PFT G4 - Operating Modes

Mixing Pump PFT G4
Structure and function
30 2007-09-05
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4.5 Operating modes
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Fig. 13: Cellular wheel – operation modes
Cellular wheel
The cellular wheel can be operated in three different modes:
 "O"
Cellular wheel is switched off and thus material feed to the
mixing zone is interrupted, e.g. for cleaning the mixing zone
with the cleaning shaft, or for pressure testing the pump.
 "AUTO"
Cellular wheel runs synchronously with the mixing pump and is
switched on and off with the air controller or remote control.
 "HAND" (MANUAL)
In "Manual" position the cellular wheel runs in continuous
operation regardless of the air controller. In this position
material can be supplied to the mixing zone if the pump is at a
standstill.
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Fig. 14: Water pump – operation modes
Water pump
The water pump can be operated in three different modes:
 "O"
Water pump is switched off, e.g. if the water pressure is
continuously 2.5 bar (36.2 psi).
 "AUTO"
Water pump runs synchronously with the mixing pump.
 "HAND" (MANUAL)
In the "Manual" setting the water pump is always running
(e.g. for cleaning the hoses).
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