CN206943518U - Rocking bar adjustable gas-combustion stable-pressure device - Google Patents
Rocking bar adjustable gas-combustion stable-pressure device Download PDFInfo
- Publication number
- CN206943518U CN206943518U CN201720672609.2U CN201720672609U CN206943518U CN 206943518 U CN206943518 U CN 206943518U CN 201720672609 U CN201720672609 U CN 201720672609U CN 206943518 U CN206943518 U CN 206943518U
- Authority
- CN
- China
- Prior art keywords
- valve
- pressure
- ring
- iron core
- gas
- 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
Landscapes
- Magnetically Actuated Valves (AREA)
Abstract
It the utility model is related to gas combustion apparatus field, it is therefore an objective to provide a kind of rocking bar adjustable gas-combustion stable-pressure device.A kind of rocking bar adjustable gas-combustion stable-pressure device, including：Provided with spacer ring, the valve body of air intake duct and gas off-take, stabilizing valve core provided with back-up ring, it is connected with stabilizing valve core upper end and end epithelium that outward flange is connected with spacer ring upper end, regulator hole that valve body is provided with and the pressure regulating screw penetrated respectively with regulator hole and valve body upper end, in regulator hole and upper end is provided with the pressure regulation bar for the screw press being threadedly coupled with pressure regulating screw, the rocking bar being connected with screw press upper end, the pressure spring of valve element upper end and pressure regulation bar lower end is pushed down respectively in both ends, the pressure-stabilizing spring of back-up ring lower end and valve body inside bottom surface is pushed down respectively in both ends, two shut-off valve assemblies for being divided into air intake duct and gas off-take；The diameter of pressure regulation bar and the diameter matches of regulator hole.The rocking bar adjustable gas-combustion stable-pressure device pressurizer pressure is easy to adjust, has two-way stop functional safety preferable.
Description
Technical field
Gas combustion apparatus field is the utility model is related to, especially a kind of rocking bar adjustable gas-combustion stable-pressure device.
Background technology
Chinese Patent Application No. CN201020156311.4 utility model discloses a kind of gas pressure regulator, primary clustering
Have upper cover plate, double-membrane valve core assembly, dividing plate, housing and lower cover, space between dividing plate and housing forms inlet chamber, housing with
Space between lower cover forms discharge chamber, is additionally provided with air intake duct and blast pipe on housing, and the axis of air intake duct and blast pipe hangs down
Directly；The joint portion of each component of gas pressure regulator is mounted on sealing ring, it is possible to achieve good sealing, will effectively enter, arrange
Air cavity is kept apart with outside atmosphere space.There is pressurizer pressure adjustment difficulty in the gas pressure regulator, without cutoff function
Deficiency；Therefore, the rocking bar adjustable gas-combustion stable-pressure device that a kind of pressurizer pressure is easy to adjust, has cutoff function is designed, is turned into
Urgent problem to be solved.
Utility model content
The purpose of this utility model is to overcome current gas pressure regulator pressurizer pressure adjustment difficulty to be present, do not have
The deficiency of cutoff function；Therefore it provides a kind of pressurizer pressure is easy to adjust, there is the rocking bar adjustable gas-combustion voltage stabilizing of cutoff function
Device.
Concrete technical scheme of the present utility model is：
A kind of rocking bar adjustable gas-combustion stable-pressure device, including：The air intake duct that is connected provided with spacer ring, with spacer ring gusset and with every
The valve body of the gas off-take of ring lower end connection；Described novel structure gas pressure maintaining valve also includes：Provided with relative with spacer ring lower end
The stabilizing valve core of back-up ring, is connected and end epithelium that outward flange is connected with spacer ring upper end with stabilizing valve core upper end, the tune that valve body is provided with
Hole and the pressure regulating screw penetrated respectively with regulator hole and valve body upper end are pressed, in regulator hole and upper end is provided with and pressure regulating screw
Valve element upper end and tune are pushed down in the pressure regulation bar of the screw press of threaded connection, the rocking bar being connected with screw press upper end, both ends respectively
The pressure-stabilizing spring of back-up ring lower end and valve body inside bottom surface is pushed down at the pressure spring of depression bar lower end, both ends respectively, two be divided into
The shut-off valve assemblies of air flue and gas off-take, it is threadedly coupled with screw press and pushes down the locking nut of valve body upper end；Pressure regulation bar
The diameter matches of diameter and regulator hole.Described rocking bar adjustable gas-combustion stable-pressure device is in use, air intake duct connects with gas pipeline
Connect, the inlet end connection of gas off-take and gas heater；Pulling rocking bar rotation screw press lifts pressure regulation bar, and in pressure regulation bullet
Under the collective effect of spring and pressure-stabilizing spring, the aperture of back-up ring and spacer ring lower end can be adjusted so as to adjust voltage stabilizing value；Two are divided into
The shut-off valve assemblies of air intake duct and gas off-take block air intake duct and gas off-take respectively makes air inlet and outlet two-way stop；The rocking bar
Adjustable gas-combustion stable-pressure device pressurizer pressure is easy to adjust, has two-way stop functional safety preferable.
Preferably, described rocking bar adjustable gas-combustion stable-pressure device also includes：Several side epitheliums；Stabilizing valve core is provided with
Identical and one end connects one to one with side counterbore with side counterbore number for number and side epithelium number identical side counterbore, number
Transitional pore, the middle counterbore for being connected with the transitional pore other end and being penetrated with stabilizing valve core upper end；Side epithelium corresponds to sink positioned at side
Outer end of hole and it is connected with stabilizing valve core.By the elastic deformation of side epithelium, change in short-term that can be to gaseous-pressure carries out sensitive tune
Section, improve voltage regulation result.
Preferably, described shut-off valve assemblies include：The inner is provided with stop valve through hole and the stop valve being connected with valve body
Shell, in cut-off valve shell and the stop valve coil provided with mesopore, the inner are arranged with annular magnetic loaded in mesopore and outer end
The static iron core of iron, the dynamic iron core of multi-diameter shaft shape is shaped as, valve pad, is connected with valve pad outer end and outer gusset is provided with and outer end insertion
The centring ring of positioning ring groove, the frustum type flange collar inner located at cut-off valve shell, taper stage clip；The diameter at the big end of dynamic iron core is with
The diameter matches in hole；The big end insertion mesopore of dynamic iron core is inner and inner relative with static iron core；The small end of dynamic iron core, which passes through, to be cut
Only valve through hole and valve pad, it is connected with valve pad outer end；The big end of taper stage clip is enclosed on outside frustum type flange collar and pushes down cut-off valve shell
It is inner；The small end of taper stage clip is located in positioning ring groove and pushes down the inner of positioning ring groove；Air intake duct is provided with air inlet closure ring；Go out
Air flue is provided with outlet closure ring；The valve pad of one shut-off valve assemblies is relative with the outer end of air inlet closure ring；Another cut-off valve group
The valve pad of part is relative with the outer end of outlet closure ring；The rear end of static iron core and stop valve cage connection.
During original state, the valve pad of a shut-off valve assemblies blocks the outer end of air inlet closure ring；Another cut-off valve group
The valve pad of part blocks the outer end of outlet closure ring, makes air inlet and outlet two-way stop；Stop valve coil electricity, static iron core absorption
The outside end motion of dynamic iron core, and drive the outside end motion of valve pad of a shut-off valve assemblies and air inlet closure ring to depart from, another
The outside end motion of valve pad of shut-off valve assemblies departs from outlet closure ring, and gas circuit is unimpeded；Stop valve coil blackout, annular magnet
Continue to adsorb dynamic iron core through static iron core, stay open a kind of stable state of gas circuit；Stop valve coil is reversely powered, the magnetic of static iron core
Property and the reversal of magnetism of annular magnet offset, under the effect of taper stage clip, valve pad and the inside end motion of dynamic iron core reset, be in into
Gas and outlet two-way stop block another stable state of gas circuit；Shut-off valve assemblies stop valve coil when keeping gas circuit unimpeded breaks
Electricity, good energy-conserving effect.
Preferably, the inner of described static iron core is provided with frustum face；The outer end of dynamic iron core is provided with the taper with frustum face
Identical taper type counterbore；The top surface of taper type counterbore is provided with buffering noise reduction cushion block.Frustum face and taper type counterbore coordinate and can carried
Absorption affinity between high static iron core and dynamic iron core；Buffering noise reduction cushion block reduces strike note when static iron core is adsorbed with dynamic iron core.
Preferably, sealing ring is provided between described static iron core and mesopore.Improve sealing.
Preferably, the material of described valve pad is rubber or plastics.Valve pad closure air inlet closure ring blocks out sealing gland
During blocking ring, there is valve pad deformability to be beneficial to block gas circuit.
Compared with prior art, the beneficial effects of the utility model are：The rocking bar adjustable gas-combustion stable-pressure device voltage stabilizing pressure
Power is easy to adjust, has two-way stop functional safety preferable., can be to gaseous-pressure in short-term by the elastic deformation of side epithelium
Change carries out sensitive regulation, improves voltage regulation result.Shut-off valve assemblies stop valve coil blackout when keeping gas circuit unimpeded, energy-conservation effect
Fruit is good.Frustum face and taper type counterbore coordinate the absorption affinity that can be improved between static iron core and dynamic iron core；Buffering noise reduction cushion block makes quiet
Iron core reduces strike note when being adsorbed with dynamic iron core.Sealing ring is provided between static iron core and mesopore, improves sealing.The material of valve pad
For rubber or plastics, when valve pad closure air inlet closure ring or closure outlet block ring, there is valve pad deformability to be beneficial to block gas
Road.
Brief description of the drawings
Fig. 1 is a kind of structural representation of the present utility model；
Fig. 2 is Fig. 1 A-A sectional views；
Fig. 3 is Fig. 1 B-B sectional views.
In figure：Hold epithelium 1, rocking bar 2, valve body 3, spacer ring 31, air intake duct 32, gas off-take 33, regulator hole 34, pressure regulating screw
35th, air inlet closure ring 36, outlet closure ring 37, stabilizing valve core 4, back-up ring 41, side counterbore 42, transitional pore 43, middle counterbore 44, pressure regulation
Bar 5, screw press 51, pressure spring 6, pressure-stabilizing spring 7, shut-off valve assemblies 8, stop valve through hole 81, cut-off valve shell 82, mesopore
83rd, stop valve coil 84, annular magnet 85, static iron core 86, dynamic iron core 87, valve pad 88, positioning ring groove 89, centring ring 810, frustum
Type flange collar 811, taper stage clip 812, frustum face 813, taper type counterbore 814, buffering noise reduction cushion block 815, sealing ring 816, locking
Nut 9, side epithelium 10.
Embodiment
It is shown below in conjunction with the accompanying drawings that the utility model is described further.
As shown in accompanying drawing 1, accompanying drawing 2, accompanying drawing 3：A kind of rocking bar adjustable gas-combustion stable-pressure device, including：Provided with spacer ring 31, with
The gusset of spacer ring 31 connection air intake duct 32 and the gas off-take 33 connected with the lower end of spacer ring 31 valve body 3, provided with the lower end of spacer ring 31
The stabilizing valve core 4 of relative back-up ring 41, and outward flange Nian Jie with the upper end of the stabilizing valve core 4 end epithelium 1 Nian Jie with the upper end of spacer ring 31,
Regulator hole 34 that valve body 3 is provided with and the pressure regulating screw 35 penetrated respectively with regulator hole 34 and the upper end of valve body 3, located at regulator hole 34
In and upper end be provided with the pressure regulation bar 5 of screw press 51 be threadedly coupled with pressure regulating screw 35, with the upper end screw company of screw press 51
The pressure spring 6 of valve element upper end and the lower end of pressure regulation bar 5 is pushed down at the rocking bar 2 connect, both ends respectively, and both ends are pushed down under back-up ring 41 respectively
End and the pressure-stabilizing spring 7 of the inside bottom surface of valve body 3, two shut-off valve assemblies 8 for being divided into air intake duct 32 and gas off-take 33, with pressure regulation
Screw rod 51 is threadedly coupled and pushes down the locking nut 9 of the upper end of valve body 3；The diametric clearance of the diameter of pressure regulation bar 5 and regulator hole 34 is matched somebody with somebody
Close.
Described rocking bar adjustable gas-combustion stable-pressure device also includes：Four side epitheliums 10；Stabilizing valve core 4 is provided with number and side
42 10 number identical side counterbores 42 of epithelium, number and side counterbore numbers are identical and one end connects one to one with side counterbore 42
Transitional pore 43, the middle counterbore 44 for being connected with the other end of transitional pore 43 and being penetrated with the upper end of stabilizing valve core 4；Side epithelium 10 corresponds
Positioned at the outer end of side counterbore 42 and be bonded with stabilizing valve core 4.Side counterbore 42 is shaped as rectangle.
Described shut-off valve assemblies 8 include：The inner be provided with stop valve through hole 81 and with outside the stop valve of the mode connects for screw of valve body 3
Shell 82, in cut-off valve shell 82 and the stop valve coil 84 provided with mesopore 83, the inner are arranged loaded in mesopore 83 and outer end
There is the static iron core 86 of annular magnet 85, be shaped as the dynamic iron core 87 of multi-diameter shaft shape, valve pad 88, and outside Nian Jie with the outer end of valve pad 88
The centring ring 810 provided with the positioning ring groove 89 with outer end insertion is enclosed, the frustum type flange collar 811 located at the inner of cut-off valve shell 82,
Taper stage clip 812,；The diametric clearance of the diameter that dynamic iron core 87 is held greatly and mesopore 83 coordinates；The big end insertion mesopore of dynamic iron core 87
83 inner and with static iron core 86 the inners are relative；The small end of dynamic iron core 87 is inlayed through stop valve through hole 81 and with the outer end of valve pad 88
Connection；The big end of taper stage clip 812 is enclosed on outside frustum type flange collar 811 and pushes down the inner of cut-off valve shell 82；Taper stage clip 812
Small end is located in positioning ring groove 89 and pushes down the inner of positioning ring groove 89；Air intake duct 32 is provided with air inlet closure ring 36；Gas off-take 33
Ring 37 is blocked provided with outlet；The valve pad 88 of one shut-off valve assemblies 8 is relative with the outer end of air inlet closure ring 36；Another stop valve
The valve pad 88 of component 8 is relative with the outer end of outlet closure ring 37；The rear end of static iron core 86 is threadedly coupled with cut-off valve shell 82.
The inner of described static iron core 86 is provided with frustum face 813；The outer end of dynamic iron core 87 is provided with the taper with frustum face 813
Identical taper type counterbore 814；The top surface of taper type counterbore 814 is provided with buffering noise reduction cushion block 815.
Sealing ring 816 is provided between described static iron core 86 and mesopore 83.
The material of described valve pad 88 is rubber.
Described rocking bar adjustable gas-combustion stable-pressure device in use, air intake duct 32 is connected with gas pipeline, gas off-take 33 with
The inlet end connection of gas heater；Pulling the rotation screw press 51 of rocking bar 2 lifts pressure regulation bar 5, and in pressure spring 6 and surely
Under the collective effect of pressing spring 7, the aperture of back-up ring 41 and the lower end of spacer ring 31 can be adjusted so as to adjust voltage stabilizing value；During original state,
The valve pad 88 of one shut-off valve assemblies 8 blocks the outer end of air inlet closure ring 36；The valve pad 88 of another shut-off valve assemblies 8 blocks
The firmly outer end of outlet closure ring 37, makes air inlet and outlet two-way stop；Stop valve coil 84 is powered, and static iron core 86 adsorbs dynamic iron core
87 outside end motions, and drive the 88 outside end motion of valve pad of a shut-off valve assemblies 8 and air inlet closure ring 36 to depart from, another
The 88 outside end motion of valve pad of shut-off valve assemblies 8 departs from outlet closure ring 37, and gas circuit is unimpeded；Stop valve coil 84 powers off,
Annular magnet 85 continues to adsorb dynamic iron core 87 through static iron core 86, stays open a kind of stable state of gas circuit；Stop valve coil 84 is anti-
To energization, the magnetic of static iron core 86 is offset with the reversal of magnetism of annular magnet 85, under the effect of taper stage clip 812, the He of valve pad 88
87 inside end motion of dynamic iron core is resetted, and another stable state of gas circuit is blocked in air inlet and outlet two-way stop；Held when acting on
Gaseous-pressure change on epithelium 1, end epithelium 1 pull stabilizing valve core 4 to move, combustion gas are used between back-up ring 41 and the one end of spacer ring 31
The servo-actuated change in the gap of circulation, and the bigger end epithelium 1 of gaseous-pressure is bigger to the active force of valve element, back-up ring 41 and spacer ring 31 1
Gap between end is smaller, and the combustion gas to exit ramp output carries out voltage stabilizing, so as to the stable firepower for controlling gas heater；Pass through
The elastic deformation of side epithelium 10, change in short-term that can be to gaseous-pressure carry out sensitive regulation.
The beneficial effects of the utility model are：The rocking bar adjustable gas-combustion stable-pressure device pressurizer pressure is easy to adjust, has
Two-way stop functional safety is preferable.By the elastic deformation of side epithelium, change in short-term that can be to gaseous-pressure carries out sensitive tune
Section, improve voltage regulation result.Shut-off valve assemblies stop valve coil blackout, good energy-conserving effect when keeping gas circuit unimpeded.Frustum face and
Taper type counterbore coordinates the absorption affinity that can be improved between static iron core and dynamic iron core；Buffering noise reduction cushion block makes static iron core be inhaled with dynamic iron core
Strike note is reduced when attached.Sealing ring is provided between static iron core and mesopore, improves sealing.The material of valve pad is rubber, and valve pad seals
When stifled air inlet closure ring or closure outlet closure ring, there is valve pad deformability to be beneficial to block gas circuit.
It is apparent to one skilled in the art that the utility model can change into various ways, and such change is not
Think to depart from the scope of the utility model.All such technical staff to the field obviously change, and will include
Within the scope of present claims.
Claims (5)
1. a kind of rocking bar adjustable gas-combustion stable-pressure device, including：The air intake duct and and spacer ring connected provided with spacer ring, with spacer ring gusset
The valve body of the gas off-take of lower end connection；It is characterized in that described rocking bar adjustable gas-combustion stable-pressure device also includes：It is provided with and spacer ring
The stabilizing valve core of the relative back-up ring in lower end, is connected and end epithelium that outward flange is connected with spacer ring upper end with stabilizing valve core upper end, valve
Regulator hole that body is provided with and the pressure regulating screw penetrated respectively with regulator hole and valve body upper end, in regulator hole and upper end is provided with
The pressure regulation bar for the screw press being threadedly coupled with pressure regulating screw, the rocking bar being connected with screw press upper end, valve is pushed down at both ends respectively
The pressure-stabilizing spring of back-up ring lower end and valve body inside bottom surface is pushed down at core upper end and the pressure spring of pressure regulation bar lower end, both ends respectively, and two
The individual shut-off valve assemblies for being divided into air intake duct and gas off-take, it is threadedly coupled with screw press and pushes down the locking screw of valve body upper end
It is female.
2. rocking bar adjustable gas-combustion stable-pressure device according to claim 1, it is characterized in that：Also include：Several side epitheliums；
Stabilizing valve core be provided with number and side epithelium number identical side counterbore, number with side counterbore number identical and one end and side counterbore one
The transitional pore of one corresponding connection, the middle counterbore for being connected with the transitional pore other end and being penetrated with stabilizing valve core upper end；Side epithelium is one by one
It is corresponding to be located at side counterbore outer end and be connected with stabilizing valve core.
3. rocking bar adjustable gas-combustion stable-pressure device according to claim 1 or 2, it is characterized in that：Described shut-off valve assemblies
Including：The inner is provided with stop valve through hole and the cut-off valve shell being connected with valve body, in cut-off valve shell and provided with mesopore
Stop valve coil, the inner is loaded in mesopore and outer end is arranged with the static iron core of annular magnet, is shaped as the dynamic iron core of multi-diameter shaft shape,
Valve pad, be connected with valve pad outer end and outer gusset be provided with outer end insertion positioning ring groove centring ring, located at cut-off valve shell in
The frustum type flange collar at end, taper stage clip；The diameter at the big end of dynamic iron core and the diameter matches of mesopore；The big end insertion mesopore of dynamic iron core
Inner and with static iron core the inner is relative；The small end of dynamic iron core passes through stop valve through hole and valve pad, is connected with valve pad outer end；Taper
The big end of stage clip is enclosed on outside frustum type flange collar and pushes down cut-off valve shell the inner；The small end of taper stage clip be located in positioning ring groove and
Push down the inner of positioning ring groove；Air intake duct is provided with air inlet closure ring；Gas off-take is provided with outlet closure ring；One shut-off valve assemblies
Valve pad is relative with the outer end of air inlet closure ring；The valve pad of another shut-off valve assemblies is relative with the outer end of outlet closure ring.
4. rocking bar adjustable gas-combustion stable-pressure device according to claim 3, it is characterized in that：The inner of described static iron core is set
There is frustum face；The outer end of dynamic iron core is provided with the taper identical taper type counterbore with frustum face；The top surface of taper type counterbore is provided with
Buffer noise reduction cushion block.
5. rocking bar adjustable gas-combustion stable-pressure device according to claim 3, it is characterized in that：Described static iron core and mesopore it
Between be provided with sealing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720672609.2U CN206943518U (en) | 2017-06-09 | 2017-06-09 | Rocking bar adjustable gas-combustion stable-pressure device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720672609.2U CN206943518U (en) | 2017-06-09 | 2017-06-09 | Rocking bar adjustable gas-combustion stable-pressure device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206943518U true CN206943518U (en) | 2018-01-30 |
Family
ID=61362986
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720672609.2U Active CN206943518U (en) | 2017-06-09 | 2017-06-09 | Rocking bar adjustable gas-combustion stable-pressure device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206943518U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107300030A (en) * | 2017-06-09 | 2017-10-27 | 杭州强邦精密机械电器有限公司 | Rocking bar adjustable gas-combustion stable-pressure device |
-
2017
- 2017-06-09 CN CN201720672609.2U patent/CN206943518U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107300030A (en) * | 2017-06-09 | 2017-10-27 | 杭州强邦精密机械电器有限公司 | Rocking bar adjustable gas-combustion stable-pressure device |
| CN107300030B (en) * | 2017-06-09 | 2019-02-26 | 杭州强邦精密机械电器有限公司 | Rocking bar adjustable gas-combustion stable-pressure device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206943518U (en) | Rocking bar adjustable gas-combustion stable-pressure device | |
| CN107166048B (en) | Novel structure gas proportioning valve | |
| CN104180018B (en) | A kind of adjustable gas-combustion proportioning valve | |
| CN107314148A (en) | New structure adjusting spool device and adjusting spool method | |
| CN205877318U (en) | Gas self - closing valves | |
| CN107300030A (en) | Rocking bar adjustable gas-combustion stable-pressure device | |
| CN203604712U (en) | Small electromagnetic three-way valve | |
| CN107366762B (en) | Binary channels fine-tunes sectioning valve | |
| CN202927149U (en) | Permanent magnet check valve | |
| CN209245413U (en) | A kind of adjustable gas-combustion proportioning valve | |
| CN108980443B (en) | High-temperature electromagnetic drive stop valve | |
| CN206988478U (en) | Binary channels fine-tunes sectioning valve | |
| CN105498066A (en) | Low-pressure large-flux ratio control quick response device and quick response control valve thereof | |
| CN101251204A (en) | Gas flow regulating valve | |
| CN205360202U (en) | Large -traffic proportional control quick response device of low pressure and quick response control valve thereof | |
| CN206958281U (en) | Novel structure gas proportioning valve | |
| CN205908820U (en) | Manual -automatic discharge valve | |
| CN108278389A (en) | Two-position two-way solenoid valve and its working method | |
| CN115492977A (en) | Precise proportional electromagnetic valve for breathing machine | |
| CN204459390U (en) | A kind of small-power gas ratio valve | |
| CN207584148U (en) | A kind of hydrostatic control solenoid valve | |
| JP2004265363A (en) | Gas pressure reducing valve | |
| CN206943551U (en) | New structure adjusting spool device | |
| CN204387344U (en) | Electronic expansion valve | |
| CN103075552A (en) | High-flow-rate special gas pressure reducing device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |