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Spring return actuator sizing.
A spring return actuator is a control device that supplies one way powered motion with the impetus for its return stroke being supplied by a spring.
Spring return actuators are usually selected when the automated valve does not need to depend on an external motive power to go to its home open or close position.
A spring return actuator has reduced torque the further it is operated because it is overcoming internal springs that are used to return the actuator to its initial position once air is removed.
Most types of valves will require one of two types of actuators to use.
You will need to know your customer s real air supply available at the valve in order to properly size an actuator.
By properly sizing an actuator to a valve for a specific application.
Belimo spring return actuators extensive torque offering 18 in lb to 180 in lb a vast selection of actuators for a wide range of applications.
For example safety applications like emergency shutdown valves would mostly likely need a spring return actuator.
Dp flow sizing and selection.
The simple solenoid is a good example of a spring return actuator with the solenoid plunger being.
True mechanical spring return providing the most reliable fail safe.
Dure for sizing actuators to flowserve worcester controls ball valves.
The spring return also known as the single acting actuator and the double acting actuator.
Double acting actuators use pressure to create a driving force to.
Double acting operation select the actuator whose torque out.
Dp level configuration assistant.
If the actuator is to be spring return the failure mode fail closed or fail open must also be determined.
For example a spring return door actuator will only open the door under its own power with the door being closed again by a spring arrangement.
Aventics product calculation pneumatics.
Engineering excellence and precision manufacturing has produced a modular product line with reduced overall size requirements and economic savings.
Flow sizing and selection.
Lookup in the spring return torque table in the spring end torque collumn from top down the first actuator size that generates more than 135 nm or 1195 lbf in of re seat torque.