Hydrofluoric Acid (HF) service
Service Selection
Ball Valves for Hydrofluoric Acid (HF) Service
Which ball valves configuration suits Hydrofluoric Acid (HF) (HF), in which material, to which standard — from real service data, with the pitfalls flagged.
Which ball valves for Hydrofluoric Acid (HF)?
Monel 400 ball valve - Isolation in HF service - Monel wetted parts throughout Typical service window: 1–20 bar, Ambient to 70°C.
Recommended Configurations
Monel 400 ball valve
Isolation in HF service - Monel wetted parts throughout
Body Material for Hydrofluoric Acid (HF)
Rated from real compatibility data - click any material for the full decision page.
Governing Standards for Hydrofluoric Acid (HF) Service
API 751 - Safe operation of HF alkylation unitsASME B31.3 Category M (lethal service)ISO 15848 Class A (zero fugitive emissions)NACE MR0175 / ISO 15156
What to Avoid in Hydrofluoric Acid (HF) Service
- SS 304 or SS 316 in any HF service
- Non-fire-safe or non-bellows-sealed valves
- Any valve with glass or ceramic components
Service Considerations
- Category M lethal service per ASME B31.3 - zero leakage tolerance
- All maintenance requires full acid suit, supplied-air respirator
- ASHRAE/CCPS emergency response plan mandatory
- Remote-actuated valves with fail-safe closure - no manual operation in HF zones
- Calcium gluconate antidote gel must be immediately available in all HF areas
Other valve types for Hydrofluoric Acid (HF)
Ball Valves for other services
Reviewed by Process Engineering, Vajra Industrial SolutionsDiscipline: Process & Fluid Service EngineeringLast reviewed: 20 June 2026
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