AMETEK Rotron - Propeller Fans - Model NF & NFV & NFG

		Rotron Propeller Fans

Propeller Fans have sheet metal blades, usually four or more in number, which are curved to provide an aerodynamic lift and are generally arranged without blade overlap (PREMAIRPROP™ blades overlap). These fans operate best at free delivery or at very low static pressures.
Propeller Fans are suitable for conditions which require movement of a large volume of air against low resistance to flow. These fans are recommended for flushing cooling air through small enclosures such as radio cabinets, instrument panels, and communications equipment shelters.
They come in a variety of voltages and frequencies and are available with lead wires only. Most units are available with an optional internal Fan Performance Sensor (FPS) or external Low Speed Warning Device (LSWD).

AMETEK Rotron - Propeller Fans - Model NF

		Rotron NF/NFV/NFG Propeller Fans

NF (6.5’’ Propeller)

NF model 6.5” diameter propeller fans allow for high airflows at low static pressures with low motor-winding temperature rise. Models are available with airflow in either axial direction and with 50/60 and 400 Hz AC or brushless DC motors

Propeller fans are recommended for flushing cooling air through large enclosures such as radio cabinets, instrument panels, and communication equipment shelters.

General

· Physical envelope: 8.5” Dia. x 4.94” L

· Weight: approximately 5.0 lbs.

· Specially designed for cooling electronics in radio cabinets, instrument panels, radar systems and shipboard applications.

· NF – standard model, spun venturi

· NFG – high shock resistance, cast venturi, reinforced mounting brackets and propeller.

· NFV – vibration isolator mounts

Materials and Finishes

· Propellers are stamped aluminum with a painted or anodized finish.

· Venturi rings are available in spun or cast aluminum with a painted or anodized finish.

· Mounting brackets are made of zinc plated steel

· Motors have stainless steel shafts and aluminum frames which are finished in black enamel.

· "Lubricated-for-Life” ball bearings

AC Powered Units

· 3-phase and 1-phase permanent-split capacitor motor designs

· Fixed speeds (performance) based on input frequency.

· Max free delivery airflow of 360CFM at 50Hz, 360CFM at 60Hz, 545CFM at 400Hz

· Ambient temperature range: -54°C to 125°C

DC Powered Units - E.C.D.C. ®

· May be constructed for this model fan with similar properties to that of AC line powered units

Optional DC-AC Inverters and AC-DC Converters for AC Powered Models

BATAC®Inverter Driven Units

· AC square wave fans are driven from a DC power source through a BATAC® Inverter.

· Low cost alternative when multiple fans are used in a single application or area.

· Allows for greater than 100 VDC input voltage

Options/Accessories

· Screen Guard

· Rear Finger Guard

· LSWD (low speed warning device)

· FPS (fan performance sensor)

AMETEK Rotron - Propeller Fans Unit Description Key