Corrosion-resistant rubber seal is a commonly used seal with good corrosion resistance. It is made of rubber material and can provide reliable sealing effect in various chemical media, solvents and corrosive gas environments.
1. Material selection
Material selection for corrosion-resistant rubber seals is very important. Common corrosion-resistant rubber materials include fluorine rubber (FKM), chloroprene rubber (CR), nitrile rubber (NBR), etc.
2. Common types
O-ring: O-ring is one of the most common rubber seals and has a circular cross-section. It can be used for static sealing or dynamic sealing, can withstand high pressure and high temperature, and provides excellent sealing performance.
Square sealing ring: Square sealing ring is usually used for square or rectangular sealing interfaces, such as sealing caps, gaskets, etc. They have good sealing performance and corrosion resistance, and are suitable for the sealing needs of various media.
Submersible seals: Submersible seals are usually used for sealing pumps, mixers and other equipment. They are corrosion and abrasion resistant and provide good sealing in submersible conditions.
Diving sealing ring is a key sealing component used in diving equipment, mainly used to prevent the leakage of water and other liquids.
Detailed introduction to diving seals
- Material and structure
- Diving seals are usually made of elastic materials, such as rubber, silicone or polyurethane, to meet their sealing requirements in different environments. Its structure is usually annular or circular, and is designed in various sizes and specifications to suit different application scenarios.
- working principle
- The working principle of the submersible sealing ring mainly relies on its elasticity and compressibility to achieve a sealing effect by generating a certain amount of pressure and friction on the sealing surface. When the pressure between the two sealing surfaces increases, the elasticity and compressibility of the sealing ring cause the sealing ring to fit more closely on the sealing surface, thereby preventing liquid leakage.
- Features and Benefits
Diving seals have the following features and advantages
(1) Good sealing performance: It can effectively prevent the leakage of water and other liquids and ensure the normal operation of diving equipment.
(2) Strong pressure resistance: able to maintain sealing performance under higher pressure and adapt to deep water environment.
(3) Corrosion resistance: It can resist corrosion from water and other liquids, ensuring a long service life.
(4) Easy installation: Usually designed with various sizes and specifications, it is convenient for users to select and install according to actual needs.
(5) Easy maintenance: If wear or damage occurs, it can be easily replaced or repaired.
- Application scope
- Diving seals are widely used in various diving equipment, such as submarines, submersible pumps, underwater robots, etc. At the same time, submersible sealing rings are also widely used in chemical industry, petroleum, water treatment and other fields.
- Classification and naming
- According to different application scenarios and material selection, diving seals are classified and named in various ways. Common classification methods include: according to the material, they are divided into rubber sealing rings, silicone sealing rings, polyurethane sealing rings, etc.; according to the shape, they are divided into circular sealing rings, annular sealing rings, O-shaped sealing rings, etc.; according to the use occasion, they are divided into underwater pumps. Seals, underwater valve seals, underwater pipeline seals, etc. When naming, factors such as material, shape, and usage occasions are usually considered.
- Performance requirements
- Since the working environment of diving equipment is relatively complex and harsh, the performance requirements for diving seals are also relatively high.
- It mainly includes the following aspects:
(1) Good sealing performance: It can effectively prevent liquid leakage under various pressure and temperature conditions.
(2) Pressure and temperature resistance: able to maintain stable performance under higher pressure and temperature.
(3) Corrosion resistance: It can resist the corrosion of water and liquid, ensuring a long service life.
(4) Aging resistance: able to maintain the stability of material properties during long-term use.
(5) Low friction coefficient: The friction force generated during the friction process should be small to reduce wear on the sealing surface.
(6) Anti-adhesion: It can effectively prevent the adhesion of water and other liquids and ensure good sealing effect.
Selection method
When selecting a diving seal, comprehensive considerations need to be made based on actual application scenarios and needs. It mainly includes the following aspects:
(1) Choose the appropriate material and shape according to the use occasion.
(2) Choose the appropriate size and specifications according to actual needs.
(3) Consider the impact of parameters such as operating environment and pressure on the performance of the sealing ring.
(4) Consider the convenience of later maintenance and replacement.
In short, as an important sealing component, diving sealing rings play a key role in diving equipment. Understanding its material, structure, working principle and performance requirements will help you better select and use diving seals.
Okay, let’s continue to introduce another kind of seal.
Expansion joint
An expansion joint is a seal used to compensate for thermal expansion and contraction of pipes. They are usually made of rubber materials, are corrosion-resistant and high-temperature resistant, and can be widely used in fields such as chemical engineering and petrochemical industry.
3. Application areas
Corrosion-resistant rubber seals are widely used in chemical, petrochemical, pharmaceutical, food processing, electric power and other fields. They can be used to seal pipes, valves, pumps, pressure vessels, reactors and other equipment to ensure the safe operation of equipment in corrosive media.
4. Key performance requirements
The key performance requirements of corrosion-resistant rubber seals include corrosion resistance, high temperature resistance, pressure resistance, wear resistance and sealing performance. Corrosion resistance requires that the seals will not corrode or deform when exposed to corrosive media; high temperature resistance requires that the seals can maintain good elasticity and sealing properties in high temperature environments; pressure resistance requires that the seals can withstand high pressure without leaking ; Wear resistance requires that the seal is not prone to wear or failure during long-term use; sealing performance requires that the seal can provide a reliable sealing effect to ensure that the medium does not leak.
To sum up, corrosion-resistant rubber seals are seals made of corrosion-resistant rubber materials. They have excellent corrosion resistance and can provide reliable sealing effects in various chemical media and solvent environments. Common corrosion-resistant rubber seals include O-rings, square seals, submersible seals and expansion joints. They are widely used in sealing needs in chemical, petrochemical, pharmaceutical, food processing, electric power and other fields. When selecting corrosion-resistant rubber seals, you need to consider key performance requirements such as corrosion resistance, high temperature resistance, pressure resistance, wear resistance and sealing performance of the material. The correct selection and use of corrosion-resistant rubber seals can ensure the safe operation of equipment in corrosive media.
