Adalet, a Marmon Company, is a leading manufacturer of explosion-proof enclosure systems and controls. Adalet offers custom modified and standard products. The company holds certification under ISO-9001 International Standards for Quality Management. Adalet markets a broad line of industrial and explosion-proof enclosure systems ranging from junction boxes, control stations, instrument and meter housings, increased safety terminal enclosures, panel boards, motor control, pilot devices, cable fittings, and other accessories. Areas & locations.