The PFS axial is a boiler fan offering good economy, simple installation, proper and problem-free control and low maintenance costs.
The name Fläkt Woods is synonymous with leading flue gas cleaning systems and boiler fans to everyone associated with the design, installation or operation of boiler plants.
Fläkt Woods's PFS series of fans are designed for boiler plant applications ranging from medium size up to the very largest (50-1000 MW). The PFS is a single stage, axial flow fan in which the blade angel can be varied during operation by an integrated hydraulic cylinder. Fan performance is therefore continuously adjustable to meet the immediate needs from varying boiler loads. The PFS axial fan is designed to meet the demands of a forced induced draft fan.
PFS fan's overall design features make it a unique axial fan and here is why:
The fan's design ensures high aerodynamic performance throughout its entire operation range.
You always choose the optimal fan for your installations due to the large range of PFS models.
No external actuator is needed.
The blades are controlled by a minimum number of moving parts, giving high reliability, low friction and long operating life.
The servo system controlling blade positioning eliminates all hysteresis problems.
The details that make PFS axial's the most economical alternative are:
The control system quickly and accurately adjusts the PFS fans operating point to meet system requirements.
Placing of the blade thrust bearings at a maximum distance from the centre of the impeller enables larger bearings to be used resulting in lower bearing load.
PFS's design principle gives you a fan of the longest possible operating life due to:
A low load bearings.
Guaranteed continuos lubrication of blade thrust bearings under pressure.
No risk for faulting the lubricant.
No corrosion risk.
We have designed from the start to operate over long periods without the need for maintenance, to keep service requirements to a minimum.
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