Engineering Library
Engineering documentation, calculators and product files - built for HVAC engineers, system integrators and installers.
Learn what static pressure means in ventilation systems, how it affects airflow, and how to choose a fan based on both airflow and system resistance.
Learn how metal louvered exhaust fans work and how the WF Series helps ventilate warehouses, factories, barns, and other large spaces.
Learn how bathroom and toilet ceiling exhaust fans work, how air is exhausted through ducts, and how to choose the right fan size and airflow.
Compare 4, 6, and 8 inch EC inline duct fans and learn how to choose the right size based on airflow, static pressure, duct size, and application.
Learn about the benefits and applications of EC inline duct fans, including energy efficiency, speed control, and 4, 5, 6, and 8 inch fan sizes.
CFM measures how much air a ventilation fan can move per minute. Learn how CFM and static pressure affect fan performance, with the DF200-M 8-inch EC inline duct fan as a real example.
Learn what CE, UL, ETL and RoHS mean for ventilation fans, and understand which certifications may be required for different export markets.
Compare inline duct fans vs exhaust fans. Learn the differences in installation, airflow, static pressure, and applications to choose the right ventilation fan.
If you are dealing with long duct runs, multiple rooms, or spaces where a traditional surface-mounted fan is impractical, an inline fan is often the only solution that delivers consistent, powerful airflow.
Step-by-step CFM sizing using NFPA 96 hood capture velocity and equipment heat load. Includes a worked example for a 12 ft canopy hood over a 6-burner range.
Three-year TCO model comparing EC and AC fans across a 2,000 m² hydroponics facility. Payback typically lands inside 18 months at $0.12/kWh.
Vibration isolators, service-loop slack, ducting alignment and access-panel placement for inline fans in <300 mm plenums.
Lubrication intervals, bearing temperature thresholds, dynamic balancing and impeller wear inspection — packaged as a printable annual checklist.
How to estimate friction loss and dynamic loss across runs >30 m without specialist software, using simplified Darcy-Weisbach with K-factors.
Temperature-based PWM control and ambient cut-out logic typically save 35–50% of cooling-fan energy on outdoor 60–180 kW chargers.
No articles in this category yet.
No downloads in this category yet.