The Hallite 335 is an O-ring energised double lip wiper, which is designed to exclude dirt from entering the cylinder and to collect traces of fluid passing the rod seal. The standard design is made from bronze filled PTFE, activated by an NBR O-ring.
A number of other material options can be provided to extend operating conditions . Please ensure that the correct part number is specified for the material option as indicated. The housing sizes listed meet ISO6195D.
NB: A vent between the seal and wiper is recommended to avoid a pressure trap.