High Static Pressure Centrifugal Fan

Large air flow and high static pressure centrifugal fan san ace c175 tg type fig.

High static pressure centrifugal fan.

The fan blades of high static pressure fans are more curved and are directed towards the heat source. When a centrifugal fan is specified for a given cfm and static pressure at conditions other than standard an air density correction factor must be applied to select the proper size fan to meet the new condition. The open radial wheel does involve decreased operating efficiency when compared to the shrouded wheel but covers a wider range of air volume and pressure combinations. Air resistance is futile.

Ec centrifugal fans with high static pressure. The hp ii fans include continuously welded heavy gauge steel housings with removable inlet plates and housings teflon shaft seals and flanged inlets and outlets. Best 120mm 140mm static pressure fans for radiators heatsinks and restricted spaces in pc case. These high static pressure fans can deliver air at great force to the heat source and cools them down at a faster pace compared to standard fans.

Cincinnati fan manufactures hp series ii high static pressure radial blowers in twelve models each available with multiple wheel sizes. Fan static pressure can be described in a number of ways but in simplest terms it is the resistance pressure the fan has to blow against in order to move air in the desired direction. These high static pressure fans feature specially designed blades to provide high cfm values and focus air movement to push pull air. If the fan is blowing against a high resistance pressure it requires more horsepower and delivers less air.

Their characteristic features are a low noise level relatively small air flow with a high increase in static pressure and space saving application. Hprl a high pressure centrifugal blower designed with an open radial wheel. Centrifugal fans with forward curved blades always require a scroll housing see figure 2 16. Centrifugal fans or blowers use one of seven types of wheels that are enclosed in a scroll shaped housing.

Radial open high pressure blower. With 0 of suction pressure on the inlet and 12 of discharge pressure the total static pressure 12 inwg. Since 200 f 93 c air weighs only 80 of 70 f 21 c air the centrifugal fan creates less pressure and requires less power. Engineered for low air volumes at high static pressures.

There is no correction required for discharge pressure. Comparison with the axial flow fan by optimizing the blade shape and the motor drive circuit the new model achieves large air flow high static pressure and low power consumption. Understanding what causes the fan static pressure to.