CN202532070U - Different neck flange - Google Patents

Different neck flange Download PDF

Info

Publication number
CN202532070U
CN202532070U CN2012201661099U CN201220166109U CN202532070U CN 202532070 U CN202532070 U CN 202532070U CN 2012201661099 U CN2012201661099 U CN 2012201661099U CN 201220166109 U CN201220166109 U CN 201220166109U CN 202532070 U CN202532070 U CN 202532070U
Authority
CN
China
Prior art keywords
flange
pipeline hole
hole
different neck
pipe 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.)
Expired - Fee Related
Application number
CN2012201661099U
Other languages
Chinese (zh)
Inventor
陈玉娟
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.)
JIANGYIN SANLIN MACHINERY PIPE FITTINGS CO Ltd
Original Assignee
JIANGYIN SANLIN MACHINERY PIPE FITTINGS 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 JIANGYIN SANLIN MACHINERY PIPE FITTINGS CO Ltd filed Critical JIANGYIN SANLIN MACHINERY PIPE FITTINGS CO Ltd
Priority to CN2012201661099U priority Critical patent/CN202532070U/en
Application granted granted Critical
Publication of CN202532070U publication Critical patent/CN202532070U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Abstract

The utility model relates to a different neck flange, which comprises a flange body (1), wherein a plurality of mounting holes (2) are arranged on the flange body (1) in the toroidal direction, and a pipeline hole is arranged in the middle of the flange body (1). The different neck flange is characterized in that the pipeline hole comprises an upper pipeline hole (3), a middle pipeline hole (4) and a lower pipeline hole (5), wherein the diameter of the upper pipeline hole (3) is smaller than the diameter of the lower pipeline hole (5). Because the pipeline hole comprises the upper pipeline hole, the middle pipeline hole and the lower pipeline hole, the different neck flange is excellent in sealing performance, and guarantees mounting effect.

Description

Different neck flange
Technical field
The utility model relates to a kind of flange, relates in particular to a kind of different neck flange, belongs to the pipe fitting technical field.
Background technique
Flange is flange plate or bead again.Flange is to make pipe and the interconnective part of pipe, is connected in pipe end.Perforation on the flange, bolt are close to two flanges.Seal with liner between flange.Flange branch be threaded (wire connection) flange and welded flange.
For the pipe of two different-diameters, when interconnecting, traditional flange is difficult to be connected well, makes sealability relatively poor, and effect is installed in influence.
Summary of the invention
The purpose of the utility model is to overcome above-mentioned deficiency, provides a kind of sealability better, guarantees to install the different neck flange of effect.
The purpose of the utility model is achieved in that
A kind of different neck flange; It comprises flange body, and hoop is provided with a plurality of mounting holes on the said flange body, and the centre of said flange body is provided with pipe hole; Said pipe hole comprises upper pipeline hole, middle pipe hole and following pipe hole, and the diameter of said upper pipeline hole is less than the diameter of following pipe hole.
As a kind of preferred, said middle pipe hole is that tapering is 4 ° ~ 7 °.
Compared with prior art, the beneficial effect of the utility model is:
The utility model guarantees to install the advantage of effect because pipe hole comprises upper pipeline hole, middle pipe hole and following pipe hole, and it is better to make that this different neck flange has sealability.
Description of drawings
Fig. 1 is the structural representation of the different neck flange of the utility model.
Wherein:
Flange body 1
Mounting hole 2
Upper pipeline hole 3
Middle pipe hole 4
Following pipe hole 5.
Embodiment
Referring to Fig. 1; A kind of different neck flange that the utility model relates to, it comprises flange body 1, hoop is provided with a plurality of mounting holes 2 on the said flange body 1; The centre of said flange body 1 is provided with pipe hole; Said pipe hole comprises upper pipeline hole 3, middle pipe hole 4 and following pipe hole 5, and the diameter of said upper pipeline hole 3 is less than the diameter of following pipe hole 5, and said middle pipe hole 4 is 4 ° ~ 7 ° for tapering.

Claims (2)

1. different neck flange; It comprises flange body (1); Said flange body (1) goes up hoop and is provided with a plurality of mounting holes (2); The centre of said flange body (1) is provided with pipe hole, it is characterized in that said pipe hole comprises upper pipeline hole (3), middle pipe hole (4) and following pipe hole (5), and the diameter of said upper pipeline hole (3) is less than the diameter of following pipe hole (5).
2. a kind of different neck flange according to claim 1 is characterized in that said middle pipe hole (4) is 4 ° ~ 7 ° for tapering.
CN2012201661099U 2012-04-19 2012-04-19 Different neck flange Expired - Fee Related CN202532070U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2012201661099U CN202532070U (en) 2012-04-19 2012-04-19 Different neck flange

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2012201661099U CN202532070U (en) 2012-04-19 2012-04-19 Different neck flange

Publications (1)

Publication Number Publication Date
CN202532070U true CN202532070U (en) 2012-11-14

Family

ID=47133257

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2012201661099U Expired - Fee Related CN202532070U (en) 2012-04-19 2012-04-19 Different neck flange

Country Status (1)

Country Link
CN (1) CN202532070U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103968168A (en) * 2014-05-27 2014-08-06 苏州市诚键法兰制造有限公司 Welding neck flange

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103968168A (en) * 2014-05-27 2014-08-06 苏州市诚键法兰制造有限公司 Welding neck flange

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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

Granted publication date: 20121114

Termination date: 20150419

EXPY Termination of patent right or utility model