These types of actuators are used in situations that require valves to automatically and immediately enter a safe position upon loss of power.
Fail safe spring return electric actuator.
Do rotork electric actuators have fail safe functionality.
Our cva cma products and waterproof iqt model through additional battery pack can all provide fail to position functionality.
Once the power is lost or removed the controlled.
The design has the ability to independently adjust motor speed and fail safe shutdown time.
Based on the standard running direction that the actuator fails clockwise on loss of power.
Although they serve the same purpose they mainly differ in their operating principle.
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.
Available in 300 600 1200 and 1800 in lb units in both on off and modulating.
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.
Smart non intrusive electric fail safe quarter turn actuator with mechanical spring return ensures reliable shut down on loss of power or input command.
Explosion proof class i division 1 groups c d t4 design weatherproof type 4 4x.
A non intrusive intelligent fail safe quarter turn actuator for on off and modulation control in fail safe applications.
Spring return electric actuators and battery back up bbu actuators.
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.
Our exmax product provides a quarter turn spring return failsafe solution.
When power is supplied the spring mechanism is compressed to store energy for movement.
Types of fail safe electric actuators.
Device is capable of absolute position detection and configurable speed options.
The robust and compact mechanical spring return design can be triggered to fail safe action either on loss of power or signal.
Rts fail safe mechanical 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.
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.
There are two types of fail safe electric actuators.