BCST your Expert Electric Valve Actuator Supplier in China
BCST Electric valve actuators have integrated design of transmission mechanism.It makes the product with smaller volume and simple appearance. Safe and reliable manual design, fully automatic manual/electrical switching without switching handle
Q90 Type Valve Actuator
Power supply: three-phase AC380V/50Hz for motor, two-phase AC220V/50Hz (ExdⅡBT4) for control.Optional power supply: AC220~660V, 50, 60Hz (to be specified when ordering)
BCST can provide different products supported customers’ requests. From packaging to delivery, you’ll receive BCST’s most detailed service. BCST’s technical team will provide you with professional guidance during usage or installation. With ATEX, ISO, SIL2, RoHS, and CNEX, BCST will provide you high-quality electric valve actuator at a competitive price.
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BCST your One-Stop Electric Valve Actuator Solution in China
Q series electric valve actuator is suitable for small and medium diameter butterfly valves, ball valves and other valves with 90° rotation and other similar equipment. As a stable and reliable angular stroke actuator, it can be applied to various control systems and working environments. The integrated design of the transmission mechanism gives the product a smaller volume and a simple appearance. Safe and reliable manual design, it is fully automatic manual/electric switching without a switch handle. A good protection level can meet the needs of a variety of designs: explosion-proof type, integral switching type, and integral control type.
2. Technical Parameters-Q90 Type Valve Actuator
- Power supply: three-phase AC380V/50Hz for motor, two-phase AC220V/50Hz (ExdⅡBT4) for control.Optional power supply: AC220~660V, 50, 60Hz (to be specified when ordering)
- Ambient temperature：-20℃~+60℃，Optional temperature：-40℃~+70℃
- Relative humidity: not more than 95% (at 25℃)
- Operating environment: ordinary type is used in places without flammable, explosive and highly corrosive media; explosion-proof type is used in ⅡA, IIB class T1-T4 group of explosive gas mixtures.
- Protection level: IP65/67 (special order IP68)
- Motor for working system; rated running time of 10 minutes. f class insulation.
- Anti-corrosion coating: high-temperature baked paint.
3. Installation and disassembly
Allow the valve electric actuator installed in any position, but must pay attention to the motor as far as possible in a horizontal position. The electrical box cover is horizontal or vertical upward state for the recommended installation, which is conducive to lubrication, commissioning, maintenance, and manual operation.
4. Wiring precautions-Q90 Type Valve Actuator
Allow the valve electric actuator to be installed in any position, but must pay attention to the motor as far as possible in a horizontal position. If the electric box key corresponds to the inconsistency, immediately press the stop button, cut off the three-phase power supply, and switch any two of the three-phase power supply.
5. Travel control mechanism adjustment
(1)Rotate the handwheel to make the valve “fully closed”, loosen the screw on the output shaft, turn clockwise to turn off the cam so that it is just to pressure off to the micro switch, and then tighten the screw.
(2)Rotate the handwheel to make the valve “fully open”, loosen the screw on the output shaft, turn the open cam counterclockwise to make it just press the open micro switch, and then tighten the screw.
(3)Manually or electrically open or close the valve, and check whether the valve opens or closes in accordance with the requirements, if not in accordance with the requirements, according to the above steps fine-tuning, until it meets the requirements.
6. Mechanical limiting mechanism adjustment-Q90 Type Valve Actuator
The purpose of the adjustment is to limit the valve switching parts (disk, ball, etc.) in its working stroke (generally 90 °), so that it can not rotate at will.
(1)Make the valve in the “full off” position, the position of screws and limiters as shown in the figure, turn into the off position of the mechanical limiter screws to the top of the screws to contact the limiter, turn the screws back 1 ~ 2 turns, and then tighten the lock nut.
(2)Make the valve in the “fully open” position, according to the above method to adjust the open position of the mechanical limit screws.
7. Torque control mechanism adjustment
The torque control mechanism has been set to the large output torque on the product’s nameplate at the factory, and the user generally does not need to make any adjustments.
8. Error and Troubleshooting Methods-Q90 Type Valve Actuator
The motor doesn’t work.
1.Power line disconnection
2.Control line failure
3.Stroke or torque mechanism failure
1.Check the power cord
2.Ruling out line failure
3.Ruling out travel or torque failure
Output shaft orientation not in accordance with regulations
Power cord sequence reversed
Swap any two power cords
Overheating of the motor
1.Continuous operation time is too long.
2.Mismatch between motor and drive
1.Stop running, cool motor
2.Check the fitting situation
3.Check the power cord
Motor stops during operation.
1.Torque controlling action
1.Increase the set torque
2.Check the valve
Motor won’t stop or light won’t come on when in place.
1.Failure of the stroke or torque mechanism
2.Wrong adjustment of the stroke controller
1.Check the stroke torque mechanism
2.Re-adjust the stroke mechanism