FlexiCase rotary seals are designed to seal the most demanding rotary applications seals. They feature an inner diameter lip that seals dynamically on a shaft and a metal casing on the outer diameter to seal statically with a press-fit into a bore. A gasket is positioned between layers of sealing lips and the casing to seal off the potential leak path and to compensate for differential expansion. Usually, FlexiCase seals are not spring-energized. Consequently, the radial lip contact forces are lower than those of rotary FlexiSeals^®, which allows the seal to function at much higher surface speeds.

Features/Benefits:

• Surface speeds up to 70 meters/secon
• Pressure resistance up to 35 bar
• Temperature resistance from -100 °C to 250 °C and more
• Diameters up to 2,000 mm
• Very good chemical resistance thanks to PTFE sealing element
• Low frictional energy loss and friction-related heating
• Unlimited shelf life thanks to PTFE sealing elements
• Long seal life in dry and abrasive conditions (with wiper elements)
• Single- or double-acting operation
• Uni- or bi-directional rotation

Range of Application:

The combination of a robust metal casing with special PTFE compounds makes the FlexiCase rotary seal suitable for use in conditions of extreme temperatures, surface speeds and chemical attack, such as those typically occurring in compressors, special pumps, hydraulic motors, etc.