CN215172326U - Silt-proof butterfly valve - Google Patents

Silt-proof butterfly valve Download PDF

Info

Publication number
CN215172326U
CN215172326U CN202121651608.2U CN202121651608U CN215172326U CN 215172326 U CN215172326 U CN 215172326U CN 202121651608 U CN202121651608 U CN 202121651608U CN 215172326 U CN215172326 U CN 215172326U
Authority
CN
China
Prior art keywords
valve body
valve
butterfly
sealing
hole
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.)
Active
Application number
CN202121651608.2U
Other languages
Chinese (zh)
Inventor
韩秦飞
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.)
Derris Valve Technology Co ltd
Original Assignee
Derris Valve Technology 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 Derris Valve Technology Co ltd filed Critical Derris Valve Technology Co ltd
Priority to CN202121651608.2U priority Critical patent/CN215172326U/en
Application granted granted Critical
Publication of CN215172326U publication Critical patent/CN215172326U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Lift Valve (AREA)
  • Details Of Valves (AREA)

Abstract

The utility model relates to a butterfly valve field especially relates to a prevent silt type butterfly valve. The to-be-solved technical problem of the utility model is to provide a can carry out the separation to materials such as silt in the advection, avoided the inside problem that takes place to block up of butterfly valve, reduced maintenance personal's work load, also guaranteed the permeability of butterfly valve simultaneously, thereby the friction of sealing member and valve body when reducing to open and close has improved butterfly valve life's silt-proof type butterfly valve. A silt-proof butterfly valve comprises a valve body, a support frame, a turbine rotator, a hand wheel, an upper shaft sleeve, a lower shaft sleeve, a valve rod, a pin, a butterfly plate, a sealing washer, a pressing ring, a sealing mechanism, a filler, a filter plate and a gauze filter layer. The utility model discloses reached and carried out the separation to materials such as silt in the convection cell, avoided the inside problem that takes place to block up of butterfly valve, reduced maintenance personal's work load, also guaranteed the permeability of butterfly valve simultaneously, thereby the friction of sealing member and valve body when reducing to open and close has improved butterfly valve life's effect.

Description

Silt-proof butterfly valve
Technical Field
The utility model relates to a butterfly valve field especially relates to a prevent silt type butterfly valve.
Background
The groove butterfly valve is driven by a worm wheel and a worm, the cam rotates along with the groove butterfly valve to press down or release a contact on the signal device according to a preset position, and correspondingly outputs an on-off electric signal to display the opening and closing state of the butterfly valve. The groove butterfly valve is divided into a handle groove butterfly valve and a turbine groove butterfly valve. The groove butterfly valve is designed by adopting the advanced technology abroad and the company for multiple improvements. The valve body is formed by welding thick-wall seamless pipes, the valve plate is made of nodular cast iron, the valve plate is reliable in quality, firmer and more durable than cast iron, more attractive in appearance and more excellent in price, and the valve plate has the rapidness required by connection with a pipe fitting. Can be widely applied to pipelines of water supply and drainage, fire fighting, petroleum, chemical engineering, medicine, steel and the like for cutting off or adjusting.
However, most existing butterfly valves are in the use process, flow is controlled through the valve plate, materials such as silt can exist in the fluid, so silt is easily accumulated at the valve plate position, thereby the rotation of the valve plate is blocked, the butterfly valve is easily blocked after long-term use, the permeability of the butterfly valve can be influenced, the butterfly valve cannot be opened and closed, and the service life of the butterfly valve can be prolonged, therefore, the problem that the materials such as silt in the fluid can be separated is urgently needed to be researched and developed, the problem that the butterfly valve is blocked inside is avoided, the workload of maintenance personnel is reduced, the permeability of the butterfly valve is also ensured at the same time, and the friction between a sealing element and a valve body when the butterfly valve is opened and closed is reduced, so that the service life of the butterfly valve is prolonged.
SUMMERY OF THE UTILITY MODEL
The utility model discloses an overcome the in-process that most current butterfly valves were using, control flow through the valve plate, because can have materials such as silt in the fluid, so pile up silt easily in the valve plate position to make the rotation of valve plate obstructed, make the butterfly valve take place the shortcoming of jam easily after long-term the use, the to-be-solved technical problem provide one kind can carry out the separation to materials such as silt in the fluid, avoided the inside problem that takes place to block up of butterfly valve, reduced maintenance personal's work load, also guaranteed the permeability of butterfly valve simultaneously, thereby the friction of sealing member and valve body when reducing to open and close has improved butterfly valve life's silt-proof type butterfly valve.
The utility model is achieved by the following concrete technical means:
a silt-proof butterfly valve comprises a valve body, a support frame, a turbine rotator, a hand wheel, an upper shaft sleeve, a lower shaft sleeve, a valve rod, a pin, a butterfly plate, a sealing washer, a pressing ring, a sealing mechanism, a filler gland, a bottom cover, a sealing washer, a sealing blocking ring, a filter plate and a gauze filter layer; the left end and the right end of the valve body are provided with grooves connected with a pipeline, the center of the valve body is provided with a water through hole, the upper end and the lower end of the valve body are provided with bosses, and the center of the boss is provided with a shaft hole communicated with the water through hole; the support frame is positioned at the upper end of the valve body and is fixedly connected with a boss arranged at the upper end of the valve body through a bolt; the turbine rotator is fixedly arranged at the upper end of the support frame through a bolt; the hand wheel is fixedly arranged on an input rotating shaft of the turbine rotator through a bolt; the upper shaft sleeve is fixedly arranged in a shaft hole arranged on a boss at the upper end of the valve body; the lower shaft sleeve is fixedly arranged in a shaft hole arranged on a boss at the lower end of the valve body; the valve rod is positioned in the water through hole arranged on the valve body, the upper end and the lower end of the valve rod are arranged in shaft holes arranged on the upper boss and the lower boss of the valve body and are rotatably connected with the valve body through an upper shaft sleeve and a lower shaft sleeve, and the upper end of the valve rod extends into the turbine rotator and is connected with an output rotating shaft of the turbine rotator; the butterfly plate is positioned in a water through hole arranged on the valve body and is fixedly arranged on the valve rod through a pin; the pressing ring is positioned on one side of the butterfly plate and is fixedly arranged on the butterfly plate through a bolt, and a sealing gasket is fixedly arranged between the butterfly plate and the pressing ring; the sealing mechanism is positioned on one side of the pressing ring and is fixedly arranged in a through hole arranged in the valve body through a bolt; the filler is arranged in the shaft holes of the bosses at the upper end and the lower end of the valve body; the packing gland is positioned above the valve body and is fixedly connected with the valve body through a bolt, the lower end of the packing gland extends into a shaft hole arranged on a boss at the upper end of the valve body, and packing arranged in the shaft hole is extruded; the bottom cover is positioned at the lower end of the valve body and is fixedly connected with the valve body through a bolt, the upper end of the bottom cover extends into a shaft hole arranged on a boss at the lower end of the valve body, and the filler arranged in the shaft hole is extruded; grooves are also formed in the upper end and the lower end of the valve rod, and the sealing rings are arranged in the grooves formed in the upper end and the lower end of the valve rod; the sealing plug ring is positioned in the water through hole arranged on the valve body and is fixedly arranged at the junction of the shaft hole arranged on the valve body boss and the surface of the water through hole; the filter plate is positioned in the water through hole of the valve body and is fixedly arranged on one side of the butterfly plate; one side of the filter plate, which is far away from the butterfly plate, is fixedly provided with a gauze filter layer.
Further, the sealing mechanism comprises a movable sealing ring, a fixed ring, a spring and an end face sealing ring; the movable sealing ring is positioned in the water through hole of the valve body and can be slidably arranged on one side of the pressing ring; the fixed ring is positioned on one side of the movable sealing ring and is fixedly connected with the valve body through a bolt; the spring is arranged between the movable sealing ring and the fixed sealing ring; the end face sealing ring is arranged on a step arranged on the water through hole.
Furthermore, a deposition groove is arranged in the water through hole of the valve body, the deposition groove is positioned at one side, away from the butterfly plate, of the lower end of the filter plate, a sand discharge port is formed in the lower end of the dust deposition groove, and a sealing plug is fixedly installed at the sand discharge port.
Furthermore, the filter plate is arranged obliquely, the distance between the upper end of the filter plate and the butterfly plate is greater than the distance between the lower end of the filter plate and the butterfly plate, and the filter plate is provided with a plurality of water through holes.
Furthermore, the contact surface of the pressing ring and the movable sealing ring is a sealing surface, and the sealing surface is an arc surface.
Furthermore, wear-resistant metal layers are arranged on the surfaces of the butterfly plate, the pressing ring, the sealing mechanism and the water through hole.
Compared with the prior art, the utility model discloses following beneficial effect has:
the utility model discloses reached and carried out the separation to materials such as silt in the convection cell, avoided the inside problem that takes place to block up of butterfly valve, reduced maintenance personal's work load, also guaranteed the permeability of butterfly valve simultaneously, thereby the friction of sealing member and valve body when reducing to open and close has improved butterfly valve life's effect.
Drawings
Fig. 1 is a schematic perspective view of the present invention.
Fig. 2 is a schematic view of the structure of the present invention.
Fig. 3 is a schematic side view of the present invention.
Fig. 4 is a schematic sectional view of the present invention.
Fig. 5 is a schematic view of a partial structure of the present invention.
The labels in the figures are: 1-a valve body, 2-a support frame, 3-a turbine rotator, 4-a hand wheel, 5-an upper shaft sleeve, 6-a lower shaft sleeve, 7-a valve rod, 8-a pin, 9-a butterfly plate, 10-a sealing gasket, 11-a pressing ring, 12-a sealing mechanism, 13-a filler, 14-a filler gland, 15-a bottom cover, 16-a sealing ring, 17-a sealing blocking ring, 18-a filter plate, 19-a gauze filter layer and 20-a sealing plug.
Detailed Description
The invention is further described below with reference to the accompanying drawings:
examples
A kind of sand-proof butterfly valve, as shown in fig. 1-5, including valve block 1, support frame 2, turbine spinner 3, hand wheel 4, upper shaft sleeve 5, lower shaft sleeve 6, valve stem 7, pin 8, butterfly plate 9, seal ring 10, clamping ring 11, sealing mechanism 12, packing 13, packing gland 14, bottom cover 15, seal ring 16, seal and block up the ring 17, filter plate 18 and gauze filter layer 19; the left end and the right end of the valve body 1 are provided with grooves connected with a pipeline, the center of the valve body 1 is provided with a water through hole, the upper end and the lower end of the valve body are provided with bosses, and the center of each boss is provided with a shaft hole communicated with the water through hole; the support frame 2 is positioned at the upper end of the valve body 1 and is fixedly connected with a boss arranged at the upper end of the valve body 1 through a bolt; the turbine rotator 3 is fixedly arranged at the upper end of the support frame 2 through bolts; the hand wheel 4 is fixedly arranged on an input rotating shaft of the turbine rotator 3 through a bolt; the upper shaft sleeve 5 is fixedly arranged in a shaft hole arranged on a boss at the upper end of the valve body 1; the lower shaft sleeve 6 is fixedly arranged in a shaft hole arranged on a boss at the lower end of the valve body 1; the valve rod 7 is positioned in a water through hole arranged in the valve body 1, the upper end and the lower end of the valve rod 7 are arranged in shaft holes arranged on an upper boss and a lower boss of the valve body 1 and are rotatably connected with the valve body 1 through an upper shaft sleeve 5 and a lower shaft sleeve 6, and the upper end of the valve rod 7 extends into the turbine rotator 3 and is connected with an output rotating shaft of the turbine rotator 3; the butterfly plate 9 is positioned in a water through hole arranged in the valve body 1 and is fixedly arranged on the valve rod 7 through a pin 8; the pressing ring 11 is positioned at one side of the butterfly plate 9 and is fixedly arranged on the butterfly plate 9 through bolts, and a sealing gasket 10 is fixedly arranged between the butterfly plate 9 and the pressing ring 11; the sealing mechanism 12 is positioned at one side of the pressing ring 11 and is fixedly arranged in a water through hole arranged in the valve body 1 through a bolt; the packing 13 is arranged in the shaft holes arranged on the bosses at the upper end and the lower end of the valve body 1; the packing gland 14 is positioned above the valve body 1 and is fixedly connected with the valve body 1 through bolts, the lower end of the packing gland 14 extends into a shaft hole arranged on a boss at the upper end of the valve body 1, and packing 13 arranged in the shaft hole is extruded; the bottom cover 15 is positioned at the lower end of the valve body 1 and is fixedly connected with the valve body 1 through a bolt, the upper end of the bottom cover 15 extends into a shaft hole arranged on a boss at the lower end of the valve body 1, and the filler 13 arranged in the shaft hole is extruded; grooves are also formed in the upper end and the lower end of the valve rod 7, and the sealing rings 16 are arranged in the grooves formed in the upper end and the lower end of the valve rod 7; the sealing block ring 17 is positioned in the water through hole arranged on the valve body 1 and is fixedly arranged at the junction of the shaft hole arranged on the boss of the valve body 1 and the surface of the water through hole; the filter plate 18 is positioned in the water through hole of the valve body 1 and is fixedly arranged at one side of the butterfly plate 9; a gauze filter layer 19 is fixedly arranged on one side of the filter plate 18 far away from the butterfly plate 9.
The sealing mechanism 12 comprises a movable sealing ring 16, a fixed ring, a spring and an end face sealing ring 16; the movable sealing ring 16 is positioned in the water through hole of the valve body 1 and can be slidably arranged on one side of the pressing ring 11; the fixed ring is positioned on one side of the movable sealing ring 16 and is fixedly connected with the valve body 1 through a bolt; the spring is arranged between the movable sealing ring 16 and the fixed sealing ring 16; the end face seal ring 16 is provided on a step provided in the water passage hole.
A deposition groove is arranged in a water through hole of the valve body 1, the deposition groove is positioned at one side, far away from the butterfly plate 9, of the lower end of the filter plate 18, a sand discharge port is arranged at the lower end of the dust deposition groove, and a sealing plug 20 is fixedly installed at the sand discharge port.
The filter plate 18 is obliquely arranged, the distance between the upper end of the filter plate 18 and the butterfly plate 9 is larger than the distance between the lower end of the filter plate 18 and the butterfly plate 9, and a plurality of water through holes are formed in the filter plate 18.
The contact surface of the pressing ring 11 and the movable sealing ring 16 is a sealing surface, and the sealing surface is an arc surface.
And wear-resistant metal layers are arranged on the surfaces of the butterfly plate 9, the pressing ring 11, the sealing mechanism 12 and the water through hole.
The working principle is as follows: the butterfly valve is connected with a pipeline through grooves formed in two ends of a valve body 1, a hand wheel 4 is rotated to drive a turbine rotator 3 to drive a valve rod 7 connected with an output shaft of the turbine rotator to rotate, a butterfly plate 9 is driven to rotate through the rotation of the valve rod 7, the butterfly plate 9 and a sealing part are offset, so that the butterfly plate 9 is opened, then a fluid moves under the action of pressure and sequentially penetrates through a filter plate 18 and a gauze filter layer 19, large-particle silt in the fluid is deposited at the bottom of the fluid due to large mass, the fluid falls into a sedimentation tank when moving to the sedimentation tank on the side, far away from the butterfly plate 9, of the lower end of the filter plate 18, small-particle silt is mixed in the fluid and moves to the left side, the gauze filter layer 19 on the right side of the filter plate 18 filters the silt in the fluid, the fluid moves to the right side through the gauze filter layer 19, and the lower-particle silt is left on the gauze filter layer 19, the silt falls downwards along the filter plate 18 under the washing of fluid and falls into a sedimentation tank below, filtered silt is temporarily stored in the sedimentation tank at the lower end of the filter plate 18, a sealing plug 20 below the sedimentation tank is opened at regular time, the silt in the sedimentation tank is discharged from a silt discharge port, the effect of filtering the silt in the fluid is achieved through the filter plate 18 and a gauze filter layer 19, the problem of butterfly valve blockage is avoided, meanwhile, a sealing plug ring 17 is arranged at the junction of a shaft hole formed in a boss of the valve body 1 and the surface of a water through hole, the silt is prevented from entering the shaft hole formed in the boss of the valve body 1, and the valve rod 7, the upper shaft sleeve 5 and the lower shaft sleeve 6 are abraded, so that the butterfly valve is difficult to open and close; in the process of opening the butterfly plate 9, the butterfly plate 9 rotates around the central line of the valve rod 7, the pressing ring 11 rotates along with the butterfly plate 9, the pressing ring 11 generates an extrusion friction force on the movable sealing ring 16 when rotating, at the moment, the movable sealing ring 16 slides outwards to reduce the friction between the sealing surface of the movable sealing ring 16 and the sealing surface of the pressing ring 11, the leakage phenomenon caused by weakening of the sealing effect due to long-time abrasion is prevented, when the sealing surface is abraded for a long time, the spring can enable the sealing surface of the movable sealing ring 16 to be still tightly attached to the sealing surface of the pressing ring 11, the effects of small friction resistance, good sealing effect and long service life when the butterfly plate 9 is opened and closed are achieved; when the butterfly valve is in a closed state, the sealing surface of the movable sealing ring 16 and the sealing surface of the pressing ring 11 are matched with each other to seal water flow, forward thrust is exerted on the movable sealing ring 16 by a lateral spring, the sealing surface of the movable sealing ring 16 is tightly attached to the sealing surface of the pressing ring 11 to achieve a good sealing effect, meanwhile, the sealing ring 16 is further arranged between the pressing ring 11 and the butterfly plate 9, sealing is achieved through extrusion matching of the sealing ring 16 and a water through hole of the valve body 1, double sealing is achieved between the pressing ring 11 and the sealing ring 16, and efficient sealing of fluid is achieved to prevent fluid leakage.
Wherein, a deposition groove is arranged in the water through hole of the valve body 1, the deposition groove is positioned at the lower end of the filter plate 18 far away from the butterfly plate 9, the lower end of the dust deposition groove is provided with a sand discharge port, and a sealing plug 20 is fixedly arranged at the sand discharge port; the sedimentation tank can filter the silt of great granule, and the sedimentation tank can keep in the silt of filtering out, regularly opens the sealed end cap 20 of the below of sedimentation tank, discharges the silt in the sedimentation tank from row husky mouth.
Wherein, the filter plate 18 is arranged obliquely, the distance between the upper end of the filter plate 18 and the butterfly plate 9 is larger than the distance between the lower end of the filter plate 18 and the butterfly plate 9, and a plurality of water through holes are arranged on the filter plate 18; the filter has the effect of filtering the conveyed fluid, and the problem that the butterfly valve is blocked by sediment and other substances is avoided, so that the permeability of the butterfly valve is ensured.
Wherein, the contact surface of the pressing ring 11 and the movable sealing ring 16 is a sealing surface which is an arc surface; the sealing performance of the butterfly valve is improved, and the problem of leakage of the butterfly valve is avoided.
Wherein, the surfaces of the butterfly plate 9, the pressing ring 11, the sealing mechanism 12 and the water through hole are provided with wear-resistant metal layers; the impact and abrasion of silt to the inner wall of the valve body 1 are reduced, and the butterfly plate 9, the pressing ring 11 and the sealing mechanism 12 are effectively protected from being impacted and abraded by the silt.
Although the present disclosure has been described in detail with reference to the exemplary embodiments, the present disclosure is not limited thereto, and it will be apparent to those skilled in the art that various modifications and changes can be made thereto without departing from the scope of the present disclosure.

Claims (6)

1. A silt-proof butterfly valve is characterized by comprising a valve body (1), a support frame (2), a turbine rotator (3), a hand wheel (4), an upper shaft sleeve (5), a lower shaft sleeve (6), a valve rod (7), a pin (8), a butterfly plate (9), a sealing washer (10), a pressing ring (11), a sealing mechanism (12), a filler (13), a filler gland (14), a bottom cover (15), a sealing ring (16), a sealing blocking ring (17), a filter plate (18) and a gauze filter layer (19); the left end and the right end of the valve body (1) are provided with grooves connected with a pipeline, the center of the valve body (1) is provided with a water through hole, the upper end and the lower end of the valve body are provided with bosses, and the center of each boss is provided with a shaft hole communicated with the water through hole; the support frame (2) is positioned at the upper end of the valve body (1) and is fixedly connected with a boss arranged at the upper end of the valve body (1) through a bolt; the turbine rotator (3) is fixedly arranged at the upper end of the support frame (2) through bolts; the hand wheel (4) is fixedly arranged on an input rotating shaft of the turbine rotator (3) through a bolt; the upper shaft sleeve (5) is fixedly arranged in a shaft hole arranged on a boss at the upper end of the valve body (1); the lower shaft sleeve (6) is fixedly arranged in a shaft hole arranged on a boss at the lower end of the valve body (1); the valve rod (7) is positioned in a water through hole formed in the valve body (1), the upper end and the lower end of the valve rod (7) are arranged in shaft holes formed in an upper boss and a lower boss of the valve body (1) and are rotatably connected with the valve body (1) through an upper shaft sleeve (5) and a lower shaft sleeve (6), and the upper end of the valve rod (7) extends into the turbine rotator (3) and is connected with an output rotating shaft of the turbine rotator (3); the butterfly plate (9) is positioned in a water through hole arranged in the valve body (1) and is fixedly arranged on the valve rod (7) through a pin (8); the pressing ring (11) is positioned on one side of the butterfly plate (9) and is fixedly arranged on the butterfly plate (9) through bolts, and a sealing gasket (10) is fixedly arranged between the butterfly plate (9) and the pressing ring (11); the sealing mechanism (12) is positioned on one side of the pressing ring (11) and is fixedly arranged in a water through hole formed in the valve body (1) through a bolt; the packing (13) is arranged in the shaft holes arranged on the bosses at the upper end and the lower end of the valve body (1); the packing gland (14) is positioned above the valve body (1) and is fixedly connected with the valve body (1) through bolts, the lower end of the packing gland (14) extends into a shaft hole arranged on a boss at the upper end of the valve body (1), and packing (13) arranged in the shaft hole is extruded; the bottom cover (15) is positioned at the lower end of the valve body (1) and is fixedly connected with the valve body (1) through a bolt, the upper end of the bottom cover (15) extends into a shaft hole arranged on a boss at the lower end of the valve body (1), and a filler (13) arranged in the shaft hole is extruded; grooves are formed in the upper end and the lower end of the valve rod (7), and the sealing rings (16) are arranged in the grooves formed in the upper end and the lower end of the valve rod (7); the sealing plug ring (17) is positioned in a water through hole arranged on the valve body (1) and is fixedly arranged at the junction of a shaft hole arranged on a boss of the valve body (1) and the surface of the water through hole; the filter plate (18) is positioned in the water through hole of the valve body (1) and is fixedly arranged on one side of the butterfly plate (9); a gauze filter layer (19) is fixedly arranged on one side of the filter plate (18) far away from the butterfly plate (9).
2. A silt-proof butterfly valve according to claim 1, characterized in that said sealing means (12) comprise a movable sealing ring (16), a fixed ring, a spring and an end sealing ring (16); the movable sealing ring (16) is positioned in a water through hole of the valve body (1) and can be slidably arranged on one side of the pressing ring (11); the fixed ring is positioned on one side of the movable sealing ring (16) and is fixedly connected with the valve body (1) through a bolt; the spring is arranged between the movable sealing ring (16) and the fixed sealing ring (16); the end face sealing ring (16) is arranged on a step arranged on the water through hole.
3. The mud and sand prevention butterfly valve according to claim 1, wherein a sediment tank is arranged in the water through hole of the valve body (1), the sediment tank is positioned at one side of the lower end of the filter plate (18) far away from the butterfly plate (9), the lower end of the sediment tank is provided with a sand discharge port, and a sealing plug (20) is fixedly arranged at the sand discharge port.
4. The silt-proof butterfly valve according to claim 1, wherein the filter plate (18) is inclined, the distance between the upper end of the filter plate (18) and the butterfly plate (9) is greater than the distance between the lower end of the filter plate (18) and the butterfly plate (9), and a plurality of water through holes are arranged on the filter plate (18).
5. The butterfly valve according to claim 1, wherein the contact surface between the pressing ring (11) and the movable sealing ring (16) is a sealing surface, and the sealing surface is a circular arc surface.
6. A silt-proof butterfly valve according to claim 1, characterised in that the butterfly plate (9), the clamping ring (11), the sealing means (12) and the surface of the water passage hole are provided with a layer of wear-resistant metal.
CN202121651608.2U 2021-07-20 2021-07-20 Silt-proof butterfly valve Active CN215172326U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202121651608.2U CN215172326U (en) 2021-07-20 2021-07-20 Silt-proof butterfly valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202121651608.2U CN215172326U (en) 2021-07-20 2021-07-20 Silt-proof butterfly valve

Publications (1)

Publication Number Publication Date
CN215172326U true CN215172326U (en) 2021-12-14

Family

ID=79392426

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202121651608.2U Active CN215172326U (en) 2021-07-20 2021-07-20 Silt-proof butterfly valve

Country Status (1)

Country Link
CN (1) CN215172326U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114635981A (en) * 2022-03-14 2022-06-17 江苏江沅机械有限公司 Anti-corrosion butterfly valve
CN114838144A (en) * 2022-06-09 2022-08-02 高特自控阀门有限公司 Butterfly valve with silt particle preventing mechanism

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114635981A (en) * 2022-03-14 2022-06-17 江苏江沅机械有限公司 Anti-corrosion butterfly valve
CN114635981B (en) * 2022-03-14 2022-12-13 江苏江沅机械有限公司 Anti-corrosion butterfly valve
CN114838144A (en) * 2022-06-09 2022-08-02 高特自控阀门有限公司 Butterfly valve with silt particle preventing mechanism

Similar Documents

Publication Publication Date Title
CN215172326U (en) Silt-proof butterfly valve
CN211117614U (en) Hard seal flange stop valve
CN101772665B (en) Valve assembly
CN204985799U (en) Lifting type plug -valve
CN105065702A (en) Lifting plug valve and control method thereof
CN201787116U (en) Split type hard seal plug valve
CN104279350A (en) Ball valve for preventing excessive switching
GB2533640A (en) Valve assembly
CN117537099A (en) Anti-blocking valve
CN204664744U (en) Online dirt removing device
CN2675971Y (en) Membrane type double-chamber balanced rapid-open soil discharging electromagnetic valve
CN210978599U (en) Anti-blocking ball valve
CN205908772U (en) Prevent sand setting plate valve
CN215861775U (en) High-efficiency sealed groove butterfly valve
CN201335170Y (en) Top-loading bidirectional hard-seal eccentric spheric valve
CN204573167U (en) A kind of ball valve with filter screen
CN212203216U (en) Ball valve with detachable valve seat
CN209839193U (en) Novel integral forging large-diameter flat gate valve
CN214331556U (en) Eccentric half-ball valve capable of discharging silt
CN209977308U (en) Non-interference guide valve core assembly and non-friction ball valve
CN215110575U (en) Sealed effectual small flow control valve
CN104776243A (en) Ball valve with filter screen
CN204961871U (en) Gate valve
CN209943558U (en) Novel gate valve for daily drainage control
CN215172379U (en) Two-way anti-over-closing precision corrugated pipe gate valve

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant