Information
O-Rings Product Overview
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Product Overview The most common type of static seal is the flexible elastomer O-ring. O-rings provide an affordable seal that in most cases are simple to install and subject to correct material selection, give acceptable life between maintenance checks. Available in a variety of materials to suit every sealing application, fully moulded O-rings are manufactured to several international sizes standards, including BS1806, BS4518, AS568 and ISO 3601. Alternatively non-standard custom sizes, up to 2.5m (8ft) diameter can be produced to specific requirements. |
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| Elastomer | Material Family Designator | Compound Reference | Colour | Hardness °IRHD | Temperature | Application |
|---|---|---|---|---|---|---|
| Nitrile, NBR, Buna N |
NBR | 36624 | Black | 70 | -35 to +110°C -31 to +230°F |
Standard compound with good compression-set values and medium acrylonitrile content for use with hydraulic oils, vegetable oils, animal fats, acetylene, alcohols, water, air, fuels and many other fluids |
| Ethylene Propylene, EPDM, EPM |
EP | 55914 | Black | 70 | -55 to +130°C -67 to +266°F |
Standard, sulphur cured EPDM compound with very good compression set for use with solvents, alcohols, ketones, esters, organic and inorganic acids. Not recommended for animal fats, vegetable or mineral oils. |
| Ethylene Propylene, EPDM, EPM |
EP | 55914PC | Black | 70 | -50 to +150°C -58 to +302°F |
High performance peroxide cured EPDM compound with very good compression-set, steam, ozone and weathering resistance. |
| Silicone, VMQ | SIL | 714177 | Red | 70 | -55 to +230°C -67 to +446°F |
General purpose silicone with excellent physical and temperature resistance up to 220°C. Extremely high and low temperature range for use in air, oxygen dry heat, ozone, hot water to 150°C, and glycol based brake fluids. Silicones are recommended only for static applications. |
| Fluorocarbon FKM, Viton® A |
FPM | 51414 | Black | 75 | -20 to +200°C -4 to +392°F |
General purpose compound with very low compression-set characteristics at high temperatures and chemical resistance to oils, fats, fuels. Suitable for vacuum applications. |
| 51414G | Green | |||||
| Viton® GF | FPM | 514141 | Black | 75 | -10 to +200°C +14 to +392°F |
Original Viton® GF-Terpolymer with improved steam and temperature resistance |
| Perfluoroelastomer, FFKM | FFKM | FFKM-75-162 | Black | 75 | +275°C +527°F |
Broadest range of chemical and temperature resistance for chemical processing industry. Suitable for acids, basics, amines, steam, ethylene oxide and many other aggressive chemicals. |
| FFKM-75-164 | +310°C +590°F |
High temperature compound with superb compression-set characteristics and improved resistance against steam and amines. Very suitable for temperature cycle applications. |