CN103912695B - Corrugated pipe instrument five valve group - Google Patents
Corrugated pipe instrument five valve group Download PDFInfo
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- CN103912695B CN103912695B CN201310602372.7A CN201310602372A CN103912695B CN 103912695 B CN103912695 B CN 103912695B CN 201310602372 A CN201310602372 A CN 201310602372A CN 103912695 B CN103912695 B CN 103912695B
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- rod
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- 239000002184 metal Substances 0.000 claims abstract description 29
- 229910052751 metal Inorganic materials 0.000 claims abstract description 29
- 238000007789 sealing Methods 0.000 claims abstract description 27
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 20
- 239000010959 steel Substances 0.000 claims abstract description 20
- 238000012856 packing Methods 0.000 claims description 15
- 239000000945 filler Substances 0.000 claims description 14
- 230000010354 integration Effects 0.000 claims description 6
- 208000031481 Pathologic Constriction Diseases 0.000 claims description 5
- 210000001215 vagina Anatomy 0.000 claims description 5
- 230000006835 compression Effects 0.000 abstract description 2
- 238000007906 compression Methods 0.000 abstract description 2
- 239000007787 solid Substances 0.000 abstract 1
- 238000003780 insertion Methods 0.000 description 7
- 230000037431 insertion Effects 0.000 description 7
- 230000001105 regulatory effect Effects 0.000 description 4
- 230000006378 damage Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- -1 Packing seat Substances 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 210000004907 gland Anatomy 0.000 description 1
- 210000004247 hand Anatomy 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 230000007096 poisonous effect Effects 0.000 description 1
- 210000000664 rectum Anatomy 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
- 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
- F16K11/22—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 with an actuating member for each valve, e.g. interconnected to form multiple-way valves
-
- 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
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
- F16K27/0254—Construction of housing; Use of materials therefor of lift valves with conical shaped valve members
-
- 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
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
- F16K27/0263—Construction of housing; Use of materials therefor of lift valves multiple way valves
-
- 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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
- F16K31/50—Mechanical actuating means with screw-spindle or internally threaded actuating means
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Multiple-Way Valves (AREA)
- Taps Or Cocks (AREA)
Abstract
A corrugated pipe instrument five valve group is composed of a valve body, a valve core, a lower valve rod, a metal gasket, a metal corrugated pipe, a valve seat, a valve cover, padding, a padding gasket, steel balls, an upper valve rod, a sealing gasket, a padding ring, a sealing pressure pad, compression nuts and the like, wherein the valve body is a carrier which is formed by integrating five valves which are manufactured through a rectangular solid, two internal thread valve cavities are respectively formed in two ends of the valve body, three internal thread valve cavities are respectively arrange in the middle of one side of the valve body in linear mode, and channels can be arbitrarily switched through switches among all the valves. According to the corrugated pipe instrument five valve group, the valve core, the lower valve rod and a flange are directly welded with the metal corrugated pipe and placed among the valve body, the valve seat and the valve cover, the upper valve rod is connected with the lower valve rod through the steel balls in adjustable mode, a multiple security structure of metal corrugated pipe screen open sealing, lower valve rod padding sealing and upper valve rod repetition padding sealing is achieved, and the corrugated pipe instrument five valve group is a high temperature and high pressure corrugated pipe valve group which is high in reliable sealing performance and high in safety performance.
Description
Technical field
The present invention relates to the design of valve and manufacture, be widely used in all kinds of flows of industrial automation control system, differential pressure,
The keying of the liquid in the instrumentation pipelines such as pressure or gas and control device.
Background technology
At present, present instrument five valve group is all to realize sealing by filler, due to there is motion between filler and valve rod,
Produce inevitable friction and wear factor, thus there is the probability of leakage in structure, and some media（As：High
Temperature, high pressure, poisonous, inflammable, explosive, have radioactivity etc. that safety, environment and biological health are worked the mischief）It is outside being not allow for
Leakage.The current bellows stop valve structure of China is single, can be only applied to the working condition of low pressure, low temperature and security medium
Under, and service life is short, is not suitable for high temperature, high pressure and occasion dangerous or that environment, life are likely to result in injury.
Content of the invention
It is an object of the invention to provide a kind of bellows instrument five valve opening sealing with the pressurized screen of metal bellowss periphery
Group, valve element is directly placed between valve body, valve seat and valve gap with wavy metal sealing of tube together with lower valve rod and flange, upper valve rod with
Lower valve rod adopts the active connection of steel ball, and the wavy metal tube panel carrying out valve group opens sealing, lower valve rod packing seal and upper valve rod again
Gland sealed multiple security structure, is a kind of High Temperature High Pressure bellows valve with highly reliable sealing and high safety performance
Group.
The technical scheme is that：
1st, a kind of bellows instrument five valve group, by valve body, valve element, lower valve rod, metal washer, metal bellowss, valve seat, valve
Lid, filler, Packing seat, steel ball, upper valve rod, sealing gasket, insertion ring, sealed pressure pad, clamp nut etc. composition it is characterised in that：
Valve body is the carrier of 5 valve integrations being processed into by a cuboid, and wherein female thread valve pocket B1 and B5 is respectively in valve body
Two ends, female thread valve pocket B2, B3, B4 difference linear array is in the centre position of valve body side；Female thread valve pocket bottom hole C1 divides
Do not communicate with female thread valve pocket bottom hole C2 and C3 and entrance F1, female thread valve pocket B1 and female thread valve pocket base apertures E1 phase
Logical, female thread valve pocket B2 communicates with exporting D1, female thread valve pocket bottom hole C5 respectively with female thread valve pocket base apertures E2 and interior spiral shell
Stricture of vagina valve pocket bottom hole C4 and entrance F2 communicates, and female thread valve pocket B5 is communicated with female thread valve pocket base apertures E3 and outlet H2, interior
Screw thread valve pocket B4 is communicated with outlet D2；Middle part both sides have 2 symmetrical installing hole G respectively.
2nd, metal bellowss are made to the equal thin metallic tubd of multilamellar wall thickness by one layer, according to valve pressure and temperature
Height determines the different numbers of plies and wall thickness respectively, its length, the pitch of waves, wave number and inner and outer diameter according to the flow of valve, latus rectum, open
Close the technical parameters such as stroke to design；One end of lower valve rod is coordinated with valve element, and the other end is hole, and the bottom in hole is plane, its
Uniform multiple apertures on the relevant position of circumference, the lower end surface of upper valve rod is circular arc, and excircle has arc-shaped groove；Gold
Belong to bellows-sheathed on lower valve rod, one end is welded with lower valve rod with lower valve rod bottom, the other end and flange welding sealing, valve element,
Upper valve rod is inserted the in the hole of lower valve rod, so that circular arc end face is contacted with the base plane in hole, in each aperture, load identical rule
The steel ball of lattice, simultaneously steel ball be placed in the arc-shaped groove of upper valve rod bottom, make upper valve rod and lower valve rod pass through steel ball actively
Couple together；It is placed in valve seat, flange after having packing ring and valve gap tight fit up and down respectively locks lower locknut, in valve gap
Equipped with filler and Packing seat, screwing regulating part makes it promote Packing seat that filler is pressed between lower valve rod and valve gap, locking
Mother screws locking, forms packing seal；Load sealing gasket, insertion ring, sealing clamping ring on regulating part top, adjust and screw compression spiral shell
Mother, forms insertion ring and seals；Load onto handle or handwheel, form valve group upper element.
3rd, the valve seat of upper element is loaded onto metal washer to screw in 5 female thread valve pocket B1～5 of valve body respectively and fasten,
Seal between the female thread valve pocket B oral area of valve seat, metal washer and valve body；Rotary handle or handwheel, upper valve rod spiral lifting,
In the presence of the active attachment structure of steel ball, so that lower valve rod and valve element is not rotated and move along a straight line up and down, execute open and close.
4th, each architectonical of 5 valves integration, opens female thread valve pocket B1 upper valve, simultaneously closes off female thread valve pocket B2
During with female thread valve pocket B3 upper valve, entrance F1 is communicated with outlet H1, then opens female thread valve pocket B2 and communicate with outlet D1；
Open female thread valve pocket B5 upper valve, when simultaneously closing off female thread valve pocket B4 upper valve, entrance F2 is communicated with outlet H2, then
Open female thread valve pocket B4 to communicate with outlet D2 again；When opening female thread valve pocket B3 upper valve, complete with each 2 valves of both sides
Portion connects；So being turned on and off can any switching laws passage each other.
Advantages of the present invention and beneficial effect are：
1st, the present invention adopts the pressurized metal screen of metal bellowss periphery to open sealing and metal washer hard sealing structure, high temperature resistant
High pressure sealing performance is excellent, reliable, has high temperature high voltage resistant filler secondary seal to protect again, achieves double in terms of preventing external leakage
Sealing, dual fail-safe, are particularly well-suited to high temperature, high pressure and the medium and the occasion that have harm to aspects such as health, safety, environment.
2nd, because metal bellowss and lower packing seal all concentrate in lower valve rod one, filling out at present by valve rod for operation valve
Do not rotate up and down motion, the greatly friction between the filler of minimizing and lower valve rod in material and metal bellowss, substantially increase
The service life of valve and operating characteristics.
3rd, adopt the active attachment structure of steel ball between upper and lower valve rod, spin friction active force is preferably minimized, makes valve
Operation is free and relaxed.
4th, due to upper insertion ring sealing function so as to and external environment, be not subject to external environment influence.
5th, prevent valve group being turned on and off loosening, be suitably applied in the occasion of vibrations.
Brief description
Fig. 1 is three-valve group of corrugated pipe instrument section of structure；
Fig. 2 is that the right side of Fig. 1 regards sectional structure chart.
In figure：1st, valve body 2, valve element 3, lower valve rod 4, metal washer 5, metal bellowss 6, valve seat 7, lower locknut
8th, valve gap 9, packing ring 10, flange 11, packing ring 12, Packing seat 13, filler 14, steel ball 15, regulating part 16, upper locknut
17th, sealing gasket 18, insertion ring 19, sealing clamping ring 20, clamp nut 21, upper valve rod 22, handle or handwheel 23, interior hexagonal
Screw B1～5, female thread valve pocket C1～5, female thread valve pocket bottom hole D1～2, outlet E1～3, female thread valve pocket bottom
Hole F1～2, entrance H1～2, outlet G, installing hole.
Specific embodiment
The present invention is further described with reference to the accompanying drawings and examples.
1st, a kind of bellows instrument five valve group, by valve body (1), valve element（2）, lower valve rod（3）, metal washer（4）, metal wave
Stricture of vagina pipe（5）, valve seat（6）, valve gap（8）, filler（13）, Packing seat（12）, steel ball！4）, upper valve rod（21）, sealing gasket（17）, fill out
Feed ring（18）, sealed pressure pad（19）, clamp nut（20）Deng composition it is characterised in that：Valve body（1）It is by a cuboid processing system
The carrier of the 5 valve integrations becoming, wherein female thread valve pocket（B1）With（B5）Respectively in valve body（1）Two ends, female thread valve pocket
（B2）、（B3）、（B4）Linear array is in valve body respectively（1）The centre position of side；Female thread valve pocket bottom hole（C1）Respectively with
Female thread valve pocket bottom hole（C2）With（C3）And entrance（F1）Communicate, female thread valve pocket（B1）With female thread valve pocket base apertures
（E1）Communicate, female thread valve pocket（B2）With outlet（D1）Communicate, female thread valve pocket bottom hole（C5）Respectively with female thread valve pocket bottom
Portion hole（E2）With female thread valve pocket bottom hole（C4）And entrance（F2）Communicate, female thread valve pocket（B5）With female thread valve pocket bottom
Hole（E3）And outlet（H2）Communicate, female thread valve pocket（B4）With outlet（D2）Communicate；Middle part both sides have 2 symmetrical installations respectively
Hole（G）.
2nd, metal bellowss（5）Made to the equal thin metallic tubd of multilamellar wall thickness by one layer, according to valve pressure and temperature
The height of degree determines the different numbers of plies and wall thickness respectively, and its length, the pitch of waves, wave number and inner and outer diameter are according to the flow, logical of valve
The technical parameters such as footpath, switch over travel design；Lower valve rod（3）One end and valve element（2）Cooperation, the other end is hole, the bottom in hole
Portion is plane, uniform multiple apertures on the relevant position of its circumference, upper valve rod（21）Lower end surface be circular arc, on excircle
There is arc-shaped groove；Metal bellowss（5）It is enclosed within lower valve rod（3）On, one end and lower valve rod（3）Bottom, the other end and flange
（10）Welded seal, valve element（2）With lower valve rod（3）Welding, by upper valve rod（21）Insertion lower valve rod（3）In the hole, make arc end
Face is contacted with the base plane in hole, loads the steel ball of same size in each aperture（14）, steel ball simultaneously（14）It is placed in upper valve
Bar（21）In the arc-shaped groove of bottom, make upper valve rod（21）And lower valve rod（3）By steel ball（14）Couple together actively；Will
It is placed in valve seat（6）Interior, flange（10）There is packing ring up and down respectively（9）（11）With valve gap（8）Lower locknut after tight fit（7）Lock
Fixed, valve gap（8）Built with filler（13）And Packing seat（12）, screw regulating part（15）It is made to promote Packing seat（12）Filler
（13）It is pressed on lower valve rod（3）With valve gap（8）Between, upper locknut（16）Screw locking, form filler（13）Sealing；Adjusting
Part（15）Top loads sealing gasket（17）, insertion ring（18）, sealing clamping ring（19）, adjust and screw clamp nut（20）, formation fills out
Feed ring（18）Seal again；Load onto handle or handwheel（22）, form valve group upper element.
3rd, the valve seat of upper element（6）Load onto metal washer（4）Screw in valve body respectively（1）5 female thread valve pocket B1
～5 and fasten, valve seat（6）, metal washer（4）With valve body（1）Female thread valve pocket B oral area between seal；Rotary handle or handss
Wheel（22）, upper valve rod（21）Spiral lifting, in steel ball（14）In the presence of active attachment structure, make lower valve rod（3）And valve element（2）
Do not rotate and move along a straight line up and down, execute open and close.
4th, each architectonical of 5 valves integration, opens female thread valve pocket（B1）Upper valve, simultaneously closes off female thread valve pocket
（B2）With female thread valve pocket（B3）During upper valve, entrance（F1）With outlet（H1）Communicate, then open female thread valve pocket（B2）Again
With outlet（D1）Communicate；Open female thread valve pocket（B5）Upper valve, simultaneously closes off female thread valve pocket（B4）During upper valve, enter
Mouthful（F2）With outlet（H2）Communicate, then open female thread valve pocket（B4）Again with outlet（D2）Communicate；Open female thread valve pocket（B3）
During upper valve, all connect with each 2 valves of both sides；So being turned on and off can any switching laws passage each other.
Claims (2)
1. a kind of bellows instrument five valve group, including valve body (1), valve element (2), lower valve rod (3), metal washer (4), wavy metal
Pipe (5), valve seat (6), valve gap (8), filler (13), Packing seat (12), steel ball (14), upper valve rod (21), sealing gasket (17), filler
Circle (18), sealed pressure pad (19), clamp nut (20) it is characterised in that：Valve body (1) is 5 being processed into by a cuboid
The carrier of valve integration, respectively at valve body (1) two ends, female thread valve pocket B2, B3, B4 are respectively for wherein female thread valve pocket B1 and B5
Linear array is in the centre position of valve body (1) side；Female thread valve pocket bottom hole C1 respectively with female thread valve pocket bottom hole C2 and
Female thread valve pocket bottom hole C3 and entrance F1 communicates, and female thread valve pocket B1 is communicated with female thread valve pocket base apertures E1, female thread
Valve pocket B2 with outlet D1 communicate, female thread valve pocket bottom hole C5 respectively with female thread valve pocket base apertures E2 and female thread valve pocket bottom
Hole C4 and entrance F2 communicates, and female thread valve pocket B5 is communicated with female thread valve pocket base apertures E3 and outlet H2, female thread valve pocket B4
Communicate with outlet D2；In the middle part of valve body (1), both sides have 2 symmetrical installing holes (G) respectively；
The each architectonical of 5 valves integration, opens female thread valve pocket B1 upper valve, simultaneously closes off female thread valve pocket B2 and interior spiral shell
During stricture of vagina valve pocket B3 upper valve, entrance F1 is communicated with outlet H1, then when opening female thread valve pocket B2 upper valve, and with outlet D1
Communicate；Open female thread valve pocket B5 upper valve, when simultaneously closing off female thread valve pocket B4 upper valve, entrance F2 and outlet H2 phase
Logical, then when opening female thread valve pocket B4 upper valve, and communicate with outlet D2；When opening female thread valve pocket B3 upper valve, with
Each 2 valves of both sides all connect；
One end of described lower valve rod (3) is coordinated with valve element (2), and the other end is hole, and described upper valve rod (21) inserts lower valve rod (3)
In the hole, the bottom in hole is plane, uniform multiple apertures on the relevant position of its circumference, loads same size in each aperture
Steel ball (14), simultaneously steel ball (14) be placed in the arc-shaped groove of upper valve rod (21) bottom, make upper valve rod (21) and lower valve rod (3)
By steel ball (14) active couple together.
2. according to bellows instrument five valve group a kind of described in claim 1 it is characterised in that：Valve seat (6) dress upper element
Upper metal washer (4) screws in 5 female thread valve pocket B1 of valve body (1), female thread valve pocket B2, female thread valve pocket B3, interior spiral shell respectively
Stricture of vagina valve pocket B4 and female thread valve pocket B5 simultaneously fastens, the female thread valve pocket B1 of valve seat (6), metal washer (4) and valve body (1), interior spiral shell
Seal between stricture of vagina valve pocket B2, female thread valve pocket B3, female thread valve pocket B4 and female thread valve pocket B5 oral area；Rotary handle or handwheel
(22), upper valve rod (21) spiral lifting, in the presence of the active attachment structure of steel ball (14), makes lower valve rod (3) and valve element (2) no
Rotation moves along a straight line up and down, executes open and close.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310602372.7A CN103912695B (en) | 2013-11-25 | 2013-11-25 | Corrugated pipe instrument five valve group |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310602372.7A CN103912695B (en) | 2013-11-25 | 2013-11-25 | Corrugated pipe instrument five valve group |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103912695A CN103912695A (en) | 2014-07-09 |
| CN103912695B true CN103912695B (en) | 2017-02-15 |
Family
ID=51038589
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310602372.7A Active CN103912695B (en) | 2013-11-25 | 2013-11-25 | Corrugated pipe instrument five valve group |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103912695B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109442066B (en) * | 2018-12-30 | 2024-03-19 | 徐州阿卡控制阀门有限公司 | Combined multi-channel control valve |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86104560A (en) * | 1986-07-07 | 1988-01-27 | 浙江省嵊县温控设备厂 | Four-way check valve |
| CN101334116A (en) * | 2008-07-11 | 2008-12-31 | 江苏星河集团有限公司 | Stop valve of bellows instrument |
| CN101603606A (en) * | 2008-06-13 | 2009-12-16 | 张锦 | Multifunctional five-group valve |
| CN202326483U (en) * | 2011-11-11 | 2012-07-11 | 浙江工贸职业技术学院 | Balanced valve group |
| CN103244691A (en) * | 2013-05-17 | 2013-08-14 | 江苏星河阀门有限公司 | Internal pressure type bellows stop valve with switch display positions |
| CN203560517U (en) * | 2013-11-25 | 2014-04-23 | 江苏星河阀门有限公司 | Corrugated pipe instrument five-valve set |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7225832B2 (en) * | 2004-09-01 | 2007-06-05 | Phoenix Precision | Five valve manifold with angle bonnet details |
| CN101363556A (en) * | 2008-10-13 | 2009-02-11 | 江苏星河集团有限公司 | Instrument block valve of double sealing structure with lower valve spindle not rotating |
| CN103244696A (en) * | 2013-05-17 | 2013-08-14 | 江苏星河阀门有限公司 | External-pressure type bellows globe valve with non-rotating valve rod |
-
2013
- 2013-11-25 CN CN201310602372.7A patent/CN103912695B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86104560A (en) * | 1986-07-07 | 1988-01-27 | 浙江省嵊县温控设备厂 | Four-way check valve |
| CN101603606A (en) * | 2008-06-13 | 2009-12-16 | 张锦 | Multifunctional five-group valve |
| CN101334116A (en) * | 2008-07-11 | 2008-12-31 | 江苏星河集团有限公司 | Stop valve of bellows instrument |
| CN202326483U (en) * | 2011-11-11 | 2012-07-11 | 浙江工贸职业技术学院 | Balanced valve group |
| CN103244691A (en) * | 2013-05-17 | 2013-08-14 | 江苏星河阀门有限公司 | Internal pressure type bellows stop valve with switch display positions |
| CN203560517U (en) * | 2013-11-25 | 2014-04-23 | 江苏星河阀门有限公司 | Corrugated pipe instrument five-valve set |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103912695A (en) | 2014-07-09 |
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