Tin tức

How to change spring return damper actuator from fail closed to fail open?
05/09/2023

Nenutec spring return actuators can be used to fail open position or fail closed position...

What is fire and smoke damper?
05/09/2023

Fire damper Fire damper is a device installed in ducts and air transfer opening of...

How many times can i cycle my actuator?
05/09/2023

By using a life cycle testing equipment, Nenutec verifies the design endurance of our actuators....

Can a 0-10 VDC feedback signal be converted to 4-20mA?
05/09/2023

Can the feedback signal be 4-20mA? No, adding a resistor to a voltage signal will...

What information is needed to select a control valve?
05/09/2023

The information needed to know when you select a control valve 1. Characteristics of fluid...

What is a characterized ball valve? What’s difference between ordinary and characterized ball valve?
05/09/2023

Ordinary ball valves are not suitable to be used as modulating control devices. The reason...

What is Kv/Cv? How to calculate Kv/Cv?
05/09/2023

What is Kᵥ? Kᵥ, the flow coefficient in Metric Unit, is the flowrate in cubic...

What is the difference between On/Off, Floating and Modulating Control?
05/09/2023

On/Off Control (2-point control): The basic type of control in a control loop. There are...

How to size a damper actuator?
05/09/2023

Follow the “8 steps” choosing the correct damper by size and functional requirements, takes into...

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