Flow Control - Actuator

EFMB-1/2/3 Series Intrgral Type Quarter Turn Electric Actuator

The EOM series electric actuator is a highly efficient motor that uses various mechanisms like multistage reduction gear and worm gear to produce a rotational force, which enables it to rotate valve devices by 90° through its output shaft. It is mainly designed for regulating the opening angle of valves such as ball, butterfly, and plug valves. The EOM integral type has a torque range of 10-20000N.m and does not require clutch operation, making it highly durable and capable of delivering stable, dependable stroke that greatly improves transfer efficiency.

Material of Actuator BodyAluminum Alloy
Control ModeOn-off Type
Torque Range10-30N.m
Running Time11-13s
Applicable Voltage1 phase:AC/DC24V / AC110V / AC220V / AC230V /AC240V
Ambient Temperature-25°C…..70 °C; Optional: -40°C…..60 °C
Anti-vibration LevelJB/T8219
Noise LevelLess than 75 dB within 1m
Ingress ProtectionIP67, Optional: IP68( Maximum 7m; Max: 72 hours)
Connection SizeISO5211
Motor SpecificationsClass F, with thermal protector up to +135°C(+275°F); Optional : Class H
Working SystemOn-off Type: S2-15 min, no more than 600 times per hour start Modulating Type: S4-50% up to 600 times per hour start; Optional:  1200 times per hour
On/off Type SignalInput Signal: AC/DC 24 input control or AC 110/220v input control
Signal Feedback:
1. Close the valve contact
2. Open the valve contact
3. Optional: Closing torque signal contact Local/remote contacts
4. Integrated fault contact 4~20mA to send.
Malfunction Feedback: Integrated fault alarm; Motor overheating;
Optional: Undercurrent protection contact
Modulating Type Signal

Input Signal: 4-20mA; 0-10V: 2-10V
Input impedance: 250Ω (4-20mA)
Output signal: 4-20mA; 0-10V: 2-10V
Output impedance: ≤ 750Ω (4-20mA) Repeatability and linearity within ±1% of full valve stroke
Signal Reverse: Support
Loss Signal Mode Setting: Support
Dead Zone: ≤2.5%

IndicationIndicator of pointer
Other Function

1. Phrase correction (3-phase power supply only)
2. Torque protection
3. Motor overheat protection
4. Moisture – resistant heaters (anti-moisture device)

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