Flexible Graphite Gasket

Advantages of flexible graphite gasket

Generally, flexible graphite gasket comes in various shapes such as circular, square, and various irregular forms and has remarkable advantages.

Excellent thermal stability

It can maintain sealing performance within a wide temperature range of -200°C to 650°C.

Stable chemical properties

It shows inertness towards most acids, bases, organic solvents, and other corrosive media.

Reliable sealing performance

Because of the micro elasticity, it can fill the tiny scratches and unevenness on the sealing surface.

Low friction coefficient

This makes it reduce wear on the sealing surface.

Good compression rebound performance

It can compensate for minor defects on the sealing surface and maintain stable sealing even under pressure fluctuations.

3.Types of flexible graphite gasket

According to the material and reinforcement method, flexible graphite gasket can be classified into the following two types:

Pure flexible graphite gasket

This is made of pure flexible graphite material, so it has excellent flexibility. And it is suitable for low-pressure, normal-temperature general sealing scenarios, which cost is relatively low.

Enhanced flexible graphite gasket

It uses metal mesh, metal foil or fiber cloth as the reinforcing layer, and the outer layer is wrapped with flexible graphite. So it has better strength and pressure resistance, suitable for medium and high pressure as well as harsh working conditions. Such as chemical high-pressure pipelines and pressure vessels.

Uses of flexible graphite gasket

In the petrochemical industry

You can use it for sealing various pipelines, pumps, valves, and pressure vessels. Due the stable chemical properties, it can withstand corrosive media such as crude oil, acids, and alkalis. And it is suitable for high-temperature and high-pressure conditions, which can effectively prevent the leakage of media.

Power industry

It can withstand the high temperature and high pressure of steam and ensure the stable operation of the units. So you can use it in the sealing of equipment such as steam turbines, boiler pipes, and power generation units.

Metallurgical industry

You can use it for sealing the pipes, valves and reaction vessels of smelting equipment. It can resist the erosion of high-temperature furnace gas and molten metals, thereby extending the service life of the equipment.

Pharmaceutical and food industries

With the chemical inertness and low susceptibility to contamination, it can be used for sealing in pharmaceutical reaction vessels and food processing equipment.

In the refrigeration and HVAC fields

It also plays an important role in the interface seals of refrigeration pipes and air conditioning systems. Because it can withstand the low temperature characteristics of refrigerants, thus preventing leakage from affecting the efficiency of the system.

Ship and Aviation Fields

It is also applicable to the piping and components sealing of ship engines and aviation equipment. Even in environments with significant vibration and temperature variations, it can still maintain a reliable seal.