FKM O-Ring PRODUCTS (VITON, FPM)
CNL O-ring products, rubber o rings, custom O ring gaskets and seals for OEM
CNL seals is the specialized O-ring manufacturer and rubber o-ring products. O-ring is the most common and economic seals. O ring material：FKM/VITON/FPM/FFKM/NBR/HNBR/Silicone... Custom molded products and die-cuts. O ring is suitable to use in static and dynamic applications.
CNL O-ring is the best choice and high quality o-rings for static and dynamic applications.
Features and Purpose of FKM O-Rings
| Main feature | The main purpose |
| Heat-resistant, oil-resistant, chemical-resistant, solvent-resistant; not resistant to ketones, esters and nitrate-containing mixtures. | O ring, diaphragm, box lining, hose, rocket missile, pump parts, etc. Seals for steam, locomotives, diesel engines, and the semiconductor industry. |
What is a FKM O-Ring?
Fluororubber FKM has different trade names on different brands. The FKM brand name of DuPontTM is Viton®, the FKM brand name of American 3MTM is DyneonTM, and the Japanese name Daikin® is DAI-EL.
FKM is a fully synthetic polymeric elastomer material. Compared with other rubber materials, fluorinated rubber has high tensile strength and structural strength in physical properties, high temperature resistance, and static sealing can be used in an environment of 200 degrees Celsius. Long-term work, the instantaneous high temperature can reach 250 degrees Celsius. In terms of chemical resistance, fluorinated rubber has excellent corrosion resistance. For organic solvents, inorganic acids, strong oxidants, and greases are superior to other types of rubber. In addition, fluorinated rubber is superior to other elastomer materials in terms of air tightness, weather resistance, flame resistance, radiation resistance and vacuum resistance.
The finished product of FKM generally refers to the fluorine rubber with 66% fluorine content of the original rubber, which is commonly known as Viton®.
In fact, fluororubber also has high-fluorine (HFKM) finished products, the original rubber fluorine content is between 67-70%, and the perfluorinated (FFKM) finished product, the original rubber fluorine content is more than 70%. Compared with the general fluorine content of FKM, it has stronger chemical resistance and physical properties, but the relative selling price is also high, and it is applied to a field requiring higher use environment.
The Catalyst Oil Seal is dedicated to the research and development of FKM, developing the CNL VT7500K material and making it into:
AS-568A O-ring, JISB2401 P, V, G, S specifications O-ring, oil seal, seals.
CNLVT7500K can be customized according to customer's specifications, color, form, hardness, anti-static or various environmental requirements, we can cooperate with customer production and development. At the same time, we can provide different types of raw material formulas according to the characteristics of our customers' products, and we can develop fluororubbers with special needs in line with our customers.
Contact Us
View O Ring Catalog and Prodcuts
P . G . S . V .JASO. JIS Gm . Ss Type O-rings
O-rings are O-shaped cross-section which is made of elastomeric materials.
- Materials : NBR, HNBR, SILICONE, EPDM, FKM, FFKM, PTFE……and etc.
- Specialy O-ring specification request : Non-standard size、Hardness、Custon color.
AS568 . METRIC O-Rings
O-rings are O-shaped cross-section which is made of elastomeric materials.
- Standard size : AS, METRIC
- Materials : NBR, HNBR, SILICONE, EPDM, FKM, FFKM, PTFE……and etc.
- Specialy O-ring specification request : Non-standard size、Hardness、Custon color.
Back-up Ring
Back-up rings have no sealing function. High pressure and low hardness apply. It compensates the sealing gap and can use one site or each side of O-ring depending on the Pressure direction. It can support O-ring from migration and extrusion.
O-Ring Size Chart：Standard and Metric.
- Standard size : AS568, P, Gs, JASO, V, Gm, Metric, Ss.
- Materials : NBR, HNBR, SILICONE, EPDM, FKM, FFKM, PTFE……and etc.
- Specialy O-ring specification request : Non-standard size、Hardness、Custon color.
- *O-ring Sizes：Inside diameter ranges
X-Ring
X-Ring is also known as Quad-Ring. The standard grooves are deeper in comparison with O-ring glands. The four lips emerge more sealing capacity. It will not spiral twist in the groove. The diametrical squeeze is lower than with O-rings to reduce friction to make the life longer. It is used in static and dynamic sealing.
O-Ring Materials-VITON,FPM,FKM
Best● Better○ Good△ BadX
| Rubber type (ASTM Abbreviation ) |
Fluoro Carbon Rubber VITON, FKM, FPM |
||
| Chemical structure | Hexafluoropropylene fluoroethylene copolymer | ||
| Main feature | Heat-resistant, oil-resistant, chemical-resistant, solvent-resistant; not resistant to ketones, esters and nitrate-containing mixtures. | ||
| Pure rubber properties | proportion Muni viscosity ML1+ (100℃) |
1.80 ∼ 1.82 65 ∼ 180 |
|
| Physical properties of synthetic rubber | Possible JIS hardness range General temperature range(℃) Special temperature range(℃) Tensile strength (kg/cm2) Elongation (%) Anti-elastic Cracking Wear resistance Bending resistance |
50 ∼ 90 -20 ∼ 200 -30 ∼ 275 70 ∼ 200 500 ∼ 100 △ ○ ● ○ |
|
| Various properties of synthetic rubber | lubricating oil | Engine oil Gear Oil Motor oil Shaft lubricant Refrigeration oil Butter Lithium oil Oyster sauce |
● ● ● ● ● ● ● ● |
| Working oil | Pot shaft oil Oil + Water emulsion system Water + Glycol Phosphate ester Si Brake Fluid Gear oil |
● ○ ○ ● ● △ ● |
|
| Fuel oil | Light oil、kerosene Heavy oil Gasoline |
● ● ● |
|
| Water | Water、Warm water Water vapor、Hot water Antifreeze water Water cutting oil |
○ △ ○ ○ |
|
| Drug |
Hydrochloric acid 20% |
● ● ● X △ △ ○ ● ○ ● X ~ △ X X |
|
| Gas | LPG Urban gas Ozone Freon 12 Freon 22 |
● ● ● ● △ |
|
| Other |
Food Sanitation Law |
● ● |
|
| The main purpose | O ring, diaphragm, box lining, hose, rocket missile, pump parts, etc. Seals for steam, locomotives, diesel engines, and the semiconductor industry. | ||
