How to Choose a Pneumatic Actuator? What Is Considered? Things to Know About PneumaticActuators
Pneumatic actuators work with the compressed air force. It also works with pressurized gas if needed. Generally, 90-degree final control elements such as butterfly valves, ball valves, and plug valves are used for on-off and proportional control purposes.
Features to Consider When Choosing a Pneumatic Actuator
Whether the actuator is double acting/single acting or three position Actuators with 120-degree and 180 degree rotation If it is a hygienic process, choosing the appropriate actuator Actuator torque value at P=6 bar Nm output The torque value of the valve to which it will be connected, in Nm Line pressure max. min. fluid temperature Valve connection size, and threaded/flanged connection Opening and closing frequency of the actuator Rotary / Linear type actuator Namur valve/direction valve operating voltage Will the limit switch box be used? Control type on-off/ proportional Bottom hole square dimension of the actuator shaft Ball/ butterfly/ plug type and number of ways of the valve The viscosity of the fluid Actuator with torque of more than 25% valve torque is selected Single-acting(spring return) actuators should be selected according to the small torque value.
Which Type of Actuator Is Right for Your Process?
One of the pneumatic actuator types is selected by considering the application, fluid, and environmental factors in which the actuator will be used. After the selection is made, the optional features are checked.
Pneumatic Actuator Optional Feature actuator (standard production)( -20 C…+80 C)
Actuator that can withstand high temperature ( -20 C…+150 C)
actuator operating at very low temperature ( -50 C…+85 C)
Epoxy painted actuator body (For aggressive media)
Teflon coated actuator stem (For aggressive media)
AISI 304 stainless pinion gear (For aggressive media)
Actuator with PVC body (For aggressive media)
Stainless steel body pneumatic actuator (For aggressive media)
Scotch yoke type actuators (for gas over oil applications)
Post time: Apr-08-2023