CN210623717U - Self-protection low-temperature gas filling valve - Google Patents
Self-protection low-temperature gas filling valve Download PDFInfo
- Publication number
- CN210623717U CN210623717U CN201921543788.5U CN201921543788U CN210623717U CN 210623717 U CN210623717 U CN 210623717U CN 201921543788 U CN201921543788 U CN 201921543788U CN 210623717 U CN210623717 U CN 210623717U
- Authority
- CN
- China
- Prior art keywords
- sealing
- hole
- valve
- inner hole
- valve body
- 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.)
- Active
Links
Images
Abstract
The embodiment of the utility model discloses self preservation protects low temperature and adds pneumatic valve. The utility model discloses a self preservation protects low temperature and adds the pneumatic valve, include: the valve comprises a valve body, an adjusting piece, a sealing piece, a sliding rod and a spring; the valve body is provided with a first inner hole and a second inner hole, and the middle section of the first inner hole is provided with a runner groove; the adjusting piece is arranged in the first inner hole; the adjusting piece is provided with a plurality of flow passage holes; the adjusting piece is provided with a first sliding hole, and the sealing piece is provided with a first sealing hole; two ends of the sliding rod are respectively arranged in the first sliding hole and the first sealing hole in a penetrating mode; the sealing element is matched with the sealing end, so that when the sealing element is positioned in the part of the first inner hole without the runner groove, the first inner hole is not communicated with the second inner hole; the spring is sleeved on the sliding rod. The utility model discloses a self preservation protects low temperature and adds pneumatic valve simple structure, easy maintenance, can effectively realize the protection to the pipeline.
Description
Technical Field
The embodiment of the utility model provides a relate to machinery, especially relate to a self preservation protects low temperature and adds pneumatic valve.
Background
In the field of fluid mechanics, it is very common to control the delivery of fluids, and the most common way today is to bypass valves. When the valve is used for controlling fluid, a certain working pressure range often exists in a pipeline or a system, and when the fluid pressure is too high or the pipeline vibrates to cause impact on the pipeline or the system, the valve plays an important role as an important adjusting and protecting tool.
In the existing pipeline system, in order to protect the pipeline, a plurality of devices (such as a safety valve and the like) are often required to be used together to realize the protection and control functions. Under the condition, the adjusting and controlling cost is high, the structure is complex, once the pipeline system is damaged, the shutdown and the overhaul of the whole pipeline system are easily caused, and the operation and maintenance cost is high.
Disclosure of Invention
An object of the embodiment of the utility model is to provide a self preservation protects low temperature and adds pneumatic valve, to above-mentioned problem, this self preservation protects low temperature and adds pneumatic valve and can control the transmission of fluid (gas, liquid etc.) effectively, has simple structure, low, the convenient characteristics of regulation of maintenance cost.
The embodiment of the utility model provides a self preservation protects low temperature and adds pneumatic valve, include: the valve comprises a valve body, an adjusting piece, a sealing piece, a sliding rod and a spring;
the valve body is provided with a first inner hole and a second inner hole, the first inner hole is coaxially adjacent to the second inner hole, the diameter of the first inner hole is larger than that of the second inner hole, and the middle section of the first inner hole is provided with a runner groove;
a first inner thread is arranged in the first inner hole, a first outer thread is arranged on the adjusting piece, and the adjusting piece is arranged in the first inner hole through the screwing of the first inner thread and the first outer thread; the adjusting piece is provided with a plurality of flow passage holes;
the adjusting piece is provided with a first sliding hole, and the sealing piece is provided with a first sealing hole; the two ends of the sliding rod are respectively a sliding end and a sealing end; the sliding end is slidably arranged in the first sliding hole in a penetrating mode, and the sealing element is slidably arranged on the sealing end through the first sealing hole;
the sealing element is matched with the sealing end, so that when the sealing element is positioned in the part of the first inner hole without the runner groove, the first inner hole is not communicated with the second inner hole;
the spring is sleeved on the sliding rod, and two ends of the spring respectively abut against the sliding end and the sealing piece.
In this technical scheme, this self preservation protects low temperature adds pneumatic valve and has conducted or isolated control through the sealing member to both ends about the valve body, when the sealing member received the impetus from the fluid on right side, can have the trend of moving to the left side. When the pressure of the fluid on the right side of the sealing element is smaller (namely low pressure), the supporting force given by the spring to the sealing element is larger than the pressure given by the fluid to the sealing element, so that the left side and the right side of the valve body are isolated by the sealing element, and the fluid cannot flow from the right side to the left side; when the pressure of the fluid on the right side of the sealing element is in a preset range (namely, proper pressure), the pressure of the fluid on the sealing element and the elastic force of the spring act together to enable the sealing element to be positioned at the flow channel groove, so that the fluid can flow from the right side to the left side through the flow channel groove, and the fluid on the left side and the right side of the valve body is conducted; when the pressure of the fluid on the right side of the sealing element is higher (namely high pressure), the pressure of the fluid on the sealing element is higher, the spring is compressed by a larger distance, and therefore the sealing element slides to the left side of the flow channel groove, the left side and the right side of the sealing element are in a sealing state again, and the fluid cannot flow from the right side to the left side.
In a possible solution, the adjusting member is further provided with a clamping groove for screwing the adjusting member.
Through setting up the centre gripping groove, can make things convenient for the installation and the adjustment of regulating part.
In one possible solution, the valve body further comprises: mounting a flange plate;
the mounting flange plate is sleeved on the valve body, and a plurality of mounting holes are formed in the mounting flange plate.
Through setting up the installation ring flange, can make this valve body fix to provide the holding power for the installation of this self preservation protects low temperature gas filling valve and pipeline.
In one possible embodiment, the method further comprises: a sealing gasket;
the first sealing hole of the sealing element is provided with a sealing groove, and the sealing gasket is clamped in the sealing groove.
The purpose of the sealing washer is to improve the sealing effect on the left and right sides of the sealing element.
In a feasible scheme, the sliding end is further provided with a first clamp and a step, the adjusting piece is provided with a second clamping step, and the first clamping step is matched with the second clamping step and used for supporting and positioning the sliding rod.
The first clamping step and the second clamping step are arranged, so that the safety factor of the sliding rod can be improved, the damage possibility is reduced, and the maintenance cost is reduced.
In one possible embodiment, the method further comprises: a pressure relief valve;
the runner groove of the valve body is also provided with a first through hole vertical to the axis of the valve body, and the pressure relief valve is arranged in the first through hole.
The pressure relief valve can avoid damaging the valve body when the pressure is extremely high.
In one possible embodiment, the method further comprises: a pressure gauge;
the runner groove of the valve body is also provided with a second through hole vertical to the axis of the valve body, and the pressure gauge is arranged in the second through hole.
Through setting up the pressure gauge, can make things convenient for the user in time to observe fluidic pressure size, in time take measures, avoid causing the damage to self preservation protects low temperature gas filling valve.
In one possible embodiment, the method further comprises: a thermometer;
the runner groove of the valve body is also provided with a third through hole vertical to the axis of the valve body, and the thermometer is arranged in the third through hole.
The purpose of the thermometer is to facilitate the user to observe the temperature of the fluid, and to avoid the influence of the temperature on the quality of the transferred fluid and even the danger when transferring the cryogenic fluid.
Based on the scheme, the self-protection low-temperature gas filling valve in the embodiment of the invention can seal fluid under low pressure, the left side and the right side of the valve body are conducted when the pressure reaches a certain preset range, and the left side and the right side of the valve body are in a sealing state again when the pressure is too high, so that the pipeline is protected under the high-pressure condition. The self-protection low-temperature gas adding valve is simple in structure and convenient to maintain, and can effectively protect pipelines.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic view of the overall structure of a self-protection low-temperature gas filling valve under low pressure in an embodiment of the present invention;
FIG. 2 is a schematic view of the overall structure of the self-protection low-temperature gas filling valve under proper pressure according to the embodiment of the present invention;
fig. 3 is a schematic view of the overall structure of the self-protecting low-temperature gas filling valve under high pressure according to the embodiment of the present invention;
FIG. 4 is a left side view of the self-protecting low temperature gas filling valve in the embodiment of the present invention;
fig. 5 is a left side view of an adjusting member of the self-protecting low-temperature gas filling valve in the embodiment of the present invention;
fig. 6 is a right side view of the adjusting member of the self-protecting low-temperature gas filling valve in the embodiment of the present invention.
Reference numbers in the figures:
1. a valve body; 101. a first inner bore; 102. a second inner bore; 103. a runner groove; 104. a first through hole; 105. a second through hole; 2. an adjustment member; 201. a flow passage hole; 202. a first slide hole; 203. a clamping groove; 3. a seal member; 301. a first seal bore; 302. a sealing groove; 4. a slide bar; 5. a spring; 6. mounting a flange plate; 601. mounting holes; 7. a sealing gasket; 8. a pressure relief valve; 9. a pressure gauge; 10. a thermometer.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," "circumferential," and the like are used in the indicated orientations and positional relationships based on the drawings for convenience in describing and simplifying the description, but do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the invention.
In the present invention, unless otherwise specifically stated or limited, the terms "mounted," "connected," "fixed," and the like are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; the connection can be mechanical connection, electrical connection or communication connection; either directly or indirectly through intervening media, either internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The technical solution of the present invention will be described in detail below with specific examples. The following several specific embodiments may be combined with each other, and details of the same or similar concepts or processes may not be repeated in some embodiments.
Fig. 1 is the embodiment of the utility model provides an overall structure schematic diagram of low temperature air entrainment valve under low pressure is protected to self preservation, fig. 2 is the embodiment of the utility model provides an in the self preservation protect the overall structure schematic diagram of low temperature air entrainment valve under the moderate pressure, fig. 3 is the embodiment of the utility model provides an in the embodiment of the self preservation protect the overall structure schematic diagram of low temperature air entrainment valve under high pressure, fig. 4 is the embodiment of the utility model provides an in the embodiment of the self preservation protect the left view of low temperature air entrainment valve, fig. 5 is the embodiment of the utility model provides an in the embodiment of the self preservation protect the left view of the regulating part of low temperature air entrainment valve, fig.
As shown in fig. 1, a self-protection low-temperature gas filling valve comprises: valve body 1, adjusting piece 2, sealing member 3, sliding rod 4 and spring 5.
The valve body 1 is provided with a first inner hole 101 and a second inner hole 102, the first inner hole 101 is coaxially adjacent to the second inner hole 102, the diameter of the first inner hole 101 is larger than that of the second inner hole 102, and a runner groove 103 is arranged in the middle section of the first inner hole 101. It should be noted that the first bore 101 is used to accommodate the adjusting member 2, the second bore 102 is used to introduce the fluid to be controlled, and one of the functions of the adjusting member 2 is to adjust the magnitude of the elastic force of the spring 5 by adjusting the position.
Wherein, be equipped with first internal thread in the first hole 101, regulating part 2 is equipped with first external screw thread, and regulating part 2 sets up in first hole 101 through closing soon of first internal thread and first external screw thread. The adjusting member 2 is further provided with a plurality of flow passage holes 201. As shown in fig. 5, the adjuster 2 is provided with a plurality of flow passage holes 201, and the flow passage holes 201 are used for conducting the right and left sides of the adjuster 2.
Wherein the adjusting member 2 is provided with a first sliding hole 202, and the sealing member 3 is provided with a first sealing hole 301. The two ends of the sliding rod 4 are respectively a sliding end and a sealing end, the sliding end is slidably inserted into the first sliding hole 202, and the sealing element 3 is slidably disposed on the sealing end through the first sealing hole 301. As shown in fig. 1, the adjusting member 2, the sliding rod 4 and the sealing member 3 are combined in a linkage.
Wherein, the sealing member 3 is matched with the sealing end, so that when the sealing member 3 is positioned at the part of the first inner hole 101 without the runner groove 103, the first inner hole 101 is not communicated with the second inner hole 102. As shown in fig. 1 and 3, the seal 3 does not allow the first bore 101 and the second bore 102 to communicate.
Wherein, the spring 5 is sleeved on the sliding rod 4, and two ends of the spring 5 respectively support against the sliding end and the sealing element 3. The spring 5 is used for providing an elastic abutting force for the sealing element 3, so that the sealing element 3 can stretch and contract when receiving the pressure of fluid, and then the sealing element is matched with the runner groove 103, thereby realizing the conduction and the separation of the left end and the right end of the sealing element 3.
It can be easily found from the above description that, in this embodiment, as shown in fig. 1, the self-protection low-temperature gas filling valve controls the conduction or isolation of the left and right ends of the valve body 1 through the sealing member 3, and when the sealing member 3 is pushed by the fluid from the right side, the self-protection low-temperature gas filling valve tends to move to the left side. Specifically, as shown in fig. 1, when the pressure of the fluid received by the right side of the sealing member 3 is small (i.e., low pressure), the supporting force given to the sealing member 3 by the spring 5 is greater than the pressure given to the sealing member 3 by the fluid, so that the sealing member 3 blocks the left and right sides of the valve body 1, and the fluid cannot flow from the right side to the left side; as shown in fig. 2, when the pressure of the fluid received by the right side of the sealing member 3 is within a predetermined range (i.e. a proper pressure), the pressure of the fluid on the sealing member 3 and the elastic force of the spring 5 act together to make the sealing member 3 be located at the position of the flow channel groove 103, so that the fluid can flow from the right side to the left side through the flow channel groove 103, thereby realizing the fluid communication between the left side and the right side of the valve body 1; as shown in fig. 3, when the pressure of the fluid received at the right side of the sealing member 3 is higher (i.e., high pressure), the pressure of the fluid against the sealing member 3 is higher, and the spring 5 is compressed by a larger distance, so that the sealing member 3 slides to the left side of the flow channel groove 103, so that the left and right sides of the sealing member 3 are again in a sealed state, and the fluid cannot flow from the right side to the left side.
It can be seen that the self-protection low-temperature gas filling valve in this embodiment can seal fluid under low pressure, and when the pressure reaches a certain preset range, the left and right sides of the valve body 1 are conducted, and when the pressure is too high, the left and right sides of the valve body 1 are in a sealed state again, thereby realizing protection of a pipeline under a high-pressure condition. The self-protection low-temperature gas adding valve is simple in structure and convenient to maintain, and can effectively protect pipelines.
Optionally, as shown in fig. 4 and 5, in the present embodiment, in the self-protecting low-temperature gas filling valve, the adjusting member 2 is further provided with a clamping groove 203, and the clamping groove 203 is used for screwing the adjusting member 2. The cross section of the holding groove 203 here is a regular hexagon, but may be other shapes. Further, the shape of the flow path hole 201 is not necessarily the shape and position shown in fig. 4 and 5.
By providing the clamping groove 203, the installation and adjustment of the adjusting member 2 can be facilitated.
Optionally, in this embodiment, as shown in fig. 4, the valve body 1 in the self-protecting low-temperature gas filling valve further includes: and mounting a flange plate 6. The mounting flange 6 is sleeved on the valve body 1, and a plurality of mounting holes 601 are formed in the mounting flange 6.
The valve body 1 can be fixed by arranging the mounting flange 6, so that supporting force is provided for mounting the self-protection low-temperature gas adding valve and the pipeline.
Optionally, as shown in fig. 1, fig. 2 and fig. 3, in this embodiment, the self-protection low-temperature gas filling valve further includes: a sealing gasket 7. The first seal hole 301 of the seal 3 is provided with a seal groove 302, and the seal washer 7 is caught in the seal groove 302.
The purpose of the gasket 7 is to improve the sealing effect on the left and right sides of the seal 3.
Optionally, in this embodiment, in the self-protection low-temperature gas filling valve, the sliding end is further provided with a first clamp and a step, the adjusting member 2 is provided with a second clamping step, and the first clamping step is adapted to the second clamping step and is used for supporting and positioning the sliding rod 4.
Considering that when pressure is too big, probably make slide bar 4 atress too big, in order to avoid the damage of slide bar 4, set up first block step and second block step, can improve slide bar 4's factor of safety, reduce the damage possibility, reduce the maintenance cost.
Optionally, in this embodiment, the self-protection low-temperature gas filling valve further includes: a pressure relief valve 8. The runner groove 103 of the valve body 1 is also provided with a first through hole 104 vertical to the axis of the valve body 1, and the pressure release valve 8 is arranged in the first through hole 104. A possible relief valve 8 is shown in fig. 1 to 3, which relief valve 8 serves as prior art and has the function of avoiding damage to the valve body 1 in the event of particularly high pressures.
Optionally, in this embodiment, the self-protection low-temperature gas filling valve further includes: and a pressure gauge 9. The flow channel groove 103 of the valve body 1 is further provided with a second through hole 105 perpendicular to the axis of the valve body 1, and the pressure gauge 9 is installed in the second through hole 105. Note that the pressure gauge 9 is a conventional art.
Through setting up pressure gauge 9, can make things convenient for the user in time to observe fluidic pressure size, in time take measures, avoid causing the damage to self preservation protects low temperature gas filling valve.
Optionally, in this embodiment, the self-protection low-temperature gas filling valve further includes: a thermometer 10. As shown in fig. 4, a third through hole (not shown) perpendicular to the axis of the valve body 1 is further provided at the flow channel groove 103 of the valve body 1, and the thermometer 10 is installed in the third through hole.
The purpose of the thermometer 10 is to facilitate the user's observation of the temperature of the fluid, and to avoid temperature effects on the quality of the fluid being transferred, or even dangers, when transferring cryogenic fluids.
In the present invention, unless otherwise explicitly specified or limited, the first feature "on" or "under" the second feature may be directly contacting the first feature and the second feature or indirectly contacting the first feature and the second feature through an intermediate.
Also, a first feature "on," "above," and "over" a second feature may mean that the first feature is directly above or obliquely above the second feature, or that only the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lower level than the second feature.
In the description herein, reference to the description of the term "one embodiment," "some embodiments," "an example," "a specific example" or "some examples," or the like, means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (8)
1. A self-protecting low-temperature gas filling valve is characterized by comprising: the valve comprises a valve body, an adjusting piece, a sealing piece, a sliding rod and a spring;
the valve body is provided with a first inner hole and a second inner hole, the first inner hole is coaxially adjacent to the second inner hole, the diameter of the first inner hole is larger than that of the second inner hole, and the middle section of the first inner hole is provided with a runner groove;
a first inner thread is arranged in the first inner hole, a first outer thread is arranged on the adjusting piece, and the adjusting piece is arranged in the first inner hole through the screwing of the first inner thread and the first outer thread; the adjusting piece is provided with a plurality of flow passage holes;
the adjusting piece is provided with a first sliding hole, and the sealing piece is provided with a first sealing hole; the two ends of the sliding rod are respectively a sliding end and a sealing end; the sliding end is slidably arranged in the first sliding hole in a penetrating mode, and the sealing element is slidably arranged on the sealing end through the first sealing hole;
the sealing element is matched with the sealing end, so that when the sealing element is positioned in the part of the first inner hole without the runner groove, the first inner hole is not communicated with the second inner hole;
the spring is sleeved on the sliding rod, and two ends of the spring respectively abut against the sliding end and the sealing piece.
2. The self-protecting cryogenic filler valve of claim 1, wherein the adjusting member further comprises a clamping groove for screwing the adjusting member.
3. The self-protecting cryogenic filler valve of claim 2, wherein the valve body further comprises: mounting a flange plate;
the mounting flange plate is sleeved on the valve body, and a plurality of mounting holes are formed in the mounting flange plate.
4. The self-protecting cryogenic filler valve of claim 2, further comprising: a sealing gasket;
the first sealing hole of the sealing element is provided with a sealing groove, and the sealing gasket is clamped in the sealing groove.
5. The self-protecting low-temperature gas filling valve according to claim 1, wherein the sliding end is further provided with a first clamp and a step, the adjusting member is provided with a second clamping step, and the first clamping step is matched with the second clamping step and used for supporting and positioning the sliding rod.
6. The self-protecting cryogenic filler valve of claim 1, further comprising: a pressure relief valve;
the runner groove of the valve body is also provided with a first through hole vertical to the axis of the valve body, and the pressure relief valve is arranged in the first through hole.
7. The self-protecting cryogenic filler valve of claim 6, further comprising: a pressure gauge;
the runner groove of the valve body is also provided with a second through hole vertical to the axis of the valve body, and the pressure gauge is arranged in the second through hole.
8. The self-protecting cryogenic filler valve of claim 6, further comprising: a thermometer;
the runner groove of the valve body is also provided with a third through hole vertical to the axis of the valve body, and the thermometer is arranged in the third through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921543788.5U CN210623717U (en) | 2019-09-17 | 2019-09-17 | Self-protection low-temperature gas filling valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921543788.5U CN210623717U (en) | 2019-09-17 | 2019-09-17 | Self-protection low-temperature gas filling valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210623717U true CN210623717U (en) | 2020-05-26 |
Family
ID=70759220
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921543788.5U Active CN210623717U (en) | 2019-09-17 | 2019-09-17 | Self-protection low-temperature gas filling valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210623717U (en) |
-
2019
- 2019-09-17 CN CN201921543788.5U patent/CN210623717U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| AU2010266661B2 (en) | Methods and apparatus to charge accumulator apparatus | |
| CN102203487B (en) | Fluid flow control members for use with valves | |
| CA2885615C (en) | Slam shut safety device having disc arrestor assembly | |
| WO2014117063A3 (en) | Fluid flow regulator with integrated rapid pressurization bypass valve | |
| NO20111038A1 (en) | ACTUATOR WITH A CONTROLLER | |
| CN102620018A (en) | High-temperature high-pressure pneumatic control automatic pressure relief valve | |
| WO2004081422A3 (en) | Protected integral cylinder valve, gas pressure regulator and flow meter, and method for refilling a gas cylinder so equipped | |
| US20170016546A1 (en) | Safety device for installation in a gas-supply system, in particular, an acetylene-supply system | |
| CN104006192A (en) | Pressure reducing valve, tap and bottle provided with such a pressure reducing valve | |
| CN210623717U (en) | Self-protection low-temperature gas filling valve | |
| CN202510785U (en) | High-temperature high-pressure pneumatic control automatic pressure release valve | |
| US8714189B2 (en) | Flow valve | |
| EP2765340B1 (en) | A valve, a residual pressure valve, a regulator and a tap comprising such a valve | |
| CN110864147B (en) | Cut-adjusting integrated pressure regulator and integrated gas pressure regulating core | |
| CN210770311U (en) | Pneumatic type trip valve | |
| US9732872B2 (en) | Fuel float valve | |
| CN210978630U (en) | Air inlet and outlet structure of high-pressure bottle mouth valve | |
| EP2765471B1 (en) | A pressure regulator valve including a safety valve, a tap and a cylinder comprising such a valve | |
| US8336571B2 (en) | Overpressure shutoff and relief valve assembly | |
| CN105738155A (en) | Oil product sampling device | |
| CN110630786A (en) | Air inlet and outlet structure of high-pressure bottle mouth valve | |
| CN106122489B (en) | Actuator assembly for low flow restriction shutoff valve with spill containment | |
| CN106122490B (en) | Low flow restriction shut-off valve with overflow shutoff | |
| CN219472736U (en) | Conjoined stop valve capable of preventing impact overflow | |
| US10527182B2 (en) | Pressure regulator with shutoff mechanism |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |