Fail Safe Electric Actuators

Our exmax product provides a quarter turn spring return failsafe solution.

Fail safe electric actuators.

Or the actuator can be set to fail closed where the actuator moves the valve to the closed position commonly referred to as an emergency shut off valve esv. Once the power is lost or removed the controlled. Failsafe electric actuators for all quarter turn applications spring return fq range actuators ensure automatic opening or closing even without any power supply. The design has the ability to independently adjust motor speed and fail safe shutdown time.

Our cva cma products and waterproof iqt model through additional battery pack can all provide fail to position functionality. Battery backup fail safe electric actuators for emergency shutdown applications. 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. With their new fqm fail safe unit auma offer innovative and safe actuator solutions for automatic operation of valves in case of emergencies making use of stored mechanical energy.

The robust and compact mechanical spring return design can be triggered to fail safe action either on loss of power or signal. The battery recharges automatically when re energized. 1 stored electrical energy that can be used in place of the external power to power the motor. Types of fail safe electric actuators.

When energized the actuator operates the valve normally and at the same time compresses the spring which is held in the loaded position by a solenoid brake. Torques up to 2640 in lbs. A fail safe electric actuator has a way of driving the actuator to the desired fail safe position when external power is unavailable. 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.

The actuator is configurable to either fail close or fail open on loss of power supply. Biffi fail safe electric actuators model efs2000v4 instruction and operating manual 2 device description 2 1 general the efs2000v4 electric fail safe is an electric quarter turn spring return actuator which has the purpose to move the valve in a fail safe state fail open or fail close when the system is de energized. When power is supplied the spring mechanism is compressed to store energy for movement. 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. Corrosion resistant housing and enclosure type 4 4x 6 ip65. There are 2 basic ways of achieving fail safe functionality.