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What are FKM 75 Black Gasket For Filter
FKM 75 black gasket for filter is a sealing gasket for filters, which is made of FKM (Fluoroelastomer) material. This black gasket is mainly used for sealing in the filter to ensure the normal function of the filter during operation.
Special Features
- Material Selection: FKM material is a high-performance synthetic rubber with excellent chemical and high-temperature resistance. It can withstand the erosion of various chemicals and liquids, including acids, alkalis, solvents, etc. At the same time, FKM materials can also maintain their physical properties and elasticity in high-temperature environments and are not prone to hardening or becoming brittle.
- Durability: The FKM gasket for filter has good durability. It can maintain its physical properties and elasticity for a long time and is not susceptible to compression deformation or fatigue damage.
- Various application fields: FKM black gasket for filters can be widely used in different filter systems, including the chemical industry, petroleum, food processing, pharmaceutical, and other fields.
Sealing Principle
The sealing principle of the FKM 75 black gasket for filter is to utilize the elasticity and shape of the gasket to achieve the sealing effect. When the gasket is properly installed on the sealing surfaces of the filter, it fills the sealing gap and forms an effective isolation layer, preventing fluid or gas from leaking or permeating between the sealing surfaces.
The sealing principle involves the following key factors:
1. Gasket material: FKM material has excellent elasticity and resilience and can deform and return to its original shape under pressure. This elasticity allows the gasket to adapt to different surface geometries and provide a seal.
2. Pressure loading: When the filter assembly is tightly assembled, the gasket is compressed and fills the sealing gap due to the applied pressure. The elasticity of the gasket allows it to withstand pressure and maintain a tight seal by exerting a reaction force outward.
3. Surface contact: The effectiveness of the seal depends on the surface contact between the gasket and the filter assembly. The surface of the gasket should be in full contact with the sealing surface to ensure that there are no gaps for leakage.
Application Scenarios
FKM 75 black gasket for filter is mainly used in filter systems to achieve sealing and leakage prevention functions. The following are some common application scenarios of FKM gasket for filter:
1. Industrial filters: FKM 75 black gasket can be used in various industrial filters, including liquid filters, gas filters, and particle filters.
2. Automotive filter: FKM gasket for filter is also used in the automotive field. It can be used to seal filters such as car engine air filters, fuel filters, and oil filters.
3. Hydraulic filter: Filters in hydraulic systems are also typical application scenarios of FKM gasket for filter. Hydraulic filters are used to remove impurities and contaminants in the hydraulic system and maintain the normal operation of the system.
4. Food and beverage filters: In food processing and beverage production, filters play an important role. FKM 75 gasket for filter can be used to seal food and beverage filters to ensure hygienic requirements and leakage prevention during the filtration process.
5. Medical filters: In medical equipment and medical devices, filters are used to remove impurities and microorganisms to ensure the cleanliness and safety of the medical environment. FKM black gasket for filter can be used to seal medical filters to ensure filter performance and effectiveness.
Physical Property Information
| Physical Properties | Rating | Test Method |
| Specific gravity | 1.81 g/cm³ | ASTM D792 |
| Hardness | Rating | Test Method |
| Hardness (Shore A) | 90 | ASTM D2240 |
| Elastomer | Rating | Test Method |
| Tensile stress (100% strain) | 13.4 MPa | ASTM D412 |
| Tensile strength (breaking) | 14.1 MPa | ASTM D412 |
| Elongation (at break) | 110 % | ASTM D412 |
| Aging | Rating | Test Method |
| Rate of change in tensile strength in air (175°C, 70 hr) | -33 % | ASTM D573 |
| Rate of change in ultimate elongation in air (276°C, 70 hr) | 9.0 % | ASTM D573 |
| Rate of change of durometer hardness in air (276°C, 70 hr) | 3.0 | ASTM D573 |
| Rate of change in ultimate elongation | ||
| 23°C, 70 hr, in reference fuel B | 6.0 % | ASTM D471 |
| Durometer hardness rate of change | ||
| 23°C, 70 hr, in Reference Fuel B | 0.0 | ASTM D471 |
| Volume change | ||
| 23°C, 70 hr, in Reference Fuel B | 1.0 % | ASTM D471 |
| Thermal Performance | Rating | |
| Service Temperature | -29 to 232 °C |
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