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Sealing gasket for piping systems and its manufacturing process

一种密封垫圈、管道系统的技术，应用在发动机的密封、管子/管接头/管件、法兰连接等方向，能够解决密封垫圈困难等问题

Inactive Publication Date: 2017-05-24
PETROLEO BRASILEIRO SA (PETROBRAS)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Thus, it becomes more difficult to use prior art solid or helically wound gaskets, forming such gaskets into an oval shape due to the presence of the outer rigid ring of the gasket

Method used

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  • Sealing gasket for piping systems and its manufacturing process
  • Sealing gasket for piping systems and its manufacturing process
  • Sealing gasket for piping systems and its manufacturing process

Examples

Experimental program
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Effect test

Embodiment Construction

[0020] First of all, it should be emphasized here that the following description will be based on a preferred embodiment of the invention. However, as will be apparent to those skilled in the art, the present invention is not limited to these particular embodiments.

[0021] image 3 An elevational view of the core 10 of the sealing gasket according to a preferred embodiment of the present invention is shown. As can be seen, unlike prior art gaskets, the gasket according to the invention comprises a core 10 formed from a plurality of concentric metal rings 10a, each ring 10a having a substantially rectangular cross-section, wherein all rings The rectangular sections of 10a have the same height.

[0022] Preferably, the core 10 of the sealing gasket of the invention is formed by at least four concentric metal rings 10a.

[0023] Preferably, each concentric metal ring 10a has a square cross-section. Thus, all rings 10a have the same height and width, so that the core of the ...

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PUM

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Abstract

The present invention relates to sealing gaskets applicable to pipes, valves and boiler equipment. In this context, the present invention provides a sealing gasket for piping systems comprising (i) a core (10) formed by a plurality of concentric metal rings (10a), each ring (10a) comprising a substantially rectangular cross-section, wherein the height of the rectangular cross-section is the same for all the rings (10a), and (ii) surface coating (12) of flexible material applied to the upper and lower surfaces of the core (10). The present invention also provides the manufacturing process of said sealing gasket. Thus, the present invention provides a sealing gasket (i) that eliminates the need for an external rigid ring, (ii) that is easy to conform for reduced-diameter sealing gaskets and (iii) can be easily formed into different shapes, such as an oval shape, which is particularly useful for sealing between the body and the gate valve bonnet.

Description

technical field [0001] The present invention is directed to sealing gaskets that can be applied to pipes, valves and boiler equipment. Background technique [0002] In piping systems, sealing gaskets in flanges are a necessary component to ensure integrity against leaks. [0003] Some types of gaskets perform well in certain applications, but may not be suitable for others. Solid, grooved and graphite-coated gaskets are known under the trade names CAMPROFILE or KAMMPROFILE and perform well for sealing equipment such as heat exchangers. figure 1 A cross-sectional view of a solid, grooved and graphite-coated sealing gasket known in the prior art is shown. The inner part of the gasket ( figure 1 The right side of ) includes grooves that receive the upper and lower graphite cladding. The inner portion is the portion that effectively functions as a sealing element. The outer portion of the gasket ( figure 1 to the left) does not include any grooves or cladding. This outer ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16J15/08
CPCF16J15/0818F16J15/125F16L23/18F16J2015/0856F16J15/0806F16L25/0018
Inventor P·K·乌索达
Owner PETROLEO BRASILEIRO SA (PETROBRAS)
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