Molded elastomer seals are used for applications at lower temperatures. They have the advantage of dramatically reducing vibrations and noise. Their flexibility allows a large tolerance on different movement operations and facilitating the installation.
|Available materials||Min. temperature and operation limits|
|Viton||-30 °C + 200 °C||-20 °F + 400 °F|
|EPDM||-40 °C + 120 °C||-40 °F + 250 °F|
|Silicone||-65 °C + 250 °C||-85 °F + 482 °F|
|Pure Gum (Natural)||-40 °C + 80 °C||-40 °F + 180 °F|
|Polyurethane||-50 °C + 100 °C||-58 °F + 212 °F|
|SBR||-25 °C + 85 °C||-10 °F + 185 °F|
|Neoprene||-30 °C + 100 °C||-22 °F + 212 °F|
|Nitrile||-30 °C + 85 °C||-20 °F + 185 °F|
Some of these rubbers are available FDA as well as reinforced.
Different mixes of rubbers may be used in the same joint.
In order to permit us to fabricate the expansion joint that will meet your needs, the following points must be valid:
- Inside dimension
- Joint width
- Wall thickness
- Pressure (lb/in2)
- Vacuum (in Hg)
- Axial, radial mouvement
- External influence
- Chemical resistance