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The endless back up ring is used where problems can occur with the rotation of a screwed end cap which on assembly could cause a spiral type to unwind. Endless back up rings are normally manufactured from virgin PTFE.
Double Acting Piston Seals
Double Acting Piston Seal - SPS
Double Acting Piston Seal - DP
Double Acting Piston Seal - DPW
Double Acting Piston Seal - DPDS
Double Acting Piston Seal - SFD
Double Acting Piston Seal - SPW
Double Acting Piston Seal - CS8
Double Acting Piston Seal - CS5/841
Double Acting Piston Seal - RPS
Single Acting Piston Seals