... , 300Lb, 600lb,900Lb,etc) Features:Top-guided Single Seated Control Valves, compact valve body, less component, esay to maintain. ... scope, inherent adjustable ratio is 50:1. The valve actuator use multiple springs structure, and the height reduce 30%, the weight ... Upstream Pressure, Downstream Pressure6. Body, Plug Material7. Input Signal8. With Accessories, Model instruction or not, so that we can help ...