Blog

An EC fan can have power at its terminals and still behave in a way you did not expect. It may run at full speed, ignore the controller, stop below

You reduce a fan from 3,000 RPM to 2,400 RPM and expect airflow to fall by 20%. That part is usually a reasonable first estimate. The surprise comes when pressure

A cooling fan can meet its catalog curve and still fail inside your equipment because the inlet is too close to a wall, cable bundle, filter or heat exchanger. The

A round EC axial fan is not automatically more efficient, and a square EC axial fan is not automatically better for a cabinet. The frame shape mainly changes how the

A fan quotation that says ?200 Pa? is incomplete. You still need to know whether that number is static pressure, total pressure, a maximum value at zero airflow, or the

An axial fan that sounds quiet on the bench can become the loudest part of a machine after you add a grille, filter or close cabinet panel. The fan did

Hold an anemometer in front of a fan and you will get a number. That number is usually air velocity at one small point, not the fan’s total airflow. The

An EC fan can have two wires, a terminal block with a dozen connections, or something in between. That is why a generic color chart is not a safe wiring

When one fan cannot meet the cooling target, adding a second fan seems like an easy fix. You can place the fans side by side so they share the airflow,

A centrifugal fan can look perfectly round and still be out of balance. If the impeller?s mass is not distributed evenly around its axis, rotation creates a repeating force. That

The biggest advantage of a centrifugal fan is not simply that it can move air. It can keep useful airflow when the system pushes back. Filters, compact heat exchangers, long

An axial fan rarely works alone. The fan may provide the airflow, but the guard, filter, grille, mounting hardware and electrical connection determine whether that airflow reaches the equipment safely