Description

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Electric Actuator

product-465-312

Overview

Multi-turn electric valve actuator, referred to as Z-type denso for short, is a driving device for valves to realize opening, closing or modulating control. Z-type denso 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 Actuatord". Multi-turn electric devices 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.

product-432-368

Working Environment And Main Technical Parameters

Power supply: conventional, three-phase 380V (50Hz) special, three-phase 660V, 415V (50Hz, 60Hz)

Single phase 220V, 110V (50Hz, 60Hz)

· working environment:

①Ambient temperature: -20~+60℃ (special order -40~+80℃)

② Relative humidity: <95% (at 25C)

③Protection 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. (see GB3836.1 for details) ④Protection level: IP55 (special order IP65, IP67)

3.3 Duty cycle: short time 10 minutes (special order 30 minutes).

Model Specifications And Main Performance Apecifications

product-574-280

product-515-404

Manual Electric Switching Mechanism

The hand-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. Its structure is shown in Figure 9. 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. Note: 1. Do not pull the switching handle during electric operation! 2. Push (or pull) the handle in the direction of the arrow when switching. If the push is not in place, you should push the handle while turning the hand wheel

product-565-585