What You Need to Know About Pneumatic Actuator
Pneumatic actoators operate with compressed air force. They also work with pressurized gas if needed. Usually used for on-off and proportional control with 90 degree rotation final control elements such as butterfly valve, ball valve and plug valve
Which Points are Important When Choosing a Pneumatic Actuator?
- Double acting / single acting / three position
- The actuator's output torque as Nm at P = 6 bar
- The valve's torque value as Nm that will be connected to the actuator
- Pressure of the line
- Max. min. fluid temperature
- Valve connection size
- Opening and closing frequency of actuator
- Measure the valve connection, and thread / flange connection
- The frequency of opening and closing actuator
- Rotary or linear type actuator
- Working voltage of namur solenoid valve
- Any need of limit switch box
- Control type: on-off or proportional
- The bottom square holes dimension of the actuator shaft
- Valve type: ball, butterfly, plug type
- The viscosity of fluid
- 25% more torque value has to be chosen than the valve actuator torque value
Which Type of Actuator is Suitable to Your Process?
One of the pneumatic actuator types can be ed by considering the application, fluid and environmental factors of the process. After making the ion, the optional features can be checked.
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TORK Pneumatic Actuators Optional Feature
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TORK actuator (standard output) ( -20 +80 C)
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Actuator capable of withstanding high temperatures (-20 +150 C)
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TORK actuator working in very low temperatures (-50 +85 C)
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Epoxy coated actuator body (for aggressive environments)
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TTFE coated actuator body (for aggressive environments)
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AISI 304 stainless steel pinion screwed (for aggressive environments)
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PVC body actuator (for aggressive environments)
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Stainless steel body pneumatic actuators (for aggressive environments)
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ATEX certified pneumatic actuators (for aggressive environments)
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Scotch yoke type actuator (for gas oil application)
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Actuators for food and hygiene (for milk, beverage and filling systems)
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