Maxseal is a brand specializing in explosion-proof solenoid valves (ICO series), part of IMI plc's IMI Process Automation division, with actual manufacturing carried out by IMI Thompson Valves Ltd. in the UK. It supplies 2/2, 3/2, and 5/2-way solenoid valves certified to ATEX, IECEx, and SIL 3 standards. The valves are used to actuate equipment in high-risk environments such as oil & gas, offshore, and emergency shutdown (ESD) systems.