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5. Design
5. Design
5.1 General information
Pump units of the KFG, KFGS and KFGC series
are electrically driven reservoir pump units
available with and without an integrated con-
trol unit. The pump provides on-demand lubri-
cant supply to centralized lubrication systems
with progressive feeders or single-line distrib-
utors on machines, systems and vehicles.
The pump units differ in terms of the size and
type of lubricant reservoir, the lubricant filling
and their control and function monitoring.
Powerful CAN bus versions allow one unit and
a special valve to supply up to four indepen-
dent zones according to demand.
Note
The exact pump designation of the CAN bus
version consists of the particular order code
and begins with the KFGC designation. This
pump design is listed below under the KFGC
designation for the sake of simplifying the
descriptions.
5.2 Design
Pump units of the KFG and KFGS series are
characterized by their compact construction
and are divided into assemblies for pump
housing, lubricant reservoir, control unit
and ill level monitoring.
A short description of the individual assemblies
follows below.
5.2.1 Pump housing
The pump housing contains, among other
things, the pump drive, control unit (KFGS) and
three lubricant outlets for installing a maxi-
mum of three pump elements. One pressure
regulating valve can be attached to each pump
element. When used in single-line systems, a
pressure relief valve is also attached to the
pump element together with a pressure regu-
lating valve.
A conical head nipple can optionally be at-
tached to the pump housing via the alternative
connections to fill the pump. A filler socket or
grease return can also be attached.
A display and control screen is mounted on the
front side of the KFGS design, while the KFGC
5.2.2 Lubricant reservoir
The lubricant reservoir is available in 2 kg,
6 kg and 10 kg sizes. The reservoirs are made
of transparent plastic and have fill level mark-
ings that allow the fill level to be monitored vi-
sually. The pump fill level can be monitored
using an integrated rocker switch or, optionally,
an inductive level switch attached to the cover.
5.2.3 KFGS control unit
Pump units of the KFGS series are equipped
with an integrated IG502-I control unit with a
control display.
Parameters for interval times (timer), interval
pulses (counter) and pump cycle times (con-
tact) can be entered through the control unit.
design has a display attached. An IrDA inter-
face is integrated into this, which can optionally
be used to program the pump.
Depending on the pump version and voltage
design, the electrical connections are located
on the left front and/or the underside of the
pump housing.
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Summary of Contents for KFG
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