HUNGER support rings are mostly used with static O-Ring seals. They reliably prevent gap extrusion of O-Rings under pressure load.
Due to the geometry of the support rings (profile L and C), deformation of the O-Ring produces a radial load component which ensures that any gap is totally bridged. The profile and thickness of the back-up ring
ensures that even at extreme pressures the O-Ring is prevented from extruding.
|Standard||PTFE, POM, PA|
|Pressure [bar]||Temperature Range [°C]||Sliding Speed [m/s]|
|Standard||630||-30 … +100||–|
|Design Hints Surface Finish|
|Ra [µm]||Rt [µm]|
|Groove Base||0.8||≤ 6.3|
|Groove Sides||3.2||≤ 15|