Dyna-Flo Model 570 Control Valves
These segmented-ball style rotary control valves are available in wafer style with ANSI Class 150-600# ratings, or with integral flanges in Class 150 and 300. The wafer construction is available is sizes 2”, 3”, 4”, 6”, and 8” and will mate ASME with Class 150, 300, and 600 raised face flanges. The flanged construction is available in sizes 2”, 3”, 4”, 6”, 8”, 10”, 12” in Class 150 and 300.
The straight through unrestricted flow path provides higher capacity than globe style valves. A splined shaft provides accurate control in throttling operations and provides for several options in using power operated or manual actuators. Valves are used in both throttling and on/off control of liquids or gases. A wide variety of controllers and accessories can also be attached.
The standard actuator for the 570 Series is the Dyna-Model DFR spring-diaphragm actuator. Optional actuators are used for both throttling and on-off service, such as the Dyna-Flo D-Force pneumatic actuators in double-acting or spring return design, the Rotork CVA electric throttling actuator, the Rexa electro-hydraulic throttling actuator, and virtually any other commercially available product.