PTFE Piston Rings & Rider Rings

Product Code : 12

Piston rings, rider rings and bands are manufactured in various designs:

The function of PISTON RINGS, mounted on the pistons of lubricated or non-lube (oil free) compressors, are designed to ensure that the gas is compressed and to provide a seal between the piston and the cylinder.

The function of RIDER RINGS, used mainly in oil free or mini-lube compressors, is to support or guide the piston and rod assembly and prevent contact between the piston and the cylinder (risk of seizure).

  • One-piece or segmental straight
  • Angle cut
  • Step cut
  • Twin Ring
  • Double Twin Ring
  • Two Segment
  • Pressure balanced

AEW also custom designs rings and has developed specific combinations for particularly problematic and demanding applications. This has also included numerous successful conversions from lubricated to non-lubricated operation. Pressure balanced rings are available, when deemed appropriate for high pressure applications and piston/rider ring combinations are also available for more specific applications.

Large diameter piston rings up to 47” (1200mm) are custom manufactured for special requirements.