
Control valves direct flowing gas, steam, water & chemical compounds to compensate for load disturbance and regulate process variables as close as possible to desired set points. EMERSON offers a series of proven and innovative solutions designed to help customers reduce factory maintenance costs, lower investment requirements, and enhance process availability.
Globe control valves utilize linear motion to open and close the valve by moving the closure member in and out on the seat surface, to control the flow rate, pressure, and level of the fluid. Emerson Globe Valves are available in a wide range of valve sizes (NPS ½ through 36), and can address the various types of applications needs: from small to large size, high to low temperature, general purpose to severe applications, delivering high performance and reliability. Emerson Globe Valves are available with a variety of cages or plugs that can be interchanged to modify the inherent flow characteristics to achieve reduced flow, noise reduction, and mitigation or elimination of cavitation.
As a common control valve accessory, the valve positioner delivers pressurized air to the valve actuator so that the position of the valve stem or shaft corresponds to the set point from the control system. Valve positioners are typically pneumatic or analog I/P and are used when a valve requires throttling action. They require position feedback from the valve stem or shaft and deliver pneumatic pressure to the actuator to open and close the valve. EMERSON offers diverse range of valve positioners, including smart positioners, pneumatic positioners and electrical positioners.
As a common control valve accessory, the valve positioner delivers pressurized air to the valve actuator so that the position of the valve stem or shaft corresponds to the set point from the control system. Valve positioners are typically pneumatic or analog I/P and are used when a valve requires throttling action. They require position feedback from the valve stem or shaft and deliver pneumatic pressure to the actuator to open and close the valve. EMERSON offers diverse range of valve positioners, including smart positioners, pneumatic positioners and electrical positioners.