Type 28VL Dry Gas Seals | Compressor Seals | John Crane

Type 28VL

Non-contacting Gas Seal for Vaporizing Liquids

Utilizing proven spiral groove technology, the Type 28VL harnesses the rotational energy of the pump shaft to vaporize the process fluid at a controlled rate, creating a stable gas film that lubricates the seal faces. Typical problems, such as dry-running wear, vapor lock in the seal chamber and "face popping" (which can lead to catastrophic failure of conventional wet seals), are eliminated by the Type 28VL non-contacting face technology.



  • California Residents: PROPOSITION 65 WARNING
  • Extended wear life
  • Outstanding reliability
  • Reduced power consumption
  • Zero process contamination
  • Reduced emissions

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