BFC
Bell-coupling gear pumps
BFC pumps are volumetric gear pumps suitable for transferring lubricant viscous liquids without any suspended solids or abrasive substances. They are self-priming pumps used for a wide range of liquids with a viscosity from 1 to 1.000 cSt. The speed of rotation is chosen according to the viscosity of the liquid. Flowrate range is from 2 to 70 L/min.
The standard construction consists of pump housing and cover in cast iron, shafts and gears in carbon steel, O-rings in Viton, sleeve bushings in Steel-Bronze-PTFE and mechanical seal in ceramic-graphite-Viton. BMF, BCF and BFC pumps are supplied with a pressure relief valve in brass.
Nozzles in inlet and outlet are of the same diameter and
positioned on the same axis.
A short and straight alignment of the flow channels provides for a good suction capability and a quiet running. The helical gears result in extremely low noise levels and reduced pressure pulsation.
BMF (three phase) and BCF (single phase) are monobloc gear pumps with a very compact and strong design. These pumps have an integrated IM B34 electric motor. All the motors are IP55 with an insulation class F. Special voltages and protection IP56/IP65 on request.
BFC pumps are designed to fit, by means of a coupling bell and coupling, an industrial electric motor in compliance with the IEC standard with B14 flange and feet (IM B34). The electric motor can be supplied on request.
Nominal flow rates
This table shows the possible flow rates for non-pressurized pumping (Δp=0) and a 46 cSt fluid.
The flow rate of gear pumps is virtually proportional to
their speed. The selected speeds are the most common speeds at rated power of industrial electric motors at 50 and 60Hz.
SENSE OF ROTATION AND FLOW DIRECTION
The standard version of BFC pumps, can operate only in one direction of rotation: counterclockwise watching the pump shaft end.
The direction of rotation of the motor, when properly connected to the mains, is shown by an arrow placed on
the fan cover. Watching the electric motor fan, the flow direction will be from the left side to the right side and the pressure side (delivery) will be at the right-hand side.
On request a clockwise version can be supplied.
Overal dimensions and weights
