Application

The range of BFI series presents vertical direct motor-driven agitators. These agitators are used in processes of mixing, dissolution, dispersion and maintenance whenever powerful and high-speed agitation is required in the food processing, cosmetics, pharmaceutical or chemical industries.

The agitators are normally fitted to small or medium volume tanks for work with low-viscosity products.
Bearing support of the BFI series agitators is manufactured in stainless steel and it is indicated for the pharmaceutical applications.

Operating principle

The agitators are normally installed inside the tank either centrally with current deflectors, or offset so that the offsetting itself prevents the rotation of the stirred product. The rotation of the propeller makes the fluid flow to the bottom and then up to the surface of the product along the walls of the tank. The effect is promoted if the bottom of the tank is curved.

The saw tooth propeller promotes the dispersion of the product.

Design and features

Vertical agitator.

Double lip seal.
Double ball bearing support.
The propeller fixed to the shaft by means of a threaded connection and a gasket; the shaft is made of one piece.
IEC motors, 1500 rpm, IP 55, F-class insulation.
Maximum power 5,5 kW.
Marine propeller (Type 10) or saw tooth propeller (Type 4).

Indicated for work under pressure or in vacuum (-1 to 4 bar).

Options

Double/flushed mechanical seal.

Shaft and propeller lined with plastic material for use with corrosive products.
Welded propeller with Ra ≤ 0,4 μm surface finish.
Motor shroud.
Motors with other protections.
Motors: 950 rpm or 750 rpm.

Geared motors or variable speed drives.

Materials

Parts in contact with the product: AISI 316

Retainer: GYLON according to FDA 177.1550
Bearing support: AISI 316
Surface finish: Electropolished

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