Product Name : L-500 electric linear valve actuators
Thrust:500 kgf / 1100 lbf
Weight:10.5 kg / 23.5 lb
Motor:15 W
Mounting Flange(ISO 5210): F07
Max. Stroke:50 mm / 2 inch
Sun Yeh linear electric actuator with a thrust capacity of 500 kgf (1100 lbf) and a lightweight design of only 10.5 kg (23.5 lb). Featuring a durable IP67-rated enclosure and a continuous mechanical position indicator, the modulating control feature allows for precise operation according to input signals, and adjustable stroke capabilities enable customization to match valve stem strokes. Our linear electric actuator is also equipped with a low-power consumption DC motor and offers versatile voltage options, including 24V AC/DC and 110/220V AC. L-500 linear electric actuator is efficient and adaptable to various systems, if you want to get more details about this linear electric actuator, please contact us.

Enclosure :

  • IP67, NEMA 4X:Water-proof and dust-proof enclosure.
  • Material:Dry powder coating aluminum alloy.

Position Indicator :

  • All models are equipped with continuous mechanical position indicator. The external stem visual position indicator provides easily read and instantly available stem position.

Modulating Control :

  • Actuator can be operated according to input signal and provide the output signal for feedback.
  • Input signal:4-20mA, 1-5V or 2-10V.
  • Output signal:4-20mA or 2-10V.

Adjustable Stroke :

  • Allow users to adjust actuator’s stroke to match valve stem’s stroke. (Refer to the specifications for stroke range)

Motor :

  • All models are equipped with DC motor and provide low power consumption, high duty cycle and efficiency.(1500 starts per hour)

Working Conditions :

  • Ambient temperature:-30℃ to +65℃ / -22℉ to +149℉
  • Relative humidity:30% to 95%

Slow-speed operation :

  • In addition to the standard operating speed, if slower operating speed is needed, please contact with our sales person.

Conduit entry :

  • standard : 1/2” NPT
  • option : M20 or 3/4” NPT

Voltages :

  • 24V AC/DC
  • 110/220V AC
ModelThrustWeightMotor Power
(ISO 5210)
Max. Stroke
L-250 250 550 10.5 23.5 15 F07 50 2
L-500 500 1100 10.5 23.5 15 F07 50 2
L-1000 1000 2205 31.5 70 25 F10 100 4
L-2000 2000 4410 31.5 70 35 F10 100 4
  • CE
  • CSA


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±41℉) are recommended.


Heater thermostat

The option can switch the heater off when the temperature inside the actuator is over 25°C/77°F.

Floating controller

An external switch is applied to provide either two-position or floating control to the actuator.

The picture is based on AC 110/220V.

Floating controller

An external switch is applied to provide either two-position or floating control to the actuator.

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.

Communication Protocols

Modbus (MODBUS and modulating control cannot service at the same time.)