CN110056659A - Chlorine forged steel check valve - Google Patents
Chlorine forged steel check valve Download PDFInfo
- Publication number
- CN110056659A CN110056659A CN201810050199.7A CN201810050199A CN110056659A CN 110056659 A CN110056659 A CN 110056659A CN 201810050199 A CN201810050199 A CN 201810050199A CN 110056659 A CN110056659 A CN 110056659A
- Authority
- CN
- China
- Prior art keywords
- valve
- flap
- bellows
- forged steel
- valve rod
- 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.)
- Pending
Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 58
- 239000010959 steel Substances 0.000 title claims abstract description 58
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 title claims abstract description 23
- 229910052801 chlorine Inorganic materials 0.000 title claims abstract description 23
- 239000000460 chlorine Substances 0.000 title claims abstract description 23
- 239000000428 dust Substances 0.000 claims abstract description 8
- 238000003825 pressing Methods 0.000 claims abstract description 6
- 238000007789 sealing Methods 0.000 claims description 24
- 238000000034 method Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 8
- 238000005242 forging Methods 0.000 description 4
- 229910001208 Crucible steel Inorganic materials 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 241000233855 Orchidaceae Species 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- 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
- F16K1/02—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 with screw-spindle
-
- 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
- F16K1/36—Valve members
- F16K1/38—Valve members of conical shape
-
- 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
- F16K1/48—Attaching valve members to screw-spindles
- F16K1/482—Attaching valve members to screw-spindles with a collar on the spindle or a groove in the spindle, by which a fixing element is supported, the spindle reaching into the valve member
-
- 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
- F16K41/00—Spindle sealings
- F16K41/02—Spindle sealings with stuffing-box ; Sealing rings
-
- 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
- F16K41/00—Spindle sealings
- F16K41/10—Spindle sealings with diaphragm, e.g. shaped as bellows or tube
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Details Of Valves (AREA)
- Check Valves (AREA)
Abstract
The invention discloses a kind of chlorine forged steel check valves, it include: forged steel valve body, the lower end of the forged steel valve body is provided with intake channel and exit passageway, the upper end of the forged steel valve body is provided with forged steel valve deck, valve rod is provided in the valve body, the upper end of the valve rod connects hand wheel component, the lower end of the valve rod connects flap component, airtight and watertight padding and pressing plate are provided between valve rod and forged steel valve deck, the hand wheel component includes: dust cap, handwheel, valve stem nut, flange bracket and flat key, handwheel is connect by flat key with valve stem nut, dust cap is arranged above handwheel and is connected by screw thread with valve stem nut, flange bracket is axially rotatably assorted with valve stem nut, flange bracket is connected by column with forged steel valve deck, the flap component includes: small flap and big valve flap, the diameter of small flap is less than big valve flap, institute It states and spacing sliding chamber is set in big valve flap.
Description
Technical field
The present invention relates to a kind of valve more particularly to a kind of chlorine forged steel check valves.
Background technique
Chlorine cutoff valve is in chemical industry for controlling and adjusting a kind of common valve of the deep-etchings flow media such as chlorine
Door.Existing chlorine cut-off specifically includes that valve body, the lower end of the valve body is provided with intake channel and exit passageway, in institute
The upper end for stating valve body is provided with valve deck, valve rod is provided in the valve body, the upper end of the valve rod connects hand wheel component, described
The lower end of valve rod connects flap component, airtight and watertight padding and pressing plate is provided between valve rod and cast steel valve deck, in the lower section of valve rod
Outer sheath is equipped with bellows, and one end of the bellows is welded on cast-steel valve and covers, and the other end of the bellows is welded on valve
On bar.Existing chlorine cutoff valve is primarily present following disadvantage: one, airtight and watertight padding and one are only depended between valve rod and valve deck
Bellows is sealed, poor sealing effect；Two, it is also easier that chlorine leakage occurs between valve deck and valve body, it is hidden to there is safety
Suffer from；Three, intake channel and exit passageway can only be once truncated in existing chlorine cutoff valve, and truncation effect is poor, once valve
Valve or valve seat damage will be unable to the conveying for cutting off chlorine in time；It four, is all hard between flap and valve seat when existing valve is closed
Contact, wear rate is high, and service life is short.
Summary of the invention
The technical problems to be solved by the present invention are: providing a kind of chlorine forged steel check valve that sealing effect is good.
In order to solve the above-mentioned technical problem, the technical solution adopted by the present invention is that: chlorine forged steel check valve, comprising: forged steel
Valve body is provided with intake channel and exit passageway in the lower end of the forged steel valve body, is provided in the upper end of the forged steel valve body
Forged steel valve deck, is provided with valve rod in the valve body, and the upper end of the valve rod connects hand wheel component, the lower end connection of the valve rod
Flap component, is provided with airtight and watertight padding and pressing plate between valve rod and forged steel valve deck, and the hand wheel component includes: dust cap, hand
Wheel, valve stem nut, flange bracket and flat key, handwheel are connect by flat key with valve stem nut, and dust cap is arranged above handwheel simultaneously
It is connected by screw thread with valve stem nut, flange bracket is axially rotatably assorted with valve stem nut, and flange bracket passes through column and forging
Steel valve deck is connected, and the flap component includes: small flap and big valve flap, and the diameter of small flap is less than big valve flap, in the big valve
Spacing sliding chamber is set in valve, is extended through in the spacing sliding chamber upper and lower ends and is provided with the slide opening interconnected with it, it is described
Valve stem slides are threaded through in slide opening, and the lower end of the valve rod stretches out big valve flap and is connected with small flap, in the spacing sliding chamber
Valve rod on be provided with the position limiting slide block being slidably matched with spacing sliding chamber, the outside of slide opening between the big valve flap and small flap
It is provided with bellows, the upper end of the bellows is welded on big valve flap, and the lower end of the bellows is welded on small flap,
It is provided with platen on the valve rod of the big valve flap upper end, spring, institute are arranged on the valve rod between the big valve flap and platen
The upper end and platen for stating spring offset, and lower end and the big valve flap of the spring offset, it is described in the forging steel valve body it is close
The side of intake channel be provided with the mutually matched small valve seat of small flap, be arranged in the forging steel valve body of the small valve seat upper end
Have with the mutually matched big valve seat of big valve flap, is set gradually from the bottom up on the outside of the valve rod between the platen and forged steel valve deck
There are bellows primary seal device, bellows two stage sealing device and bellows three-stage sealing device, the bellows level-one is close
The structure of seal apparatus includes: on the first lower fixed disk being fixed on forged steel valve body and first be fixed on valve rod
Fixed disk is welded with the first bellows between fixed disk on first lower fixed disk and first, fixes under described first
First through hole is provided in the middle part of disk, the valve rod is threaded through in the first bellows and first through hole, the hole of the first through hole
Diameter is greater than the maximum gauge of platen, and the structure of the bellows two stage sealing device includes: to be fixed on forged steel valve body
Second lower fixed disk and it is fixed at fixed disk on second on valve rod, the fixed disk on second lower fixed disk and second
Between be welded with the second bellows, the second through-hole is provided in the middle part of second lower fixed disk, the valve rod is threaded through
In two bellowss and the second through-hole, the aperture of second through-hole is greater than the diameter of fixed disk on first, the bellows three-level
The structure of sealing device includes: the third bellows being set on valve rod, and the upper end of the third bellows is welded on forging steel valve
It covers, the lower end of the third bellows is welded on valve rod.
The invention has the advantages that above-mentioned chlorine forged steel check valve, valve body is designed using forged steel, can be suitable for 15cm~
The small-bore conveying of 40cm, using multistage sealing structure, bellows primary seal device and bellows two stage sealing device can
To carrying out dual-seal, bellows primary seal device, bellows two stage sealing device, bellows three-level between valve deck and valve body
Sealing device and airtight and watertight padding can be to four resealings be carried out between valve deck and valve rod, sealing effect is good, can effectively prevent chlorine
Leakage, eliminates safe hidden trouble, and can be cut twice simultaneously to intake channel and exit passageway using large and small flap and valve seat
Disconnected, truncation effect is good, can cut off the conveying of chlorine in time having a flap or valve seat damage and pass through when valve is closed
Spring can buffer impact when flap is contacted with valve seat, reduce wear rate, prolong the service life.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of chlorine forged steel check valve of the present invention.
In figure: 1, forged steel valve body, 2, intake channel, 3, exit passageway, 4, forged steel valve deck, 5, valve rod, 6, airtight and watertight padding, 7,
Pressing plate, 8, dust cap, 9, handwheel, 10, valve stem nut, 11, flange bracket, 12, flat key, 13, column, 14, small flap, 15, big
Flap, 16, spacing sliding chamber, 17, slide opening, 18, position limiting slide block, 19, bellows, 20, platen, 21, spring, 22, small valve seat, 23,
Big valve seat, the 24, first lower fixed disk, fixed disk on 25, first, the 26, first bellows, 27, first through hole, 28, second is lower solid
Price fixing, fixed disk on 29, second, the 30, second bellows, the 31, second through-hole, 32, third bellows.
Specific embodiment
Particular content of the invention is described in detail in the following with reference to the drawings and specific embodiments.
As shown in Figure 1, chlorine forged steel check valve, comprising: forged steel valve body 1, the lower end of the forged steel valve body 1 be provided with into
Mouth channel 2 and exit passageway 3, are provided with forged steel valve deck 4 in the upper end of the forged steel valve body 1, are provided with valve in the valve body 1
Bar 5, the upper end of the valve rod 5 connect hand wheel component, and the lower end of the valve rod 5 connects flap component, in valve rod 5 and forged steel valve deck
Airtight and watertight padding 6 and pressing plate 7 are provided between 4, the hand wheel component includes: dust cap 8, handwheel 9, valve stem nut 10, Support Method
Orchid 11 and flat key 12, handwheel 9 are connect by flat key 12 with valve stem nut 10, and dust cap 8 is arranged above handwheel 9 and passes through screw thread
Be connected with valve stem nut 10, flange bracket 11 and valve stem nut 10 are axial to be rotatably assorted, flange bracket 11 by column 13 with
Forged steel valve deck 4 is connected, and the flap component includes: small flap 14 and big valve flap 15, and the diameter of small flap 14 is less than big valve flap 15,
Spacing sliding chamber 16 is set in the big valve flap 15, extends through and is provided with it mutually in 16 upper and lower ends of spacing sliding chamber
The slide opening 17 of connection, the sliding of valve rod 5 are threaded through in slide opening 17, and big valve flap 15 and small flap are stretched out in the lower end of the valve rod 5
14 are connected, and the position limiting slide block 18 being slidably matched with spacing sliding chamber 16 is provided on the valve rod 5 in the spacing sliding chamber 16,
The outside of slide opening 17 is provided with bellows 19 between the big valve flap 15 and small flap 14, and the upper end of the bellows 19 is welded on
On big valve flap 15, the lower end of the bellows 19 is welded on small flap 14, is arranged on the valve rod 5 of 15 upper end of big valve flap
There is platen 20, spring 21, the upper end of the spring 21 and pressure are arranged on the valve rod 5 between the big valve flap 15 and platen 20
Disk 20 offsets, and lower end and the big valve flap 15 of the spring 21 offset, in the intake channel 2 close in the forged steel valve body 1
Side be provided with the mutually matched small valve seat 22 of small flap 14, be arranged in the forged steel valve body 1 of small 22 upper end of valve seat
Have with the mutually matched big valve seat 23 of big valve flap 15, on the outside of the valve rod 5 between the platen 20 and forged steel valve deck 4 from the bottom up
It is disposed with bellows primary seal device, bellows two stage sealing device and bellows three-stage sealing device, the ripple
The structure of pipe primary seal device includes: the first lower fixed disk 24 being fixed on forged steel valve body 1 and is fixed at valve
On bar 5 first on fixed disk 25, be welded with the first ripple between fixed disk 25 on first lower fixed disk 25 and first
Pipe 26 is provided with first through hole 27 at the middle part of first lower fixed disk 18, and the valve rod 5 is threaded through 26 He of the first bellows
In first through hole 27, the aperture of the first through hole 27 is greater than the maximum gauge of platen 20, the bellows two stage sealing device
Structure include: solid on the second lower fixed disk 28 being fixed on forged steel valve body 1 and be fixed on valve rod 5 second
Price fixing 29 is welded with the second bellows 30 between fixed disk 29 on second lower fixed disk 28 and second, described second
The middle part of lower fixed disk 29 is provided with the second through-hole 31, and the valve rod 5 is threaded through in the second bellows 30 and the second through-hole 31, institute
The aperture for stating the second through-hole 31 is greater than the diameter of fixed disk 25 on first, and the structure of the bellows three-stage sealing device includes:
The upper end of the third bellows 32 being set on valve rod 5, the third bellows 32 is welded on forged steel valve deck 4, the third
The lower end of bellows 32 is welded on valve rod 5.
Above-mentioned chlorine forged steel check valve is in use, rotation handwheel 9, handwheel 9 drive valve stem nut 10 vertical by flat key 12
It is rotated on column 13, valve stem nut 10 is moved down with ovable valve stem 5, and valve rod 5 drives platen 20, small flap 14 and big valve flap 15 simultaneously
It moves down, when big valve flap 15 is contacted with big valve seat 24, small flap 14 is not contacted with small valve seat 23 also, and valve rod 5 continues to drive
Fixed disk 20 and small flap 14 move down, and valve rod 5 drives the slide downward in spacing sliding chamber 16 of position limiting slide block 18 simultaneously, fixed
20 compressed spring 21 of disk, spring 21 apply pressure to big valve flap 15, and when small flap 14 offsets with small valve seat 23, big valve flap 15 exists
The pressure effect of spring 21 is lower tightly to fit together with big valve seat 24, and valve is closed, at this point, intake channel 2 and outlet are logical
Road 3 is separated twice simultaneously by small flap 14 and big valve flap 15, and valve rod 5 is also driven on first simultaneously in fixed disk 25 and second
Fixed disk 29 moves down, and fixed disk 25 drives the first bellows 26 to shrink on first, and fixed disk 29 drives the second wave on second
Line pipe 30 is shunk, and valve rod 5 drives third bellows 32 to stretch；Rotate backward handwheel 9 carry out reset can be connected to 2 He of intake channel
Exit passageway 3, since the aperture of the first through hole 31 is greater than the maximum gauge of platen 20, the aperture of second through-hole 31 is big
The diameter of fixed disk 25 on first, platen 20 can be extend into first through hole 31, and fixed disk 25 can extend into second on first
In through-hole 31, it will not interfere.
Above-mentioned chlorine forged steel check valve, valve body are designed using forged steel, can be suitable for the small-bore conveying of 15cm~40cm,
Using multistage sealing structure, bellows primary seal device and bellows two stage sealing device can between valve deck and valve body into
Row dual-seal, bellows primary seal device, bellows two stage sealing device, bellows three-stage sealing device and airtight and watertight padding
Can be to four resealings be carried out between valve deck and valve rod, sealing effect is good, and it can effectively prevent chlorine leakage, eliminate safe hidden trouble,
Intake channel and exit passageway can be truncated twice simultaneously using large and small flap and valve seat, truncation effect is good, even if having
One flap or valve seat damage can also cut off the conveying of chlorine in time can buffer flap and valve by spring when valve is closed
Impact when seated connection touches reduces wear rate, prolongs the service life.
Claims (1)
1. chlorine forged steel check valve, it is characterised in that: include: forged steel valve body (1), be arranged in the lower end of the forged steel valve body (1)
There are intake channel (2) and exit passageway (3), the upper end of the forged steel valve body (1) is provided with forged steel valve deck (4), in the valve
It is provided with valve rod (5) in body (1), the upper end of the valve rod (5) connects hand wheel component, and the lower end of the valve rod (5) connects flap
Component, is provided with airtight and watertight padding (6) between valve rod (5) and forged steel valve deck (4) and pressing plate (7), the hand wheel component include: anti-
Dirt cap (8), handwheel (9), valve stem nut (10), flange bracket (11) and flat key (12), handwheel (9) pass through flat key (12) and valve rod
Nut (10) connection, dust cap (8) setting are connected above handwheel (9) and by screw thread with valve stem nut (10), Support Method
Blue (11) are axially rotatably assorted with valve stem nut (10), and flange bracket (11) is connected by column (13) with forged steel valve deck (4), institute
Stating flap component includes: small flap (14) and big valve flap (15), and the diameter of small flap (14) is less than big valve flap (15), described big
Spacing sliding chamber (16) are set in flap (15), extends through to be provided in the spacing sliding chamber (16) upper and lower ends and is mutually interconnected with it
Logical slide opening (17), valve rod (5) sliding are threaded through in slide opening (17), and big valve flap (15) are stretched out in the lower end of the valve rod (5)
It is connected with small flap (14), is provided on the valve rod (5) in the spacing sliding chamber (16) and matches with spacing sliding chamber (16) sliding
The position limiting slide block (18) of conjunction is provided with bellows on the outside of slide opening (17) between the big valve flap (15) and small flap (14)
(19), the upper end of the bellows (19) is welded on big valve flap (15), and the lower end of the bellows (19) is welded on small flap
(14) on, platen (20) are provided on the valve rod (5) of the big valve flap (15) upper end, in the big valve flap (15) and platen
(20) it is arranged with spring (21) on the valve rod (5) between, upper end and the platen (20) of the spring (21) offset, the spring
(21) lower end offsets with big valve flap (15), is arranged in the side in the forged steel valve body (1) close to intake channel (2)
Have with the mutually matched small valve seat (22) of small flap (14), small valve seat (22) upper end forged steel valve body (1) in be provided with
With the mutually matched big valve seat (23) of big valve flap (15), on the outside of the valve rod (5) between the platen (20) and forged steel valve deck (4)
It is disposed with bellows primary seal device, bellows two stage sealing device and bellows three-stage sealing device from the bottom up,
The structure of the bellows primary seal device include: the first lower fixed disk (24) being fixed on forged steel valve body (1) and
It is fixed at fixed disk (25) on first on valve rod (5), the fixed disk on first lower fixed disk (25) and first
(25) it is welded with the first bellows (26) between, is provided with first through hole (27) in the middle part of first lower fixed disk (18),
The valve rod (5) is threaded through in the first bellows (26) and first through hole (27), and the aperture of the first through hole (27) is greater than pressure
The maximum gauge of disk (20), the structure of the bellows two stage sealing device include: be fixed on forged steel valve body (1)
Two lower fixed disks (28) and be fixed on valve rod (5) second on fixed disk (29), in second lower fixed disk (28)
And the second bellows (30) are welded between fixed disk (29) on second, it is provided in the middle part of second lower fixed disk (29)
Second through-hole (31), the valve rod (5) are threaded through in the second bellows (30) and the second through-hole (31), second through-hole (31)
Aperture be greater than first on fixed disk (25) diameter, the structure of the bellows three-stage sealing device includes: to be set in valve rod
(5) upper end of the third bellows (32) on, the third bellows (32) is welded on forged steel valve deck (4), the third wave
The lower end of line pipe (32) is welded on valve rod (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810050199.7A CN110056659A (en) | 2018-01-18 | 2018-01-18 | Chlorine forged steel check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810050199.7A CN110056659A (en) | 2018-01-18 | 2018-01-18 | Chlorine forged steel check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110056659A true CN110056659A (en) | 2019-07-26 |
Family
ID=67315735
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810050199.7A Pending CN110056659A (en) | 2018-01-18 | 2018-01-18 | Chlorine forged steel check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110056659A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113638932A (en) * | 2021-07-29 | 2021-11-12 | 中国人民解放军海军工程大学 | Hydraulic control impact load transmitting valve |
| CN114658918A (en) * | 2022-04-06 | 2022-06-24 | 济南新材料产业技术研究院 | Corrugated pipe filling valve structure |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1917698A (en) * | 1928-10-08 | 1933-07-11 | Fulton Sylphon Co | Pressure controlled valve |
| DE3825575A1 (en) * | 1988-07-28 | 1990-02-08 | Schott Glaswerke | Shut-off valve, particularly for dangerous gases or liquids |
| US5971013A (en) * | 1997-02-10 | 1999-10-26 | Aerospatiale Societe National Industrielle | Pneumatic regulating pressure reducing valve |
| CH690625A5 (en) * | 1995-02-03 | 2000-11-15 | Mts Ag Prozesstechnik | Process valve, particularly for sanitary applications. |
| US20110057137A1 (en) * | 2009-09-09 | 2011-03-10 | Baochun Chen | Self-operated pressure transmission type of pressure reducing valve with corrugated pipe |
| RU2012115565A (en) * | 2012-04-18 | 2013-01-20 | Евгений Николаевич Бокач | AXISYMMETRIC BELLOWING VALVE WITH TOP CONNECTOR |
| CN203948666U (en) * | 2014-07-10 | 2014-11-19 | 浙江威腾阀门有限公司 | There is the stop valve of double-level-metal seal bellows |
| CN205824195U (en) * | 2016-06-17 | 2016-12-21 | 嵊州市龙威阀门有限公司 | A kind of Double-clack stop valve |
-
2018
- 2018-01-18 CN CN201810050199.7A patent/CN110056659A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1917698A (en) * | 1928-10-08 | 1933-07-11 | Fulton Sylphon Co | Pressure controlled valve |
| DE3825575A1 (en) * | 1988-07-28 | 1990-02-08 | Schott Glaswerke | Shut-off valve, particularly for dangerous gases or liquids |
| CH690625A5 (en) * | 1995-02-03 | 2000-11-15 | Mts Ag Prozesstechnik | Process valve, particularly for sanitary applications. |
| US5971013A (en) * | 1997-02-10 | 1999-10-26 | Aerospatiale Societe National Industrielle | Pneumatic regulating pressure reducing valve |
| US20110057137A1 (en) * | 2009-09-09 | 2011-03-10 | Baochun Chen | Self-operated pressure transmission type of pressure reducing valve with corrugated pipe |
| RU2012115565A (en) * | 2012-04-18 | 2013-01-20 | Евгений Николаевич Бокач | AXISYMMETRIC BELLOWING VALVE WITH TOP CONNECTOR |
| CN203948666U (en) * | 2014-07-10 | 2014-11-19 | 浙江威腾阀门有限公司 | There is the stop valve of double-level-metal seal bellows |
| CN205824195U (en) * | 2016-06-17 | 2016-12-21 | 嵊州市龙威阀门有限公司 | A kind of Double-clack stop valve |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113638932A (en) * | 2021-07-29 | 2021-11-12 | 中国人民解放军海军工程大学 | Hydraulic control impact load transmitting valve |
| CN114658918A (en) * | 2022-04-06 | 2022-06-24 | 济南新材料产业技术研究院 | Corrugated pipe filling valve structure |
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Application publication date: 20190726 |