Fail Safe Spring Return Electric Actuator

Spring return actuators rely on mechanical energy stored by a spring to.

Fail safe spring return electric actuator.

Spring return electric actuators are used in critical processes to return quarter turn valves to their safe position even with the absence of power. Our exmax product provides a quarter turn spring return failsafe solution. Fail safe spring return electric actuators more simply known as spring return electric actuators are used on linear and rotary valves in a range of applications across nearly all industrial process systems. A non intrusive intelligent fail safe quarter turn actuator for on off and modulation control in fail safe applications.

Do rotork electric actuators have fail safe functionality. When power is supplied the spring mechanism is compressed to store energy for movement. Explosion proof class i division 1 groups c d t4 design weatherproof type 4 4x. There are two types of fail safe electric actuators.

Smart non intrusive electric fail safe quarter turn actuator with mechanical spring return ensures reliable shut down on loss of power or input command. The actuator can be controlled by external controller to open close and stop at any position between 0 and 90 degree and will fail clockwise to the end position on loss of power. Although they serve the same purpose they mainly differ in their operating principle. Device is capable of absolute position detection and configurable speed options.

Once the power is lost or removed the controlled. Rts fail safe mechanical spring return electric actuator. Available in 300 600 1200 and 1800 in lb units in both on off and modulating. Rts fail safe electric actuators with true mechanical spring return for fail safe positioning are designed and field proven for reliable shutdowns on loss of power or signal.

Types of fail safe electric actuators. These types of actuators are used in situations that require valves to automatically and immediately enter a safe position upon loss of power. Spring return electric actuators and battery back up bbu actuators. As the drive shaft rotates a series of springs are compressed or in some styles a spiral spring is tensioned storing energy in the springs.

The electric spring return actuator uses an electric motor to drive a series of gears to rotate a drive shaft counter clockwise or clockwise depending on the desired fail safe position. With no dependency on super capacitor or battery backup this state of the art design is widely. Sun yeh s series spring return electric valve actuators and tunnel damper valve actuator utilizes spring driven pinion and rack mechanism to provide torque ranges from 50n m to 260n m mechanical fail safe quarter turn electric actuators. Our cva cma products and waterproof iqt model through additional battery pack can all provide fail to position functionality.