In the future, the sealing technology will often use low friction, lightweight, high-efficiency, and long-life combination sealing devices and oil-free lubrication seals in terms of structure and type. Dongheng Seal tells you Both Xiaban Sealing Company and Glock Company in the United States have produced a series of sealing products, which are also very effective sealing components in reciprocating hydraulic systems.

In addition, in order to meet the usage requirements of different working conditions, various multipole seals will be gradually developed from commonly used primary seals or one type of seal to a combination of contact and non-contact seals. Secondly, with the development of science and technology, new sealing materials will continue to emerge and be applied. In the late 1960s, since the introduction of expanded graphite in the United States, it has become an ideal sealing material with various unique properties. It can solve the harsh sealing problems under high and low temperature, high and low pressure, strong corrosion and other working conditions for mechanical equipment, chemical industry equipment, metallurgical engineering machinery, aerospace and other industrial sectors, such as machinery, water pumps, soft pipes, and valves, and has achieved good economic results. In addition, polytetrafluoroethylene, known as the "King of Plastics", has excellent corrosion resistance and resistance to high and low temperatures. Its corrosion resistance exceeds that of glass, ceramics, stainless steel, etc. New polymer reinforced polytetrafluoroethylene will be widely used as a self-lubricating sealing material in mechanical equipment. At present, foreign countries have widely used fluorine and silicone rubber with different grades and properties as sealing materials, thereby greatly improving the service life of sealing components.

In the future, combination seals will be the mainstream of development. In terms of reciprocating sealing, the combination of polytetrafluoroethylene and rubber is mainly used, and the low friction and high elasticity sealing system of polytetrafluoroethylene is widely used in hydraulic cylinders; In terms of rotary sealing, the PTFE assembly type and PTFE oil seal reinforced with sheet shaped elastic yellow are mainly used to reduce equipment leakage, improve sealing performance and service life.