CN201884640U

CN201884640U - Metal ring gasket

Info

Publication number: CN201884640U
Application number: CN2010205912612U
Authority: CN
Inventors: 薛全胜
Original assignee: LUOYANG YONGDING SEALS CO Ltd
Current assignee: LUOYANG YONGDING SEALS CO Ltd
Priority date: 2010-11-04
Filing date: 2010-11-04
Publication date: 2011-06-29
Anticipated expiration: 2020-11-04

Abstract

The utility model discloses a metal ring gasket, which relates to a seal gasket. The metal ring gasket is an annular member. The cross section of the annular member is elliptic or octagonal. The metal ring gasket is made of an annular metal member; according to the structural shape of a sealing surface, a ring gasket of which the cross section is elliptic or octagonal can be selected. The metal ring gasket not only has a better sealing effect but also has the advantages of high pressure resistance, alternating pressure resistance and the like. The metal ring gasket can be used under the working condition with strict sealing requirements, such as the fields of marine operation and chemical and petrochemical industry valve seal.

Description

A kind of metal ring pad

Technical field

The utility model relates to a kind of gasket seal, and a kind of specifically have a high-intensity metal ring pad.

Background technique

At present, in the pipeline valve field of sealing technology, the general pad of making by single rubber or asbestos material that adopts in flange seal surface, because every field difference, the sealing medium difference, increasing occasion needs this kind pad to have high pressure resistant or characteristics such as opposing alternating pressure etc. when causing using, and conventional rubber or asbestos material pad then can't satisfy above-mentioned requirements, make that the sealing surface effect is relatively poor.

The model utility content

The purpose of this utility model is to be the deficiency that solves the problems of the technologies described above, and a kind of metal ring pad is provided, and it is simple in structure, and good sealing effect also has high pressure resistant or advantage such as opposing alternating pressure etc.

The utility model is the deficiency that solves the problems of the technologies described above, and the technological scheme that is adopted is: a kind of metal ring pad, be annular construction member, and the cross section of this annular construction member is ellipse or octagon.

The material of described annular construction member is carbon steel or stainless steel.

The beneficial effects of the utility model are:

1, the utility model is made by annular metal member, according to the structure shape of sealing surface, can select to use the air ring in ellipse or octagon cross section, and not only sealing effect is better, and has high pressure resistant or advantage such as opposing alternating pressure etc.Can under the operating mode that strict seal requires, use for example operation on the sea, chemistry and petrochemical industry valve seal field.

2, through evidence: the cross section be oval or octagonal pad when guaranteeing sealing effect, the damage of flange facing is reached minimum, be more suitable for utilizing and take place in the operating mode of vibrations at flange.

Description of drawings

Fig. 1 is a structural representation of the present utility model.

Fig. 2 is the sectional view of first kind of mode of execution of the utility model.

Fig. 3 is the sectional view of second kind of mode of execution of the utility model.

Fig. 4 is the sectional view of the third mode of execution of the utility model.

Fig. 5 is the sectional view of the 4th kind of mode of execution of the utility model.

Embodiment

As Fig. 1, Fig. 2 and shown in Figure 3, a kind of metal ring pad is annular construction member, and the cross section of this annular construction member is ellipse or octagon.

The material of described annular construction member can be selected carbon steel, soft iron or stainless steel, and stainless steel is preferentially selected 300 series for use, and for example 304,316 or 321 or the like.

Fig. 2 is the sectional view of first kind of mode of execution of the utility model, its sectional shape is oval, and Fig. 3 is the sectional view of second kind of mode of execution of the utility model, and its cross section is a R type octagon, be octagonal a kind of mode of execution, this kind structure is used and is being had the flange of Baltimore groove.

Fig. 4 is the sectional view of the third mode of execution of the utility model, its cross section is a RX type octagon, be similarly octagonal a kind of embodiment, at first contact with flange with the external sealed face when this kind structure pad uses, very high system pressure can produce very high base pressure.

Fig. 5 is the sectional view of the 4th kind of mode of execution of the utility model, its cross section is a BX type octagon, be octagonal a kind of embodiment, the pad of this kind structure has the built-in system pressure that strengthens the spacer base pressure on the flange contact facings and produce to carry out oneself's sealing control.

The utility model is made by annular metal member, according to the planform of sealing surface, but the air ring in choice for use ellipse or octagonal cross section, not only sealing effectiveness is better, and has high pressure resistant or advantage such as opposing alternating pressure etc. Can under the operating mode of strict seal request, use, for example be applied to the pipe flange of oil and gas, pressure vessel, the high velocity engagement face, the metal sealing field of HTHP valve gap etc., especially pressure, temperature have the occasion of fluctuation, still can keep preferably sealing.

Claims

1. a metal ring pad is annular construction member, it is characterized in that: the cross section of this annular construction member is ellipse or octagon.

2. a kind of metal ring pad according to claim 1 is characterized in that: the material of described annular construction member is carbon steel or stainless steel.