Corrosion resistant valves – Erreesse
Corrosion resistant valves: Chlorides, wet acid gas and wet sour gas service
Process corrosive fluids are all those containing even minimum concentration of Sulfuric Acid (H2SO4), chlorides, wet acid gas (with Carbon Dioxide, CO2) and wet sour gas (with Hydrogen Sulphide, H2S). Corrosion resistant alloy (CRA) materials, overlays or PTFE lining (Halar coating) on exposed pressure containing & retaining components should be considered to prevent the integrity of the valve and minimize the possibility of failures and leakage. Materials for sour service (Hydrogen Sulphide, H2S) shall be also conform to NACE MR0175 (ISO 15156) or NACE MR0103 if specified for refinery service.