Midland Manufacturing

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Midland Manufacturing, located 15 miles north of downtown Chicago, is America s leading manufacturer of valves and level measurement devices for railroad tank cars, marine barges and ISO containers that transport a wide variety of general purpose and pressurized hazardous chemicals. The company s product line includes pressure relief valves, check valves, vacuum relief valves, rupture disc devices, lifter assisters and manway cover plates. The company has been in business for more than 50 years.