electric valve actuator
Product details
technical data
1. Power supply: three-phase four-wire, 380V, 50Hz (special orders can be 415V, 660V, etc., frequency can be 60Hz)
2. Working environment: (If it is explosion-proof, please refer to the instructions of the first-level electric actuator)
2.1 Ambient temperature: -20C-60C
2.2 Ambient relative humidity: ≤90% (at 25C)
2.3 The working environment does not contain corrosive, flammable, and explosive media;
2.4 Protection level IP67
3. Short-time work system, the time is 10 mins;
Adjustment
Since this device needs to be assembled with the valve, the stroke mechanism, torque mechanism and opening indicator mechanism of the electric device must be adjusted before operation after assembly. If the fully open and fully closed positions of the valve are controlled by the stroke mechanism, the torque mechanism does not need to be adjusted. If the fully closed position of the valve is controlled by the torque mechanism or the fully open and fully closed positions are controlled by mechanical limits, the torque mechanism must be readjusted.
1. If the fully open and fully closed positions of the valve are controlled by the stroke mechanism or the torque mechanism, the mechanical limit must be loosened before adjusting the stroke or torque.
2. If the fully open and fully closed positions of the valve are controlled by the mechanical limit and the torque mechanism sends a signal, the adjustment method is as follows: Manually operate the electric device to put the valve in the predetermined position; Adjust the corresponding mechanical limit (striker pin) so that it just hits the output shaft, and tighten the locking nut and cap nut of the striker pin; Adjust the torque mechanism and gradually increase the output torque value until the valve can be turned into place.
product structure
Special motor
The motor for regulating valve is the driving component of the electric actuator, and its characteristic requirements are different from those of general motors. Because the actuator works frequently and is often in the starting working state, the motor is required to have the characteristics of high starting torque, small moment of inertia and low starting current, so that the motor temperature rise will not be too high when the motor is started frequently, and there is enough torque to make the electric actuator move from static to action.
Gearbox and manual switching mechanism
The rgearbox converts the output power of the high-speed, low-torque motor into the power of the output shaft of the low-speed, high-torque actuator. The manual switch is semi-automatic, that is, when it is manual, move it in the direction of the arrow on the switch handle, and it will automatically reset when it is electric.
Stroke control mechanism, torque control mechanism, opening mechanism
The function of the travel control mechanism is to limit the electrical limit position. The torque control mechanism is a protection mechanism designed to protect the actuator and valve. The opening mechanism is used to indicate the opening and closing direction and position of the valve.
applications
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