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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.
Single Acting Piston Seal - CP
Single Acting Piston Seal - CPE
Single Acting Piston Seal - P
Single Acting Piston Seal - GP
Single Acting Piston Seal - GPW
Single Acting Piston Seal - CPU
Single Acting Piston Seal - FPC
Single Acting Piston Seal - 851
Single Acting Piston Seal - PDE
Single Acting Piston Seal - PFU
Rod Seals