Quarter Turn Electric Actuators / OM Series
OM-2
- Torque: 90 Nm / 800 in-lb
- Motor Power: 40 W
- Manual Override: Handwheel (no clutch or brake required for switching control modes)
- Mounting Flange: ISO 5211 F07/F10
- Speed: 17 sec/90° (110VAC@60 Hz, 30% duty cycle)
- Weight: 10.5 kg / 23.1 lb
| Item | OM-2 |
|---|---|
| Torque (Nm) | 90 |
| Torque (in-lb) | 800 |
| Size of Output Drive (mm) | 🟐22 |
| Depth of Output Drive (mm) | 30 |
| Flange (ISO 5211) | F07 / F10 |
| Run Time (sec / 90°) | 17 |
| Manual Override | Hand-Wheel |
| Weight (kg) | 10.5 |
| Weight (lb) | 23.1 |
Sun Yeh motorized valve actuators are designed for precision and reliability. The OM-2 model provides a torque of 90 Nm (800 in-lb) and is powered by a 40W motor, ensuring optimal performance for valve operations. Its enclosure, made from polyester powder-coated aluminum alloy, meets NEMA Type 4X/5, IP66, and IP67 standards, making it ideal for outdoor applications. The actuator incorporates an insulation class F motor and a built-in thermal protector for enhanced safety and durability. Users can select from a range of voltages and customization options to tailor the actuator to their specific needs.
The OM-2 motorized valve actuator features a planetary gar with a worm drive, providing self-locking capability and preventing backlash. Equipped with a mechanical position indicator and manual override, it ensures ease of operation and high mechanical reliability.
Enclosure
- Polyester powder-coated aluminum alloy.
- NEMA type 4X, 5, IP66 & IP67, intended for outdoor use.
- ISO 12944-2 corrosivity category C3. C4/C5 is optional.
Motor
- Insulation class F.
- Built-in thermal protector prevents the motor from overheating and burnout.
Thermal trip temperature:
AC motor: 125±5℃ (257±9℉)
DC motor: 90±5℃ (194±9℉)
Duty Cycle
- Standard: 30% duty cycle
- Optional: 75% duty cycle
Position Indication
- A mechanical position indicator is located on the top of the actuator.
Manual Override
- Non-clutch design allows for manual operation without needing a lever, clutch, or brake when the power goes out.
- When electric motor is operating, the hand-wheel will not rotate to ensure personal safety.
Gear Train
- High-alloy steel planetary gears are used, and a self-locking function is provided.
- The gears are lubricated for life with high-temperature grease.
Conduit Entry
- Standard: 1/2” PS
- Optional: 3/4” PF, 3/4” NPT, 1/2” NPT, M20
Voltages
- 12V DC
- 24V AC/DC multi-voltage
- 110-120V AC
- 220-240V AC-1 Phase
- 220-240V AC-3 Phase (Modulating control units require the optional Local Control Unit)
- 380-415V AC-3 Phase (Modulating control units require the optional Local Control Unit)
- 440-480V AC-3 Phase (Modulating control units require the optional Local Control Unit)
Travel Angle
- Standard: 0° to 90°
- Optional: up to 270°
Operating Condition
- Ambient temperature: -30℃ to +65℃ (-22℉ to +149℉)
- Relative humidity: 30% to 95%
- CE
- CSA
- UKCA
Anti-condensation heater
A space heater can increase the internal temperature and keep dry inside actuator to avoid the freezing lubricant and moisture causing actuator failure under low temperature or high humidity. Heater is not recommended if the ambient temperature is higher than 35℃ (95℉). However, when the temperature varies much from day to night or between summer and winter, heater and thermostat are recommended.
Heater thermostat
The option can switch the heater off when the temperature inside the actuator is over 25±5℃ (77±9℉).
Auxiliary limit switches
The standard model equips with the 1st & 2nd switches for fully-open and fully-closed. The option consists of the 3rd & 4th auxiliary switches which provide dry contacts for fully-open and fully-closed.
Analog Output
The option can provide 4-20mA output signal for position indicator and etc.
OM-2~OM-13,OM-F,OM-G The picture is based on AC 110/220V
Modulating control
Actuator can be operated according to input signal and provide the output signal for indicator.
Input signal : 4-20mA, 1-5V, 2-10V.
Output signal : 4-20mA, 2-10V.
OM-2~OM-13,OM-F,OM-G, OM-H
The pictures are based on AC 110/220V
Extended duty cycle kit, (including motor, IEC standard)
The control kits are suggested when duty rating needs to be exteneded.
OM-2~OM-8：75%duty cycle
The picture is based on AC 110/220V
Potentiometer
The option can be ordered with On/Off actuators.
The selection has 1k or 5k ohm resistance values.
It provides feedback signal for position indicator.
OM-2~OM-13（1KΩ or 5KΩ）
Local control unit
The option can be used in field control. It provides Local/Remote selection switches and Open/Close selection switches. It is available for OM-2 to OM-13, OM-F, OM-G, OM-H and must be ordered with the actuators
Torque switches
The option can provide overload protection. It is available for OM-2 to OM-13, OM-F, OM-G, and OM-H and must be ordered with actuators.
Time delay controller
The option can adjust the actuator speed (running time) from standard to 30s, 60s and so on (maximum 200s) according to the user's needs. It is available for OM-2 to OM-13, 220 VAC 1-PH, and OM-2 to OM-8, 110 VAC.
Chain wheel drive
The option can convert the hand-wheel override to a chain-driven override in the application of an actuator mounted at a distance above the floor. It is available for OM-2 to OM-13, OM-F, OM-G, and OM-H.
Junction box
The option can be connected to all wires by the user without removing the actuator cover, and it is available for OM-2 to OM-13, OM-F, OM-G, and OM-H.
Isolation relay module
When a set of control wires or switches needs to control two or more actuators at the same time, the module is recommended.
OM-2~OM-13,OM-F,OM-G
Communication protocols
Modbus RTU RS485
Available for:
※ OM-2 to 6, F, G, H, 110-120VAC/1-PH, 30% duty cycle
※ OM-2 to 8, F, G, H, 220-240VAC/1-PH, 30% duty cycle
※ OM-2 to 8, H, 110-240VAC/1-PH, 75% duty cycle
※ OM-9 to 13, 110-240VAC/1-PH, 50% duty cycle
Thermal insulation blanket
The combination of quarter-turn electric actuators with a Thermal Insulation Blanket is designed to remove and re-install easily. It makes the actuator run smoothly even in high-temperature environments.
Working conditions
※ Withstand two hours at 250°C (482°F).
※ Withstand one hour at 300°C (572°F).
Available for OM-A, OM-AM, OM-1 to OM-8 on-off/floating units.
Stainless steel enclosure
Available for IP67 (OM-1)、IP68 (OM-2~OM-6、OM-F & OM-G).
Please contact your salesperson if outline drawings of SS316 material are required.
Water-proof rating:
IP68 (7m, 72 hrs).
In accordance with IEC 60529.
