VICKERS-KBFDG5V-7-2C150N85-EX-M1-PH7-H1-

Explosion-proof rated hardware, which is what EX stands for here, is built to operate safely in environments where flammable gases, vapors, or dust might be present. That makes this valve a fit for hazardous-area installations where a standard proportional valve would not be approved for use. Things like chemical processing facilities, certain oil and gas applications, or anywhere that carries an area classification requiring ignition-safe electrical components. The solenoid enclosure on this unit is configured to meet those requirements, so you are not having to retrofit or workaround a standard valve to get it into that kind of environment.