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

揮発性液体用 非接触ガスシール

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


Temperature Limits

-40°F to 400°F/40°C to 204°C

Pressure Limits

1800 psi(g)/124 bar(g) per seal face

Speed Limits


Size Limits


Recommended Applications

  • 流程泵
  • 其他转动设备
Works With
PD 75 PD 75
Type 83 Type 83
Type 93FR Type 93FR
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