Series 1000 Single Width Single Inlet (SWSI) fans are most commonly used when suction duct is required on the fan inlet. The single width fan has the advantage of providing a connection from the duct straight to the fan inlet, without the use of inlet boxes.

This can also be advantageous when the air is contaminated or at a very high temperature, and it is desirable to have the bearings excluded from the air stream, without the use of inlet boxes.

A range of optional extras, including special finishes with construction in various types of metal, such as stainless steel, are available. These fans can be made suitable for smoke spill applications, subject to meeting appropriate standards.

SWSI fans can be supplied in various arrangements as noted on our fan handing sheet, and can be constructed to operate at temperatures up to 400°C.

Series 1000 Fans are the most widely used type of centrifugal fan. They are mainly used in air conditioning and ventilation industries, industrial processes – exhaust, drying, cooling and combustion air supply.

Key features of FBA Series 1000 centrifugal fans are:

Backward Inclined Centrifugal Impeller - for superior performance. This series of fans incorporates aerodynamically designed casings and streamlined inlet cones, which are compatible with both Laminar ( L) and Aerofoil ( AL) impellers.

High Efficiency / Low Operating Cost - characteristically these fans have a broad efficiency curve. This results in lower power consumption and operating cost for the life of the installation.

Quietness of Operation - the impeller design allows for air expansion over the entire blade width, with relatively low velocity and minimum turbulence.

True Non-Overloading Absorbed Power - the power curve peaks within the normal operating range and at maximum efficiency. Thus the motor selected for the desired duty is usually sufficient to operate the fan over its complete volume-pressure curve, without overloading.

Stable pressure curve - the inherent design of the backward inclined impeller results in a steep-rising pressure characteristic over a wide range of capacities. This ensures minimum changes in volume with shifts in system pressure, providing extremely smooth operation.

Series 1000 fans centrifugal fans are available with impeller diameters ranging from 310mm to 2260mm.

DIMENSIONS: SERIES 1000 SWSI FANS ARRANGEMENTS 1 & 9

This data refers to the dimensions of the Series 1000 SWSI fans, Arrangements 1 & 9.

The handing illustrated is anti-clockwise, discharge angle 0° (ACW0). Other positions shown on the fan handing page can be determined by rotating the case about the shaft centre.

Certified drawings and performance and dimensional data for larger sizes are available on request.