OM-6 sun yeh electric control valve actuator

Space 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 above 35℃/95℉. However, when the temperature varies much from day to night or between summer and winter, heater and thermostat (25±5℃/77±9℉) are recommended.

Heater thermostat

The option can switch the heater off when the temperature inside the actuator is over 25℃/77℉.

Additional 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.

OM-2~OM-13,OM-F,OM-G

Current position transmitter

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 controller

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
The pictures are based on AC 110/220V

75% duty cycle (IEC standard)

The option is suggested for higher starting frequency.

OM-2~OM-8：75%duty cycle
The picture is based on AC 110/220V

Potentiometer unit

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 filed 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 actuators and must be ordered with actuator.

Torque switches

The option can provide over-load protection. It is available for OM-2 to OM-13,OM-F,OM-G actuators, and must be ordered with actuator.

Time Delay Controller

The option can adjust the actuator speed (running time) from standard to 30s, 60s and so on (Max. 200s) according to user’s need. It is available for OM-2 to OM-13, AC 220V,1-PH and OM-2 to OM-8, 110VAC actuators.

Chain wheel

The option can convert the hand-wheel override to a chain driven override in application of actuator mounted at a distance above the floor. It is available for OM-2 to OM-13,OM-F,OM-G actuators.

Wiring box

the option can be connected all wires by the user without removing actuator cover and it is available for OM-2 to OM-13,OM-F,OM-G actuators.

Coupling wiring

when a set of control wire or switch needs to control two or more actuators at the same time.

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 environment.

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 floating control.

SS316

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:

IP 68(7m, 72 hrs).

Standard: IEC 60529 Edition 2.1: 2001.