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Aug 14, 20201 min read

What information is needed to select a control valve?

Th e information needed to know when you select a control valve 1. Characteristics of fluid to be controlled - Type of Fluid (Gas, Water,...

Aug 14, 20201 min read

What is Fire and Smoke Damper?

Fire damper Fire damper is a device installed in ducts and air transfer opening of an air distribution or smoke control system designed...

Jul 29, 20201 min read

What is a characterized ball valve? What's difference between ordinary and characterized ball valve?

Ordinary ball valves are not suitable to be used as modulating control devices. The reason for this is that an ordinary ball valve has an...

Jul 16, 20201 min read

What is Kv/Cv? How to calculate Kv/Cv?

What is Kᵥ? Kᵥ , the flow coefficient in Metric Unit, is the flowrate in cubic meters per hour(m3/hr) that will pass through a valve with...

Jul 8, 20201 min read

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

On/Off Control (2-point control): The basic type of control in a control loop. There are only two stages: OPEN or CLOSE. The actuator...

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