Junta de vedação para flange: o que é e para que serve?

Flange seal: what is it and what is it for?

Having a quality flange sealing gasket is synonymous with guarantee when it comes to preventing leaks in pipe connections in various industrial sectors.

Continue reading and understand what flanges are and the importance of a quality flange sealing gasket.

Flanges: responsible for joining two components of a piping system

Flanges are industrial elements widely used in this type of environment. Their function is to join two components of a piping system. As a characteristic, flanges can be disassembled and reassembled in pairs joined by bolts without much difficulty.

Furthermore, the contact surface between two flanges is maintained under compressive force, providing a complete sealing of the connection. In this way, the flange is functional and quite versatile, allowing the connection of pipes that are not permanent.

In industrial processes involving the use of hydraulic components, the flange is the best part for this type of installation. However, for complete sealing of the pipeline, the flange sealing gasket is also essential and ensures that this process is as effective as possible.

Flange gasket: More effective and resistant sealing

Flange seals are elements that can be used in applications involving boiler covers, stoves, ovens, forklifts, generators and pumps. They are used in the steel, pulp and paper, pharmaceutical and food industries. They are also used in the industrial maintenance sector, and in equipment for the naval and automotive industries.

These sealing gaskets are specially used to join two rough or rough surfaces, being manufactured in various patterns that guarantee greater efficiency and resistance.

Therefore, a good flange sealing gasket, such as the models manufactured by MBX , has the following qualities:

  • Greater sealability;
  • Easy to install;
  • Free of asbestos and graphite (clean, facilitating storage and handling);
  • Highly compressible Non-toxic;
  • Excellent chemical resistance.

However, to offer all these benefits, choosing the best flange seal depends, in addition to a good manufacturer, on aspects such as: temperature, mechanical resistance and pressure in the passage of fluids, whether corrosive or not.

Therefore, the choice of materials used to manufacture the flange sealing gasket has a major effect on the way the gasket behaves during application, as we will see below.

Main types of flange sealing gaskets

For use in the most diverse segments of industry and goods in general, the flange sealing gasket comes in different models, which can be:

  • Gaskets for raised face flanges (RF):

This model refers to the height of the shoulder (1/4” and 1/6”), where the diameter of the cut joints almost touches the screws. The finish of this joint can be grooved or smooth.

  • Gaskets for flat or smooth face flanges (FF)

They cover the entire face and have holes to pass screws whose dimensions are matched to those of the flanges.

  • Flange seals by design

The flange gasket by design has excellent compression and a good fit. It can replace metal gaskets without compromising performance.

  • Sealing gaskets for enveloped flanges

Indicated and prepared for flanges in process situations with high corrosion or susceptible to contamination.

  • Sealing gaskets for spiral flanges

The metal spiral gasket is on this list where serrated and double jacketed gaskets can also be used to seal flanges, but the spirals have a combination of material suitable for absorbing high and severe changes in temperature and pressure.

With a spiral shape, this gasket allows filling in the irregularities of the flanges, ensuring a more hermetic seal with excellent resistance to any variations in operating conditions.

Did you like it? Then take advantage of the information in this article to learn more about MBX valves .

Conheça nosso catálogo de Válvulas de Extração | MBX Máquinas

CaldeiraMbxSegurançaVedação

About us

MBX Indústria e Manutenção de Máquinas is a company specialized in the manufacture of products for boilers. With 100% national manufacturing, MBX brings to the market the creation and supply of efficient and effective solutions for the conduction of fluids and industrial maintenance. MBX focuses on increasing the productivity of its customers through the development of efficient and easy-to-use equipment. Committed to quality in the provision of services, it has a highly qualified team in both the sales and technical assistance areas.

The company is also registered with BNDES, which makes it easier for entrepreneurs to access its solutions. Quality, security and support are characteristics of the company that has invested in creating products for the national industry.