47
VERSION 10/2018
ORDER NUMBER DOC 2339321
.
5.15 CONNECTION KIT FOR GUN FLUSH BOX (OPTION)
The GFB connection kit is used as a link between the TwinControl system and a gun flush box.
The installed connection kit records the following test functions:
- is a gun used in the gun flush box,
- is the GFB lid closed,
- is the gun in the gun flush box for flushing open.
The GFB connection kit is included in the control units 3 and 8. For installation possibilities
in other control units, see Chapter
.
5.16 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 product 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 flow.
The maximum product pressure at
the pump inlet of the TwinControl
pump must not be exceeded.
B_06776
!
Feed pump
Main pump
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 flow direction during
installation.
B_06777
!
Feed pump
Main pump
Pressure relief valve
The pressure-relief valve must be
cleaned regularly and after each
activation: Flush with solvent.
