Valve motorized multi turn actuator electric motors ST14

Bernard intelligent electric actuator is the result of the combination of our company’s production, study and research, adopting national and domestic technology. It absorbs Bernard Company’s 25 years experience of producing electric actuator. It is a new generation intelligent electric actuator on the basis of original products of Bernard actuator.

Multi-turn intelligent integration electric actuator can be used for control various of valves, like gate valve, globe valve, high temperature and high pressure valve, desuperheating water valve and other rotate valves with 0-360° rotation, and the torque is 60~6000Nm. Explosion-proof Grade : IP67.

ST14 muti-turn electric actuator has archieved an excellent reputation over the years in this market thanks to a range of actuators providing the following features:

Compact construction with a high output torque 

Self-locking gear train to maintain the position of the valve when the actuator is de-energized

Very good resistance to vibrations

Very simple settings - no specific tool required

Adjustable mechanical travel limit stops to prevent overtravel

Removable drive socket for easy machining

Emergency handwheel and mechanical position indicator provided on all actuators as a standard

3-phase power 380v, 50Hz

Single phase power 220v, 50Hz

ST14 installation size drawing

1. Easy limit adjustment

2. Self-locking at all speeds

3. Continuous gear transmission between motor and valve

4. Excellent vibration resistance on main mechanical components

5. No regular maintain required, gear lubrication is effective throughout its service life

6. High gear system efficiency and low wear

7. High performance and low noise

Hand wheel does not rotate during electrical control; automatic manual and motor operation switching.

Product details

The asynchronous motor used on Bernard electrical actuator provides the highest nominal torque ratio on starting, which makes it competent in coping with all difficult situations and frequent starting operations.

1. Asynchronous motor provides high torque on starting

2. Motor overload protection

3. Motor overheat protection

Motor insulation grade F

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ST+RS series quarter-turn electric actuators

 ST+VE Linear-turn electric actuators