Loops in manual mode due to poor-performing rotary valves require constant operator attention. And they cost you process efficiency. You can expect better control from the new Fisher^® Control-Disk™ valve from Emerson. The Control-Disk valve has double the control range of traditional butterfly valves to allow control closer to the target set point, regardless of process disturbances. You can keep your loop in automatic mode. With low maintenance requirements and availability to ship in two weeks, it’s time to put a Control-Disk valve in your loop.