Application
JAF jet axial fans are designed for general purpose ventilation of underground and semiopened parkings, ventilation of tunnels, smoke extraction in case of fire as a part of smoke extract system. The fans generate a high-speed and high-pressure directed air jet.
Modifications
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Unidirectional single-speed type (U)
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Unidirectional double-speed type (U)
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Reversible single-speed (R)
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Reversible double-speed (R)
Design
JAF casing has a tubular shape and is made of galvanized polymer coated steel. The fan has a sound insulation of mineral wool. The casing includes inner brackets for motor fixation. These brackets act as directing vanes and distribute air flow uniformly, thus increasing aerodynamic performances of the fan.
Motor
Three-phase asynchronous short-circuit rotor motor in the fan casing. Motor ingress protection rating is IP 54. The motor design ensures operation of the fan in the smoke extract systems on unidirectional and reverse modes.
Impeller
Dynamically balanced impeller made of cast aluminium. The reversible fans are equipped with 100 % reversible two-directional impeller.
Mounting
JAF fans are designed for horizontal ceiling mounting and fixation by means of the supplied fixing brackets attached to the fan casing.