CN109185477A - A kind of shockproof anti-sticking regulating valve of harshness operating condition - Google Patents

A kind of shockproof anti-sticking regulating valve of harshness operating condition Download PDF

Info

Publication number
CN109185477A
CN109185477A CN201811285323.4A CN201811285323A CN109185477A CN 109185477 A CN109185477 A CN 109185477A CN 201811285323 A CN201811285323 A CN 201811285323A CN 109185477 A CN109185477 A CN 109185477A
Authority
CN
China
Prior art keywords
valve
valve rod
spool
sheet body
locking piece
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
Application number
CN201811285323.4A
Other languages
Chinese (zh)
Inventor
叶建中
邱晓来
王汉洲
胡高攀
黄硕程
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CHAODA VALVE GROUP Co Ltd
Original Assignee
CHAODA VALVE GROUP Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by CHAODA VALVE GROUP Co Ltd filed Critical CHAODA VALVE GROUP Co Ltd
Priority to CN201811285323.4A priority Critical patent/CN109185477A/en
Publication of CN109185477A publication Critical patent/CN109185477A/en
Pending legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00Lift 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
    • F16K1/32Details
    • F16K1/48Attaching valve members to screw-spindles
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00Lift 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
    • F16K1/32Details
    • F16K1/34Cutting-off parts, e.g. valve members, seats
    • F16K1/36Valve members
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00Lift 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
    • F16K1/32Details
    • F16K1/34Cutting-off parts, e.g. valve members, seats
    • F16K1/46Attachment of sealing rings
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K27/00Construction of housing; Use of materials therefor
    • F16K27/08Guiding yokes for spindles; Means for closing housings; Dust caps, e.g. for tyre valves
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K37/00Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K41/00Spindle sealings
    • F16K41/02Spindle sealings with stuffing-box ; Sealing rings

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Check Valves (AREA)

Abstract

The invention discloses a kind of shockproof anti-sticking regulating valves of harsh operating condition, including valve body and it is fixedly installed in the valve deck of valve body, the valve deck is equipped with the valve rod worn inside inlet valve body, the valve inner is installed with valve seat, one end that the valve rod is located at valve inner is equipped with the spool that cooperation valve seat realizes sealing, locking piece is connected between the spool and valve rod, the locking piece passes through spool and connect with threaded stem, check washer is equipped between the locking piece and spool, the first sealing ring is equipped between the spool and valve rod, position on the locking piece between spool and valve rod is arranged with disc spring and combines, it is located at the position that disc spring group is closed between spool on the locking piece and is arranged with disc spring gasket.The present invention has the following advantages and effects: the present invention can solve it is previous invent the defect that existing valve rod is stuck, high velocity fluid strikes lower valve rod spool loosens and damage formula disassembly or even can not dismantle, actually using will be safer and more reliable and conveniently.

Description

A kind of shockproof anti-sticking regulating valve of harshness operating condition
Technical field
The present invention relates to a kind of valves, the in particular to a kind of shockproof anti-sticking regulating valve of harsh operating condition.
Background technique
Regulating valve also known as control valve, in industrial automation process control field, by receiving regulation unit output Control signal, the final control element for changing rate-of flow, pressure, temperature, the technological parameters such as liquid level is removed by power operation.
Existing regulating valve, due to the applying working condition of the harshness such as High Pressure Difference, multiphase medium, causes in the operating condition of actual use Existing regulating valve all has a common characteristic, it may be assumed that since pressure difference is very big before and after spool, medium composition is complicated, spool institute The impact being subject to is not only very big, but also impact force suffered by spool different parts is also different, cause spool different parts by Power is unbalanced, unstable, so that can cause spool strenuous vibration, ultimately causes that spool local scour is serious, spool junction Occur loosening due to strenuous vibration and even loosens phenomenon.Therefore, in order to solve these problems, many technical staff are by by valve The connection type change of core is designed as the non-removable mode such as locking or be welded, and the result of this kind of mode is exactly to cause to damage The disassembly of bad formula can not even dismantle, and safeguard during use so as to cause valve extremely difficult.Simultaneously as this kind locked Mode is dismantled extremely difficult, easily causes spool, valve rod etc. directly to be scrapped in disassembly process, economic loss is huge, maintenance workers Phase is longer.
Summary of the invention
The object of the present invention is to provide a kind of shockproof anti-sticking regulating valve of harsh operating condition, the shockproof anti-sticking regulating valves of the harshness operating condition It is able to achieve the detachable of spool, damping and anti-loose, consequently facilitating the maintenance in later period.
Above-mentioned technical purpose of the invention has the technical scheme that a kind of harsh operating condition is shockproof anti-sticking Regulating valve including valve body and is fixedly installed in the valve deck of valve body, and the valve deck is equipped with the valve rod worn inside inlet valve body, institute It states valve inner and is installed with valve seat, one end that the valve rod is located at valve inner is equipped with the spool that cooperation valve seat realizes sealing, institute It states and is connected with locking piece between spool and valve rod, the locking piece passes through spool and connect with threaded stem, the locking piece and valve It is equipped with check washer between core, the first sealing ring is equipped between the spool and valve rod, is located at spool and valve on the locking piece Position between bar is arranged with disc spring combination, is located at the position that disc spring group is closed between spool on the locking piece and is arranged with disc spring Gasket.
By using above-mentioned technical proposal, locking piece passes through spool and connect with threaded stem, realizes that spool is on valve rod Fixation, the setting of check washer for preventing locking piece from loosening in long-term use, install disc spring combination when, according to Corresponding elastic pre-stress is arranged in the dimensional weight of spool, when spool is by harshnesses such as fluid high-speed impact, medium temperature variations When operating condition, disc spring draws strenuous vibration wave caused by automatic absorption high speed impact and adjust automatically since medium temperature changes The change in size risen, makes valve rod and spool remain fastening.Moreover, such setting, when valve need replacing spool etc. into When row valve maintenance, if by rotation locking elements can safely, it is lossless being removed and being replaced, thus reach it is detachable, Damping, anti-loose and convenient for later maintenance purpose.
Be further arranged to: the check washer includes the first sheet body and the second sheet body being overlapped mutually, and described first Body and the second sheet body is opposite facing between the two is equipped with the zigzag face radially radiated and be arranged on one side, is located at described The radiation direction in the zigzag face on the first sheet body and the radiation direction in the zigzag face being located on second sheet body are on the contrary, institute The one side for stating the first sheet body towards the second sheet body is equipped with lozenges, and the lozenges is arranged along the arranged radially of the first sheet body, institute The one side for stating the second sheet body towards the first sheet body, which is equipped with, is adapted to lozenges and makes the first sheet body and the second sheet body to be bonded to each other Concave face, the quantity in the zigzag face are greater than the quantity of lozenges.
By using above-mentioned technical proposal, the setting of lozenges is so that the displacement stroke that the first sheet body and the second sheet body occur Only can be between the inner surface of lozenges, and the displacement between lozenges inner surface can be effectively self-locking by locking piece, even if valve Bar and spool are in most violent vibration or when under most powerful dynamic loads, and the anti-loose structure that check washer is dominated is still most It is reliable.And when disassembly is desired, as long as applying the outer active force for rotating counterclockwise locking piece, the friction of lozenges can be overcome Coefficient easily realizes disassembly.
Be further arranged to: the runner including being set to valve inner, the runner include be set to valve rod side into Runner and connection influent stream road and it is located at below valve rod and goes out runner, is installed in the valve body and is sheathed on valve rod and along stem shaft To the support protecting base extended towards spool, fit clearance is formed between the support protecting base and valve rod, the support is protected Positioning shaft sleeve is equipped between guard housing and valve rod.
By using above-mentioned technical proposal, the setting of support protecting base reduces fluid for the directly impact of valve rod and rushes Brush, and impact can form rotational flow around support protecting base in the fluid of support protecting base, the high-velocity fluid of rotational flow is just Well can the inner cavity side wall to valve body cleaned automatically, avoid impurity and molecule etc. from adsorbing and be trapped in valve body and runner In side wall.The material of positioning shaft sleeve is nonmetallic materials, has high abrasion, high heat-conductivity conducting characteristic, and it is fixed to play to valve rod Position is protected and carries out automatic erasing to stem surface when valve rod moves up and down, and prevents valve rod fouling, scratches, certainly may be used To prevent particle from entering between axle sleeve and valve rod, it is finally to promote the movement of valve rod long-term smooth, prevents valve rod stuck.
Be further arranged to: the position that the support protecting base periphery wall is located above positioning shaft sleeve is equipped with connection support and protects The open window of guard housing internal perisporium, the center of circle of the open window around support protecting base are provided at least two, described Open window is not towards influent stream road.
By using above-mentioned technical proposal, the setting of open window prevent high-velocity fluid from directly being impacted to valve rod With wash away, can also make fluid media (medium) enter and leave it is unimpeded, will not be formed between valve rod and support protecting base be detained and deposition, prevent Valve rod is stuck.
It is further arranged to: being installed with bracket above the valve deck, be installed on the bracket along valve rod axial direction The stroke indicator scale of arrangement is installed with the indicateing arm of cooperation stroke indicator scale on the valve rod.
By using above-mentioned technical proposal, indicateing arm cooperates stroke indicator scale, so that staff can be apparent from The shift motion of valve rod.
It is further arranged to: being equipped with airtight and watertight padding between the valve rod and valve deck.
By using above-mentioned technical proposal, the setting of airtight and watertight padding guarantees valve rod and the leakproofness of valve deck between the two.
In conclusion the invention has the following advantages: the present invention can solve it is previous invent existing valve rod it is stuck, High velocity fluid strikes lower valve rod spool loosens and damages the defect that formula disassembly can not even dismantle, and actual use will more be pacified Entirely, reliably and conveniently.
Detailed description of the invention
Fig. 1 is the cross-sectional view of embodiment;
Fig. 2 is the cross-sectional view of spool and valve rod in embodiment;
Fig. 3 is the portion A enlarged drawing in Fig. 2;
Fig. 4 is the cross-sectional view of support protecting base in embodiment;
Fig. 5 is the cross-sectional view in Fig. 4 at A-A.
In figure: 1, valve body;2, runner;2.1, influent stream road;2.2, go out runner;3, valve deck;4, valve rod;5, valve seat;6, spool; 7, locking piece;8, check washer;8.1, the first sheet body;8.2, the second sheet body;9, the first sealing ring;10, disc spring combines;11, dish Spring gasket;12, zigzag face;13, lozenges;14, concave face;15, support protecting base;16, fit clearance;17, positioning shaft sleeve; 18, open window;19, bracket;20, stroke indicator scale;21, indicateing arm;22, airtight and watertight padding.
Specific embodiment
Below in conjunction with attached drawing, invention is further described in detail.
Referring to figs. 1 to Fig. 5, a kind of harshness operating condition shockproof anti-sticking regulating valve, including valve body 1 and it is fixedly installed in valve body 1 The valve deck 3 of top is fixedly installed with bracket 19 positioned at the top of valve deck 3, and bracket 19 is equipped with across valve deck 3 and extends inlet valve body Valve rod 4 inside 1.Offer runner 2 inside valve body 1, runner 2 include positioned at 4 side of valve rod influent stream road 2.1 and be connected into Runner 2.1 and the runner 2.2 out for being located at 4 underface of valve rod, are installed with valve seat 5, valve rod 4 is located in valve body 1 out on 2.2 wall of runner The one end in portion is equipped with the spool 6 that cooperation valve seat 5 realizes sealing.It is equipped in valve body 1 and is pressed fixed tubular support protection by valve deck 3 Seat 15, support protecting base 15 are sheathed on valve rod 4 and extend towards 6 direction of spool, be formed between support protecting base 15 and valve rod 4 Fit clearance 16 and it is installed with positioning shaft sleeve 17 between the two, the material of positioning shaft sleeve 17 is nonmetallic materials.Valve deck 3 and valve rod It is equipped with airtight and watertight padding 22 between 4, is installed with the stroke indicator scale 20 along 4 axial alignment of valve rod on bracket 19, valve rod 4 corresponds to The position of stroke indicator scale 20 is installed with the indicateing arm 21 of cooperation stroke indicator scale 20.
6 bottom of spool is equipped with across spool 6 and the locking piece 7 that is threadedly coupled with valve rod 4, and locking piece 7 includes screw, is locked Check washer 8 is equipped between part 7 and spool 6, check washer 8 includes the first sheet body 8.1 and the second sheet body 8.2 being overlapped mutually, First sheet body 8.1 and the second sheet body 8.2 is opposite facing between the two is equipped with the zigzag face 12 radially radiated on one side, is located at The radiation direction of the radiation direction in the zigzag face 12 on the first sheet body 8.1 and the zigzag face 12 being located on the second sheet body 8.2 On the contrary.The one side of first sheet body 8.1 towards the second sheet body 8.2 is equipped with lozenges 13, radial direction of the lozenges 13 along the first sheet body 8.1 Be arranged, the one side of the second sheet body 8.2 towards the first sheet body 8.1 be equipped be adapted to and makes with lozenges 13 first sheet body 8.1 and The concave face 14 that second sheet body 8.2 is bonded to each other, the quantity in zigzag face 12 are greater than the quantity of lozenges 13.
Position on locking piece 7 between spool 6 and valve rod 4 is arranged with disc spring and combines 10, is located at disc spring on locking piece 7 Position between combination 10 and spool 6 is arranged with disc spring gasket 11, disc spring combination 10 be by least two groups more than disc spring combine It is formed, is equipped between spool 6 and valve rod 4 and is located at the first sealing ring 9 that disc spring combines 10 tops.15 periphery wall position of support protecting base Position above positioning shaft sleeve 17 offers the open window 18 of connection 15 internal perisporium of support protecting base, and open window 18 surrounds The center of circle of support protecting base 15 is provided at least two, the opening of open window 18 is not towards towards influent stream road 2.1.
This specific embodiment is only explanation of the invention, is not limitation of the present invention, those skilled in the art Member can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but as long as at this All by the protection of Patent Law in the scope of the claims of invention.

Claims (6)

1. a kind of harshness operating condition shockproof anti-sticking regulating valve, including valve body (1) and it is fixedly installed in the valve deck (3) of valve body (1), institute It states valve deck (3) and is equipped with the valve rod (4) for wearing inlet valve body (1) inside, the valve body (1) is fixedly provided with valve seat (5), the valve Bar (4) is located at the internal one end of valve body (1) and is equipped with the spool (6) that sealing is realized in cooperation valve seat (5), it is characterised in that: the valve It being connected between core (6) and valve rod (4) locking piece (7), the locking piece (7) passes through spool (6) and is threadedly coupled with valve rod (4), Check washer (8) are equipped between the locking piece (7) and spool (6), it is close that first is equipped between the spool (6) and valve rod (4) Seal (9), the position on the locking piece (7) between spool (6) and valve rod (4) is arranged with disc spring and combines (10), described It is located at the position that disc spring group is closed between (10) and spool (6) on locking piece (7) and is arranged with disc spring gasket (11).
2. a kind of shockproof anti-sticking regulating valve of harsh operating condition according to claim 1, it is characterised in that: the check washer It (8) include the first sheet body (8.1) and the second sheet body (8.2), first sheet body (8.1) and the second sheet body being overlapped mutually (8.2) opposite facing between the two to be equipped with the zigzag face (12) radially radiated and be arranged on one side, it is located at described the The radiation direction in the zigzag face (12) on one sheet body (8.1) and the zigzag face (12) being located on second sheet body (8.2) Radiation direction on the contrary, first sheet body (8.1) towards the second sheet body (8.2) one side be equipped with lozenges (13), the wedge Shape face (13) is arranged along the arranged radially of the first sheet body (8.1), and the one of the second sheet body (8.2) direction the first sheet body (8.1) Face is equipped with the concave face (14) for being adapted to and making the first sheet body (8.1) and the second sheet body (8.2) to be bonded to each other with lozenges (13), institute The quantity for stating zigzag face (12) is greater than the quantity of lozenges (13).
3. a kind of shockproof anti-sticking regulating valve of harsh operating condition according to claim 1, it is characterised in that: including being set to valve body (1) internal runner (2), the runner (2) include the influent stream road (2.1) and connection influent stream road for being set to valve rod (4) side (2.1) go out runner (2.2) and below valve rod (4), be installed in the valve body (1) and be sheathed on valve rod (4) and along valve rod (4) it is axially facing the support protecting base (15) of spool (6) extension, is formed between the support protecting base (15) and valve rod (4) Fit clearance (16) is equipped with positioning shaft sleeve (17) between the support protecting base (15) and valve rod (4).
4. a kind of shockproof anti-sticking regulating valve of harsh operating condition according to claim 3, it is characterised in that: the support protecting base (15) periphery wall is located at the open window that the position above positioning shaft sleeve (17) is equipped with connection support protecting base (15) internal perisporium (18), the center of circle of open window (18) around the support protecting base (15) is provided at least two, the open window (18) not towards influent stream road (2.1).
5. a kind of shockproof anti-sticking regulating valve of harsh operating condition according to claim 1, it is characterised in that: be located at the valve deck (3) it is installed with above bracket (19), the stroke indicator scale along valve rod (4) axial alignment is installed on the bracket (19) (20), the indicateing arm (21) of cooperation stroke indicator scale (20) is installed on the valve rod (4).
6. a kind of harsh shockproof anti-sticking regulating valve of operating condition according to claim 1, it is characterised in that: the valve rod (4) with Airtight and watertight padding (22) are equipped between valve deck (3).
CN201811285323.4A 2018-10-31 2018-10-31 A kind of shockproof anti-sticking regulating valve of harshness operating condition Pending CN109185477A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201811285323.4A CN109185477A (en) 2018-10-31 2018-10-31 A kind of shockproof anti-sticking regulating valve of harshness operating condition

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201811285323.4A CN109185477A (en) 2018-10-31 2018-10-31 A kind of shockproof anti-sticking regulating valve of harshness operating condition

Publications (1)

Publication Number Publication Date
CN109185477A true CN109185477A (en) 2019-01-11

Family

ID=64940929

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201811285323.4A Pending CN109185477A (en) 2018-10-31 2018-10-31 A kind of shockproof anti-sticking regulating valve of harshness operating condition

Country Status (1)

Country Link
CN (1) CN109185477A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109854755A (en) * 2019-02-27 2019-06-07 西安航天远征流体控制股份有限公司 A kind of high temperature break valve

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006046358A (en) * 2004-07-30 2006-02-16 Iwai Kikai Kogyo Co Ltd Valve element structure
CN101220865A (en) * 2007-12-05 2008-07-16 施大钟 Corniform regulating valve
CN201096195Y (en) * 2007-05-16 2008-08-06 无锡市亚迪流体控制技术有限公司 Strong sealing control valve
CN201348051Y (en) * 2008-12-26 2009-11-18 施大钟 Angle valve
CN102345742A (en) * 2010-07-29 2012-02-08 浙江正华阀门厂 Isolating valve sealed by structural ceramic valve clack and metal elastic valve seat
CN103574070A (en) * 2013-09-09 2014-02-12 自贡华西泵阀制造有限公司 Stop valve
CN203477339U (en) * 2013-08-27 2014-03-12 北科阀门制造有限公司 Antibiotic stop valve
CN203717970U (en) * 2013-12-16 2014-07-16 南通市电站阀门有限公司 Valve sealing compensation structure
CN108087552A (en) * 2017-12-21 2018-05-29 苏州锐德飞自动化设备有限公司 A kind of check washer
CN209054105U (en) * 2018-10-31 2019-07-02 超达阀门集团股份有限公司 A kind of shockproof anti-sticking regulating valve of harshness operating condition

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006046358A (en) * 2004-07-30 2006-02-16 Iwai Kikai Kogyo Co Ltd Valve element structure
CN201096195Y (en) * 2007-05-16 2008-08-06 无锡市亚迪流体控制技术有限公司 Strong sealing control valve
CN101220865A (en) * 2007-12-05 2008-07-16 施大钟 Corniform regulating valve
CN201348051Y (en) * 2008-12-26 2009-11-18 施大钟 Angle valve
CN102345742A (en) * 2010-07-29 2012-02-08 浙江正华阀门厂 Isolating valve sealed by structural ceramic valve clack and metal elastic valve seat
CN203477339U (en) * 2013-08-27 2014-03-12 北科阀门制造有限公司 Antibiotic stop valve
CN103574070A (en) * 2013-09-09 2014-02-12 自贡华西泵阀制造有限公司 Stop valve
CN203717970U (en) * 2013-12-16 2014-07-16 南通市电站阀门有限公司 Valve sealing compensation structure
CN108087552A (en) * 2017-12-21 2018-05-29 苏州锐德飞自动化设备有限公司 A kind of check washer
CN209054105U (en) * 2018-10-31 2019-07-02 超达阀门集团股份有限公司 A kind of shockproof anti-sticking regulating valve of harshness operating condition

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109854755A (en) * 2019-02-27 2019-06-07 西安航天远征流体控制股份有限公司 A kind of high temperature break valve

Similar Documents

Publication Publication Date Title
CN209054105U (en) A kind of shockproof anti-sticking regulating valve of harshness operating condition
CN101220865B (en) Corniform regulating valve
CN106122108B (en) A kind of mechanical face seals of centrifugal pumps flusher
CN109185477A (en) A kind of shockproof anti-sticking regulating valve of harshness operating condition
CN203322379U (en) Three-way fixed four-valve-seat hard-seal ball valve
CN109826974B (en) V-shaped ball valve
CN107013691A (en) Becoming can controlling valve
CN205064896U (en) Wear -resisting ball valve of special blowback U -shaped water conservancy diversion of buggy
CN208473870U (en) A kind of cutter head of shield machine washes away spout anti-block apparatus
CN106917878A (en) Eccentric rotary valve
CN216112403U (en) Low-temperature stop valve with non-return function
CN201753766U (en) Pressurized water backwashing type shaft sealing device
CN204061996U (en) A kind of Heisui River angle valve
CN213685354U (en) High platform V-shaped ball valve
CN208919375U (en) A kind of regulating valve suitable for high temperature and high pressure condition
CN201786812U (en) Deflectable displacement sensing device
CN216789262U (en) High-temperature-resistant hard-touch butterfly valve
CN218883094U (en) Corrosion-resistant and wear-resistant ceramic safety valve
CN220470650U (en) Butterfly valve with good stability
CN217559043U (en) Anti-loosening butt-clamping type half-lining tetrafluoro turbine butterfly valve
CN217492704U (en) Low-temperature-rise high-speed main shaft sealing structure
CN213451724U (en) Anti-corrosion stop valve
CN214699207U (en) Split angle type metal hard sealing stop valve
CN220396496U (en) Silt-proof butterfly valve
CN209569347U (en) A kind of anti-sticking butterfly valve

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination