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  • High Static Pressure Fan
    fans. with both high cooling performance and low power. consumption during operations. This document introduces the features and performance. of the high static pressure 60 mm sq., 76 mm thick counter. rotating fan?? San Ace 60?? CRA type that was developed to. meet these market demands.
  • Fan curves and optimum operating points
    Fans create a flow of air, which they can then force through equipment that needs cooling. The necessary output is determined from the flow rate and the required static pressure. If the airflow through the equipment is restricted to any great extent by built-in components or bends and junctions
  • Fan Design
    and pressure over its entire area. Any well-designed fan wheel is sure to have two characteristics. 1. The individual blades will be narrow at the tip, where the blade velocity is high, and will widen toward the hub, where more blade area is required due to lower blade velocity. 2. The angle
  • What is a DC Axial Fan?
    An axial fan in general, whether DC axial fans or otherwise, is the most commonly used variety of cooling fan, as well as the most cost effective. Also called 'box fan' on occasion, they move air on a straight axis through the fan. This kind of fan functions best under a low pressure or low system
  • Understanding Fan Performance Curves
    the performance characteristics of various fan types, like areas of instability, or the rate of change between flow and pressure. With some basic knowledge of performance curves, decisions can be made concerning fan selection, fan and system alterations, or the advisability of using a fan in a modulating
  • Field Testing of Fan Systems
    A fan system may require field testing when the system is thought to be malfunctioning, needs modification or requires balancing of its volume and pressure characteristics.
  • Temperature and Altitude Affect Fan Selection
    Fan performance changes with the density of the gas being handled. Therefore, all fans are cataloged at a standard condition defined as: 70°F. air, at sea level, with a gas density of .075 lb./ft^3 at a barometric pressure of 29.92" Hg. At any other condition, the fan's horsepower requirement
  • How to Recognize a High-Efficiency Fan
    The most important requirement of a fan wheel is that it must impart to the air stream a uniform velocity and pressure over its entire area. Any well-designed axial flow fan wheel is sure to have two characteristics: 1. The individual blades will be narrow at the tip, where the blade velocity

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