Strainers for Heavy Fuel Oil (HFO / Bunker C / Fuel Oil No. 6) Service
Which strainers configuration suits Heavy Fuel Oil (HFO / Bunker C / Fuel Oil No. 6) (Complex hydrocarbons (C₂₀–C₅₀)), in which material, to which standard — from real service data, with the pitfalls flagged.
Which strainers for Heavy Fuel Oil (HFO / Bunker C / Fuel Oil No. 6)?
Y-Type Strainer - Essential upstream of every HFO control valve and burner gun to remove scale and char Typical service window: 3–25 barg (fuel oil system operating pressure), 50°C (minimum pumpable) to 150°C (burner inlet temperature).
Recommended Configurations
Y-Type Strainer
Essential upstream of every HFO control valve and burner gun to remove scale and char
Body Material for Heavy Fuel Oil (HFO / Bunker C / Fuel Oil No. 6)
Rated from real compatibility data - click any material for the full decision page.
Governing Standards for Heavy Fuel Oil (HFO / Bunker C / Fuel Oil No. 6) Service
What to Avoid in Heavy Fuel Oil (HFO / Bunker C / Fuel Oil No. 6) Service
- Butterfly valves for high-viscosity HFO - disc creates excessive pressure drop
- Non-heat-traceable valve bodies for HFO - asphaltene deposition on cooling
Service Considerations
- All HFO valves and pipelines must be steam-traced or electrically heat-traced - solidification below 30°C
- Globe valve trim must be Stellite-faced - HFO wire-drawing on partial-open erodes soft trim rapidly
- Y-type strainers before every burner control valve - HFO contains char, scale, and wax
- Jacketed valve bodies (double wall with heating medium in jacket) used in critical marine applications
Other valve types for Heavy Fuel Oil (HFO / Bunker C / Fuel Oil No. 6)
Strainers for other services
Connected Engineering
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