Carbon Dioxide (CO₂) service
Service Selection
Ball Valves for Carbon Dioxide (CO₂) Service
Which ball valves configuration suits Carbon Dioxide (CO₂) (CO₂), in which material, to which standard — from real service data, with the pitfalls flagged.
Which ball valves for Carbon Dioxide (CO₂)?
SS 316L ball valve - Food-grade or wet CO₂ - cleanable, zero crevices PTFE-seated ball valve - Supercritical CO₂ extraction systems Typical service window: 1–300 bar (beverage to CCS pipeline), -40°C (liquid CO₂) to 200°C (process).
Recommended Configurations
SS 316L ball valve
Food-grade or wet CO₂ - cleanable, zero crevices
PTFE-seated ball valve
Supercritical CO₂ extraction systems
Body Material for Carbon Dioxide (CO₂)
Rated from real compatibility data - click any material for the full decision page.
Governing Standards for Carbon Dioxide (CO₂) Service
ASME B31.3 / B31.4 (dense-phase pipeline)DNV-RP-F104 (CCS CO₂ pipeline)ISO 23936 (non-metallic seals in CO₂)FDA 21 CFR 178 (food-grade CO₂)
What to Avoid in Carbon Dioxide (CO₂) Service
- NBR-sealed valves in pressure-cycling CO₂ (explosive decompression)
- Carbon steel in wet CO₂ without corrosion inhibitor
- Copper alloys (marginal but not preferred)
Service Considerations
- Explosive decompression of elastomers - test per ISO 23936
- Dense-phase CO₂ ≥73.8 bar - valve body must handle liquid-like density
- Depressurisation creates dry ice - ensure no blockage in valve body or downstream
- CCS service: full traceability, welding inspection, and pigging capability
Other valve types for Carbon Dioxide (CO₂)
Ball Valves for other services
Reviewed by Process Engineering, Vajra Industrial SolutionsDiscipline: Process & Fluid Service EngineeringLast reviewed: 20 June 2026
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