hydraulic o ring material

The material selection of hydraulic O-rings is very important in hydraulic systems as it affects sealing performance, durability, and ability to adapt to different working conditions. The following are some common hydraulic O-ring materials and their characteristics:

Nitrile (NBR):

Characteristics: Nitrile rubber is a universal sealing material with good oil resistance and wear resistance, suitable for many general hydraulic applications.

Temperature range: -40 ° C to+120 ° C.

Viton, FKM:

Characteristics: Fluorine rubber has excellent high-temperature resistance and chemical resistance, especially suitable for high-temperature hydraulic systems and applications in contact with chemicals.

Temperature range: -20 ° C to+200 ° C.

Silicone (VMQ):

Features: Silicone rubber has good high-temperature resistance and low-temperature elasticity, and has good compatibility with many hydraulic fluids.

Temperature range: -60 ° C to+230 ° C.

Polyethersulfone (PU):

Characteristics: Polyethersulfone O-rings are commonly used in high-pressure hydraulic systems and have excellent wear resistance and strength.

Temperature range: -40 ° C to+100 ° C.

Polytetrafluoroethylene (PTFE):

Features: PTFE is a non viscous material with excellent chemical resistance and low friction performance, suitable for some demanding applications.

Temperature range: -200 ° C to+260 ° C.