Profile: Process Development & Control manufactures industrial butterfly valves for HVAC, furnace, power, blower and exhaust air transfer systems, in addition to special service applications. We design and develop flow control valve products. Our product line encompasses a complete shut-off elastomer lined unit as well as a range of controlled, low leakage butterfly valves. We provide a breadth of material compositions, size ranges and temperature levels. We tailor the valve actuation requirements to maximize the efficiency of each valve configuration.