About Rubber Sealing Washers
Rubber sealing washers are gaskets used to fill the gap between two or more parts to prevent fluid or gas leakage. It is usually made of rubber, plastic, metal or other materials and has good elasticity and sealing properties.
| Material | NR |
| Temperature | -60～100℃ |
| Tensile strength | 17-25Mpa |
| Hardness | 40-90 Shore A |
| Density | 1.04-1.19g/cm³ |
| Resilience | 50%-85% |
| Elongation rate | 1000% |
| Elastic modulus | 2-4Mpa |
Characteristics
1. Good insulation: Rubber is a good insulating material, so rubber sealing washers can effectively prevent electric shock and electromagnetic interference.
2. Good waterproof performance: The rubber material has high water tightness, which can effectively prevent moisture penetration and protect the equipment from moisture and rust.
3. Good oil resistance: Rubber washers have high corrosion resistance to various oils, greases, solvents and other chemical substances, which can effectively extend the service life of the equipment.
4. Strong adaptability: Rubber sealing washers are suitable for a variety of sealing forms, such as static sealing rings, dynamic sealing rings, etc.; they are also suitable for standardization of various materials, sizes and grooves, and have strong interchangeability.
5. Wide application range: wide temperature application range (-60℃~+220℃), and the pressure can reach 1500kg/cm2 when used in fixed condition (used together with reinforcing ring).
6. High-pressure molding: Sealing washers adopt high-pressure vacuum injection molding, which has small permanent compression deformation, strong extrusion resistance, and long service life.
7. Complete specifications and sizes: Rubber sealing rings have complete specifications and sizes for users to choose from. Rubber sealing rings with the same cross-sectional size (or inner diameter size) have a larger selection range of inner diameter sizes (or cross-sectional sizes), including non-standard sizes.
Application Scenarios
1. Pipeline connection: In the fields of petroleum, chemical industry, water treatment and other fields, rubber sealing washers are widely used in the connection and sealing of various pipelines.
2. Mechanical equipment connection: In various mechanical equipment, rubber washers are often used for connections and seals between mechanical components, such as pumps, valves, compressors, etc.
3. Automobile industry: In the automobile industry, rubber sealing rings are widely used in various components of automobiles, such as engines, braking systems, suspension systems, etc.
4. Aerospace: In the aerospace field, rubber seal washers are used in various aircraft and spacecraft components, such as engines, hydraulic systems, etc.
5. Medical devices: In medical devices, sealing washers are used in various equipment, such as infusion sets, syringes, etc., to seal and prevent leakage.
FAQs about Rubber Sealing Washers
1. Q: What types of rubber sealing washers are there?
A: According to different classification methods, it can be divided into the following types:
Classified by material: It can be divided into natural rubber, nitrile rubber, chloroprene rubber, silicone rubber, etc.
Classification by shape: can be divided into round, square, rectangular, special-shaped, etc.
Classified by installation method: it can be divided into bolt connection, clamp connection, compression connection, etc.
Classified by use: can be divided into hydraulic seals, pneumatic seals, instrument seals, etc.
2. Q: What is the aging performance of rubber sealing washers?
A: Any rubber product has a certain service life, and rubber rings are no exception. Its main aging symptoms are: stickiness, hardening, discoloration, cracking, mildew and other aging damage. For this irreversible natural chemical reaction, the aging speed can only be delayed through protection. Generally, two methods are used: physical protection and chemical protection. Physical protection is electroplating or coating with a protective layer, and chemical protection is adding antioxidants.
3. Q: What is the reason for the surface deformation and cracks of the rubber sealing washers?
A: This kind of problem is mainly caused by unreasonable design or deformation caused by issues such as heat and pressure. Therefore, media factors such as heat should be considered when designing, and then materials with greater pressure resistance should be selected.
