STI-STA O-RING
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.
| Materials | |||
| Support Ring | |||
| Standard | PTFE, POM, PA | ||
| Alternative (on request) | PTFE-Compounds Engineering Plastics | ||
| Application Range | |||
| Pressure [bar] | Temperature Range [°C] | Sliding Speed [m/s] | |
| Standard | 630 | -30 … +100 | – |
| Design Hints Surface Finish | |||
| Surface Quality | |||
| Ra [µm] | Rt [µm] | ||
| Groove Base | 0.8 | ≤ 6.3 | |
| Groove Sides | 3.2 | ≤ 15 | |
