Silicone O-Ring PRODUCTS (SI, VMQ)
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:Silicone/VITON/FPM/FKM/FFKM/NBR/HNBR... 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.
O-Ring Types(Custom O-ring Seals / Material)
Silicone O-Ring(SI, VMQ)
With Silicone main chain from silicon (-si-o-si) combined chemical structure. Silicone Rubber O rings features are heat-resistant, cold, non-toxic, with good electrical insulation properties, not resistant to oil, ozone and solvents.
Operating temperature: –65 to +400 °F
Features and Purpose of O-Rings
Main feature | The main purpose |
Heat-resistant, cold, non-toxic, with good electrical insulation properties, not resistant to oil, ozone and solvents. | Use electrical, electronic, medical, food and other seals. |
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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.
PTFE Encapsulated O-Ring
PTFE encapsulated o-ring is silicone or FKM rubber o-ring coated FPA/PFA jacket. These kinds of o-rings have good chemical resistance, low friction and gas permeation.
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-SI,VMQ
Best● Better○ Good△ BadX
Rubber type (ASTM Abbreviation ) |
Silicone Rubber SI, VMQ |
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Chemical structure | Silicone main chain from silicon (-si-o-si) combined |
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Main feature | Heat-resistant, cold, non-toxic, with good electrical insulation properties, not resistant to oil, ozone and solvents. | ||
Pure rubber properties | proportion Muni viscosity ML1+ (100℃) |
0.95 ∼ 0.98 Liquid |
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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 |
30 ∼ 80 -40 ∼ 200 -70 ∼ 300 40 ∼ 100 500 ∼ 50 ● X ~ △ X ~ △ X ~ ○ |
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Various properties of synthetic rubber | lubricating oil | Engine oil Gear Oil Motor oil Shaft lubricant Refrigeration oil Butter Lithium oil Oyster sauce |
● △ ○ △ △ △ ● X |
Working oil | Pot shaft oil Oil + Water emulsion system Water + Glycol Phosphate ester Si Brake Fluid Gear oil |
○ △ △ ○ X ○ △ |
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Fuel oil | Light oil、kerosene Heavy oil Gasoline |
X X X |
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Water | Water、Warm water Water vapor、Hot water Antifreeze water Water cutting oil |
○ △ △ △ |
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Drug |
Hydrochloric acid 20% |
△ ○ △ X X X ○ ● X ~ △ ● X ~ △ ○ △ |
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Gas | LPG Urban gas Ozone Freon 12 Freon 22 |
X △ ● X X |
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Other |
Food Sanitation Law |
● ● |
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The main purpose | Use electrical, electronic, medical, food and other seals. |