utilityCO₂CAS 124-38-9
Valves for Carbon Dioxide (CO₂) Service
CO₂ is used in supercritical extraction, fire suppression, EOR (Enhanced Oil Recovery), CCS (Carbon Capture Storage), and beverage carbonation. Dry CO₂ is relatively benign; wet CO₂ forms carbonic acid - highly corrosive to carbon steel.
Pressure Range
1–300 bar (beverage to CCS pipeline)
Temperature
-40°C (liquid CO₂) to 200°C (process)
Industries
Beverage / food, EOR (oil recovery), CCS / CCUS
What valves are used for Carbon Dioxide (CO₂) service?
SS 316L ball valve are recommended for Carbon Dioxide (CO₂) service: Food-grade or wet CO₂ - cleanable, zero crevices.
Key Properties - Carbon Dioxide (CO₂)
- Dry CO₂: benign to carbon steel
- Wet CO₂ (CO₂ + H₂O): forms H₂CO₃ - corrosive
- Supercritical point: 31.1°C, 73.8 bar
- Dense phase CO₂ (CCS): high-pressure pipeline service
- CO₂ asphyxiant above 5% - risk in enclosed spaces
Vajra Industrial Solutions manufactures and supplies valves for Carbon Dioxide (CO₂) service — including ss 316l ball valve — in corrosion-appropriate materials selected for the operating conditions described here, with full material and test documentation.
Need valves for Carbon Dioxide (CO₂) service?
Send your fluid conditions — we'll recommend the right valve, material and standard, with a 24-hour quote.
Material Compatibility - Carbon Dioxide (CO₂)
Ratings are indicative. Actual compatibility depends on concentration, temperature, velocity, and presence of contaminants. Always consult corrosion tables or a materials engineer.
| Material | Rating | Notes |
|---|---|---|
| Carbon Steel | Good | Dry CO₂ only. Wet CO₂ corrodes rapidly - specify corrosion inhibitor or upgrade material. |
| SS 316L | Excellent | Standard for wet CO₂ or food-grade CO₂ service. |
| Duplex 2205 | Excellent | CO₂ + H₂S service (EOR wells). Superior to 316L. |
| PTFE | Excellent | Seals and seats - chemically inert to CO₂. |
| Nitrile (NBR) | Fair | CO₂ causes explosive decompression in NBR at pressure cycling. Use HNBR or PTFE. |
| EPDM | Good | More resistant to explosive decompression than NBR. |
Recommended Valves
Valves to Avoid
NBR-sealed valves in pressure-cycling CO₂ (explosive decompression)
Carbon steel in wet CO₂ without corrosion inhibitor
Copper alloys (marginal but not preferred)
Special Considerations
Applicable Standards
Shop Valves for Carbon Dioxide (CO₂) Service
Other Fluid Services
Carbon Dioxide (CO₂) Service — Procurement & Specification
Typical Applications
Available Standards
Material Options
Documentation Available
- -EN 10204 3.1 Material Test Certificates (heat traceable)
- -API 598 hydrostatic shell & seat test reports
- -Dimensional inspection reports
- -Full Manufacturing Data Record (MDR) / data book on request
Inspection Options
- -In-house QC inspection on every order
- -Third-party inspection (SGS / Bureau Veritas / TÜV / DNV) coordination
- -Witness and hold points accommodated on request
Order Quantities
Flexible — from single critical-spare valves to full project lots.
Export
Worldwide export with complete documentation (COO, EUR.1, packing lists) to 20+ countries.
Custom Engineering
Built to your specification — materials, trim, pressure class and special service (NACE, fire-safe, IBR, cryogenic).
Delivery Support
Dispatch from Vadodara, Gujarat with documented lead times and priority handling for urgent requirements.
Engineering references
Connected Engineering
Need Valves for Carbon Dioxide (CO₂) Service?
Tell us your fluid, pressure, and temperature — we'll recommend the right valve, material, and standard, with a 24-hour quote.