
Alkylation Valves in Monel for HF Acid service
Exotica Valves™ manufactures a unique line of alkylation valves aimed at HF acid processes: Exotica HXF™. HF acid processes are amongst the most corrosive in the petrochemical industry, and also amongst the most dangerous for a refinery's on-site operation's staff. Special care is offered to the joints and seals, and AWC II On-Guard acid detecting paint is used around the joints and flanged areas to alert staff to possible leakage. Valves in alkylation service mostly use a Monel® trim, or monel body and trim, though both Hastelloy® as well as Alloy 20 are used as substitutes for monel on some valves, depending on the operating parameters.