O-Rings | Advance Engineering

Orings

HNBR - Hydrogenated Nitrile Butadiene Rubber

HNBR is made via selective hydrogenation of NBR butadienegroups. The properties of HNBR rubber depend on the ACN content which ranges between 18% and 50%, as well as on the degree of saturation. HNBR shows good mechanical properties. HNBR has an operating temperature range between -30 °C (-22 °F) & +140 °C (284 °F), and can withstand up to +160 °C (320 °F) for a short period of time in contact with mineral oils and greases. Special types can be used down to -40 °C (-40 °F).

NBR - Nitrile Butadiene Rubber

The properties of nitrile rubber depend mainly on the ACN content, which ranges between 18% and 50%. In general they show good mechanical properties. NBR has an operating temperature range between -30 °C (-22 °F) and +100 °C (212 °F), but can withstand up to +120 °C (+248 °F) for a short period of time. Suitably formulated NBR can be used down to -60 °C (-76 °F). NBR is mostly used with mineral based oils and greases.

VMQ - Silicone Rubber

VMQ shows excellent heat resistance, cold flexibility, dielectric properties and especially good resistance to weather, ozone and UV rays. Specific VMQ formulations are resistant to aliphatic engine and gear oils, water up to +100 °C (212 °F) and high-molecular-weight chlorinated hydrocarbons. VMQ has an operating temperature range between -50 °C (-58 °F) and +175 °C (347 °F), but can withstand up to +230 °C (446 °F) for a short period of time.

FVMQ - Fluorosilicone Rubber

FVMQ has good heat resistance, very good low temperature flexibility, good electrical properties and excellent resistance to weather, ozone and UV rays. FVMQ shows a significantly better chemical resistance than standard silicone especially in hydrocarbons, aromatic mineral oils, fuel and low molecular aromatic hydrocarbons e.g. benzene and toluene. FVMQ has an operating temperature range between -50 °C (-58 F°) and +175 °C (347 °F), but can withstand up to +200 °C (392 °F) for a short period of time.

FKM - Fluorocarbon Rubber

Depending on structure and fluorine content, FKM materials can differ with regards to their chemical resistance and cold-flexibility. FKM is known for its non-flammability, low gas permeability and excellent resistance to ozone, weathering and aging. Fluorocarbon rubber has an operating temperature range between -20 °C (-4 °F) and +200 °C (+392 °F), but can withstand up to +230 °C (+446 °F). Suitably formulated FKM can be used down to -35 °C (-31 °F). FKM is also often used with mineral based oils and greases at high temperatures.

FFKM - Perfluoro Rubber

Perfluoroelastomers show broad chemical resistance similar to PTFE as well as good heat resistance. They show low swelling with almost all media. Depending on the material, the operating temperatures range between -25 °C (-13 °F) and +240 °C (464 °F). Special types can be used up to +325 °C (+617 °F). Applications for FFKM can be found in the chemical and process industries and in all applications with either aggressive environments or high temperatures.

EPDM - Ethylene Propylene Diene Rubber

EPDM shows good heat, ozone and aging resistance. In addition, they also exhibit high levels of elasticity, good low temperature behavior and good insulating properties.
EPDM has an operating temperature range between -45 °C (-49 °F) and +150 °C (+302 °F), but can withstand up to +175 °C (+347 °F) for a short period of time. Sulfur curedEPDM types have a reduced operating temperatures range
from -45 °C (-49 °F) to +130 °C (266 °F), but can withstand up to +150 °C (302 °F) for a short period of time. EPDM can often be found in applications with brake fluids (based on glycol) and hot water.