Ferric Chloride presents many difficulties for pumps due to it's ability to corrode most metals including stainless steel, perhaps they only alloy capable of resisting Ferric Chloride is Titanium. Many tecnopolymers such as polypropylene, PVDF and ETFE make food materials for use when pumping Ferric Chloride.
AxFlow's UK wide product range includes Titanium pumps along with numerous plastic and plastic lined pumps that can resist Ferric Chloride.