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A butterfly valve is a valve used for flow regulation in which the disc takes the form of disk. Operation is similar to that of a ball valve. A plate or disc is positioned in the center of the pipe. The disc has a rod passing through it that is connected to an actuator on the outside of the valve. Rotating the actuator turns the disc either parallel or perpendicular to the flow. Unlike a ball valve, the disc is always present within the flow, therefore a pressure drop is always induced in the flow, regardless of valve position.
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API 609 Butterfly Valve
BS EN 593 Metallic Butterfly Valve
MSS SP68 High Pressure Butterfly Valve
Class 600 Triple Eccentric Butterfly Valve
High Temperature Butterfly Valve
High Performance Butterfly Valve
Triple Offset Hard Seal Butterfly Valve
Butterfly Valve,Lug Type Triple Eccentric
Wafer Type Eccentric Butterfly Valve
Butterfly valve for water project
JB/T8527 Hard Seal Butterfly Valve
Butterfly Valve,Electric Operated
Soft Seal Wafer Butterfly Valve
Large Size Lug Butterfly Valve
Butt-Weld Hard Seal Butterfly Valve
Triple Offset Hard Seal Flanged Butterfly Valve
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