API Plan 55
API Plan 55 – Custom External Barrier Fluid System
API Plan 55 is a custom-designed pressurized barrier fluid system for dual mechanical seals, where an external circulation system supplies a clean, pressurized barrier fluid at a higher pressure than the process fluid.
Unlike API Plan 54, which typically uses pumps for circulation, Plan 55 relies on an alternative circulation method, such as gravity, differential pressure, or external force, tailored to the specific application requirements.
API Plan 55 offers a highly flexible and tailored seal support system, making it ideal for complex industrial applications that require custom circulation methods and enhanced reliability
No items found.
Features
How API Plan 55 Works
- A dedicated external system supplies a pressurized barrier fluid to the dual mechanical seal.
- The circulation method is customized, using gravity flow, differential pressure, or external pumps, depending on the system requirements.
- Heat exchangers, filters, and instrumentation can be integrated for temperature control, fluid cleanliness, and performance monitoring.
- The barrier fluid pressure is maintained higher than the process fluid to prevent process contamination.
Benefits
- Customizable Circulation Method – Unlike API Plan 54, Plan 55 allows for alternative circulation techniques tailored to system needs.
- Superior Seal Cooling & Lubrication – Ensures extended seal life, even in high-temperature and high-speed applications.
- Prevents Process Contamination – Keeps hazardous, corrosive, or toxic fluids contained.
- Ideal for Specialized Applications – Used where standard Plan 54 systems may not be feasible.
- Advanced Monitoring & Control Options – Can include pressure, temperature, and flow monitoring for optimized performance.
Drawbacks
- Correct management of the external pressurized barrier fluid system.
Applications
Warning Notes
Related Technical Papers
Applicable Products
No items found.
Why Partner With Us?
Exceptional Customer Service:
We have built a strong reputation for supplying the right product to the right timescale.
