corrosiveHClCAS 7647-01-0
Valves for Hydrochloric Acid (HCl) Service
Hydrochloric acid is extremely aggressive to most metals. HCl attacks carbon steel rapidly at all concentrations. Rubber lining and PTFE are the primary defences. Chloride-containing service also eliminates most austenitic stainless steels due to chloride stress corrosion cracking (Cl-SCC).
Pressure Range
Atmospheric to 16 bar
Temperature
Ambient to 60°C typical
Industries
Chemical, PVC/chlorine production, Metal pickling
What valves are used for Hydrochloric Acid (HCl) service?
PTFE-lined ball valve are recommended for Hydrochloric Acid (HCl) service: Gold standard for HCl - inert lining, no metal contact with fluid.
Key Properties - Hydrochloric Acid (HCl)
- Attacks carbon steel at all concentrations
- Causes Cl-SCC in austenitic stainless steels (304, 316)
- Highly corrosive vapour phase
- Rubber lining (natural rubber, EPDM) is highly resistant
- PTFE is chemically inert to HCl
Vajra Industrial Solutions manufactures and supplies valves for Hydrochloric Acid (HCl) service — including ptfe-lined ball valve — in corrosion-appropriate materials selected for the operating conditions described here, with full material and test documentation.
Need valves for Hydrochloric Acid (HCl) service?
Send your fluid conditions — we'll recommend the right valve, material and standard, with a 24-hour quote.
Material Compatibility - Hydrochloric Acid (HCl)
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 | Not Recommended | Rapid attack at all concentrations. |
| SS 316L | Not Recommended | Chloride SCC risk is severe. Avoid. |
| Hastelloy C-276 | Excellent | Best alloy choice for all concentrations. |
| Hastelloy B-3 | Excellent | Superior to C-276 for reducing HCl environments. |
| PTFE-lined | Excellent | Inert to all HCl concentrations. |
| Rubber-lined (natural rubber) | Good | Good up to ~35% HCl at ambient temperature. |
| PVDF-lined | Good | Good resistance below 70°C. |
| Duplex 2205 | Not Recommended | Chloride SCC risk. |
Recommended Valves
PTFE-lined ball valve
Gold standard for HCl - inert lining, no metal contact with fluid
Full selection guideDiaphragm valve (PTFE)
No stem packing leakage path - critical for toxic HCl service
Full selection guideValves to Avoid
Carbon steel or ductile iron bodied valves
Any SS 304 or 316 in contact with fluid
Bronze, brass, copper alloys
Valves without full PTFE or rubber lining in wetted areas
Special Considerations
Applicable Standards
Shop Valves for Hydrochloric Acid (HCl) Service
Other Fluid Services
Hydrochloric Acid (HCl) 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 Hydrochloric Acid (HCl) Service?
Tell us your fluid, pressure, and temperature — we'll recommend the right valve, material, and standard, with a 24-hour quote.