Product details

TYPE 28AT
Product code : TYPE 28AT
Price : Contact
Describe : Gas Lubricated, Non-Contacting Gas Seal For Turbo Compressors Type 28 compressor dry-running gas seals have been the industry standard since early 1970 for gas-handling turbomachinery. Utilising 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 in./5 microns, thereby eliminating wear.

Description: 28ATGas Lubricated, Non-Contacting Gas Seal For Turbo Compressors

Type 28 compressor dry-running gas seals have been the industry standard since early 1970 for gas-handling turbomachinery. Utilising 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 in./5 microns, thereby eliminating wear.

These seals eliminate seal oil contamination and reduce maintenance costs and downtime.

Single, double opposed, and tandem cartridge seals are capable of handling a wide variety of gas sealing applications in the gas collection/transmission, refining, chemical and petrochemical processing industries.

Description: GasSeal_28AT


Design Features 

  • Mating Ring
    Shrouded mating ring prevents secondary damage in the event of a mating ring fracture.
  • Leakage
    Low-level leakage can be vented to a safe area, used as fuel to drive equipment, or returned to process via a low-pressure ejector.


Quick Specs - Refer to datasheet for full specification and limits

Temperature

140 C to 315 C/-220 F to 600 F

Pressure

Up to 450 BARG/6,500 PSIG across single stage

     

Speed

Up to 200 m/s / 660 fps

     

Size

Up to 330 mm/13 in.

     

Download Gas Seal Type 28AT (PDF)

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