O-ring is mainly used in the following working conditions: high pressure working condition, low hardness of O-ring material, radial seal gap filling, internal and external seal application, rotary motion application, large-scale temperature change filling, static and dynamic application, internal and external seal application and rotary motion application.

In terms of installation, price, shape and service life, O-ring has excellent performance and the following characteristics.
1. Simple and fast installation: it is designed according to accurate O-ring requirements and strictly marked for production. Due to the elastic O-ring, it is easy to install.
2. Low price: compared with other types (seals), O-ring is superior in performance and cost.
3. Good performance profile (limit tolerance adaptation): the section design of O-ring can ensure the improvement of performance. This structure can keep the O-ring round and will not be "flattened" under high pressure.

4. Simple structure and long service life: the continuous structure of the O-ring means that the O-ring will not be squeezed, folded and engaged like the spiral structure and discontinuous structure.
5. Improve lubrication: O-rings provide appropriate lubrication for different material configurations. For example, a thin film can be deposited on the metal surface of the PTFE retaining ring to prevent the O-ring from being rapidly worn due to the adhesion of lubricating oil.
6. High pressure resistance: the O-ring is made of rubber material, which is resistant to high pressure and has long service life, which can improve the sealing performance.

Shenzhen Delong Xingye Seal Technology Co., Ltd. has a history of more than 10 years in the rubber seal industry. Relying on its strength in fluid seal technology and special rubber product manufacturing, it has summarized a set of development system suitable for the seal industry. At the same time, the development concept centered on customer demand makes Delong resistant to chemical corrosion, wear resistance, high and low temperature It has strong practical solution ability in resisting special media and provides advanced and reasonable sealing solutions for many customers.