Type 8620 O-ring Pusher Seals | John Crane Mechanical Seals

Type 8620

Balanced Stationary Multi-spring Dual Mechanical Seal

The seal is suited to a whole host of offshore, refinery and process industry duties. Its robust construction and proven heritage make it ideal for remote pipeline installations.

Features

  • California Residents: PROPOSITION 65 WARNING
  • Silicon carbide mating ring for high face stability and efficient heat dissipation
  • Cranite primary ring for face stability and resistance to abrasion
  • Optional ACR (Armoured Composite Ring) for high strength in reverse pressure operation
  • John Crane LaserFace® technology for increased fluid film stiffness and reduced heat generation under high loads
  • ESR (Elastomer Support Ring) isolates seal faces from component induced distortions and minimise friction
  • Stationary springs are unaffected by centrifugal forces for high speed operation
  • Polymer Support Rings for excellent process compatibility and prevention of hang-up
  • Multi-point injection for effective cooling and minimises asymmetric face distortions

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