While both belt and direct drive fans have been around for a long time, the mainstay fan for most industrial fan applications under 250 hp has been the belt drive fan.

What are engineers making time to read? Here is the five-item punch list of the most popular news articles, features, and columns at ESmagazine.com.

What risks are being taken to not measure/monitor/control airflow directly and who is at risk?

Fujitsu General America has developed the new Halcyon circular flow ceiling cassette system. Built to replace the RCLX Large Cassette Series, the company says the new RGLX Series features circular airflow for more consistent air distribution.

Regal Beloit Corporation will debut its Elco® Sentinel™ monitoring system. The system supplies information about a motor’s actual RPM, delivered torque, and internal temperature to help overcome the major challenge facing supermarkets to assure predictive maintenance in the refrigerated display case.

Regal Beloit Corporation has integrated its Genteq® electronically commutated motor products for the refrigeration industry to consolidate product offerings for its customers.

Continental Fan has developed its MFT-S Mixed Flow In-Line Fans, available in 4-, 5-, and 6-inch duct diameters. The company says the fans are ideal for either supply or exhaust ventilation systems and are suitable for air temperatures up to 140ºF.

Greenheck has added two new models of stainless steel backdraft dampers to its backdraft damper line. The SSNM-10 Series is a horizontally-mounted backdraft damper designed to allow vertical airflow up and prevent reverse airflow.