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China, Chinese Dungs Valve Drive Device Vd-R-AC (274654) Gas Valve Actuator1 Industrial Products Supplier Manufacturer Details, price list catalog:
China Industrial Products Supplier Manufacturer List Catalog
Pneumatic ComponentPneumatic ActuatorDungs Valve ActuatorGas Valve Actuator
Shenzhen Zhongliweiye Electromechanical Equipment Co., Ltd.
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Product Description The working principle of DUNGS valve drive device VD-R-AC is based on electric drive and mechanical transmission, as follows:Electric drive principle: After VD-R-AC is connected to a power supply of 100-240VAC, 50/60Hz, the internal motor works according to the principle of electromagnetic induction. The rotating magnetic field generated by the stator winding interacts with the rotor winding, causing the rotor to generate electromagnetic torque and rotate, providing power for valve operation.Mechanical transmission principle: The rotational motion of the electric motor is transmitted to the valve through a reduction device. The deceleration device is usually composed of gears and other components, which can reduce the high speed of the electric motor while increasing the output torque to meet the torque requirements for valve opening and closing. VD-R-AC has the characteristics of slow opening (about 7 seconds) and fast closing (less than 1 second), which may be achieved through specific design of the deceleration device and internal mechanical structure. For example, during the opening process, the combination of gear transmission is used to slowly rotate the output shaft, achieving the slow opening function; During the closing process, the valve may be quickly closed through some mechanical linkage device.Principle of valve position indication: VD-R-AC standard configuration includes a mechanical valve position indicator, which may be connected to the output shaft of the valve through a gear transmission system. When the valve is opened or closed, the rotation of the output shaft drives the gear transmission, thereby causing the mechanical valve position indicator to display the current position of the valve.Pressure regulation principle: This driving device can be used in conjunction with a pressure sensor to achieve outlet pressure regulation. When the system pressure changes, the pressure sensor feeds back the signal to the driving device. The driving device adjusts the valve opening through its internal control circuit and mechanical structure, thereby regulating the outlet pressure and keeping it within the set range.Safety protection principle: VD-R-AC may have a torque limiting function. When the torque received on the output shaft exceeds the predetermined value, the internal torque limiting mechanism will act, such as driving the crank to rotate through the axial displacement of the worm, thereby causing the micro switch to act, cutting off the power supply of the motor, and preventing valve damage due to overload.
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