DZW Electric Valve Actuator
Multi-turn electric valve actuator is a driving device for valves to realize opening, closing or modulating control. It is suitable for gate valves, globe valves, diaphragm valves, plunger valves, throttle valves, water gates, etc. It can be used for rising stem valves and concealed stem valves.
This series of electrical equipment has the characteristics of complete functions, reliable performance, small size, light weight, and convenient use and maintenance. Remote control, centralized control and automatic control can be implemented on the valve. Widely used in electric power, metallurgy, petroleum, chemical industry, papermaking, sewage treatment and other industries.
The performance of this product conforms to the provisions of JB/T8528-1997 "Technical Conditions for Ordinary Electric Valve Actuator". The performance of the explosion-proof type complies with GB3836.1-2000 "Electrical Equipment for Explosive Gas Atmospheres Part 1: General Requirements", GB3836.2-2000 "Electrical Equipment for Explosive Gas Atmospheres Part 2: Flameproof Type "d"" and The provisions of JB/T8529-1997 "Technical Conditions for explosion-proof Electric Valve Actuator "d".
Multi-turn electric actuators are classified according to protection types: outdoor type and explosion-proof type;
According to the control mode: there are intelligent on-off type and intelligent modulating type;
According to the connection type: there are torque type, power station type and thrust type.
Technical parameters
Power supply: conventional, three-phase 380V (50Hz) special,
three-phase 660V, 415V (50Hz, 60Hz)
Single phase 220V, 110V (50Hz, 60Hz)
Working environment:
Ambient temperature: -20~+60℃ (special order -40~+80℃)
Relative humidity: <95% (at 25C)
Protection type, the outdoor type is used in places without flammable, explosive and non-corrosive media. Explosion-proof products include dI and dIBT4. dI is suitable for non-excavation working faces in coal mines, and dIBT4 is used in factories, and is suitable for explosive gas mixtures whose environment is Group IIA and IIB T1~T4. Protection level: IP55 (special order IP65, IP67)
Duty cycle: short time 10 minutes (special order 30 minutes).
Model compilation
Models
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.
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