Phosphoric Acid (H₃PO₄) service
Service Selection
Butterfly Valves for Phosphoric Acid (H₃PO₄) Service
Which butterfly valves configuration suits Phosphoric Acid (H₃PO₄) (H₃PO₄), in which material, to which standard — from real service data, with the pitfalls flagged.
Which butterfly valves for Phosphoric Acid (H₃PO₄)?
Rubber-lined butterfly valve - Large bore wet process acid service - industry standard Typical service window: 1–16 bar, Ambient to 100°C.
Recommended Configurations
Rubber-lined butterfly valve
Large bore wet process acid service - industry standard
Body Material for Phosphoric Acid (H₃PO₄)
Rated from real compatibility data - click any material for the full decision page.
Governing Standards for Phosphoric Acid (H₃PO₄) Service
What to Avoid in Phosphoric Acid (H₃PO₄) Service
- Carbon steel valves (high corrosion rate)
- Copper alloys
- Standard SS 304 in concentrated acid
Service Considerations
- Wet process acid: always specify full material compatibility review including fluoride content
- Food/semiconductor grade: full-bore, electropolished SS 316L, zero dead-legs
- Scale and gypsum deposition in wet process systems - ball valves preferred over globe
Other valve types for Phosphoric Acid (H₃PO₄)
Butterfly Valves for other services
Butterfly Valves for Sulphuric Acid (H₂SO₄)Butterfly Valves for Hydrochloric Acid (HCl)Butterfly Valves for SeawaterButterfly Valves for LNG / Cryogenic Natural GasButterfly Valves for Caustic Soda (NaOH)Butterfly Valves for Nitric Acid (HNO₃)Butterfly Valves for Cooling WaterButterfly Valves for Brine / Sodium Chloride Solution
Reviewed by Process Engineering, Vajra Industrial SolutionsDiscipline: Process & Fluid Service EngineeringLast reviewed: 20 June 2026
Connected Engineering
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