore valves can not little moment opening/shutting valve deficiency, the invention provides heavy caliber membrane valve in a kind of little Torque Control, in this little Torque Control the heavy caliber membrane valve can not only little Torque Control in large bore valves open and close and Flow-rate adjustment, and can adopt intelligent control, manually control, electronic control, Electromagnetic Control, pneumatic control, the control of surging easily.
For achieving the above object, the invention provides following technological scheme: heavy caliber membrane valve in a kind of little Torque Control, include valve body and valve gap, be provided with the valve road in the described valve body, valve seat and spool, described valve road includes medium inlet passage and medium flow pass, be provided with connection chamber between described valve gap and the valve body for medium inlet passage and the conducting of medium flow pass, described spool is the assembly that sets up of diaphragm and diaphragm, diaphragm and set up assembly and place between medium inlet passage and medium flow pass and the connection chamber, and touch with valve seat and to close, diaphragm is provided with some pilot holes towards the end face of medium inlet passage part, described valve body is provided with the guide channel with the connection chamber conducting, be provided with discharge channel in this guide channel with extraneous conducting, the sensitive switch that is provided with formation discharge channel and guide channel conducting between discharge channel and the guide channel or closes, described discharge channel and guide channel conducting constitute the release of connection chamber, diaphragm and set up assembly and on connection chamber, move, connection chamber and medium inlet passage and medium flow out channel connection, constitute the conducting of medium inlet passage and medium flow pass, described discharge channel and guide channel are closed, diaphragm sealing connection chamber constitutes closing of medium inlet passage and medium flow pass.
Adopt technique scheme, the great valve of bore no matter, the pressure in the connection chamber is not if laid down, and valve just can't be unlocked; Otherwise, only need the turn sensitive switch, make discharge channel and conductive channel conducting, just can be with the pressure removal in the connection chamber, easy to operate, simple in structure, and also laborsaving, need not to expend great amount of manpower, saving manpower and material resources have reduced cost of production; And open discharge value and the speed of closing fast, improved working efficiency.
Wherein, described diaphragm includes and connects sealing surface and compression face, the connection sealing surface of diaphragm is pressed and is located between valve gap and the valve body, the cross section of the compression face of diaphragm is the flat setting, the described assembly that sets up includes and is in the spring of conflicting with the compression face of diaphragm in the connection chamber, the carriage that travel(l)ing rest that fit to move with diaphragm and diaphragm are oppositely arranged travel(l)ing rest one end place, be evenly equipped with some through holes on the carriage, described valve seat is the connecting base between medium inlet passage and the connection chamber, described sensitive switch is to be revealed in the outer knob of valve body, and the end that this knob extends between discharge channel and the guide channel is provided with sealing gasket.Above-mentioned sealing and the supportive of having strengthened diaphragm that be provided with makes diaphragm be fixed, and prevents diaphragm distortion and breaks.
The present invention further is set to: described spring is a volute spring, includes big end and small end, and its big end and diaphragm are conflicted, and small end and valve gap are conflicted.
Adopt technique scheme, it is bigger to adopt volute spring to make that spring compresses the pressure of an end of diaphragm, has strengthened the dynamics that compresses of spring, has improved the sealing of diaphragm, makes pressure evenly distribute.
The present invention further is set to: described sensitive switch transmits display operation by signal by driving mechanisms control between driving mechanism and the backstage indication mechanism.
Adopt such scheme, make the little moment of fine motion can pass through intelligent control, easy to operate, simple.
Wherein, described driving mechanism is the micro motor solenoid valve, and the backstage indication mechanism is display screen and the background processor that is connected with the micro motor solenoid valve.Just comparatively commonly used with the micro motor electromagnetic valve, and applicability is strong; Whether display screen then can make operation people inspecting valve door open or close.
Below in conjunction with accompanying drawing the present invention is further described:
Description of drawings
Fig. 1 is the closed condition schematic representation of the embodiment of the invention 1;
Fig. 2 is the A-A sectional view of Fig. 1;
Fig. 3 is the opening state schematic representation of the embodiment of the invention 1;
Fig. 4 is the B-B sectional view of Fig. 2;
Fig. 5 is the schematic top plan view of carriage in the embodiment of the invention 1;
Fig. 6 is the closed condition schematic representation of the embodiment of the invention 2;
Fig. 7 is the I portion enlarged view of Fig. 6;
Fig. 8 is the C-C sectional view of Fig. 6;
Fig. 9 is the opening state schematic representation of the embodiment of the invention 2;
Figure 10 is the D-D sectional view of Fig. 9.
Embodiment
As Fig. 1, shown in Figure 6, the present invention is a heavy caliber membrane valve in a kind of little Torque Control, include valve body 1 and valve gap 2, be provided with valve road 11 in the described valve body 1, valve seat 12 and spool, described valve road 11 includes medium inlet passage 111 and medium flow pass 112, be provided with connection chamber 13 between described valve gap 2 and the valve body 1 for medium inlet passage 111 and 112 conductings of medium flow pass, spool be diaphragm 14 and diaphragm 14 set up assembly 15, diaphragm 14 and set up assembly 15 and place between medium inlet passage 111 and medium flow pass 112 and the connection chamber 13, and touch with valve seat 12 and to close, diaphragm 14 is provided with some pilot holes 113 towards the end face of medium inlet passage 111 parts, described valve body 11 is provided with the guide channel 16 with connection chamber 13 conductings, be provided with discharge channel 17 in this guide channel 16 with extraneous conducting, the sensitive switch 18 that is provided with formation discharge channel 17 and guide channel 16 conductings between discharge channel 17 and the guide channel 16 or closes, described discharge channel 17 and guide channel 16 conductings constitute the release of connection chamber 13, diaphragm 14 and set up assembly 15 and on connection chamber 13, move, connection chamber 13 is communicated with medium inlet passage 111 and medium flow pass 112, constitute the conducting of medium inlet passage 111 and medium flow pass 112, described discharge channel 17 is closed with guide channel 16, diaphragm 14 sealing connection chambers 13, constitute closing of medium inlet passage 111 and medium flow pass 112. no matter be arranged so that the great valve of bore like this, pressure in the connection chamber 13 is not if laid down, and valve just can't be unlocked; Otherwise, only need turn sensitive switch 18, make discharge channel 17 and conductive channel 16 conductings, just can be with the pressure removal in the connection chamber 13, easy to operate, and also laborsaving, need not to expend great amount of manpower, save manpower and material resources, reduced cost of production; And the speed of opening and closing is fast, having improved manufacturing efficiency. diaphragm 14 includes and connects sealing surface 141 and compression face 142, the connection sealing surface 141 of diaphragm 14 is pressed and is located between valve gap 2 and the valve body 1, and be tightly connected between valve gap 2 and the valve body 1, guaranteed the sealability of diaphragm 14, preventing pressure from unloading Lou and influence the normal unlatching of valve body or close. sensitive switch 18 is for being revealed in the outer knob of valve body 1, the end that this knob extends between discharge channel 17 and the guide channel 16 is provided with sealing gasket 181, the sealing gasket 181 of sensitive switch 18 is blocked rear valve body 1 with discharge channel 17 and guide channel 16 and just is in closed condition, otherwise, sealing gasket 181 breaks away from discharge channel 17 and guide channel 16, then valve body 1 just can be implemented to open, such sealing and control mode are simple, easy to operate, only need fine motion just can implement.
As Fig. 1, Fig. 2, Fig. 3, Fig. 4, shown in Figure 5, in the embodiment of the invention 1, the cross section of the compression face 142 of diaphragm 14 is the flat setting, setting up assembly 15 includes and is in the springs 151 of conflicting with the compression faces 142 of diaphragm 14 in the connection chamber 13, with diaphragm 14 carriage 153 that the travel(l)ing rest 152 that moves and diaphragm 14 be oppositely arranged travel(l)ing rest one end place of fitting, be evenly equipped with some through holes 1531 on the carriage 153, being provided with of carriage 153 and travel(l)ing rest 152 is respectively for fixing diaphragm 14, prevent its distortion or be distorted and have influence on the normal unlatching of valve or close, the setting of through hole 1531 is in order to allow medium conflict diaphragm 14 on the carriage 153, and valve seat 12 is the connecting base between medium inlet passage 111 and the connection chamber 13.
As Fig. 6, Fig. 7, Fig. 8, Fig. 9, shown in Figure 10, in the embodiment of the invention 2, the cross section of the compression face 142 of diaphragm 14 is provided with towards connection chamber 13 projectioies, set up assembly 15 include be in the connection chamber 13 with diaphragm 14 compression face 142 spring 151 of conflicting, with the mobile arc travel(l)ing rest 154 of diaphragm 14 applyings, described diaphragm 14 is formed by two, be folded with hard steel plate 155 between two diaphragms 14, be provided with like this and strengthened being stressed of diaphragm 14, can prevent that diaphragm 14 pressurizeds from breaking, extended the working life of diaphragm 14, valve seat 12 is the connecting base between medium flow pass 112 and the connection chamber 13.
Among the utility model embodiment 1 and 2 according to MEDIA FLOW to difference, diaphragm 14 can be by difform stent support.
In the embodiment of the invention 1 and 2, spring 151 used between diaphragm 14 and the valve gap 2 is a volute spring, includes big end 1511 and small end 1512, and its big end 1511 is conflicted with diaphragm 14, and small end 1512 is conflicted with valve gap 2.It is bigger to adopt volute spring to make that spring 151 compresses the pressure of an end of diaphragm 14, has strengthened the dynamics that compresses of spring 151, has improved the sealing of diaphragm 14.Certainly, need to prove that the spring that adopts common cross section to be column also is feasible.
Claims (6)
1. heavy caliber membrane valve in the little Torque Control, include valve body and valve gap, be provided with the valve road in the described valve body, valve seat and spool, described valve road includes medium inlet passage and medium flow pass, it is characterized in that: be provided with connection chamber between described valve gap and the valve body for medium inlet passage and the conducting of medium flow pass, described spool is the assembly that sets up of diaphragm and diaphragm, diaphragm and set up assembly and place between medium inlet passage and medium flow pass and the connection chamber, and touch with valve seat and to close, diaphragm is provided with some pilot holes towards the end face of medium inlet passage part, described valve body is provided with the guide channel with the connection chamber conducting, be provided with discharge channel in this guide channel with extraneous conducting, the sensitive switch that is provided with formation discharge channel and guide channel conducting between discharge channel and the guide channel or closes, described discharge channel and guide channel conducting constitute the release of connection chamber, diaphragm and set up assembly and on connection chamber, move, connection chamber and medium inlet passage and medium flow out channel connection, constitute the conducting of medium inlet passage and medium flow pass, described discharge channel and guide channel are closed, diaphragm sealing connection chamber constitutes closing of medium inlet passage and medium flow pass.
2. heavy caliber membrane valve in the little Torque Control according to claim 1, it is characterized in that: described diaphragm includes and connects sealing surface and compression face, the connection sealing surface of diaphragm is pressed and is located between valve gap and the valve body, the cross section of the compression face of diaphragm is the flat setting, the described assembly that sets up includes and is in the spring of conflicting with the compression face of diaphragm in the connection chamber, the carriage that travel(l)ing rest that fit to move with diaphragm and diaphragm are oppositely arranged travel(l)ing rest one end place, be evenly equipped with some through holes on the carriage, described valve seat is the connecting base between medium inlet passage and the connection chamber, described sensitive switch is to be revealed in the outer knob of valve body, and the end that this knob extends between discharge channel and the guide channel is provided with sealing gasket.
3. heavy caliber membrane valve in the little Torque Control according to claim 1, it is characterized in that: described diaphragm includes and connects sealing surface and compression face, the connection sealing surface of diaphragm is pressed and is located between valve gap and the valve body, the cross section of the compression face of diaphragm is provided with towards the connection chamber projection, the described assembly that sets up includes to be in the connection chamber and gets the spring that compression face is conflicted with diaphragm, with the mobile arc travel(l)ing rest of diaphragm applying, described diaphragm is formed by two, be folded with the hard steel plate between two diaphragms, described valve seat is the connecting base between medium flow pass and the connection chamber, described sensitive switch is to be revealed in the outer knob of valve body, and the end that this knob extends between discharge channel and the guide channel is provided with sealing gasket.
4. according to heavy caliber membrane valve in claim 2 or the 3 described little Torque Control, it is characterized in that: described spring is a volute spring, includes big end and small end, and its big end and diaphragm are conflicted, and small end and valve gap are conflicted.
5. according to heavy caliber membrane valve in claim 1 or the 2 or 3 described little Torque Control, it is characterized in that: described sensitive switch transmits display operation by signal by driving mechanisms control between driving mechanism and the backstage indication mechanism.
6. heavy caliber membrane valve in the little Torque Control according to claim 5 is characterized in that: described driving mechanism is the micro motor solenoid valve, and the backstage indication mechanism is display screen and the background processor that is connected with the micro motor solenoid valve.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910153829A CN101706007A (en) | 2009-11-12 | 2009-11-12 | Diaphragm valve with middle and large caliber controlled by small moment |
| PCT/CN2010/078545 WO2011057554A1 (en) | 2009-11-12 | 2010-11-09 | Membrane valve with medium or large caliber controlled by low moment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910153829A CN101706007A (en) | 2009-11-12 | 2009-11-12 | Diaphragm valve with middle and large caliber controlled by small moment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101706007A true CN101706007A (en) | 2010-05-12 |
Family
ID=42376251
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910153829A Pending CN101706007A (en) | 2009-11-12 | 2009-11-12 | Diaphragm valve with middle and large caliber controlled by small moment |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN101706007A (en) |
| WO (1) | WO2011057554A1 (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101832397A (en) * | 2010-05-18 | 2010-09-15 | 温州市鹿城新鹿水处理自控设备厂 | Micro-control frictionless valve |
| CN101956829A (en) * | 2010-10-27 | 2011-01-26 | 温州市鹿城新鹿水处理自控设备厂 | Micro-control flow regulating valve |
| WO2011057554A1 (en) * | 2009-11-12 | 2011-05-19 | Chen Jiuting | Membrane valve with medium or large caliber controlled by low moment |
| CN103185171A (en) * | 2011-12-30 | 2013-07-03 | 泰思康公司 | Apparatus to visually indicate a leak from a relief valve |
| CN103574091A (en) * | 2013-10-24 | 2014-02-12 | 陈久挺 | Valve assembly suitable for sea floors |
| CN111396593A (en) * | 2019-01-03 | 2020-07-10 | 浙江三花制冷集团有限公司 | Pilot-operated type electromagnetic valve |
| CN115263747A (en) * | 2022-06-29 | 2022-11-01 | 杭州力夫机电制造有限公司 | Pressure relief structure |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103867745B (en) * | 2014-03-21 | 2016-06-22 | 陈久挺 | Deep sea pneumatic controls valve |
| CN108339949A (en) * | 2017-05-04 | 2018-07-31 | 天津中德应用技术大学 | Penetrate sand cylinder |
| CN113007030B (en) * | 2019-12-19 | 2023-05-05 | 新疆金风科技股份有限公司 | Tower, forming method, wind generating set and protective cover |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2347015Y (en) * | 1998-11-02 | 1999-11-03 | 乐清市东达电子有限公司 | Electromagnetic controlled diaphragm valve |
| CN2876468Y (en) * | 2004-07-23 | 2007-03-07 | 黄仲强 | Guiding type electric cut-off valve |
| CN201090776Y (en) * | 2007-10-19 | 2008-07-23 | 宁波华成阀门有限公司 | Electromagnetic control cut-off valve |
| CN201310638Y (en) * | 2008-12-17 | 2009-09-16 | 宁波华成阀门有限公司 | Pilot-operated magnetic valve |
| CN201666388U (en) * | 2009-11-12 | 2010-12-08 | 陈久挺 | Middle-large aperture diaphragm valve controlled by small moment |
| CN101706007A (en) * | 2009-11-12 | 2010-05-12 | 陈久挺 | Diaphragm valve with middle and large caliber controlled by small moment |
-
2009
- 2009-11-12 CN CN200910153829A patent/CN101706007A/en active Pending
-
2010
- 2010-11-09 WO PCT/CN2010/078545 patent/WO2011057554A1/en active Application Filing
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011057554A1 (en) * | 2009-11-12 | 2011-05-19 | Chen Jiuting | Membrane valve with medium or large caliber controlled by low moment |
| CN101832397A (en) * | 2010-05-18 | 2010-09-15 | 温州市鹿城新鹿水处理自控设备厂 | Micro-control frictionless valve |
| CN101832397B (en) * | 2010-05-18 | 2012-05-09 | 温州市鹿城新鹿水处理自控设备厂 | Micro-control frictionless valve |
| CN101956829A (en) * | 2010-10-27 | 2011-01-26 | 温州市鹿城新鹿水处理自控设备厂 | Micro-control flow regulating valve |
| CN103185171A (en) * | 2011-12-30 | 2013-07-03 | 泰思康公司 | Apparatus to visually indicate a leak from a relief valve |
| CN103574091A (en) * | 2013-10-24 | 2014-02-12 | 陈久挺 | Valve assembly suitable for sea floors |
| CN103574091B (en) * | 2013-10-24 | 2016-04-20 | 陈久挺 | Be applicable to the valve assembly in seabed |
| CN111396593A (en) * | 2019-01-03 | 2020-07-10 | 浙江三花制冷集团有限公司 | Pilot-operated type electromagnetic valve |
| CN115263747A (en) * | 2022-06-29 | 2022-11-01 | 杭州力夫机电制造有限公司 | Pressure relief structure |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2011057554A1 (en) | 2011-05-19 |
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| PB01 | Publication | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20100512 |