CN105605233B - Combined high-voltage pressure regulator valve - Google Patents
Combined high-voltage pressure regulator valve Download PDFInfo
- Publication number
- CN105605233B CN105605233B CN201610019880.6A CN201610019880A CN105605233B CN 105605233 B CN105605233 B CN 105605233B CN 201610019880 A CN201610019880 A CN 201610019880A CN 105605233 B CN105605233 B CN 105605233B
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- China
- Prior art keywords
- valve
- water
- steel ball
- water cavity
- face
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/42—Valve seats
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/46—Attachment of sealing rings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/46—Attachment of sealing rings
- F16K1/465—Attachment of sealing rings to the valve seats
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/10—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit
- F16K11/20—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit operated by separate actuating members
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
- F16K17/06—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with special arrangements for adjusting the opening pressure
Abstract
The invention discloses a kind of combined high-voltage pressure regulator valve, including voltage-regulating system, water circuit system and waterway control system；Wherein described water circuit system includes effluent seat, water supply connector, water out adapter, backwater joint, water cavity valve seat, steel ball and commutation valve spring, and the water cavity valve seat is provided with elastic sealing element.The present invention sets one to enclose groove first on water cavity valve seat end face, and an annular groove is set on the lateral wall of water cavity valve seat, several apertures are provided with annular groove, and communicated with the groove on water cavity valve seat section, the metalwork of groove inner ring is to support highly pressurised liquid to the pressure of steel ball, elastomer is injected using Shooting Technique with steel ball sealing position in groove, and be connected by several apertures with the annular groove of water cavity valve seat lateral wall, both the sealing function to steel ball had been played, again elastomer will not be gone out by highly pressurised liquid, so as to greatly reduce the required precision to steel ball, and sealed reliable, service life is long.
Description
Technical field
The present invention relates to a kind of combined high-voltage pressure regulator valve.
Background technology
The key technology of pressure regulator valve is the sealing problem of water cavity valve seat and steel ball, because the circularity precision of steel ball is difficult to reach
Arrive, particularly conveying corrosive liquid, steel ball must use stainless steel material, its precision is more difficult to ensure, therefore steel ball and water cavity valve
The sealing of seat is difficult to solve always.If water cavity valve seat using metal material make, due to the out-of-roundness of steel ball can cause steel ball with
Water cavity valve base sealing is bad and seepage；If water cavity seat material uses plastic production, although the out-of-roundness of steel ball is to its sealing
It can influence smaller, but in operation, when commutation handle pulls commutation valve rod rotary dial steel ball, because steel ball is in 50bar
Tight note water cavity valve seat under hydraulic pressure, and need to stir steel ball from side with larger power during commutation valve rod rotation could open, now steel
Ball can produce extruding to the aperture of water cavity valve seat and deform, so as to influence the sealing effectiveness of steel ball and water cavity valve seat and produce and ooze
Leakage；According to elastic seal ring is installed at water cavity valve seat aperture, when steel ball is opened, because sealing ring is in the work of High-Pressure Water
It can extrude and fail from steel ball side under.
The content of the invention
The purpose of the present invention is poor to solve the sealing effectiveness between the water cavity valve seat and steel ball of current pressure regulator valve, is easily oozed
The technical problem of leakage.
In order to solve above-mentioned technical barrier, the present invention provides a kind of combined high-voltage pressure regulator valve, including voltage-regulating system, water route
System and waterway control system；
The voltage-regulating system includes pressure adjusting roller, pressure regulation valve body, pressure spring, plunger, valve element and pressuring adjusting valve base, the pressure regulation
Take turns and be connected to the pressure regulation valve body, one end of the pressure spring and the plunger is sequentially arranged in the pressure regulator valve body, described
The other end of plunger offsets with described valve element one end, and the valve element other end offsets with the pressuring adjusting valve base；
The water circuit system includes effluent seat, water supply connector, water out adapter, backwater joint, water cavity valve seat, steel ball and commutation
Valve spring, the pressure regulation valve body is coaxially installed in the effluent seat, the water supply connector, water out adapter and backwater joint difference
It is installed on first, second, and third face of the effluent seat, the water cavity valve seat is arranged on the fourth face of the effluent seat,
The steel ball sealing is at the water cavity valve seat aperture, and the reversal valve spring one end offsets with the steel ball；The water cavity valve
Elastic sealing element is provided with bore mouthful；
The waterway control system includes commutation handle, commutation valve rod, commutation valve body, locking ball, retaining spring and pressure
Power table, the commutation valve spring other end is supported with the reversal valve body phase, and the commutation valve rod is installed in the reversal valve body,
And be connected with the commutation handle, the locking ball is inserted in the reversal valve body in the lump after being offseted with above-mentioned retaining spring,
And by the commutation handle covering, the pressure gauge is connected on the side wall of the commutation valve body.
Further, the first face of the effluent seat is relative with fourth face, and the second face and the 3rd face are perpendicular.
Further, the water out adapter has two, and the first water out adapter is located on the second face of the effluent seat, the
Two water out adapters are on the 5th face of the effluent seat, and the second face of the effluent seat is relative with the 5th face.
Further, the water cavity valve seat, steel ball have three groups with the commutation valve spring, wherein first group corresponds to institute
The first water out adapter is stated, second group corresponds to second water out adapter, and the 3rd group corresponds to the backwater joint.
Further, the water cavity valve seat includes base metal part, is contacted on the base metal part with the steel ball
End face provided with a circle groove, the metalwork between the groove and the water cavity valve base inner wall contacts with the steel ball；Institute
It is the elastomer being molded in the groove to state elastic sealing element.
Further, a circle annular groove is additionally provided with the base metal part side wall, bullet is molded with the annular groove
Property body.
Further, offer and be molded in 4 apertures connected with the groove, the aperture in the annular groove
Flexible body.
Further, it is additionally provided with the base metal part side wall in a circle seal groove, the seal groove and is provided with sealing ring.
The present invention sets one to enclose groove first on water cavity valve seat end face, and the metalwork of groove inner ring is to support high pressure liquid
Body makes it not cause crimp to the elastomer in valve seat aperture in a high voltage state the pressure of steel ball.In groove and steel
Ball sealing position injects elastomer using Shooting Technique, in order that the elastomer of injection is not extruded by highly pressurised liquid, in water cavity valve
The side wall of seat processes an annular groove close to the periphery of injection elastomer, and 4 apertures are drilled with annular groove and are connected with groove, is molded
When elastomeric material filled into annular groove be connected with the elastomer in the groove of Kong Bingyu apertures so that the elasticity in water cavity valve seat aperture
Body is difficult to be extruded by highly pressurised liquid.When steel ball fits water cavity valve seat in a high voltage state, water cavity valve seat metalwork branch suitable for reading
The steel ball under high pressure effect is supportted, the elastomer in water cavity valve seat aperture only plays sealing function, when the valve rod that commutates stirs steel ball,
Steel ball is only deformed to the elastomer in water cavity valve seat aperture in elastic range, after steel ball leaves, the bullet in water cavity valve seat aperture
Property body recovers original state again, so as to play sealing function all the time.After the structure, the required precision to steel ball is dropped significantly
Low, and sealed reliable, service life is long.
Brief description of the drawings
Fig. 1 is the explosive view of one embodiment of the invention；
Fig. 2 is the front view of one embodiment of the invention；
Fig. 3 is the left view of one embodiment of the invention；
Fig. 4 is the top view of one embodiment of the invention；
Fig. 5 is the three-dimensional view of one embodiment of the invention；
Fig. 6 is the three-dimensional view of the water cavity valve seat of one embodiment of the invention；
Fig. 7 is the sectional view of water cavity valve seat in Fig. 6.
In figure：Fixing nut 1；Pressure adjusting roller 2；First O-ring 3；First hexagon socket cap head screw 4；Pressure regulation valve body 5；The
Two O-rings 6；Screw press 7；Top plug 8；Pressure spring 9；Plunger 10；3rd O-ring 11；Plunger sealing washer 12；Valve element 13；The
Two hexagon socket cap head screws 14；Pressuring adjusting valve base 15；Water supply connector 16；Water out adapter 17；4th O-ring 18；Backwater joint 19；
Effluent seat 20；Water cavity valve seat 21；Elastomer 2101；Column groove 2102；Aperture 2103；Seal groove 2104；Metalwork 2105；It is recessed
Groove 2106；Sealing ring 22；5th O-ring 23；Commutate valve rod 24；Stem gasket 25；6th O-ring 26；Steel ball 27；Reversal valve bullet
Spring 28；3rd hexagon socket cap head screw 29；Commutate valve body 30；Retaining spring 31；Locking ball 32；Commutate nut 33；Commutation
Handle 34；Centring ring 35；Pressure tapping 36；Pressure gauge with bottom connection 37；Sliding piece 38.
Embodiment
In conjunction with the accompanying drawings, the present invention is further explained in detail.These accompanying drawings are simplified schematic diagram, only with
Illustration illustrates the basic structure of the present invention, therefore it only shows the composition relevant with the present invention.
As Figure 1-4, combined high-voltage pressure regulator valve of the invention, is assembled by following part：Screw press 7 is inserted
Enter in pressure regulation valve body 5, and stretched out by the hole of the one end of pressure regulation valve body 5 outside pressure regulation valve body 5, the is inserted on pressure regulation valve body 5 is cylindrical
One O-ring 3, pressure adjusting roller 2 is screwed on the screw rod of the one end of screw press 7 for stretching out pressure regulation valve body 5, and is fastened with fixing nut 1.Adjust
The pressure other end of screw rod 7 is offseted by top plug 8 with pressure spring 9, and the other end of pressure spring 9 offsets with the one end of plunger 10, plunger 10
The other end is inserted in after the 3rd O-ring 11 and plunger sealing washer 12 successively inserts valve element 13 one end, passes through hexagonal cylindrical head in second
Valve element 13 is fixed together by screw 14 with plunger 10.The other end of valve element 13 offsets with the one end of pressuring adjusting valve base 15, pressuring adjusting valve base 15
In other end insertion effluent seat 20, after being inserted in the second O-ring 6 in the lower end of pressure regulation valve body 5, pass through the first hexagon socket cap head screw
4 are fixed on pressure regulation valve body 5 on the 6th face of effluent seat 20.Water supply connector 16, second are connected with first face of effluent seat 20
It is connected to be connected with backwater joint 19, fourth face on first, second water out adapter 17, the 3rd face on face, the 5th face and sets
Have and water cavity valve seat 21 is connected on three water cavities, each water cavity, the lateral wall of each water cavity valve seat 21 is provided with sealing ring 22, respectively
The top of water cavity valve seat 21 is provided with steel ball 27.The space surrounded in commutation valve rod 24 one end insertion effluent seat 20 by three water cavities,
The commutation other end of valve rod 24 is inserted in insertion commutation valve body 30, three 27 points of steel balls after the O-ring 26 of stem gasket 25 and the 6th successively
Do not offseted with three commutation valve springs 28, commutation valve body 30 is fixed on by effluent seat 20 by the 3rd hexagon socket cap head screw 29
Fourth face on, commutation valve body 30 and effluent seat 20 between be provided with the 5th O-ring 23.Two Kong Zhongfen of the top of commutation valve body 30
Not She You retaining spring 31, the upper end of retaining spring 31 is provided with locking ball 32, and commutation handle 34 passes through hexagonal cylindrical head in first
Screw 4 sequentially passes through centring ring 35 and commutation nut 33 is fixed on commutation valve body 30.Pass through pressure on the commutation lateral wall of valve body 30
Power meter connector 36 is connected with pressure gauge with bottom connection 37.
As shown in figure 5, commutation valve rod 24 lateral wall is provided with sliding piece 38, pulled when by the handle 34 that commutates toward different directions
Move to valve rod 24 rotate when, sliding piece 38 stirs steel ball 27, steel ball 27 is sealed or open water cavity valve seat 21.
As shown in fig. 6-7, one is set to enclose groove 2106, the metalwork 2105 of the inner ring of groove 2106 on the end face of water cavity valve seat 21
To support high pressure liquid stream to the pressure of steel ball 27, make it in a high voltage state will not be to the elastomer in the aperture of water cavity valve seat 21
2101 cause crimp.Elastomer 2101 is injected using Shooting Technique with the sealing position of steel ball 27 in groove 2106, in order that
The elastomer 2101 of injection is not extruded by highly pressurised liquid, on the periphery of the close injection elastomer 2101 of the lateral wall of water cavity valve seat 21
An annular groove 2102 is processed, 4 apertures 2103 are drilled with annular groove 2102 and are connected with groove 2106, by elastomer material during injection
Material fills annular groove 2102 and aperture 2103, and is connected with the elastomer 2101 in aperture groove 2106.The outside of water cavity valve seat 21
It is additionally provided with wall in seal groove 2104, seal groove 2104 and is provided with sealing ring 22.
During the pressure regulator valve work of the present invention, the water supply connector 16 that the highly pressurised liquid produced by pump flows through pressure regulator valve enters water outlet
Seat 20 and voltage-regulating system, according to the rotatable pressure adjusting roller 2 of need of work, make plunger 10 in pressure regulator valve in the presence of pressure spring 9
Certain pressure seal pressuring adjusting valve base 15 is produced in body 5, the current flowed through produce certain pressure.When the dextrorotation of pressure adjusting roller 2
When turning, pressure increase can reach 50bar operating pressures, pressure reduces during rotate counterclockwise pressure adjusting roller 2.When liquid stream exceedes
During the pressure of setting, pressure regulation valve plunger 10 is opened, and part liquid stream is produced by pressuring adjusting valve base 15 and passage that plunger 10 is closed
Raw pressure release, and discharged from water return outlet；Assembled by the liquid stream of set pressure in water cavity valve seat 21, when steel ball 27 and water cavity valve seat 21
During closing, liquid stream can not be discharged, and water outlet is closed；Pulling commutation valve rod 24 when commutation handle 34 promotes steel ball 27 upward
During motion, the passage that liquid flows through water outlet is opened, and highly pressurised liquid discharge delivery port is used for spraying system etc. with water terminal.Should
Pressure regulator valve is settable two delivery ports（First, second water out adapter 17 is connected respectively）With a relief port（Connection backwater connects
First 19）, three steel balls correspond to first, second water outlet steel ball and unload pressing steel balls respectively, pull the controllable commutation of commutation handle 34
Valve rod 24 opens any one water outlet steel ball 27 or opens two water outlet steel balls 27 simultaneously, you can realize any opening water outlet all the way
Or opening two-way water outlet simultaneously is used for spraying system.When the handle 34 that commutates, which pulls the commutation opening of valve rod 24, unloads pressing steel balls 27,
High-Pressure Water flows through water return pipeline from unloading at pressing steel balls, system is relaxed.
Using the above-mentioned desirable embodiment according to the present invention as enlightenment, by above-mentioned description, relevant staff is complete
Various changes and amendments can be carried out without departing from the scope of the technological thought of the present invention' entirely.The technology of this invention
Property scope is not limited to the content on specification, it is necessary to its technical scope is determined according to right.
Claims (8)
1. combined high-voltage pressure regulator valve, it is characterised in that including voltage-regulating system, water circuit system and waterway control system；
The voltage-regulating system includes pressure adjusting roller, pressure regulation valve body, pressure spring, plunger, valve element and pressuring adjusting valve base, and the pressure adjusting roller connects
It is connected to the pressure regulation valve body, one end of the pressure spring and the plunger is sequentially arranged in the pressure regulator valve body, the plunger
The other end offseted with described valve element one end, the valve element other end offsets with the pressuring adjusting valve base；
The water circuit system includes effluent seat, water supply connector, water out adapter, backwater joint, water cavity valve seat, steel ball and reversal valve bullet
Spring, the pressure regulation valve body is coaxially installed in the effluent seat, and the water supply connector, water out adapter and backwater joint are respectively mounted
In on first, second, and third face of the effluent seat, the water cavity valve seat is arranged on the fourth face of the effluent seat, described
Steel ball sealing is at the water cavity valve seat aperture, and the reversal valve spring one end offsets with the steel ball；The water cavity valve seat orifice
Elastic sealing element is provided with mouthful；
The waterway control system includes commutation handle, commutation valve rod, commutation valve body, locking ball, retaining spring and pressure gauge,
The commutation valve spring other end is supported with the reversal valve body phase, and the commutation valve rod is installed in the reversal valve body, and with
The commutation handle connection, the locking ball is inserted in the reversal valve body in the lump after being offseted with above-mentioned retaining spring, and by
The commutation handle covering, the pressure gauge is connected on the side wall of the commutation valve body.
2. combined high-voltage pressure regulator valve according to claim 1, it is characterised in that the first face and the 4th of the effluent seat
Face is relative, and the second face and the 3rd face are perpendicular.
3. combined high-voltage pressure regulator valve according to claim 2, it is characterised in that the water out adapter has two, the
One water out adapter is on the second face of the effluent seat, and the second water out adapter is described on the 5th face of the effluent seat
Second face of effluent seat is relative with the 5th face.
4. combined high-voltage pressure regulator valve according to claim 3, it is characterised in that the water cavity valve seat, steel ball with it is described
The valve spring that commutates has three groups, wherein first group corresponds to first water out adapter, second group corresponds to second water outlet
Joint, the 3rd group corresponds to the backwater joint.
5. the combined high-voltage pressure regulator valve according to claim any one of 1-4, it is characterised in that the water cavity valve seat includes
Provided with a circle groove, the groove and institute on base metal part, the end face contacted on the base metal part with the steel ball
The metalwork stated between water cavity valve base inner wall is contacted with the steel ball；The elastic sealing element is the bullet being molded in the groove
Property body.
6. combined high-voltage pressure regulator valve according to claim 5, it is characterised in that also set on the base metal part side wall
There is a circle annular groove, elastomer is molded with the annular groove.
7. combined high-voltage pressure regulator valve according to claim 6, it is characterised in that 4 are offered in the annular groove
Elastomer is molded with the aperture connected with the groove, the aperture.
8. the combined high-voltage pressure regulator valve according to claim 6 or 7, it is characterised in that on the base metal part side wall
It is additionally provided with a circle seal groove, the seal groove and is provided with sealing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610019880.6A CN105605233B (en) | 2016-01-13 | 2016-01-13 | Combined high-voltage pressure regulator valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610019880.6A CN105605233B (en) | 2016-01-13 | 2016-01-13 | Combined high-voltage pressure regulator valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105605233A CN105605233A (en) | 2016-05-25 |
| CN105605233B true CN105605233B (en) | 2017-10-20 |
Family
ID=55985415
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610019880.6A Active CN105605233B (en) | 2016-01-13 | 2016-01-13 | Combined high-voltage pressure regulator valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105605233B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108730582B (en) * | 2018-08-01 | 2023-08-11 | 无锡市华通气动制造有限公司 | Manual control compressed air adjusting device |
| CN112413189A (en) * | 2020-11-18 | 2021-02-26 | 福建西河卫浴科技有限公司 | Go out water switch valve and shower |
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|---|---|---|---|---|
| BE742924A (en) * | 1968-10-12 | 1970-05-14 | ||
| CN2347671Y (en) * | 1998-10-23 | 1999-11-10 | 新疆农业科学院农业机械化研究所 | Multi-functional atomization pressure regulating valve |
| CN2615457Y (en) * | 2003-04-28 | 2004-05-12 | 罗昌国 | Pressure regulating valve for plunger pump |
| CN201302011Y (en) * | 2008-11-17 | 2009-09-02 | 浙江大农实业有限公司 | Pressure regulating valve |
| CN201513593U (en) * | 2009-10-19 | 2010-06-23 | 台州信溢农业机械有限公司 | Combined distributing valve |
| CN201546940U (en) * | 2009-10-29 | 2010-08-11 | 浙江大农实业有限公司 | Pressure regulating system of high pressure plunger pump with easy-to-start function |
| CN205298668U (en) * | 2016-01-13 | 2016-06-08 | 台州信溢农业机械有限公司 | Modular high pressure air -vent valve |
-
2016
- 2016-01-13 CN CN201610019880.6A patent/CN105605233B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE742924A (en) * | 1968-10-12 | 1970-05-14 | ||
| CN2347671Y (en) * | 1998-10-23 | 1999-11-10 | 新疆农业科学院农业机械化研究所 | Multi-functional atomization pressure regulating valve |
| CN2615457Y (en) * | 2003-04-28 | 2004-05-12 | 罗昌国 | Pressure regulating valve for plunger pump |
| CN201302011Y (en) * | 2008-11-17 | 2009-09-02 | 浙江大农实业有限公司 | Pressure regulating valve |
| CN201513593U (en) * | 2009-10-19 | 2010-06-23 | 台州信溢农业机械有限公司 | Combined distributing valve |
| CN201546940U (en) * | 2009-10-29 | 2010-08-11 | 浙江大农实业有限公司 | Pressure regulating system of high pressure plunger pump with easy-to-start function |
| CN205298668U (en) * | 2016-01-13 | 2016-06-08 | 台州信溢农业机械有限公司 | Modular high pressure air -vent valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105605233A (en) | 2016-05-25 |
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