CPI Compression

Packing and Wiper Rings

Packing Rings

Using a wide range of metallic and non-metallic materials and a variety of designs we offer a large selection of packing rings designed for unidirectional and bidirectional sealing, low-pressure vent and gas purge sealing.

Wiper Rings

We design each and every one of our wiper rings to provide a tight seal that works to keep lubricants where they belong – within the crankcase. In doing so, we can help keep your compressor running longer and more efficiently.


  • Available in metallic and non-metallic materials to fit your needs
  • Custom manufactured to your exact specifications


Basic Packing Ring Designs

  • Single acting seal rings/pairs
  • Double acting seal rings/pairs
  • Backup rings
  • Pressure breakers
  • Pressure breaker with relief slots

Packing and Wiper Ring Materials

  • CPIsSpecial polymer alloys
  • PTFE
  • Thermoplastics
  • Bronze
  • Cast iron

Basic Wiper Ring Designs

  • Tangent cut unidirectional
  • Tangent cut bidirectional
  • Radial cut wiper rings