Fans and Blowers High Velocity 428

Product catalog summary

Performance Curve Overview:
The document provides performance data for the 428 High Velocity Centrifugal Fan, including noise levels, current readings, and performance limits. Noise levels are measured at 1m from the blower with an inlet silencer and ducted outlet. A noise survey is recommended post-installation due to potential high noise levels.

Specifications:

Noise levels: Measured at 1m, with potential for high levels in certain modes.
Voltage: 400V 3 Phase and 230V 1 Phase.
Continuous rating limits are indicated by a thick line on the performance curve.

Model Details:

Model 428D: 1.5 kW motor, 3 Phase, 3.5 A max current, 32 kg, 78 dB(A).
Model 428F: 1.5 kW motor, 3 Phase, 3.5 A max current, 32 kg, 82 dB(A).
Model 428G: 2.2 kW motor, 3 Phase, 4.7 A max current, 36 kg, 82 dB(A).

Performance Data:

Volume flow rates are provided in cubic feet per minute (cu.ft/min) and cubic meters per hour (cu.m/hr).
Total pressure is measured in inches water gauge (in. w.g.) and millimeters water gauge (mm w.g.).

Contact Information:
Secomak Ltd., 330 Centennial Park, Elstree, Hertfordshire, WD6 3TJ, UK. Phone: +44 (0) 208 7321 300, Fax: +44 (0) 208 7321 301, Email: [email protected], Web: www.secomak.com

Catalog excerpts

Model No. 428D 428F 428G Motor (kW)Phase Maximum Running Current (A) Weight (kg) Noise Level dB(A) * 1.533.532 78 1.533.532 82 2.234.736 82 > * Noise levels have been measured at a distance of 1m from the blower, which was fitted with an inlet silencer and a ducted outlet. In some modes of use , these fans may generate high noise levels. It will be necessary to carry out a noise survey after installation.Current readings are based upon voltages of 400V 3 Phase and 230V 1 Phase. Thick line on performance curve shows limits of continuous rating. 100200400300600500 102030 4050 1200 428/F 428/G 428/D TOTALPRESSURE(in.w.g.) TOTALPRESSURE(mmw.g.) 200400 6008001000 0200100300400 VOLUME (cu.ft/min) VOLUME (cu.m/hr) PERFORMANCE CURVE Secomak Ltd. 330 Centennial Park, Elstree, Hertfordshire, WD6 3TJ, UKPhone: +44 (0) 208 7321 300 Fax: +44 (0) 208 7321 301 E-mail: [email protected]: www.secomak.com >

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