hazardousCl₂CAS 7782-50-5
Valves for Chlorine (Cl₂) Service
Chlorine is a powerful oxidiser and highly toxic gas (IDLH: 10 ppm). Dry chlorine gas is handled in carbon steel; wet or moist chlorine attacks virtually all metals. Valve selection follows Chlorine Institute Pamphlet 6 recommendations.
Pressure Range
Up to 25 bar for liquid Cl₂
Temperature
-34°C (liquid) to 120°C (gas)
Industries
Water treatment, PVC / chlorinated chemicals, Bleach production
What valves are used for Chlorine (Cl₂) service?
Carbon steel gate/globe valve (dry Cl₂) are recommended for Chlorine (Cl₂) service: Chlorine Institute Pamphlet 6 approved for dry service.
Key Properties - Chlorine (Cl₂)
- Dry Cl₂ (gas or liquid): carbon steel is acceptable
- Wet Cl₂ (>50 ppm moisture): attacks carbon steel rapidly
- IDLH (immediately dangerous to life): 10 ppm
- Strong oxidiser - PVC and PTFE preferred for lining
- Chlorine reacts violently with hydrocarbons and ammonia
Vajra Industrial Solutions manufactures and supplies valves for Chlorine (Cl₂) service — including carbon steel gate/globe valve (dry cl₂) — in corrosion-appropriate materials selected for the operating conditions described here, with full material and test documentation.
Need valves for Chlorine (Cl₂) service?
Send your fluid conditions — we'll recommend the right valve, material and standard, with a 24-hour quote.
Material Compatibility - Chlorine (Cl₂)
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 (dry service) | Good | Acceptable for dry chlorine gas and liquid. Passivates with iron chloride layer. |
| SS 316L | Fair | Wet chlorine - not recommended due to Cl-SCC. Dry service - acceptable. |
| Hastelloy C-276 | Excellent | Best all-round choice for both wet and dry service. |
| PTFE | Excellent | Completely inert. Preferred for seats, seals, and lining. |
| PVC / FRP | Good | For wet chlorine at low pressure. |
| Monel 400 | Good | Good for dry chlorine; not for wet. |
| Copper alloys | Not Recommended | Attacked rapidly. |
| Titanium | Poor | Risk of titanium-chlorine fire at elevated temperature. |
Recommended Valves
Carbon steel gate/globe valve (dry Cl₂)
Chlorine Institute Pamphlet 6 approved for dry service
Full selection guideHastelloy C-276 ball valve (wet Cl₂)
Best corrosion resistance for wet chlorine service
Full selection guideForged globe valve - extended bonnet
Slow-opening design prevents surge in toxic gas service
Full selection guideValves to Avoid
Valves with copper alloy trim or seals
Titanium-bodied valves in hot service
Rubber-seated valves (chlorine attacks most elastomers)
Valves not rated for toxic/lethal service per ASME B31.3 Category M
Special Considerations
Applicable Standards
Shop Valves for Chlorine (Cl₂) Service
Other Fluid Services
Chlorine (Cl₂) 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 Chlorine (Cl₂) Service?
Tell us your fluid, pressure, and temperature — we'll recommend the right valve, material, and standard, with a 24-hour quote.