1. Overview

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(220V) Explosion-proof Electric 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(220V) Explosion-proof Electric 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(220V) Explosion-proof Electric 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(220V) Explosion-proof Electric Valve Actuator

No.	Failure	Cause	Remedy
1	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
2	Output shaft orientation not in accordance with regulations	Power cord sequence reversed	Swap any two power cords
3	Overheating of the motor	1.Continuous operation time is too long. 2.Mismatch between motor and drive 3.Lack phase	1.Stop running, cool motor 2.Check the fitting situation 3.Check the power cord
4	Motor stops during operation.	1.Torque controlling action 2.Valve failure	1.Increase the set torque 2.Check the valve
5	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

9. Connection Dimensions

10. Parameter table-Q90(220V) Explosion-proof Electric Valve Actuator

11. External Dimension

12. Typical wiring diagram-Q90(220V) Explosion-proof Electric Valve Actuator

13. Valve selection table

Model	Soft Sealed Butterfly Valve	Hard Sealed Butterfly Valve	Ball Valve	Ventilation Butterfly Valve
Q05	≦DN65	≦DN40	≦DN32	≦DN100
Q10	DN80~DN100	DN40~DN65	DN40~DN50	DN100~DN200
Q15	DN125~DN150	DN80~DN125	DN65~DN80	DN250~DN300
Q20	DN150~DN200	DN125~DN150	DN80~DN100	DN300~DN400
Q30	DN200~DN250	DN150~DN200	DN100~DN125	DN400~DN500
Q40	DN250~DN300	DN200~DN250	DN125~DN150	DN500~DN600
Q60	DN300~DN350	DN250~DN300	DN150~DN200	DN600~DN800
Q120	DN400~DN450	DN300~DN400	DN200~DN250	DN800~DN1000
Q180	DN500~DN600	DN400~DN450	DN250~DN300	DN1000~DN1200
Q300	DN600~DN700	DN450~DN500	DN300~DN350	DN1200~DN1600