Description:
Fluorine rubber(FKM/Viton) O-ring is a kind of sealing o-ring materials made by fluorine rubber widely used in automotive, electronics, aerospace, ships and other fields. It has the characteristics of high temperature resistance and high wear resistance, and can adapt to harsh working environment. The advantages of fluorine rubber O-ring not only include its high temperature resistance, but also has very good chemical resistance, resistance to most oils and solvents (except ketones and esters), as well as weather resistance and ozone resistance. The specially customized fluorine rubber materials can even withstand low temperatures up to -40 ° C. These characteristics make the fluorine rubber O-ring a widely used seals in hydraulic and pneumatic systems, whether used alone or as a basic component of the combined sealing device, It can effectively ensure the sealing and reliability of the system.
Fluorine rubber sealing ring is very suitable for high temperature resistance, chemical and corrosion have strict requirements in the industrial and mining environment. Fluorine rubber O-rings are usually produced in black, brown and green colors according to customers’ requirements. The working temperature is from -40 to 240 ° C, and can reach a high temperature of 250 ° C, depending on the polymer structure and the cross-linking system. The chemical resistance and corrosion mainly depends on the fluorine content, and the higher the fluorine content, the better the chemical stability and corrosion resistance.
Due to its excellent physical and chemical properties, I
t is used in chemical plant seals and other occasions requiring high precision, high temperature resistance and high wear resistance.
Feature:
1：High temperature resistance: fluorine rubber O-ring has excellent high temperature resistance and can work stably in high temperature environment for a long time. It can be used in a wide range of temperatures, usually operating between -20 and +250, with special formulations even resistant to low temperatures up to -40.
2：Chemical corrosion resistance: fluorine rubber O-ring has excellent chemical corrosion resistance to most oils and solvents (except ketones and esters), and can maintain stable sealing performance in corrosive media such as strong acids, alkalis and organic solvents.
3：Weather resistance and ozone resistance: fluorine rubber O-rings have excellent weather resistance and ozone resistance, and can be used in outdoor environment for a long time without aging.
4：Good sealing performance: fluorine rubber O-ring has good elasticity and resilience, and can maintain stable sealing performance under various pressures and temperatures.
5：Wide applicability: fluorine rubber O-ring is suitable for a variety of working environments and media, especially for automotive, electronics, aerospace, ships and other high-precision, high temperature resistance, high wear resistance application scenarios.
6: Wear resistance and aging resistance: fluorine rubber O-ring has excellent wear resistance and aging resistance, long service life, low maintenance cost
7: Air tightness and sealing performance : fluorine rubber O-ring in high pressure, high temperature and strong acid, alkali and other harsh environment to keep sealed, will not leak
Size:
AS568, ISO3601, JIS, BS,GB,METRIC,INCH
ID(inner dia): from 1mm to 400mm
C/S(cross section): from 1mm to 30mm
Customized sizes are available
Applications:
Fluorine rubber O-ring is widely used in a variety of harsh working environments because of its excellent high temperature resistance, high wear resistance and chemical corrosion resistance.
Specific applications include:
Automobile industry : fluorine rubber O-ring is used in automobile air conditioning system, oil circuit system, hydraulic system and other parts to ensure the sealing and stability of the system.
Electronic industry : used in electronic equipment requiring high precision sealing to ensure the performance and safety of electronic equipment.
Aerospace industry: fluorine rubber O-rings have important applications in the aerospace field because of their excellent high temperature resistance and chemical corrosion resistance, such as engine power output bearing seal, cylinder liner seal and so on.
Shipbuilding industry : used for sealing parts of ships to ensure the sealing performance of ships in various harsh environments.
Chemical processes and petroleum refining: used in mechanical seals, pumps, reactors, agitators, compressor housings, valves, instruments and other equipment, as seat and stem fillers, diaphragms and gaskets.
Semiconductor manufacturing : used for sealing in inorganic acid media, such as silicon tetrachloride, gallium arsenide, phosphorus oxychloride and other media.
Food and pharmaceutical industry: used in equipment and piping where high hygiene standards are required to ensure product purity and safety.
Aerospace : fluororubber seals can be used under high altitude conditions, such as in the environment below 1.33X10-7pa, which makes fluororubber has a wide range of applications in the aerospace field.
Technical Data Sheet:
| Test Item | Test Condition | Standards | Test result |
| BEFORE AGING |
|
|
|
| HARDNESS | ASTM D412 | NORMAL TEMPERATURE | 72±5 | 72 |
| Test under normal situation | Hardness(Shore-A) |
| Tensile strength(Mpa) | ≥10 | 16.5 |
| Elongation (%) | ≥150 | 19 |
| Density(g/cm3) | / | 2.1 |
| AFTER AGING |
|
|
| Aging-Resistance Testing | Hardness Change(Shore-A) | 250℃×70 HOURS | 0~+10 | 1 |
| Tensile strength Change(%) | >-25 | 8 |
| Elongation Change(%) | >-25 | -10 |
| Compression set（%） | Compression set（%） ASTM D395 | 200℃×22 HOURS | ≤50 | 18 |
| ASTM 1# oil D471 | Hardness Change(Shore-A) | 150℃×70 h | -20 | 1 |
| Oil-Resistance |
|
|
|
|
| No.1 OIL | Tensile strength Change(%) |
| >-40 | 3 |
| Elongation Change(%) |
| >-20 | -14 |
| Volume Change（%） |
| 0-15 | 0 |
| FUEL C OIL D471 | Hardness Change(Shore-A) | 230℃×70 h | -5 | -3 |
| Oil-Resistance | Tensile strength Change(%) |
| >-25 | -12 |
| Elongation Change(%) |
| >-20 | -8 |
| Volume Change（%） |
| 0~+10 | 3 |
The above technical data is only fkm 70sh for reference, We have many different rubber formulas to
meet different customized technical properties requirements.
