Operational application limits
Temperature NBR: -30 °C to +100 °C
Temperature FKM: -15 °C to +200 °C
Temperature EPDM 70: -45 °C to +130 °C
Temperature VMQ 70: -55 °C to +200 °C

Back-up rings are used in conjunction with O-ring for both static and dynamic sealing applications. They prevent extrusion of the O-ring when it is subjected to high pressures, or when the extrusion gaps are excessive.
Temperature:
-30°C iki + 120°C
Speed:
<0,8m/s
Fluids:
mineral-base hydraulic oils, HL and HLP, HVLP type