Type RRAL/RREL John crane

O-ring Pusher seals | Heavy-duty Cartridge Seal for Boiler Feed Circuit Applications

Type RRAL/RREL John crane

Features mechanical seal type RRAL/RREL

  • California Residents: PROPOSITION 65 WARNING
  • Type RREL/R is ideally suited to light hydrocarbon services and is a low-emission seal design.
  • Type RRAL/R is used for general hydrocarbon and water service and is qualification tested to API 682.
  • Both designs are available in component or cartridge form and feature a flexible single-spring drive, which provides “soft” drive for start-up, increased misalignment capabilities and increased resistance to corrosion.

Recommended Applications type RRAL/RREL

  • Process pumps
  • Other rotating equipment

About Mechanical seal type RRAL/RREL

Patented single-spring drive to minimize clogging. RRAL/R is an API 682 qualified cartridge design.

Operating range mechanical seal type RRAL/RREL


  • Temperature Limits
    -40°F to 500°F/-40°C to 260°C
  • Pressure Limits
    Vacuum to 70 bar(g)
  • Speed Limits
    4500 rpm