About Cylinder Seals
Cylinder seals are mainly used to seal gas, prevent oil, water, corrosion, and prevent leakage. According to the different materials used for cylinder seal, there are different classifications in nature, and different types of seals also have different functions. Among the components of the pneumatic transmission system, the function of the device sealing ring and sealing elements is to prevent the leakage of material media and the entry of abnormal small objects such as dust in the surrounding environment.
| Material | Working pressure | Working temperature | Surface speed |
| NBR or FKM | ≤12bar | -20～100C° | ≤l m/s |
Introduction
The classification of cylinder seals can be divided into static seals and dynamic seals according to the principle of relative movement during equipment operation. Its main function is to prevent leakage.
The main cause of cylinder seals leakage is the gap on the material surface and the pressure difference on both sides. The solution to leakage is to seal the gaps on the surface of the material, cut off the leakage channel, increase the leakage resistance in the channel, and increase the working components to reduce the pressure to offset the pressure difference. Cylinder seals should have good sealing performance within the working pressure and a certain temperature range, and can automatically improve the sealing performance as the pressure increases.
Advantages
1. The friction between the cylinder seals and the moving parts should be small, and the friction coefficient should be stable.
2. Due to the optimal sealing lip geometry, it runs smoothly and has a small structure, so both static and dynamic friction are very low.
3. Suitable for dry air and oil-free air. Initial lubrication during assembly plays a vital role in long working life.
4. The cylinder seals has strong corrosion resistance, is not easy to age, has a long service life, and has good wear resistance. It can automatically compensate to a certain extent after wear.
Conclusion: When selecting cylinder seals, you must first determine whether the mechanical equipment to be sealed is a static seal or a dynamic seal. Secondly, it is necessary to determine the direction of movement of the sealing position, such as reciprocating, rotating, spiral or fixed, and determine whether the sealing is an internal tie rod seal or an external piston sealing method. From this, correct and effective sealing elements can be selected for the equipment.
Classification
Cylinder seals are a commonly used sealing material in industrial production and are mainly used for sealing cylinders, valves and other equipment. According to different applications and requirements, cylinder seals can be divided into the following categories:
1. Piston ring: Mainly used for piston sealing in the cylinder, which can effectively prevent gas leakage in the cylinder.
2. Seal ring: It is divided into two types: piston rod seal ring and piston seal ring, which are used to seal the piston rod and piston.
3. Oil seal: Mainly used for oil sealing in the cylinder, which can effectively prevent oil leakage.
4. Bearing seal: Mainly used for bearing sealing, which can effectively prevent dust, moisture and other impurities from entering the bearing.
5. Static seals: Mainly used for static sealing of cylinders and valves, which can effectively prevent gas and liquid leakage.6. Movable seals: Mainly used for dynamic sealing of cylinders and valves, which can effectively prevent gas and liquid leakage.
The above are the main classifications or types of cylinder seals. Different seals are suitable for different occasions and equipment. Choosing the right seal can improve the service life and production efficiency of the equipment.
Application Scenarios
1. Industrial automated production lines: Cylinder seals are widely used in various automated production lines, such as machine tools, packaging machinery, printing machinery, food processing equipment, etc.
2. Mechanical equipment: Cylinder seals are also widely used in various mechanical equipment, such as cranes, excavators, bulldozers, cranes, etc.
3. Ship field: In the marine industry, cylinder seals also play an important role. For example, ship steering gear, propellers and other equipment require the use of cylinder seals.
4. Petrochemical industry: In the petrochemical industry, cylinder seals are also indispensable sealing materials and are used for sealing various pipelines and containers.
5. Metallurgical field: In the metallurgical industry, it is also widely used in various high-temperature and high-pressure equipment, such as blast furnaces, converters, steel-making furnaces, etc.
In short, cylinder seals are widely used in industrial production, and their importance is self-evident.
