O-Rings
The O-RINGS in elastomer have a round shape,vulcanized in tools.
Working
The O-RINGS must prevent the fluid leakage between two metal surfaces so that they must have a radial
compression.This strength combined with the one of the fl uid to be sealed, increased by the pressure, can guarantee a perfect sealing.
Elastomer extruded cord
For static applications it is possible to obtain O-RINGS by using an extruded cord joined with an appropriate glue.
The most common sizes in NBR and FPM elastomers are available ex-stock.
Hot vulcanized O-RINGS
In case of a non standard size, for static applications,O-RINGS can be obtained by using an extruded cord
with an hot vulcanized vacuum operation.Available elastomers: NBR-FPM-MVQ-EPDM-FMQHNBR
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Rubber rings (o-rings) search
You can search by the o-ring's dimensions, then you will be provided with all possible options.
You can search by the o-ring's dimensions, then you will be provided with all possible options.
Manufacturers
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| Types | Hardness | Main characteristics | Temperatures C° |
| NBR (butadiene-acrylonitrile elastomer) |
70 | Good resistance to mineral oils and greases without additives, chlorinated and aromatics.Poor chemical resistance to ageing,weathering and ozone. |
-30°C + 100°C |
| FPM (fluoroelastomer) |
75 | Excellent resistance to high temperatures, to oils and greases, aromatic and chlorinated hydrocarbons. |
-25°C + 200°C |
| EPDM (ethylene propilene elastomer) |
70 | Very good resistance to hot water and steam, to ageing and weathering.Poor resistance to mineral oils and greases. |
-40°C + 160°C |
| MVQ (silicone elastomer) |
70 | Excellent resistance to hight and low temperatures. Excellent flexibility and low friction. Excellent resistance to ageing,weathering and ozone. Poor tensile and tear strength. |
-60°C + 200°C |
| FMQ (fluorosilicone elastomer) |
70 | Good resistance to fuels, mineral greases, oils and synthetic oils. |
-60°C + 180°C |
| FFKM CHEMRAZ® (perfluoroelastomer) |
80 / 90 | Excellent chemical resistance similar to PTFE, excellent heat resistance.Conforms to FDA standard. |
-30°C + 324°C |
| FEPM FLUORAZ® (tetrafluoroethylenepropilene elastomer) |
78 / 90 | Excellent resistance to superheated steam. Conforms to FDA standard. |
-5°C + 260°C |