As a partner of Vessco, Duncan Co. has served the Midwest’s industrial markets since 1909. We are your trusted partner for valves, instrumentation, automation, and piping specialties.
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Valve Automation

Can automated valves of just about any type, size, or design. From simple to complex, standard to custom, pneumatic, electric, or hydraulic, we are experts in Valve Automation. All actuated valve packages leave our facility completely assembled, tested, and certified.

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Filtration Products

We offer Fil-Trek and Federal Screens.

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Valves

We offer Ball, Butterfly, Plug, Gate: Apollo/Conbraco (AIS), ABZ, Xomox, ASCO, Jamesbury, Cashco, Trimteck, Flotite, and Hayward.

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Automation

We offer Electric, Pneumatic, Specialty: RCI (Remote Control), Valvcon, USI, and AVCS.

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Instrumentation

We offer Honeywell, Gas Detection, Wika, Pressure Gauges, Thermometers & Seals, Dwyer, and Switches.

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Process Safety Devices

We offer Cashco, VCI Conservation Vents, Flame Arrestors ,  Leser Safety selector valves.

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