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Compared with pneumatic actuators, what are the characteristics of electric actuators, and how many output forms are there?

Compared with pneumatic actuators, what are the characteristics of electric actuators, and how many output forms are there?

The electric drive source is simple and convenient for electric power, with large thrust and torque, and high rigidity. However, the structure is complicated and the reliability is poor, and it is mor ...

What are the three main factors that should be considered when choosing a valve?

What are the three main factors that should be considered when choosing a valve?

The output of the actuator is greater than the load of the valve and is reasonably matched. When checking the standard combination, it is necessary to consider whether the allowable pressure diff ...

Why is the valve stem of the straight stroke control valve relatively thin?

Why is the valve stem of the straight stroke control valve relatively thin?

It involves a simple mechanical principle - The larger the sliding friction, the lower the rolling friction. The valve stem of the straight stroke valve moves up and down, and the packing is slightly ...

Why can't the sleeve valve replace the single or double seat valves?

Why can't the sleeve valve replace the single or double seat valves?

Single-seat valves, double-seat valves, and sleeve valves are equally used today. This is because the sleeve valve only improves the throttling form, stability and reduce the maintenance difficulty co ...

Why is it better to choose hard seal with shut-off valve?

Why is it better to choose hard seal with shut-off valve?

The shut-off valve requires that the leakage is as low as possible. Even though the leakage of the soft-sealed valve is the lowest, and the cutting effect is, of course, good, but it is not wear-resis ...

What are the steps to determine the valve diameter?

What are the steps to determine the valve diameter?

Determine the calculated flow rate (max and min). Determine the calculated pressure difference - select the resistance ratio value according to the characteristics of the system, and then determi ...