High-Performance Butterfly Control Valves are intended for general service and do not require precision control. They are often used in applications that require larger sizes and high temperatures due to their low cost of maintenance in comparison to other variations of control valves. They excel in constant process load applications.
The control range for high-performance butterfly valves is approximately 30 to 50% open, a third as large as ball or globe-style valves. Butterfly valves have become available with contoured disks that provide an inherent equal percentage flow characteristic, which gives a linear installed characteristic.
A control valve is a power-operated device that modulates the fluid flow rate in a process control system. The control valve assembly has a significant impact on process control performance.
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