Two-piece seal set comprising an elastomer U-ring with an elastomer sealing edge, fabric reinforcement on the contact area and an active back-up ring. This U-cup style buffer ring offers an asymmetric sealing lip profile, chamfered sealing edges, and pressure relieving capabilities to prevent inner pressure entrapment when employed in a tandem sealing system.
BFR Buffer Seal
Buffer seals protect equipment against pressure spikes. The key factor with buffer seals is the thin film of oil it lets past. Two-piece seal set made of PTFE profile ring with one O-ring as a pre-load component.