SAMSON 3730-2 is a digital electrical valve positioner, commonly used in control valves in the field of process control. "Rated stroke regulating valve process control valve" can be understood as "rated stroke regulating valve process control valve", and the following is a related introduction:
Rated stroke related: SAMSON 3730-2 can adapt to control valves with various strokes. The stroke range can be preset through the DIP switch, and generally supports a stroke range of 3.6-200mm. In practical applications, the rated stroke is an important parameter of the control valve, which determines the movement range of the valve core, and thus affects the control valve's ability to regulate process parameters such as fluid flow, pressure, and temperature. Control valves of different specifications will set specific rated strokes according to process requirements. The 3730-2 positioner can be set to match the stroke requirements of the corresponding control valve to achieve precise control.
Role in process control: As a key accessory of the process control valve, the 3730-2 positioner receives the 4-20mA current signal from the control system and converts it into a corresponding air pressure signal to drive the valve core of the pneumatic control valve and change the flow area between the valve core and the valve seat, so as to adjust the flow of the measured medium and control the process parameters, ensuring that the industrial production process runs stably according to the set process requirements.
Product advantages and application scenarios: The positioner has a built-in microprocessor, high adjustment accuracy, and a final deviation of ≤1%, which can improve the accuracy of process control. At the same time, it has good environmental adaptability, an operating temperature of - 20℃-80℃, a protection level of IP66, and can work stably in a variety of industrial environments. Therefore, it is widely used in process control links in industrial fields such as chemical, petroleum, electric power, and metallurgy, and can accurately adjust various gases, liquids and other media.