44
PROTEC 2K
B_05174
!
B_05173
!
OPERATING MANUAL
VERSION 02/2016
ORDER NUMBER DOC2352824
5.11
FEED PUMP (OPTION)
A feed pump can be used with high-viscosity products or longer feed lines.
Dimensioning of the feed pump
The piston pumps pump the working material to the product output with up and down
strokes but only draw in new product on the up stroke. The feed pump therefore has to
pump twice the volumetric fl ow.
Protection of feed pump
If the maximum pressure of the feed pump is lower than the maximum pressure of
the main pump, this could be exceeded if the main pump malfunctions. The feed
pump and connection line must therefore be protected from excessive overpressure.
An overpressure valve must then be installed between the feed pump and main pump.
Observe the fl ow direction during installation.
The maximum product pressure at
the pump inlet of the PROTEC 2K
fl uid sections may not be exceeded.
Feed pump
Main pump
Feed pump
Main pump
Pressure relief valve
Summary of Contents for PROTEC 2K
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