Adjust Valve; Electrical Installation - Becker VX 4.25 Translation Of The Operating Instructions

18 | VT 4.10, VT 4.16, VT 4.25, VT 4.40, VX 4.10, VX 4.16, VX 4.25, VX 4.40
Dimensioning the suction line
Size
VT 4.10
VT 4.16
VT 4.25
VT 4.40
VT 4.40/0-90
VX 4.10
VX 4.16
VX 4.25
VX 4.25/0-47
VX 4.40
Table 6.2: Connection sizes (suction side)
6.2.2

ADJUST VALVE

Adjusting the vacuum
6.3

ELECTRICAL INSTALLATION

DANGER
Danger to life from electric shock - Personnel qualification
This pump variant has neither a suction filter nor a vacuum safety valve
ex works.
These must be installed by the customer before commissioning.
A direct suction connection without these safety components will
damage the pump.
Make the pipes at least as large as the nominal diameter of the
connection.
For cable lengths > 2 m, the next larger cross-section must be
selected.
For pipe lengths > 5 m we recommend the additional installation of
non-return valves.
Keep connections free of oil, grease, water and other contamination.
The supply line is to be installed by means of a flexible hose or fixed pipe
in such a way that no mechanical tension is applied to it.
The pump is equipped with a vacuum regulating valve, which allows the
vacuum required for the application to be set.
Depending on the size, this value is limited.
Exceptions VX 4.25/0-47, where a suitable valve must be fitted before
commissioning.
Connection
G 1/2 "
G 1/2 "
G 3/4 "
G 3/4 "
G 1 "
G 1/2 "
G 1/2 "
G 3/4 "
G 3/4 "
G 3/4 "