Graphite Packing

Graphite Packing

Graphite packing is usually presented as ropes, strings or woven into various shapes. Its advantages are outstanding.

Excellent thermal stability

It can maintain stable performance in a wide temperature range of -200°C to 600°C. And it will not affect its sealing effect due to large fluctuations in temperature.

Стабильные химические свойства

It has excellent tolerance to most chemical substances. Whether it is a strong acid base or organic solvent, it is difficult to cause corrosion.

Low coefficient of friction

In the sealing process, it can reduce the friction loss between the components. And it also plays a certain self-lubricating role, thus extending the service life of the equipment. I

Good compressive resilience

Even if it is under high pressure for a long time, once the pressure is relieved, it can still recover part of the elasticity to ensure a continuous and effective seal.

At the same time, its installation and disassembly are relatively simple, and it can be flexibly adjusted according to different sealing requirements.

Types of graphite packing

Braided graphite packing:

This is the most common type and is made of woven graphite fibers. It has good flexibility and strength, and can adapt to a variety of complex sealing shapes. The braided structure enables it to better fill the gap when sealed, effectively preventing media leakage. You can widely use it in common industrial equipment shaft seal and valve sealing and other scenarios.

Expanded graphite packing:

Made by special treatment of графит to make it expand. It has excellent compressive resilience and can be tightly fitted to the sealing surface after being squeezed to form a good sealing effect. And in high temperature environment, its sealing performance is still stable. You can use it in high temperature and high pressure equipment sealing, such as high temperature reactor, steam pipeline valve.

Wire graphite packing:

Adding wire reinforcement to the graphite packing improves the overall strength and wear resistance of the packing. This packing is suitable for some occasions with high sealing requirements and greater friction and vibration in the operation of the equipment. It can effectively extend the seal life and reduce the maintenance frequency.

Impregnating graphite packing:

Impregnating it with a specific chemical substance to enhance its performance in a certain aspect. For example, after impregnating polytetrafluoroethylene (PTFE), the corrosion resistance and chemical resistance of the filler can be improved. And it is suitable for the sealing of pipelines and equipment transporting highly corrosive media in the chemical industry.

Uses of graphite packing

Machinery industry:

In terms of mechanical seals, you can widely use it in shaft seals and valve stem seals of pumps, compressors, valves and other equipment. Its good flexibility and compression resilience can tightly fill the sealing gap. Effectively prevent the leakage of liquid and gas, and ensure the stable operation of the equipment. For example, in chemical pumps, the graphite packing can withstand the high pressure and corrosive media in the pump. To ensure the normal operation of the pump.

Petrochemical sector:

It plays a key role in pipe connections and equipment sealing in the petrochemical industry. Whether it is a high-temperature and high-pressure reactor, or a pipeline conveying a variety of corrosive media, it can rely on its excellent chemical stability and sealing performance to effectively prevent material leakage and avoid safety accidents. In the oil refining unit, you can use it to seal all kinds of towers, heat exchangers and other equipment.

Energy industry:

In the field of energy, you can use it for sealing equipment such as steam turbines and generators. (Such as thermal power generation and nuclear power.) Its high temperature and wear resistance characteristics can adapt to the sealing requirements of these equipment under high temperature and high-speed operation. Ensuring efficient and safe energy production. In nuclear power plants, it also need to meet the requirements of high purity and stability to ensure the safe operation of nuclear facilities.

Shipbuilding:

In the ship’s power system and various piping, you can use it to seal engines, pumps, valves and other components. Its resistance makes it an ideal choice for ship sealing, which can effectively prevent the leakage of seawater and fuel.

Food and pharmaceutical industry:

In the food and pharmaceutical industry with high hygiene requirements, you can use it in the sealing of mixing equipment, reactor and other equipment. Because of its non-toxic and pollution-free characteristics. It can ensure the sealing effect and ensure that the product is not contaminated.