DZW Electric Valve Actuator
Multi-turn electric valve actuators are suitable for valves with linear motion of valve discs, such as globe valves, gate valves, throttle valves, diaphragm valves, etc. After being combined with a secondary reduction device, they can also be used for valves with rotary motion of valve discs, such as ball valves, butterfly valves, etc. The common electric valve actuators has built-in basic control units such as stroke and torque, and needs to be equipped with a control box to realize the on-site and remote control operation of the valve. The performance indicators meet the requirements of GB/T24923-2010 "Technical Conditions for Common Electric Valve Actuators". In addition to the built-in basic control units such as stroke and torque, the integral electric valve actuator is also equipped with control components such as control modules and AC contactors. It can directly connect to the power supply to realize the on-site operation of the valve, and can directly receive the switch signal output by the DCS control system to realize the remote control operation of the valve. The performance indicators meet the requirements of GB/T24923-2010 "Technical Conditions for Common Electric Valve Actuators". The modulating electric valve actuator is suitable for the closed-loop control system of the industrial process, and can accurately position the valve by receiving the 4-40mA current signal sent by the control system. The performance indicators meet the requirements of JB/T8219-2016 "Ordinary and Intelligent Electric Actuators for Industrial Process Control Systems".
Technical parameters
· Power supply: Motor voltage: 380V, 50Hz (other voltages and frequencies require special orders).
· Ambient temperature: -40℃~+55℃.
· Relative humidity: ≤95%.
· Signal: Input: 4~20mA DC; Output: 4~20mA DC
· Dead zone: 1%~12.5% adjustable.
· Movement prohibition time: 2S~25S adjustable.
· Working duty: S5 system (intermittent working duty, with electric brake), minimum duty cycle 25%, maximum operation times 1200 times/hour.
· Protection level: IP55
· Does not contain corrosive, flammable, and explosive media
Model compilation
Manual-electric Mechanism
The manual-electric switching mechanism is a semi-automatic switching, the handle needs to be pulled to switch when manual, and it will run automatically when the manual state changes to electric. It consists of a handle, a switching piece, an upright rod, a clutch, a compression spring, etc. When handwheel operation is required, push the handle to the manual direction, and the switching piece will raise the clutch and compress the compression spring. When the handle is pushed to a certain position, the clutch will disengage from the worm wheel and engage with the hand wheel. At the same time, the upright rod stands upright on the end face of the worm wheel under the action of the torsion spring, supporting the clutch from falling. After the switching is completed, the handle can be released and the hand wheel can be used for operation. . When electric operation is required, the motor will drive the worm wheel to rotate, and the upright rod supported on the end face of the worm wheel will fall down. Under the action of the pressure spring, the clutch will quickly move to the direction of the worm wheel, mesh with the worm wheel, and disengage from the hand wheel at the same time, automatically realizing manual operation. transition to electric state.
Applications
Z series multi-turn electric actuators are suitable for opening and closing parts of the linear motion valves, such as gate valves, globe valves, diaphragm valves, gates,water valve etc. For the valve to open, close or regulation. Remote control valve is achieved,the essential drive control and automatic control. They have a full featured, reliable performance, advanced control systems, smallsize, light weight, easy to use and maintain. Widely used in electric power, metallurgy, petroleum, chemical, paper, desulphurization and dust removal, sewage treatment and other industries. Multi turn electric actuators are: outdoor type, explosion-proof,the overall modulating type, the overall type explosion, explosion overall modulating type. By connection type, is also divided intotorque and thrust.
Hot Tags: dzw intelligent multi turn electric valve actuator, China, manufacturers, suppliers, factory, buy, price, quotation, Electric Valve Actuator, High Torque Electric Actuator, Electric Gate Valve Actuator, On Off Type Electric Actuator, Quarter Turn Valve Actuators, Multi Turn Electric Actuators
