About Lip Seal Ring
The lip seal ring has good sealing performance within a certain pressure and temperature range, and can automatically improve the sealing degree as the pressure increases. It has a simple structure, easy use and maintenance, and low cost. It has strong corrosion resistance, is not easy to age, has good wear resistance, can automatically compensate to a certain extent after wear, and has a long working life.
| Материал | NBR |
| Прочность на разрыв | ≥10Mpa |
| Удлинение при разрыве | ≥200% |
| Твердость | ≥70±5 Shore A |
| Рабочая температура | -30~80°C |
| Рабочее давление | <32MPa |
Введение
The lip seal ring is a self-sealing sealing ring that relies on the lip to be close to the surface of the sealing coupling and block the leakage channel to achieve the sealing effect. The working pressure of the sealing ring is the sum of the preload pressure and the fluid pressure. When the pressure of the sealed medium increases, the lip is stretched open and fits the sealing surface more closely, and the sealing performance is further enhanced. In addition, the lip edge The lip seal also has the function of scraping oil, which further increases the sealing performance of the sealing ring. According to the cross-sectional shape, the lip sealing ring with a meter can be divided into Y-shaped ring, V-shaped ring, U-shaped ring, L-shaped ring, and J-shaped ring.
Lip seals are mainly used in reciprocating seals. Compared with extrusion seals such as O-rings, lip seals used in reciprocating seals have better overall performance and longer service life.
Характеристики
1. It has small frictional resistance, a certain resistance to leakage, and strong resistance to impact peak pressure.
2. Due to the needs of different media, materials with various properties can be provided.
3. It has the characteristics of independent axial dust-proof lip, radial sealing lip and grease lip.
4. The stainless steel oil slinger is used as the running surface of the sealing ring, and the elastic material optimized for friction provides low friction to reduce power loss and carbon dioxide emissions.
5. Relying on the superior dirt removal and grease retention capabilities to achieve a longer service life of the bearing.
Considerations
When choosing a lip seal ring, you need to consider the following factors:
1. Working conditions: including pressure, temperature, medium, speed and other factors, which will affect the performance and service life of the lip seal ring.
2. Material selection: The lip seal material should have good wear resistance, chemical resistance, oil resistance and high temperature resistance. Common materials include nitrile rubber, polyurethane, fluorine rubber, etc.
3. Design: The design of the lip seal should take into account the sealing requirements and usage conditions, such as lip size, elasticity, hardness, slope, etc.
4. Installation and maintenance: The installation of the lip seal ring should follow certain steps and precautions to ensure its correct installation and service life. In addition, the lip seal needs regular maintenance and replacement to ensure the normal operation of the system and extend the service life of the seal.
Области применения
1. Hydraulic system: Lip seal ring can be used to manufacture the piston sealing device of the hydraulic cylinder to ensure the sealing performance and service life of the hydraulic cylinder. It is usually installed in a hydraulic cylinder or hydraulic valve to prevent hydraulic oil leakage.
2. Air pressure system: The air pressure in the air pressure system is usually relatively low, but gas leakage will also have a great impact on the normal operation of the equipment. Lip seals can effectively prevent gas leakage and are usually installed in cylinders or valves.
3. Automobiles, construction machinery, and wind power equipment: In these fields, lip seal rings can be used for oil seals in steering gearboxes, main reducers, etc. to ensure the normal operation of the lubrication system.
4. Valve field: Lip seals can be used in various valves, such as check valves, ball valves, butterfly valves, etc., to ensure the sealing and service life of the valve.
5. Bearing field: Lip seals can be used in various bearings, such as guide wheels, tensioners, clutches, reducers, etc., to ensure the sealing and service life of the bearings.
In short, lip seal ring is a very important sealing element, which is widely used in various mechanical equipment.
