Heavy Fuel Oil (HFO / Bunker C / Fuel Oil No. 6) service
Service Selection
Safety & Relief Valves for Heavy Fuel Oil (HFO / Bunker C / Fuel Oil No. 6) Service
Which safety & relief valves 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 safety & relief valves for Heavy Fuel Oil (HFO / Bunker C / Fuel Oil No. 6)?
Safety Relief Valve - Overpressure protection on HFO heaters and steam-traced systems Typical service window: 3–25 barg (fuel oil system operating pressure), 50°C (minimum pumpable) to 150°C (burner inlet temperature).
Recommended Configurations
Safety Relief Valve
Overpressure protection on HFO heaters and steam-traced systems
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)
Safety & Relief Valves for other services
Safety & Relief Valves for Ammonia (NH₃)Safety & Relief Valves for LNG / Cryogenic Natural GasSafety & Relief Valves for High-Pressure SteamSafety & Relief Valves for LPG - Liquefied Petroleum GasSafety & Relief Valves for Nitrogen (N₂)Safety & Relief Valves for Liquid Nitrogen (LN₂)Safety & Relief Valves for Argon (Ar)Safety & Relief Valves for Propylene / Propene (C₃H₆)
Reviewed by Process Engineering, Vajra Industrial SolutionsDiscipline: Process & Fluid Service EngineeringLast reviewed: 20 June 2026
Connected Engineering
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