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

ターボコンプレッサー用 非接触ガスシール

Type 28EXP: The product for the most challenging and hostile environments with proven and independently audited performance to 425 bar(g). Type 28 compressor dry-running gas seals have been the industry standard since early 1970 for gas-handling turbomachinery. Utilizing John Crane’s patented spiral groove pattern, these seals are non-contacting in operation. During dynamic operation, the mating ring/seat and primary ring/face maintain a sealing gap of approximately 0.0002"/5 microns, thereby eliminating wear. These seals eliminate seal oil contamination and reduce maintenance costs and downtime. Single, tandem and double seal arrangements are available.

Find out about Aura™; the next generation of gas seals from John Crane >

Recherche de documents


  • California Residents: PROPOSITION 65 WARNING
  • Cartridge design
  • Unidirectional or bidirectional capability
  • Single, double-opposed or tandem configuration
  • Robust design with unparalleled field-proven pedigree


Limites de température

-220 °f à 600 °f/-140 °c à 315 °c, en fonction des conditions d’utilisation générales

Limites de pression

6 500 psi(g)/450 bar(g) sur un seul étage

Limites de vitesse

660 pi/s/200 m/s

Limites de taille

13,75 po/350 mm

Applications recommandées

  • Compresseurs centrifuges
Fonctionne avec
Filtre gaz FCF
Filtre gaz FCF
Type 83 Type 83
Type 93FR Type 93FR
Produits similaires
Type 28XP Type 28XP
Type 28VL Type 28VL

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