Instruction Handbook KL
Chapter 4
BA KL V11 en
10/2014
page 4-7
4.6
Permissible Pressure in the Suction/Hopper Casing
The permissible internal pressure load in the suction casing is:
for all pumps
max. 1 bar
unless a different internal pressure (e.g. for clockwise running submergible pumps) has been
permitted in the data sheet.
The hopper casing must not be subjected to initial pressure.
It is intended for the taking-up of the pumped medium and is to be loaded exclusively with the static
pressure of the medium in a height of
3 m
unless a different filling height has been permitted in the data sheet.
The permissible internal pressure load inside the pressure connection is specified in the datasheet.
4.7
Space Requirements for Operation and Maintenance
Design a free space to provide on the pump (see dimension sheet)
to allow maintenance tasks to be performed (e.g. stator/ rotor replacement)
without having to dismantle the pump. In order to facilitate fitting, use
adjusting pieces and suitable shutoff devices!
Remember to provide some additional free space for adequate ventilation of
the drive motor ( see drive unit documentation)
The open space for the pump should at least be:
in flow direction
1.5 times stator length
on drive unit
single drive unit length
at each pump end
0.5m
4.8
Electrical Connection
Danger!
E.g. electric shock!
Possible dangerous situation: Severe or fatal injuries.
Connect of motor may only carried out by qualified personnel!
Before connecting the motor check that your actual mains voltage and frequency correspond to
the details provided on the type plate of the motor.
Before connecting the motor, check the phase sequence with regard to the direction of rotation.
Connect the motor in such way that the pump runs in the given direction of rotation to avoid
damage to the sealing unit.
Note that the PTC sensor of the geared motor must be connected to the terminals provided to a
PTC actuation unit or to a variable-frequency drive with a PTC input (each available as an
option).
Soft starters or variable frequency drives must be suitable for high starting currents. Therefore,
oversized devices should be used for heavy starting.
Design an
emergency stop device
to shut down the pump in hazardous situations immediately.