CN203477465U - Corridor pressure adjusting box - Google Patents
Corridor pressure adjusting box Download PDFInfo
- Publication number
- CN203477465U CN203477465U CN201320535829.2U CN201320535829U CN203477465U CN 203477465 U CN203477465 U CN 203477465U CN 201320535829 U CN201320535829 U CN 201320535829U CN 203477465 U CN203477465 U CN 203477465U
- Authority
- CN
- China
- Prior art keywords
- pressure
- valve
- cut
- corridor
- cutting
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Safety Valves (AREA)
Abstract
The utility model relates to corridor gas equipment, in particular to a gas pressure adjusting box used in a corridor, and discloses a corridor pressure adjusting box which comprises an aluminum manifold. A gas incoming ball valve is connected with the aluminum manifold which is further connected with a gas outgoing ball valve, the interior of the aluminum manifold is divided into two parts including a gas incoming cavity and a gas outgoing cavity by a valve port, an upper end face of the valve port is matched with a valve clack of a pressure adjusting valve, and a lower end face of the valve port is matched with a valve clack of a stop valve. According to the technical scheme, incoming, outgoing, filtering and depressurizing of gas in the aluminum manifold are completed, a gas source enters the aluminum manifold through instructions of arrows, the aluminum manifold is in a structural form of lower-incoming and upper-outgoing, the valve port is a two-way valve port structurally, in other words, cutting-off and pressure adjusting share one valve port, the lower end of the valve port is a cutting-off face while the upper end of the same is a pressure adjusting face, and the valve port plays roles in gas feeding, pressure adjusting and cutting-off. According to the design mode, the pressure adjusting valve and the cutting-off valve are designed at a same valve port, so that size of the corridor pressure adjusting box is reduced.
Description
Technical field
The utility model relates to a kind of corridor gas-fired equipment, relates in particular to the fuel gas pressure-regulating box that a kind of corridor is used.
Background technique
Fuel gas pressure-regulating box refers to by pressure governor and accessory thereof and Piping component and forms, the regulator by the Pressure Drop of higher city gas to required lower pressure.Fuel gas pressure-regulating box is the key equipment of fuel gas transportation pipeline.The Main Function of pressure-regulating box is to regulate and stable system pressure, and controls gas transmission system gas flow, and protective system is in order to avoid outlet pressure is too high or too low.
Pressure regulator valve in the most pressure-regulating box arranging in existing corridor and cut-off valve are independently parts of separately two, and then assembly and connection gets up.Such equipment connection will cause bulky in fuel gas pressure-regulating box, and complexity is set, and is unfavorable for that the such space of corridor used.
Model utility content
The utility model, for the bulky deficiency of the pressure-regulating box using in corridor in prior art, provides a kind of novel corridor pressure-regulating box.
In order to solve the problems of the technologies described above, the utility model is solved by following technical proposals:
Corridor pressure-regulating box, comprise aluminium header, air inlet ball valve connects aluminium header, aluminium header connects the ball valve of giving vent to anger again, it is air inlet chamber and the chamber of giving vent to anger that the inside of aluminium header is divided into two parts by valve port, the top end face of valve port coordinates with the flap of pressure regulator valve, and the below end face of valve port coordinates with the flap of cut-off valve.
Combustion gas completes turnover, filters and decompression in aluminium header.Source of the gas enters in aluminium header by the indication of arrow, and the mode of structure of aluminium header is bottom in and top out, and the structure of valve port is two-way valve port, i.e. cut-out and pressure regulation is same with a valve port, lower end is section, and upper end is pressure regulation face, valve port act as ventilation, pressure regulation and cut-out.When give vent to anger chamber and combustion gas downstream thereof, break down and cause pressure to increase little time, increase the gas output of valve port by pressure regulator valve, make to give vent to anger chamber and combustion gas downstream pressure thereof increase, and tend to balance.When give vent to anger chamber and combustion gas downstream thereof, break down when causing pressure to increase, reduces the gas output of valve port by pressure regulator valve, make to give vent to anger chamber and the minimizing of combustion gas downstream pressure thereof, tend to balance.When give vent to anger chamber and combustion gas downstream thereof, break down when causing pressure to increase, when the increase value of pressure is greater than the safety value of cut-off valve, cut-off valve cuts out valve port.Aluminium header is the pipeline of laterally putting, and the homonymy at two ends is respectively equipped with suction port and air outlet, connects respectively air inlet ball valve and the ball valve of giving vent to anger.Suction port and air outlet are arranged on homonymy and make structure compacter.
As preferably, the indoor filter core that is provided with of the air-inlet cavity of aluminium header.Filter core is arranged on and suction port relative position.By filter core, filter out the impurity in combustion gas, cleaning of protection downstream combustion gas, protects gas pressure regulator, governor.
As preferably, the outdoor pressure gauge that is equipped with of the air-inlet cavity of aluminium header, for measuring the air pressure of air inlet chamber.
As preferably, the outdoor pressure release mouth that is equipped with of the outlet chamber of aluminium header.Avoid the pressure of this chamber excessive, reach the object of safety relief.The effect of pressure release mouth is in testing process, to measure mouth pressure, cut-out pressure, and the height of closing pressure, in the process of using, just first needs the source of the gas in downstream to get rid of totally user in the situation of cut-out, could recover the effect of cutting off.
As preferably, the inside of the ball valve seat of air inlet ball valve is provided with ball valve, and ball valve is controlled folding by valve rod, and the bottom of ball valve seat is connected with other passages by being flexibly connected a silk flange.
As preferably, the structure of give vent to anger ball valve and air inlet ball valve is consistent.
As preferably, the cut-out flap of cut-off valve coordinates with the lower end surface of valve port, the feedback pressure suction port of cut-off valve communicates with the chamber of giving vent to anger, feedback pressure suction port leads to the feedback pressure chamber in cut-off valve lower casing, the movable isolation surface of feedback pressure chamber is for cutting off epithelium, the another side that cuts off epithelium connects cut-out lever, cut-out lever cross is put, the other end that cuts off lever coordinates cut-out spring, cutting off the spring the other end coordinates with cutting-off pressure-regulating device, cut off on lever and be also provided with straight pin, straight pin is stuck in the draw-in groove cutting off on pull bar, cutting off pull bar is connected with cut-out flap through cut-off valve lower casing, between the bottom of cut-out flap and cut-off valve lower casing, be provided with Returnning spring, in the time of normal state, straight pin is stuck in the draw-in groove cutting off on pull bar, cut-out draw rod positions is fixed, Returnning spring is in compressive state.
When give vent to anger chamber and downstream thereof, break down, when causing pressure to increase, by feedback pressure suction port, feedback pressure chamber pressure increases simultaneously, makes to cut off epithelium and outwards expands, and drives cut-out lever to move to left, and spring is cut off in compression.When the pressure increasing is greater than the safety value of cut-off valve setting, cut-out lever moves to left, make the straight pin on it depart from the draw-in groove cutting off on pull bar, now cut off pull bar in free state, Returnning spring in compressive state resets, the restriction of receiving cut-off valve lower casing due to bottom, Returnning spring can produce power upwards, to cut off upwards top of flap, the lower end surface that cuts off flap and valve port closely cooperates, and cuts off close port completely.By the setting of cutting-off pressure-regulating device and cut-out spring, can change the size of cut-out pressure.
As preferably, the pressure regulation flap of pressure regulator valve coordinates with the upper-end surface of valve port, pressure regulator valve comprises pressure regulator valve upper casing and pressure regulator valve lower casing, between pressure regulator valve upper casing and pressure regulator valve lower casing, by pressure regulation epithelium, be isolated into two chambers, pressure regulator valve lower casing is provided with pressure signal tube, pressure signal tube is communicated with give vent to anger chamber and pressure regulator valve lower chambers, on pressure regulation epithelium, be fixedly connected with connecting rod, connecting rod is connected with pressure adjusting spring through pressure regulation epithelium, the other end of pressure adjusting spring is enclosed within pressure regulation beyond the Great Wall, pressure regulation plug is fixedly connected on pressure regulator valve upper casing, be positioned at the hinged pull bar of end of the connecting rod of pressure regulator valve lower chambers, the other end of the pull bar pressure regulation flap that is articulated and connected, in the middle of pull bar, being provided with fulcrum with pressure regulator valve lower casing is fixedly hinged, pull bar can be around a spot wobble.
In the time of normal state, the pressure of pressure regulator valve upper chamber and lower chambers inside is equal, and in state of equilibrium, spring is in the normal state.When give vent to anger chamber and downstream thereof, break down, when causing pressure to increase, by pressure signal tube, the pressure of pressure regulator valve lower chambers is increased, and pressure regulation epithelium upwards expands, and pressure adjusting spring is compressed, drivening rod upwards moves, connecting rod drives on pull bar and moves, and pull bar just moves down around the other end of fulcrum, just drives pressure regulation flap to move down, make the openings get smaller between pressure regulation flap and the upper-end surface of valve port, gas output reduces, and the pressure in reduce gradually to give vent to anger chamber and downstream, tends to balance gradually.
In like manner, when breaking down when give vent to anger chamber and downstream thereof, when causing pressure to reduce, by pressure signal tube, the pressure of pressure regulator valve lower chambers is reduced, because the pressure of upper chamber is greater than the pressure of lower chambers, pressure regulation epithelium expands downwards, and pressure adjusting spring is stretched, drivening rod is to moving down, connecting rod drives pull bar to move down, and pull bar moves on just around the other end of fulcrum, just drives on pressure regulation flap and moves, make the opening between pressure regulation flap and the upper-end surface of valve port become large, gas output increases, and increases gradually the pressure in give vent to anger chamber and downstream, tends to balance gradually.
According to the corridor pressure-regulating box of the technical solution of the utility model, combustion gas completes turnover, filters and decompression in aluminium header.Source of the gas enters in aluminium header by the indication of arrow, and the mode of structure of aluminium header is bottom in and top out, and the structure of valve port is two-way valve port, i.e. cut-out and pressure regulation is same with a valve port, lower end is section, and upper end is pressure regulation face, valve port act as ventilation, pressure regulation and cut-out.This kind of design, designs pressure regulator valve and cut-off valve at same valve port, reduces the volume of corridor pressure-regulating box.
Accompanying drawing explanation
Fig. 1 is the structural representation of corridor pressure-regulating box of the present utility model.
Fig. 2 is the aluminium header structural representation of corridor pressure-regulating box of the present utility model.
Fig. 3 is the ball-valve structure schematic diagram of corridor pressure-regulating box of the present utility model.
Fig. 4 is the cut-off valve structural representation of corridor pressure-regulating box of the present utility model.
Fig. 5 is the pressure regulator valve structural representation of corridor pressure-regulating box of the present utility model.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the utility model is described in further detail:
The air inlet ball valve 20 of corridor pressure-regulating box connects aluminium header 10, and aluminium header 10 connects the ball valve 30 of giving vent to anger again, and it is air inlet chamber and the chamber of giving vent to anger that the inside of aluminium header 10 is divided into two parts by valve port 102.The top end face of valve port 102 coordinates with the flap of pressure regulator valve 50, and the below end face of valve port 102 coordinates with the flap of cut-off valve 40.When give vent to anger chamber and combustion gas downstream thereof, break down and cause pressure to increase little time, increase the gas output of valve ports 102 by pressure regulator valve 50, make to give vent to anger chamber and combustion gas downstream pressure thereof increase, and tend to balance.When give vent to anger chamber and combustion gas downstream thereof, break down when causing pressure to increase, reduce the gas output of valve ports 102 by pressure regulator valve 50, make to give vent to anger chamber and combustion gas downstream pressure thereof reduce, and tend to balance.When give vent to anger chamber and combustion gas downstream thereof, break down when causing pressure to increase, when the increase value of pressure is greater than the safety value of cut-off valve 40, cut-off valve 40 cuts out valve port 102.
Combustion gas completes turnover, filters and decompression in aluminium header 10.Source of the gas enters in aluminium header 10 by the indication of arrow, by filter core 101, filters out the impurity in combustion gas, and cleaning of protection downstream combustion gas, protects gas pressure regulator, governor.The mode of structure of aluminium header 10 is bottom in and top out, and the structure of valve port 102 is two-way valve port 102, cut off and pressure regulation together with a valve port, lower end is section, upper end is pressure regulation face, valve port 102 act as ventilation, pressure regulation and cut-out.
Air inlet ball valve 20 is consistent with the structure of the ball valve 30 of giving vent to anger, and the inside of ball valve seat 201 is provided with ball valve 202, and ball valve 202 is controlled folding by valve rod 203.The bottom of ball valve seat 201 is connected with other passages by being flexibly connected silk flange 204.
The cut-out flap 409 of cut-off valve 40 coordinates with the lower end surface of valve port 102.The feedback pressure suction port 401 of cut-off valve 40 communicates with the chamber of giving vent to anger, and feedback pressure suction port 401 leads to the feedback pressure chamber in cut-off valve lower casing 402, and the movable isolation surface of feedback pressure chamber is for cutting off epithelium 403.Cut off the another side connection of epithelium 403 and cut off lever 405, cut off lever 405 and laterally put, the other end that cuts off lever 405 coordinates cut-out spring 407, cuts off spring 407 the other ends and coordinates with cutting-off pressure-regulating device 410.Cut off on lever 405 and be also provided with straight pin, straight pin is stuck in the draw-in groove cutting off on pull bar 406.Cutting off pull bar 406 is connected with cut-out flap 409 through cut-off valve lower casing 402, between the bottom of cut-out flap 409 and cut-off valve lower casing 402, be provided with Returnning spring 408, in the time of normal state, straight pin is stuck in the draw-in groove cutting off on pull bar 406, cut off pull bar 406 positions and fix, Returnning spring 408 is in compressive state.
When give vent to anger chamber and downstream thereof, break down, when causing pressure to increase, by feedback pressure suction port 401, feedback pressure chamber pressure increases simultaneously, makes to cut off epithelium 403 and outwards expands, and drives cut-out lever 405 to move to left, and spring 407 is cut off in compression.When the pressure increasing is greater than the safety value of cut-off valve 40 settings, cutting off lever 405 moves to left, make the straight pin on it depart from the draw-in groove cutting off on pull bar 406, now cut off pull bar 406 in free state, Returnning spring in compressive state 408 resets, the restriction of receiving cut-off valve lower casing 402 due to bottom, Returnning spring 402 can produce power upwards, to cut off upwards top of flap 409, and cut off flap 402 and closely cooperate with the lower end surface of valve port 102, cut off close port 102 completely.By the setting of cutting-off pressure-regulating device 410 and cut-out spring 407, can change the size of cut-out pressure.
The pressure regulation flap 506 of pressure regulator valve 50 coordinates with the upper-end surface of valve port 102.Pressure regulator valve 50 comprises pressure regulator valve upper casing 507 and pressure regulator valve lower casing 502, between pressure regulator valve upper casing 507 and pressure regulator valve lower casing 502, by pressure regulation epithelium 503, is isolated into two chambers.Pressure regulator valve lower casing 502 is provided with pressure signal tube 501, and pressure signal tube 501 is communicated with give vent to anger chamber and pressure regulator valve lower chambers.On pressure regulation epithelium 503, be fixedly connected with connecting rod 504, connecting rod 504 is connected with pressure adjusting spring 508 through pressure regulation epithelium 503, and the other end of pressure adjusting spring 508 is enclosed within on pressure regulation plug 509, and pressure regulation plug 509 is fixedly connected on pressure regulator valve upper casing 507.In the time of normal state, the pressure of pressure regulator valve upper chamber and lower chambers inside is equal, and in state of equilibrium, spring is in the normal state.Be positioned at the hinged pull bar 505 of end of the connecting rod 504 of pressure regulator valve lower chambers, the other end of the pull bar 505 pressure regulation flap 506 that is articulated and connected, is provided with fulcrum with pressure regulator valve lower casing 502 in the middle of pull bar 505 and is fixedly hinged, and, pull bar 505 can be around a spot wobble.
When giving vent to anger, break down in chamber and downstream thereof, when causing pressure to increase, by pressure signal tube 501, the pressure of pressure regulator valve lower chambers is increased, pressure regulation epithelium 503 upwards expands, pressure adjusting spring 508 is compressed, drivening rod 504 upwards moves, connecting rod 504 drives on pull bar 505 and moves, and pull bar 505 just moves down around the other end of fulcrum, just drives pressure regulation flap 506 to move down, make the openings get smaller between pressure regulation flap 506 and the upper-end surface of valve port 102, gas output reduces, and the pressure in reduce gradually to give vent to anger chamber and downstream, tends to balance gradually.
In like manner, when breaking down when give vent to anger chamber and downstream thereof, when causing pressure to reduce, by pressure signal tube 501, the pressure of pressure regulator valve lower chambers is reduced, because the pressure of upper chamber is greater than the pressure of lower chambers, pressure regulation epithelium 503 expands downwards, pressure adjusting spring 508 is stretched, drivening rod 504 is to moving down, connecting rod 504 drives pull bar 505 to move down, pull bar 505 moves on just around the other end of fulcrum, just drive on pressure regulation flap 506 and move, make the opening between pressure regulation flap 506 and the upper-end surface of valve port 102 become large, gas output increases, increase gradually the pressure in give vent to anger chamber and downstream, tend to balance gradually.
In a word, the foregoing is only preferred embodiment of the present utility model, all equalizations of doing according to the utility model claim change and modify, and all should belong to the covering scope of the utility model patent.
Claims (8)
1. corridor pressure-regulating box, comprise aluminium header (10), air inlet ball valve (20) connects aluminium header (10), aluminium header (10) connects the ball valve (30) of giving vent to anger again, it is characterized in that: it is air inlet chamber and the chamber of giving vent to anger that the inside of aluminium header (10) is divided into two parts by valve port (102), the top end face of valve port (102) coordinates with the flap of pressure regulator valve (50), and the below end face of valve port (102) coordinates with the flap of cut-off valve (40).
2. corridor pressure-regulating box according to claim 1, is characterized in that: the indoor filter core (101) that is provided with of air-inlet cavity of aluminium header (10).
3. corridor pressure-regulating box according to claim 2, is characterized in that: the outdoor pressure gauge (103) that is equipped with of air-inlet cavity of aluminium header (10), and for measuring the air pressure of air inlet chamber.
4. corridor pressure-regulating box according to claim 3, is characterized in that: the outdoor pressure release mouth (104) that is equipped with of outlet chamber of aluminium header (10).
5. corridor pressure-regulating box according to claim 1, it is characterized in that: the inside of the ball valve seat (201) of air inlet ball valve (20) is provided with ball valve (202), ball valve (202) is controlled folding by valve rod (203), and the bottom of ball valve seat (201) is connected with other passages by being flexibly connected silk flange (204).
6. corridor pressure-regulating box according to claim 1 or 5, is characterized in that: the ball valve of giving vent to anger (30) is consistent with the structure of air inlet ball valve (20).
7. corridor pressure-regulating box according to claim 1, it is characterized in that: the cut-out flap (409) of cut-off valve (40) coordinates with the lower end surface of valve port (102), the feedback pressure suction port (401) of cut-off valve (40) communicates with the chamber of giving vent to anger, feedback pressure suction port (401) leads to the feedback pressure chamber in cut-off valve lower casing (402), the movable isolation surface of feedback pressure chamber is for cutting off epithelium (403), the another side that cuts off epithelium (403) connects cut-out lever (405), cutting off lever (405) laterally puts, the other end that cuts off lever (405) coordinates cut-out spring (407), cutting off spring (407) the other end coordinates with cutting-off pressure-regulating device (410), cut off on lever (405) and be also provided with straight pin, straight pin is stuck in the draw-in groove cutting off on pull bar (406), cutting off pull bar (406) is connected with cut-out flap (409) through cut-off valve lower casing (402), between the bottom of cut-out flap (409) and cut-off valve lower casing (402), be provided with Returnning spring (408), in the time of normal state, straight pin is stuck in the draw-in groove cutting off on pull bar (406), cutting off pull bar (406) position fixes, Returnning spring (408) is in compressive state.
8. corridor pressure-regulating box according to claim 1, it is characterized in that: the pressure regulation flap (506) of pressure regulator valve (50) coordinates with the upper-end surface of valve port (102), pressure regulator valve (50) comprises pressure regulator valve upper casing (507) and pressure regulator valve lower casing (502), between pressure regulator valve upper casing (507) and pressure regulator valve lower casing (502), by pressure regulation epithelium (503), be isolated into two chambers, pressure regulator valve lower casing (502) is provided with pressure signal tube (501), pressure signal tube (501) is communicated with give vent to anger chamber and pressure regulator valve lower chambers, on pressure regulation epithelium (503), be fixedly connected with connecting rod (504), connecting rod (504) is connected with pressure adjusting spring (508) through pressure regulation epithelium (503), the other end of pressure adjusting spring (508) is enclosed within on pressure regulation plug (509), pressure regulation plug (509) is fixedly connected on pressure regulator valve upper casing (507), be positioned at the hinged pull bar of end (505) of the connecting rod (504) of pressure regulator valve lower chambers, the other end of pull bar (505) the pressure regulation flap (506) that is articulated and connected, in the middle of pull bar (505), being provided with fulcrum with pressure regulator valve lower casing (502) is fixedly hinged, pull bar (505) can be around a spot wobble.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320535829.2U CN203477465U (en) | 2013-08-30 | 2013-08-30 | Corridor pressure adjusting box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320535829.2U CN203477465U (en) | 2013-08-30 | 2013-08-30 | Corridor pressure adjusting box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203477465U true CN203477465U (en) | 2014-03-12 |
Family
ID=50225796
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320535829.2U Expired - Fee Related CN203477465U (en) | 2013-08-30 | 2013-08-30 | Corridor pressure adjusting box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203477465U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104197200B (en) * | 2014-08-15 | 2016-11-23 | 大丰市大昌燃气设备有限公司 | A kind of combustion gas building regulation boxes and using method thereof |
| CN112254012A (en) * | 2020-09-30 | 2021-01-22 | 重庆瑞力比燃气设备有限责任公司 | Intelligent control's gas pressure regulating box |
-
2013
- 2013-08-30 CN CN201320535829.2U patent/CN203477465U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104197200B (en) * | 2014-08-15 | 2016-11-23 | 大丰市大昌燃气设备有限公司 | A kind of combustion gas building regulation boxes and using method thereof |
| CN112254012A (en) * | 2020-09-30 | 2021-01-22 | 重庆瑞力比燃气设备有限责任公司 | Intelligent control's gas pressure regulating box |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203477465U (en) | Corridor pressure adjusting box | |
| CN202250869U (en) | Gas circuit control system of screw compressor | |
| CN105727405A (en) | Airborne molecular sieve oxygen system | |
| CN201487228U (en) | Gas high-pressure cut-off valve | |
| CN202851198U (en) | Double piston type gas pressure reducing regulator for vehicles | |
| CN201487227U (en) | Direct-acting gas pressure regulator with self safety stop valve | |
| CN202884174U (en) | Self-adaption double-air-source valve | |
| CN1181898C (en) | Pneuamtic device for positive pressure oxygen respirator | |
| CN203067877U (en) | Pressure reducing valve | |
| CN205938020U (en) | Safety is diffused, a safety cut -off balanced valve formula building gas pressure regulator | |
| CN205840604U (en) | A kind of automatic window device | |
| CN201884738U (en) | Double-piston balanced type voltage regulator | |
| CN208442342U (en) | A kind of breathing balanced type voltage regulator | |
| CN203477499U (en) | Pressure regulator | |
| CN204253217U (en) | Atmospheric pressure balanced type single-stage vehicle fuel pressure reducing regulator | |
| CN206183769U (en) | Medical second grade decompression cabinet | |
| CN202956599U (en) | Positive pressure ventilation control system | |
| CN215111288U (en) | Exhaust gas discharge pipeline air pressure balancing unit | |
| CN201954048U (en) | Integrated valve | |
| CN208153804U (en) | A kind of double loop Gas Pressure Regulating Equipment | |
| CN205207817U (en) | Case steady voltage gas pressure regulator | |
| CN208442307U (en) | A kind of threeway is without valve type gas safe diffusion valve living | |
| CN206487923U (en) | Lever pressure difference safety regulating valve | |
| CN208687049U (en) | A kind of high-voltage regulator | |
| CN205938028U (en) | Pressure regulating, cut off integrative full balanced type high pressure gas voltage regulator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140312 Termination date: 20140830 |
|
| EXPY | Termination of patent right or utility model |