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PL 54/55

Lubrication Systems

PL 54/55 lubrication systems provide a positive flow and pressure of pressurized or unpressurized barrier/buffer fluid to dual seals. This seal support system type is typically preferred where flow and heat removal capacity exceeds that of API Plan 52 or 53 seal support systems.

Note: API Plan 54 and 55 designations apply to the barrier/buffer fluid circuit and not to the external system.


  • California Residents: PROPOSITION 65 WARNING
  • Positive flow and pressure provided by top-mounted motor for easy installation and maintenance
  • Excellent heat-removal capacity
  • Pressurized or unpressurized supply of barrier/buffer fluid (API Plan 54 or 55)



10, 20, 30 US gallons/50, 80, 120 liters


1.5-5 gpm/5.5 to 18 lpm

Pressure Limit

3000 psi(g)/200 bar(g)

Recommended Applications

  • Process pumps
Works With
Liquid Filtration Liquid Filtration
Type 2648 Type 2648
Type 3648 Type 3648
Similar Products
PA 53B PA 53B
PA 53C PA 53C

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