CN206018079U

CN206018079U - Hub stainless steel W.N flange

Info

Publication number: CN206018079U
Application number: CN201620971891.XU
Authority: CN
Inventors: 沈凡
Original assignee: WUXI SHENYI HUANJIAN FLANGE CO Ltd
Current assignee: WUXI SHENYI HUANJIAN FLANGE CO Ltd
Priority date: 2016-08-30
Filing date: 2016-08-30
Publication date: 2017-03-15
Anticipated expiration: 2026-08-30

Abstract

The utility model discloses a kind of hub stainless steel W.N flange, including：First flange disk and second flange disk, first flange disk and second flange disk include flange body in the form of annular discs, butt welding portion is provided with the end face of the flange body, butt welding portion includes the first hollow prismoid section, the second hollow prismoid section and through hole, the angle of the first hollow prismoid section is 42 ~ 48 degree, and the angle of the second hollow prismoid section is 72 ~ 78 degree；From being provided with the first closure gasket groove, the second closure gasket groove and the 3rd closure gasket groove on the other end of the flange body of first flange disk, the first extruding bulge loop, the second extruding bulge loop and the 3rd extruding bulge loop is provided with the other end of the flange body of second flange disk, is all covered with polyurethane seal rubber layer on the outer end of the first extruding bulge loop, the second extruding bulge loop and the 3rd extruding bulge loop.By the way, the utility model is simple and reasonable, and intensity is high, and welding effect is good, good airproof performance.

Description

Hub stainless steel W.N flange

Technical field

The utility model is related to flange technical field, more particularly to a kind of hub stainless steel W.N flange.

Background technology

Flange is a kind of fastening means, and flange connection is referred to and is connected with each other as one group by flange, pad and bolt three The releasable connection of combined sealing structure.Flange point threaded connection（Screwed connection）Flange, welded flange and clip flange.Flange connects Connect because its connection sealing is good, stabilized structure, intensity are high, easy to use, low cost and other advantages, are widely used in building row Industry, urban water supply, boilers and pressure vessel, petroleum industry, supply, chemical industry, grocery trade, fire-fighting, pharmaceutical industry, power station, water The industries such as profit, HVAC.W.N flange is the one kind in flange, and existing W.N flange could be improved.

Utility model content

The utility model is mainly solving the technical problems that provide a kind of hub stainless steel W.N flange, simple structure is closed Reason, intensity are high, good with pipeline welding effect, there is preferable sealing property also in addition, do not result in leakage.

For solving above-mentioned technical problem, the technical scheme that the utility model is adopted is：A kind of hub stainless steel is provided W.N flange, including：First flange disk and second flange disk, the first flange disk and second flange disk include in the form of annular discs Flange body, be provided with butt welding portion on the end face of the flange body, the butt welding portion includes and flange body end face The first hollow prismoid section being welded and fixed and the second hollow prismoid section being arranged on the first hollow prismoid section outer face, the method A through hole is formed between blue body, the first hollow prismoid section and the second hollow prismoid section, the first hollow prismoid section Angle between lateral surface and horizontal plane is 42 ~ 48 degree, the folder between the lateral surface and horizontal plane of the second hollow prismoid section Angle is 72 ~ 78 degree, and there is on the outer face of the second open circles frustum a welding slot；

From inside to outside be disposed with the other end of the flange body of the first flange disk the first closure gasket groove, Two closure gasket grooves and the 3rd closure gasket groove, the cross section of first closure gasket groove, the second closure gasket groove and the 3rd closure gasket groove In circular arc, the first extruding is from inside to outside disposed with the other end of the flange body of the second flange disk convex Ring, the second extruding bulge loop and the 3rd extruding bulge loop, the first extruding bulge loop, the second extruding bulge loop and the 3rd extrude cutting for bulge loop Face is adapted with the first closure gasket groove, the second closure gasket groove and the 3rd closure gasket groove respectively, and the first extruding bulge loop, second squeeze Polyurethane seal rubber layer is all covered with the outer end of belling ring and the 3rd extruding bulge loop.

In one preferred embodiment of the utility model, the thickness of the polyurethane seal rubber layer is 1 ~ 1.5 millimeter.

In one preferred embodiment of the utility model, the thickness of the polyurethane seal rubber layer is 1.2 millimeters.

The beneficial effects of the utility model are：The utility model hub stainless steel W.N flange, simple and reasonable, intensity Height, good with pipeline welding effect, there is preferable sealing property also in addition, do not result in leakage.

Description of the drawings

For the technical scheme being illustrated more clearly that in the utility model embodiment, below will be to needed for embodiment description Accompanying drawing to be used is briefly described, it should be apparent that, drawings in the following description are only some realities of the present utility model Example is applied, for those of ordinary skill in the art, on the premise of not paying creative work, can be with according to these accompanying drawings Other accompanying drawings are obtained, wherein：

Fig. 1 is the structural representation of one preferred embodiment of the utility model hub stainless steel W.N flange.

In accompanying drawing, the mark of each part is as follows：1st, flange body, the 2, first hollow prismoid section, the 3, second hollow prismoid section, 4th, through hole, 5, welding slot, the 6, first closure gasket groove, the 7, second closure gasket groove, the 8, the 3rd closure gasket groove, 9, first extruding convex Ring, the 10, second extruding bulge loop, the 11, the 3rd extruding bulge loop.

Specific embodiment

Technical scheme in the utility model embodiment will be clearly and completely described below, it is clear that described Embodiment is only a part of embodiment of the present utility model, rather than whole embodiments.Enforcement in based on the utility model Example, all other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made are belonged to The scope of the utility model protection.

Fig. 1 is referred to, the utility model embodiment includes：

A kind of hub stainless steel W.N flange, including：First flange disk and second flange disk, the first flange disk and Two ring flanges include flange body 1 in the form of annular discs, are provided with butt welding portion, the butt welding on the end face of the flange body Portion is included the first hollow prismoid section 2 being welded and fixed with flange body end face and is arranged on the first hollow prismoid section outer face The second hollow prismoid section 3, between the flange body, the first hollow prismoid section and the second hollow prismoid section formed an insertion Hole 4, the angle between the lateral surface and horizontal plane of the first hollow prismoid section is 42 ~ 48 degree, the second hollow prismoid section Lateral surface and horizontal plane between angle be 72 ~ 78 degree, said structure cause flange have higher intensity.

There is on the outer face of the second open circles frustum a welding slot 5, be easy to pipeline insertion welding, weld matter Amount is high.

From inside to outside be disposed with the other end of the flange body of the first flange disk the first closure gasket groove 6, Second closure gasket groove 7 and the 3rd closure gasket groove 8, the horizontal stroke of first closure gasket groove, the second closure gasket groove and the 3rd closure gasket groove Section in circular arc, is from inside to outside disposed with the first extruding on the other end of the flange body of the second flange disk The extruding of bulge loop 9, second bulge loop 10 and the 3rd extruding bulge loop 11, the first extruding bulge loop, the second extruding bulge loop and the 3rd extruding The section of bulge loop is adapted with the first closure gasket groove, the second closure gasket groove and the 3rd closure gasket groove respectively, and first extruding is convex Polyurethane seal rubber layer is all covered with the outer end of ring, the second extruding bulge loop and the 3rd extruding bulge loop.

Above-mentioned flange when using, press respectively by the first extruding extruding of bulge loop 9, second bulge loop 10 and the 3rd extruding bulge loop 11 Tightly in the first closure gasket groove 6, the second closure gasket groove 7 and the 3rd closure gasket groove 8, with preferable sealing property, do not result in Leakage.

The thickness of the polyurethane seal rubber layer is 1 ~ 1.5 millimeter, it is preferred that the thickness of the polyurethane seal rubber layer Spend for 1.2 millimeters.

Embodiment of the present utility model is the foregoing is only, the scope of the claims of the present utility model is not thereby limited, every The equivalent structure that is made using the utility model description or equivalent flow conversion, or directly or indirectly it is used in other phases The technical field of pass, is included in scope of patent protection of the present utility model in the same manner.

Claims

1. a kind of hub stainless steel W.N flange, it is characterised in that include：First flange disk and second flange disk, described first Ring flange and second flange disk include flange body in the form of annular discs, are provided with butt welding on the end face of the flange body Portion, the butt welding portion are included the first hollow prismoid section being welded and fixed with flange body end face and are arranged on the first hollow frustum The second hollow prismoid section on portion outer face, shape between the flange body, the first hollow prismoid section and the second hollow prismoid section Into a through hole, the angle between the lateral surface and horizontal plane of the first hollow prismoid section is 42 ~ 48 degree, and described second is empty Angle between the lateral surface and horizontal plane of heart prismoid section is 72 ~ 78 degree, has on the outer face of the second open circles frustum One welding slot；

First closure gasket groove, second close is from inside to outside disposed with the other end of the flange body of the first flange disk Seal ring groove and the 3rd closure gasket groove, the cross section of first closure gasket groove, the second closure gasket groove and the 3rd closure gasket groove is in Circular arc, be from inside to outside disposed with the other end of the flange body of the second flange disk the first extruding bulge loop, Two extruding bulge loops and the 3rd extruding bulge loop, the section point of the first extruding bulge loop, the second extruding bulge loop and the 3rd extruding bulge loop It is not adapted with the first closure gasket groove, the second closure gasket groove and the 3rd closure gasket groove, the first extruding bulge loop, the second extruding are convex Polyurethane seal rubber layer is all covered with the outer end of ring and the 3rd extruding bulge loop.

2. hub stainless steel W.N flange according to claim 1, it is characterised in that the polyurethane seal rubber layer Thickness is 1 ~ 1.5 millimeter.

3. hub stainless steel W.N flange according to claim 1, it is characterised in that the polyurethane seal rubber layer Thickness is 1.2 millimeters.