CEJN uses several different seals material in its products, depending on media and environment demands. These are the most common seals in CEJN products.
NBR (Nitrile rubber, Buna-N)
Resistant to water, gasoline, grease, mineral oil, heat, and alkalis. Sensitive to ozone.
Temperature range: -30°C to +100°C (-22°F to +212°F)
Media: compressed air, oil, water
FPM (Fluorocarbon, rubber Viton®)
Recommended for gasoline, oils, and acids. Weather-resistant. Not recommended for hot steam.
Temperature range: -15°C to +200°C (-5°F to +392°F)
Media: chemical, hot air
EPDM (Ethylene Propylene, rubber EPDM/EPM)
Suitable for hot water, alkalines, and acids. Not recommended for mineral oil.
Temperature range: -40°C to +150°C (-40°F to +302°F)
It is not always the seal that decides a product's temperature range. Always check the product's technical data.