CN203239959U - Scouring-resistant butterfly valve - Google Patents

Scouring-resistant butterfly valve Download PDF

Info

Publication number
CN203239959U
CN203239959U CN 201320263807 CN201320263807U CN203239959U CN 203239959 U CN203239959 U CN 203239959U CN 201320263807 CN201320263807 CN 201320263807 CN 201320263807 U CN201320263807 U CN 201320263807U CN 203239959 U CN203239959 U CN 203239959U
Authority
CN
China
Prior art keywords
valve
scouring
seal ring
plate
sealing
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.)
Expired - Fee Related
Application number
CN 201320263807
Other languages
Chinese (zh)
Inventor
尹建敏
王焕彩
黄政洲
郑福海
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.)
ZHENGZHOU PUMP VALVE MANUFACTURING Co Ltd
Original Assignee
ZHENGZHOU PUMP VALVE MANUFACTURING 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 ZHENGZHOU PUMP VALVE MANUFACTURING Co Ltd filed Critical ZHENGZHOU PUMP VALVE MANUFACTURING Co Ltd
Priority to CN 201320263807 priority Critical patent/CN203239959U/en
Application granted granted Critical
Publication of CN203239959U publication Critical patent/CN203239959U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

The utility model discloses a scouring-resistant butterfly valve which solves the problem that when an existing triple-eccentric sealing butterfly valve is used in high-speed media, a multi-layer sealing ring is scoured easily, and the sealing performance of the butterfly valve is directly influenced. The souring resistant butterfly valve comprises a valve body, a dish plate, a pressing plate and a sealing ring, wherein the pressing plate and the dish plate are fixedly connected, a containing groove is formed between the pressing plate and the dish plate, the sealing ring is arranged inside the containing groove, the sealing ring is made of metal stainless steel materials, and the outer surface of the sealing ring is attached to the inner wall of the valve body. According to the scouring-resistant butterfly valve, due to the fact that the sealing ring made of the metal stainless steel materials is adopted, the scouring-resistant butterfly valve has the dual advantages of metal hard sealing and soft sealing, the sealing ring can not be easily damaged by scouring in low-temperature media, high-temperature media or high-speed media, the scouring-resistant butterfly valve has the zero-leakage sealing performance, therefore, the scouring-resistant butterfly valve has a wider application range, and meanwhile the scouring-resistant butterfly valve has better market competitiveness.

Description

The resistance to erosion butterfly valve
Technical field
The utility model relates to a kind of butterfly valve, is specifically related to a kind of resistance to erosion butterfly valve.
Background technique
Butterfly valve is again Flap valve, is a kind of modulating valve simple in structure, also can be used for the switch control of low pressure pipeline simultaneously.Butterfly valve (Butterfly Valve) refers to that closure member (flap or butterfly plate) is disk, rotates to reach a kind of valve of open and close around valve shaft, and main rising cut off and throttling usefulness on pipeline.Existing butterfly valve mainly forms (referring to accompanying drawing 1) by 1 end cap, 2 sealing gaskets, 3 divided rings, 4 axle sleeves, 5 lower valve rods, 6 taper pins, 7 butterfly plates, 8 upper valve rods, 9 pressing plates, 10 seal rings, 11 fillers, 12 bolts, 13 Glands, 14 nuts, 15 flat keys etc.Three eccentric sealed butterfly valves in the market, wherein seal ring is to adopt this seal ring of multi-layer sealing ring not to be suitable for high pressure sealing, and during valve wide open, the butterfly plate seal ring is in the washing away of high speed medium, multi-layer sealing ring can become very soon and washes out, and directly affects the sealability of butterfly valve.
Summary of the invention
Existing three eccentric sealed butterfly valves easily make multi-layer sealing ring be washed for the high speed medium in the background technique in order to solve, and directly affect the problem of the sealability of butterfly valve, and the utility model provides a kind of resistance to erosion butterfly valve.
The technical solution of the utility model is: a kind of resistance to erosion butterfly valve, comprise valve body, dish plate, pressing plate and seal ring, described pressing plate and dish plate be fixedly connected with and pressing plate and dish plate between form containing groove, described seal ring is located in the containing groove, described seal ring adopts the metal stainless steel material to make, and outer surface and the valve interior wall of described seal ring fit.
As a kind of improvement of the present utility model, be provided with sealing gasket between described seal ring and the dish plate.
As further improvement of the utility model, described pressing plate and dish plate are connected by screw.
As further improvement of the utility model, described dish plate is provided with counterbore, and described pressing plate is provided with counter sink, and described screw passes counter sink and is connected with counterbore threads on the dish plate.
As further improvement of the utility model, described dish plate is provided with shoulder block, and described seal ring is located on the shoulder block, and the shoulder block on the described dish plate and the surface of pressing plate consist of described containing groove.
As further improvement of the utility model, the inwall that described valve body contacts with seal ring is the inclined-plane.
The beneficial effects of the utility model are, the seal ring that adopts the metal stainless steel material to make, two-fold advantage with metal hard-sealing and soft seal, no matter in low temperature, high temperature, at a high speed medium, seal ring is not easy to be washed damage, sealability with zero seepage is so that this product have larger Applicable scope, simultaneously also so that this product has the better market competitiveness.Simultaneously the utility model also have simple in structure, component processing is convenient for production, easy to assembly, in the sealing that has guaranteed product.
Description of drawings
Accompanying drawing 1 is the structural representation of existing butterfly valve.
Accompanying drawing 2 is structural representation partial enlarged drawing of the present utility model.
Among the figure, 1, valve body; 11, valve interior wall; 2, dish plate; 21, counterbore; 3, pressing plate; 31, counter sink; 4, seal ring; 5, containing groove; 6, sealing gasket; 7, screw.
Embodiment
Below in conjunction with accompanying drawing the utility model embodiment is described further:
By shown in Figure 2, a kind of resistance to erosion butterfly valve, comprise valve body 1, dish plate 2, pressing plate 3 and seal ring 4, described pressing plate 3 and dish plate 2 be fixedly connected with and pressing plate 3 and dish plate 2 between form containing groove 5, specifically, described dish plate 2 is provided with shoulder block, and described seal ring 4 is located on the shoulder block, and the shoulder block on the described dish plate 2 and the surface of pressing plate 3 consist of described containing groove 5.Described seal ring 4 is located in the containing groove 5, and described seal ring 4 adopts the metal stainless steel material to make, and the outer surface of described seal ring 4 and valve interior wall 11 fit.Institute specifically, stating the inwall that valve body 1 contacts with seal ring 4 is the inclined-plane.Valve interior wall is that the inclined-plane is so that the area that contacts with seal ring is larger, sealing effect is better, the beneficial effects of the utility model are, the seal ring that adopts the metal stainless steel material to make has the two-fold advantage of metal hard-sealing and soft seal, no matter in low temperature, high temperature, at a high speed medium, seal ring is not easy to be washed damage, sealability with zero seepage is so that this product have larger Applicable scope, simultaneously also so that this product has the better market competitiveness.Simultaneously the utility model also have simple in structure, component processing is convenient for production, easy to assembly, in the sealing that has guaranteed product.
Be provided with sealing gasket 6 between described seal ring 4 and the dish plate 2.Such structure has guaranteed the sealing of product so that medium can not leak between butterfly plate and seal ring.
Described pressing plate 3 is connected with the dish plate and is connected by screw 7, and specifically, described dish plate 2 is provided with counterbore 21, and described pressing plate 3 is provided with counter sink 31, and described screw 7 passes counter sink 31 and is threaded with counterbore 21 on the dish plate 2.This spline structure is so that pressing plate is connected reliably with the dish plate, and easy accessibility is convenient to the assembling of seal ring simultaneously.
Every technician's notice: although the utility model describes according to above-mentioned embodiment; but invention thought of the present utility model is not limited in this model utility; the repacking of any utilization inventive concept all will be included in this patent scope of patent protection.

Claims (6)

1. resistance to erosion butterfly valve, comprise valve body (1), dish plate (2), pressing plate (3) and seal ring (4), it is characterized in that: described pressing plate (3) and dish plate (2) be fixedly connected with and pressing plate (3) and dish plate (2) between form containing groove (5), described seal ring (4) is located in the containing groove (5), described seal ring (4) adopts the metal stainless steel material to make, and the outer surface of described seal ring (4) and valve interior wall (11) fit.
2. resistance to erosion butterfly valve according to claim 1 is characterized in that being provided with sealing gasket (6) between described seal ring (4) and the dish plate (2).
3. resistance to erosion butterfly valve according to claim 1 is characterized in that described pressing plate (3) is connected 2 with the dish plate) connect by screw (7).
4. resistance to erosion butterfly valve according to claim 3, it is characterized in that described dish plate (2) is provided with counterbore (21), described pressing plate (3) is provided with counter sink (31), and described screw (7) passes counter sink (31) and is threaded with counterbore (21) on the dish plate (2).
5. resistance to erosion butterfly valve according to claim 1 is characterized in that described dish plate (2) is provided with shoulder block, and described seal ring (4) is located on the shoulder block, and the surface of the shoulder block on the described dish plate (2) and pressing plate (3) consists of described containing groove (5).
6. resistance to erosion butterfly valve according to claim 1 is characterized in that the inwall that described valve body (1) contacts with seal ring (4) is the inclined-plane.
CN 201320263807 2013-05-15 2013-05-15 Scouring-resistant butterfly valve Expired - Fee Related CN203239959U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201320263807 CN203239959U (en) 2013-05-15 2013-05-15 Scouring-resistant butterfly valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201320263807 CN203239959U (en) 2013-05-15 2013-05-15 Scouring-resistant butterfly valve

Publications (1)

Publication Number Publication Date
CN203239959U true CN203239959U (en) 2013-10-16

Family

ID=49317257

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201320263807 Expired - Fee Related CN203239959U (en) 2013-05-15 2013-05-15 Scouring-resistant butterfly valve

Country Status (1)

Country Link
CN (1) CN203239959U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106051179A (en) * 2016-07-29 2016-10-26 上海凯工阀门有限公司 High-performance metal hard sealing butterfly valve

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106051179A (en) * 2016-07-29 2016-10-26 上海凯工阀门有限公司 High-performance metal hard sealing butterfly valve

Similar Documents

Publication Publication Date Title
CN203239959U (en) Scouring-resistant butterfly valve
CN203560467U (en) Triple-eccentric metal hard-sealing butterfly valve
CN103470793B (en) Double inclined plane eccentric-butterfly-valve
CN203189750U (en) Washing-resisting universal sealing strop valve
CN201627949U (en) Large-diameter parallel single disc gate valve
CN204114227U (en) A kind of novel fluorine-lined membrane valve
CN201963895U (en) Labyrinth-type stop valve
CN208900733U (en) A kind of fast-assembling wafer type butterfly valve
CN203614771U (en) Soft seal eccentric butterfly valve
CN205278422U (en) Rotatory gate valve of side direction
CN208295268U (en) A kind of dual-seal rotary cut-off valve
CN205191010U (en) Take threaded for union of lens washer
CN204628625U (en) A kind of full-metallic hard seal ball valve
CN204784809U (en) Heavy -calibre valve
CN203627835U (en) Corrugated pipe discharge valve with corrugated pipe protecting sleeve
CN203532783U (en) Triple-eccentric hard-seal butterfly valve
CN203176376U (en) Multi-level sealing stop valve
CN203730817U (en) All-welded fixing ball valve
CN207454802U (en) A kind of inside screw nonrising stem type gate valve for improving sealing performance
CN204592341U (en) Screw thread sealed valve in one
CN202901336U (en) Brake valve
CN204061977U (en) High-performance steel lined with fluoroplastic pellet valve
CN206175684U (en) Machinery valve body
CN202674359U (en) Lifting stopcock
CN205207885U (en) Sealing device of flow control butterfly valve

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20131016

Termination date: 20170515