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.

Recherche de documents


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


Limites de température

-40 °F à 400 °F/40 °C à 204 °C

Limites de pression

1 800 psi(g)/124 bar(g) par face de garniture

Limites de vitesse

590 pi/s/180 m/s

Limites de taille

11 po/280 mm

Applications recommandées

  • Pompes de traitement
  • Autres équipements rotatifs
Fonctionne avec
Filtre gaz FCF
Filtre gaz FCF
PD 75 PD 75
Type 83 Type 83
Produits similaires
Type 28AT Type 28AT
Type 28XP Type 28XP
Type 28EXP Type 28EXP

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