Sulphuric Acid (H₂SO₄) service
Service Selection
Diaphragm Valves for Sulphuric Acid (H₂SO₄) Service
Which diaphragm valves configuration suits Sulphuric Acid (H₂SO₄) (H₂SO₄), in which material, to which standard — from real service data, with the pitfalls flagged.
Which diaphragm valves for Sulphuric Acid (H₂SO₄)?
Diaphragm valve (PTFE/EPDM) - No stem packing contact with fluid - ideal for leakage-sensitive service Typical service window: 0.5–25 bar (7–360 psi) - process dependent, Ambient to 80°C typical; up to 200°C in some processes.
Recommended Configurations
Diaphragm valve (PTFE/EPDM)
No stem packing contact with fluid - ideal for leakage-sensitive service
Body Material for Sulphuric Acid (H₂SO₄)
Rated from real compatibility data - click any material for the full decision page.
Governing Standards for Sulphuric Acid (H₂SO₄) Service
What to Avoid in Sulphuric Acid (H₂SO₄) Service
- Bronze or brass-bodied valves
- Standard SS 316 for concentrated acid above 20%
- Rubber-lined valves (except EPDM in specific concentrations)
Service Considerations
- Always design for double containment or secondary containment
- Emergency shower and eyewash must be immediately accessible
- Full-bore valves preferred to minimise turbulence and localised attack
- Dilution point design must prevent acid-in-water splashback
- ATEX rating required where sulphur vapours present
Other valve types for Sulphuric Acid (H₂SO₄)
Diaphragm Valves for other services
Diaphragm Valves for Hydrochloric Acid (HCl)Diaphragm Valves for Phosphoric Acid (H₃PO₄)Diaphragm Valves for Nitric Acid (HNO₃)Diaphragm Valves for Slurry - Abrasive Pulp / Mineral SlurryDiaphragm Valves for Demineralised Water (DM Water / Deionised Water)Diaphragm Valves for Ethanol / Industrial Alcohol (C₂H₅OH)Diaphragm Valves for Urea Solution (Carbamide / DEF / AdBlue)Diaphragm Valves for Acetic Acid (CH₃COOH)
Reviewed by Process Engineering, Vajra Industrial SolutionsDiscipline: Process & Fluid Service EngineeringLast reviewed: 20 June 2026
Connected Engineering
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