Process Development & Control LLC is a leading manufacturer of industrial butterfly valves for HVAC, furnace, power, blower and exhaust air transfer systems, in addition to special service applications. PDC offers customers a wide variety of materials for construction options and design specifications. Our experience in design and fabrication of quality valves has gained worldwide customer acceptance.

High Quality Butterfly Damper Valves

Medium Duty Series

Medium Duty Series

This most versatile butterfly valve is available in a wide variety of materials to handle almost any gas or liquid. Various seat designs make this valve an ideal low leakage control product. Sizes: 2" to 24"

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Excel Series

Excel Series

Designed for dirty & high temperature services. This valve is available in a wide range of materials for all of those hard to handle applications. Sizes: 2" to 60"

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Econotrol Series

Thread End Series

The PDC "Econotrol" series butterfly valve is available in sizes from 2" thru 14" in a combination of materials and optional features suitable for most mid-range differential pressures and service conditions.

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