CN202493724U - Valve device - Google Patents

Valve device Download PDF

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Publication number
CN202493724U
CN202493724U CN2012200015427U CN201220001542U CN202493724U CN 202493724 U CN202493724 U CN 202493724U CN 2012200015427 U CN2012200015427 U CN 2012200015427U CN 201220001542 U CN201220001542 U CN 201220001542U CN 202493724 U CN202493724 U CN 202493724U
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CN
China
Prior art keywords
valve
groove
fluid
control valve
outlet
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Expired - Lifetime
Application number
CN2012200015427U
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Chinese (zh)
Inventor
汉斯·奥利弗·翰松
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Durgo AB
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Durgo AB
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Filing date
Publication date
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Publication of CN202493724U publication Critical patent/CN202493724U/en
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    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03C—DOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; SINKS
    • E03C1/00—Domestic plumbing installations for fresh water or waste water; Sinks
    • E03C1/02—Plumbing installations for fresh water
    • E03C1/10—Devices for preventing contamination of drinking-water pipes, e.g. means for aerating self-closing flushing valves
    • E03C1/108—Devices for preventing contamination of drinking-water pipes, e.g. means for aerating self-closing flushing valves having an aerating valve
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03C—DOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; SINKS
    • E03C1/00—Domestic plumbing installations for fresh water or waste water; Sinks
    • E03C1/02—Plumbing installations for fresh water
    • E03C1/10—Devices for preventing contamination of drinking-water pipes, e.g. means for aerating self-closing flushing valves
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03C—DOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; SINKS
    • E03C1/00—Domestic plumbing installations for fresh water or waste water; Sinks
    • E03C1/12—Plumbing installations for waste water; Basins or fountains connected thereto; Sinks
    • E03C1/122—Pipe-line systems for waste water in building
    • 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
    • F16K24/00—Devices, e.g. valves, for venting or aerating enclosures
    • F16K24/06—Devices, e.g. valves, for venting or aerating enclosures for aerating only
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00—Water conservation; Efficient water supply; Efficient water use
    • Y02A20/20—Controlling water pollution; Waste water treatment

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  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Self-Closing Valves And Venting Or Aerating Valves (AREA)
  • Valve Housings (AREA)

Abstract

The application provides a valve device. The valve device comprises a valve housing. The valve housing includes: an inlet connected to a fluid charging pipeline system; an outlet connected to a fluid discharging conduit; and a casing positioned between the inlet and the outlet. The casing comprises: an inner surface which is provided with a first groove that connects the inlet with the outlet; and a valve unit which switches between a first closing state and a second opening state and is equipped with a valve member and a pass-through groove. The valve member is suitable for being abutted against a first valve seat. The interior surface of the first groove is provided with at least one shoulder portion. The shoulder portion is designed in a way that when a valve plate is pressed against the shoulder portion, the upper surface of the valve plate is positioned in the groove so as to make a part of the groove be kept among all shoulder portions and positioned above the upper surface of the valve plate. The valve device of the application helps to prevent polluted fluid from flowing into a distribution pipeline system when pressure of fluid in the distribution pipeline system suddenly falls.

Description

Control valve unit
Technical field
The utility model relates to a kind of control valve unit that is suitable for fluid.
Background technique
In many examples of society, fluid is transmitted or is handled via fluid feed system in modern times, and said fluid feed system can comprise fluid distribution pipe system and/or piping network.Fluid is flowed.This is the situation in multiple industry, and wherein fluid can be handled through pipeline, and potable water can distribute via the tap water network in cities and towns and city.
In this, pending fluid can be the fluid that must keep predetermined pure standard.Therefore, common utmost importance is that ducted fluid is retained as not comtaminated.
Sometimes, be connected to the distribution duct system outflow conduit or conveyance conduit can with possibly dirty, poisonous or contaminated external fluid contact.If the pressure in the distribution duct system descends, so just there is a certain amount of external fluid to flow back into the risk in the distribution duct system through conveyance conduit.And this can cause the pollution of fluid in the distribution duct system, and when the network hydrodynamic pressure was rebulid, contaminanted fluid may be assigned with via the distribution duct system.
Therefore, if it is not comtaminated to make that fluid in the fluid distribution pipe system remains, then prevent this outside, maybe contaminanted fluid flow in the fluid distribution pipe system and be necessary.
For this purpose, known a kind of control valve unit is provided, be used for when the hydrodynamic pressure of distribution duct system descends suddenly, preventing that this contaminated fluid from flowing in the distribution duct system.Exist multiple reason possibly cause taking place this decline of hydrodynamic pressure in the distribution duct system in the operation period of distribution duct system.Possibly cause the hydrodynamic pressure that reduces in the distribution duct system owing to the damage (this causes the quantity of liquid seepage) of main service.When the distribution duct system for example was embodied as the tap water network, the hydrodynamic pressure of this reduction possibly cause owing to fire-fighting truck obtains/draw big water gaging from the tap water network suddenly.
The model utility content
A purpose of the utility model is to solve the problem that realizes improved control valve unit.
This purpose is resolved through the solution according to the utility model.
According to the utility model; A kind of control valve unit is provided, and said control valve unit is installed in the air ambient with first environment pressure rating, and said control valve unit comprises valve chest; Said valve chest has: inlet, and said inlet is connected to the pipeline for fluids system with second pressure rating; Outlet, said outlet is connected to fluid and confesses conduit; And housing, said housing is positioned between said inlet and the said outlet.Said housing has: internal surface, and said internal surface forms first groove that connects said inlet and said outlet; And valve cell; Said valve cell can be changed between first closed state and second open mode according to the pressure reduction between said second pressure rating and the said first environment pressure rating in operation; Said valve cell has the valve member that can move and passes through groove; It is characterized in that; Said valve member is suitable for against first valve seat, and said first valve seat is arranged on the at of the internal surface of said housing, and the said internal surface of said first groove is provided with at least one shoulder on each side of said groove; And the shape and size of wherein said shoulder are designed to when said valve plate is resisted against on the said shoulder, and the upper surface of said valve plate will be positioned in the said groove so that the part of said groove remains between the said shoulder and is positioned at above the upper surface of said valve plate.
Further; The utility model provides a kind of control valve unit, wherein, and in said first state of said valve cell; Said valve member matches with said first valve seat to cover the said groove that passes through; And, during said second state, saidly be opened and air flow into said first groove from said housing environment through groove.
Further, the utility model provides a kind of control valve unit, wherein, is being resisted against on said first valve seat to valve member seal described in first closed state of said valve cell.
Through the control valve unit of the utility model, realized following beneficial effect: the hydrodynamic pressure in the distribution duct system prevents when descending suddenly that contaminated fluid from flowing in the distribution duct system.
Description of drawings
In order to understand the utility model easily, will the utility model be described through the mode of example and with reference to accompanying drawing, wherein:
Fig. 1 shows the mode of execution of the fuid distribution system that comprises the fluid distribution pipe system.
Fig. 2 is the schematic representation of Fig. 1 fuid distribution system when the hydrodynamic pressure grade that occurs in the fluid distribution pipe system reducing.
Fig. 3 A is the side cross-sectional view of the mode of execution of backsiphonage control valve unit.
Fig. 3 B is the side cross-sectional view of another mode of execution of backsiphonage control valve unit.
Fig. 4 A and Fig. 4 B are embodiment's the cross section stereo side views of the middle body of the control valve unit that illustrates between straight line X1 and the X2 in Fig. 3 A and/or Fig. 3 B.
Fig. 4 C is the side cross-sectional view of middle body 200 of the valve chest 100 of Fig. 4 B.
Fig. 4 D is the viewgraph of cross-section along the line C-C intercepting of Fig. 4 C.
Fig. 4 E is the cross-sectional side view of the middle body 200 of Fig. 4 A valve chest 100, shows the control valve unit 70 under the closed state.
Fig. 4 F is the viewgraph of cross-section along the line D-D intercepting of Fig. 4 E.
Embodiment
Fig. 1 shows a mode of execution of fuid distribution system 10.The fuid distribution system 10 of Fig. 1 comprises the fluid source case 20 with outlet 30, and said outlet 30 is used for fluid is sent to fluid distribution pipe system 35.The fluid distribution pipe system layout is sentenced certain hydrodynamic pressure grade Po fluid is provided for making it possible to confess conduit 40 at one or more fluid.Confess conduit 40 and can be connected to the outlet 42 that is associated.Fluid output 42 can comprise valve 45, and the outlet opening 48 be associated in order to let fluid flow out, this valve 45 can be operating as to be opened.The outlet opening 48 that when valve 45 is closed, does not have fluid to flow out to be associated.
Fuid distribution system 10 can be designed as and makes that under normal circumstances the hydrodynamic pressure grade Po at fluid output 42 places has pressure minimum grade P OM
According to a mode of execution, fluid source case 20 is pressurized so that reach suitable hydrodynamic pressure at outlet 30 places of fluid source case 20.This can realize through the mode of fluid pressurized pump (not shown).Fluid source case 20 can pressurizedly make that under normal circumstances the hydrodynamic pressure grade Po at fluid output 42 places has pressure minimum grade P by this way OM
According to another mode of execution, hydrodynamic pressure is realized through gravity and through the difference between the height of fluid level that is higher than the sea level 50 in the fluid source case 20 and fluid output 42.Therefore, gravity can be along arrow F among Fig. 1 GThe fluid of directive effect in fluid distribution pipe system 35 on so that under normal circumstances the hydrodynamic pressure grade Po at fluid output 42 places has pressure minimum grade P OM
Fluid distribution pipe system 35 can have the pipeline 72 that is used to be connected to control valve unit 70.Pipeline 72 is parts of pipe section 60, and pipe section 60 is located to such an extent that be higher than exit opening 48.According to a mode of execution, pipe section 60 can comprise having the crooked fluid conduit systems of inverted roughly U-shaped.In other words, pipe section 60 can comprise the pipe section that roughly forms inverted letter " U ".
In addition, confess conduit 40 and can have the pipeline 74 that is used to be connected to control valve unit 70.Control valve unit 70 can be arranged the certain altitude D place of fluid output 42 tops, and fluid output 42 is connected with the pipeline 72 of fluid distribution pipe system 35.According to a mode of execution fuid distribution system 35 can be arranged so that certain distance D for along with gravity F GAt least the 100mm of direction in the opposite direction.D is 300mm at least according to another mode of execution certain distance.
Therefore, control valve unit 70, pipeline 74, confess conduit 40 and fluid output 42 and constitute fluid contamination protective equipments 75.According to a mode of execution of fluid contamination protective equipment 75, control valve unit 70 is arranged in the certain altitude D place of fluid output 42 tops.
Fluid contamination protective equipment 75 (comprising control valve unit 70) is used for anti-fluid and is back to fluid distribution pipe system 35 from exit opening 48.
Fuid distribution system 10 is arranged as convection cell distribution duct system 35 certain hydrodynamic pressure is provided.Referring to Fig. 1, when fluid does not flow, be in the hydrodynamic pressure P that receives in the pipe-line system 35 under normal operation at height y1 35: 1To equal the conveyance fluid pressure P at equal height y1 place D1Yet mobile these pressure ratings that influences of fluid still under normal operation when fluid flows, are in the hydrodynamic pressure P that receives in the pipe-line system 35 at height y1 35: 1To depend on the hydrodynamic pressure P that identical height y1 place carries D1In addition, under normal circumstances when valve cuts out at 42: 1, be in the pressure rating P that confesses in the conduit 40: 1 at identical height y1 O: 1Will be substantially equal to height y1 and be in the hydrodynamic pressure P that receives in the pipe-line system 35 35: 1Under normal circumstances open valve and will cause confessing the pressure rating P in the conduit 40: 1 at 42: 1 O: 1Become than the hydrodynamic pressure grade P in the pipe-line system 35 at height y1 place 35: 1Lower, therefore because higher pressure P 35: 1Will be in confessing conduit 40: 1 lower pressure P O: 1Propelling fluid causes the exit opening 48: 1 that fluid is associated outflow.Certainly, the air pressure P of 48: 1 surrounding environment of this supposition exit opening Ay1Be lower than the hydrodynamic pressure grade P that confesses in the conduit 40: 1 O: 1
Fig. 2 is the pressure rating P when fluid 35: 1The schematic representation of the fuid distribution system 10 of (referring to Fig. 2) Fig. 1 when reducing.The pressure rating P that reduces 35: 1Can be because for example a large amount of suddenly outflows of fluid cause at point 80 places (referring to Fig. 2) in fluid distribution pipe system 35.A large amount of outflows of point 80 place's fluids can be for example because the damage of service at point 80 places causes, said damage causes the quantity of liquid leakage.When the distribution duct system was embodied as the tap water network, for example, the reduction of this hydrodynamic pressure possibly cause owing to fire-fighting truck perhaps obtains/draw big water gaging in point 80 location downstream suddenly from the tap water network at point 80 places.When exit opening 48: 1 when one of top water tap such as the high-rise of so-called " skyscraper " is associated, when many taps of building lower level are opened simultaneously, can cause the hydrodynamic pressure that reduces.
As shown in Figure 2, exit opening 48: 1 can be below this time point be immersed in the flow surface 90 of fluid pool 92.When fuid distribution system 10 was tap water network 10, fluid pool 92 can be the tank 92 that is full of addle.If the hydrodynamic pressure grade P that tap is in open mode and fluid distribution pipe system 35 at 45: 1 35: 1Drop to the pressure rating P in the fluid at 48: 1 places of exit opening 48: 1When following, if in pipe section 60, do not comprise suitable backsiphonage control valve unit 70 so, siphonage will be tending towards water siphon from pool 92 is come out and entered into fluid distribution pipe system 35.Therefore, the pollution that backsiphonage control valve unit 70 can be avoided fluid in the pipeline 35 of fluid distribution pipe system 35 is set.Another example of risk configuration comprises the gardening flexible pipe that is connected to valve cock 45.For example; If the gardening flexible pipe is stayed on the ground in garden; Valve cock 45 is in open mode, just possibly produce the puddle, under the situation that the hydrodynamic pressure in pipe-line system 35 reduces suddenly so; If in pipe section 60, do not comprise suitable backsiphonage control valve unit 70, siphonage will be tended to the water in the siphon puddle and make the water of institute's siphon enter into fluid distribution pipe system 35.
Yet this siphonage will cause hydrodynamic pressure P in the pipe section 60: 1 inherently F60: 1Reduction.In fact, when pipe section is arranged in the certain distance D place of 48: 1 tops of exit opening at 60: 1, hydrodynamic pressure P so F60: 1Will correspondingly be lower than the hydrodynamic pressure P in the pool 92 48: 1It should be understood that the hydrodynamic pressure P in the pool 92 48: 1With the atmospheric pressure that is equal to or higher than flow surface 90 places in the pool 92.Therefore, siphonage will cause the hydrodynamic pressure P in the pipe section 60: 1 inherently F60: 1Reach than the atmospheric pressure P in the atmosphere around the backsiphonage control valve unit 70 A60: 1Lower grade.
A mode of execution of backsiphonage control valve unit
Fig. 3 is the side cross-sectional view of a mode of execution of backsiphonage control valve unit 70.Fig. 3 shows the elongated tubular product such valve chest 100 that comprises through-flow groove 105.The valve chest 100 of control valve unit 70 has inlet 210 at first end 108 places of housing 100, be used to be connected to the pipeline 72 of pipeline for fluids system 35.The valve chest 100 of control valve unit 70 also has outlet 220 at the second end 110 places of housing 100, confess conduit 74,40 so that be connected to fluid.
Can with many different modes realize entering the mouth 210 with pipeline 72 between be connected and export 220 and confess conduit 74, being connected between 40 with fluid.
According to a mode of execution, be provided with first pipe jointer 107 at first end 108 places of housing 100, and be provided with second pipe jointer 109 at the second end 110 places of housing 100.The inner surface of the end 108,110 of housing 100 can correspondingly comprise recessed portion 121 so that the respective end of receiving pipeline 72 and 74 (referring to Fig. 1 and Fig. 2).The pipe jointer 107 that illustrates can comprise respectively that with connector 109 clamp ring is connected.When recessed portion 121 was corresponding with the wall thickness of pipeline 72 and 74 (referring to Fig. 1 and Fig. 2), groove 105 can have the corresponding cross-section area of free cross-section area with pipeline 72 and 74.
Housing 100 is provided with hole 122, and this hole 122 extends to groove 105 from the lower external face of housing 100.Valve cell 130 can be installed (for example twisting) to hole 122.Hole 122 intersects with groove 105 and is depicted as and has than groove 105 bigger diameters so that can receive valve plate 131.Valve plate 131 can have round-shaped, and its diameter is less than the diameter in hole 122.Replacedly, the diameter of valve plate 131 can be consistent with the diameter in hole 122.Valve plate 131 can be resisted against (referring to Fig. 4 A and/or 4B) on first base 140 hermetically, and said first base 140 carries seal arrangement 142.Seal arrangement 142 can be presented as O shape ring 142 (referring to Fig. 3).
Valve plate 113 is carried by the central shaft that in guide 160, is directed 150.Guide 160 is carried by lining 170 through the media of adjutage radially, and wherein lining 170 is fixed and the wall that is connected to hole 122 hermetically passes through groove 180 so that lining 170 has by what valve plate 131 covered.Cross-section area through groove 180 can be roughly consistent with the cross-section area of enclosure slot 105.As shown in Figure 3, according to a mode of execution, when said plate is placed on 140 last times of its base, valve plate 131 can be positioned at the outside of the cross sectional area of groove 105.
It is obvious that from Fig. 3, and valve chest only need have makes and can between the wall in valve cell 130 and hole 122, set up traditional wall thickness that is connected that the air of valve cell 130 can have and the corresponding cross-section area of the cross-section area of groove 105 through groove 180 whereby.Valve cell 130 can only be formed with little (if having) projection from valve chest 100.
The mode of execution of control valve unit 70 can be to distinguish proportional different size productions with conduit or pipeline 72 and 74.
Fig. 4 A and Fig. 4 B are the cross section stereo side views of mode of execution of the straight line X1 in Fig. 3 and the middle body between the X2 of control valve unit 70.The mode of execution of the middle body of valve chest 100 is here indicated by reference character 200.
Fig. 4 A shows when control valve unit 70 is in its operating position the middle body 200 of (, when valve plate 131 is resisted against first base 140 hermetically) control valve unit 70.First base 140 can carry seal arrangement 142 (referring to Fig. 3).
Fig. 4 B shows when control valve unit 70 is shown in an open position the middle body 200 of (, when valve plate 131 is positioned at apart from first base, 140 1 distance) control valve unit 70.
A mode of execution of control valve unit 70 is suitable for being installed in and has external pressure P A60: 1Air ambient in (referring to Fig. 3).The valve chest 100 of control valve unit 70 has inlet 210 and outlet 220, and said inlet is used to be connected to and has hydrodynamic pressure P F60: 1The pipeline 72 of pipeline for fluids system 35, said outlet 220 is used to be connected to the outlet 220 that fluid is confessed conduit 74,40.Being positioned at inlet 210 and the enclosure body 100,200,130 of outlet between 220 has and is used to make inlet 210 and exports 220 grooves 105 that are connected; Said groove 105 is limited the internal surface 225 of said housing.Arrow 227 indication when valve cell 130 is in closed state (referring to Fig. 4 A and Fig. 4 E) and when valve 45 (referring to Fig. 1) when being in open mode fluid flow through the direction of groove 105.
Depend on the pressure P in the groove 105 F60: 1With control valve unit 70 ambient air environment pressure P A60: 1Between pressure differential deltap P, valve cell 130 has closed state and open mode.As hydrodynamic pressure P F60: 1Be in external pressure P A60: 1Valve cell 130 is advantageously taked open mode when following, so that air can be inhaled into the groove 105 from the housing environment, thereby anti-fluid is confessed conduit 74,40 from said fluid and refluxed.
Fig. 4 C is the side cross-sectional view of middle body 200 of the valve chest 100 of Fig. 4 B, shows the valve cell that is in open mode.In Fig. 4 C with arrow 229 show air stream from environment via the direction that enters into groove 105 through groove 180.
Can know that in Fig. 4 A, Fig. 4 B, Fig. 4 C, Fig. 4 D, Fig. 4 E, Fig. 4 F what see is that under the open mode of valve cell, valve plate 131 can be against shoulder 230.Shoulder 230 has and is suitable under the open mode of control valve unit 70 surface 232 that a part of upper surface with valve plate 131 meets.Shoulder 230 can be arranged at least one side of groove 105, makes that the part 235 of groove 105 stays open above the upper surface of valve plate 131 when valve plate 131 during against shoulder 230.
With reference to Fig. 4 F, on each side of groove 105, can be provided with a shoulder 230.Shown in Fig. 4 D and Fig. 4 F, shoulder 230 can protrude in the cross-section area of groove 105.The shape and size of shoulder 230 can be designed in such a way that the upper surface of valve plate 131 will be positioned in the groove 105 so that the part 235 of groove 105 remains on the top of the upper surface of valve plate 131 so when valve plate 131 during against shoulder 230.
As stated, advantageously, in response to the hydrodynamic pressure P that reduces F60: 1, control valve unit 70 is taked open position, so that air can flow into the groove 105 in case fluid is confessed the backflow of conduit 74,40 from said fluid from the housing environment.

Claims (3)

1. a control valve unit (70), said control valve unit is installed in has first environment pressure rating (P A60: 1) air ambient in, said control valve unit comprises:
Valve chest (100,200), said valve chest has:
Inlet (210), said inlet is connected to has the second pressure rating (P F60: 1) pipeline for fluids system (35,72);
Outlet (220), said outlet is connected to fluid and confesses conduit (74,40); And
Housing (100,200,130), said housing are positioned between said inlet (210) and the said outlet (220), and said housing has:
Internal surface, said internal surface forms first groove (105) that connects said inlet (210) and said outlet (220); With
Valve cell (130), said valve cell can be in operation according to the said second pressure rating (P F60: 1) and said first environment pressure rating (P A60: 1) between pressure reduction (Δ P) and between first closed state and second open mode, change, said valve cell (130) has the valve member (131) that can move and through groove (180), it is characterized in that,
Said valve member (131) is suitable for against first valve seat (140), and said first valve seat is arranged on the at of the internal surface of said housing (100),
The said internal surface of said first groove (105) is provided with at least one shoulder (230A, 230B) on each side of said groove (105), and
The shape and size of said shoulder (230A, 230B) are designed to be resisted against said shoulder (230A, 230B) last time when said valve plate (131), and the upper surface of said valve plate (131) will be positioned in the said groove (105) so that the part (235) of said groove (105) remains between the said shoulder (230A, 230B) and is positioned at the upper surface top of said valve plate (131).
2. control valve unit according to claim 1 is characterized in that,
In said first closed state of said valve cell (130), said valve member (131) matches said through groove (180) to cover with said first valve seat (140), and,
During said second open mode, saidly be opened and air flow into said first groove (105) from said housing environment through groove (180).
3. control valve unit according to claim 2 is characterized in that,
Be resisted against hermetically on said first valve seat (140) at valve member (131) described in first closed state of said valve cell (130).
CN2012200015427U 2011-10-27 2012-01-04 Valve device Expired - Lifetime CN202493724U (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE1151001-3 2011-10-27
SE1151001A SE536374C2 (en) 2011-10-27 2011-10-27 valve assembly

Publications (1)

Publication Number Publication Date
CN202493724U true CN202493724U (en) 2012-10-17

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ID=46999956

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2012200015427U Expired - Lifetime CN202493724U (en) 2011-10-27 2012-01-04 Valve device

Country Status (2)

Country Link
CN (1) CN202493724U (en)
SE (1) SE536374C2 (en)

Also Published As

Publication number Publication date
SE1151001A1 (en) 2013-04-28
SE536374C2 (en) 2013-09-24

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Granted publication date: 20121017

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