The 750 eccentric plug rotary control valve controls erosive, coking, and other hard-to-handle fluids, providing either throttling or on-off operation. The flanged and flangeless valves feature streamlined flow passages, rugged metal trim components, and a self-centering seat ring. With these components, the 750 rotary control valve combines globe valve ruggedness with the efficiency of a rotary valve. The 750 rotary control valves matched with an automatic or manual actuator, and dependably controls fluids in many process industries.