Connecting The Pipelines; Pipe Connections; Pipelines - Biber OSKA9563 Instructions De Service

Information
Observe safety standards EN ISO 13857 / EN
294 / EN 349 and national regulations.
Use only couplings with elastic intermediate ele-
ments which can compensate for slight shifts in
axial direction, but do not exert their own axial
force.
NOTICE
!
!
Risk of damage to the compressor due to wrong
couplings!
Use only couplings approved by BITZER!
Approved coupling:
• KS900
The compressor is connected to the motor via the
coupling housing:
• Clean mating surfaces on the compressor, motor
and coupling housing.
• Install the motor on rails.
• Slide the coupling half for the compressor side (in-
cluding parallel key) on the compressor shaft, make
sure that it is flush and fasten it with screws, fasten
the compressor to the coupling housing.
• Slide the coupling half for the motor side (including
parallel key) loosely on the motor shaft, fasten the
coupling housing to the motor.
• Remove protective grid from the coupling housing,
move the coupling half on the motor side until the
clearance is 2 .. 5 mm, then fasten it with screws.
• Make sure to re-install the protective grid afterwards!
NOTICE
!
!
Poor coupling alignment may cause premature
coupling failure and damage to bearings and
shaft seal!
Carefully align the motor and compressor shaft!
NOTICE
!
!
Risk of damage to compressor and coupling!
Firmly tighten the fixing elements of both coup-
ling halves to prevent them from getting loose
during operation!
Tightening torque: 15 Nm.
Provide additional support for the compressor on the
base frame.
Direct drive without coupling housing is possible, but it
requires a very stable base frame and an exact align-
ment of the compressor shaft and motor shaft. The
shaft ends must not touch each other. For height ad-
justment, use stable supports (flat sheets).
6
Special drives (e.g. combustion engines) require indi-
vidual consultation with BITZER.

4.4 Connecting the pipelines

WARNING
The compressor is under pressure!
Serious injuries are possible.
Depressurize the compressor!
Wear safety goggles!
NOTICE
!
!
Potential chemical reactions due to air penetra-
tion!
Proceed swiftly and keep shut-off valves closed
until evacuation.
4.4.1

Pipe connections

The pipe connections are designed in way that they are
suitable for pipes in all common dimensions in milli-
metres and inches.
NOTICE
!
!
Do not overheat the shut-off valves!
Cool the valve body and the welding adapter
during and after the welding operation.
For welding, dismount the pipe connections and
the bushes.
4.4.2

Pipelines

Use only pipelines and system components which are
clean and dry inside (free from slag, swarf, rust and
phosphate coatings) and which are provided with an
air-tight seal on delivery.
As standard, the compressors are supplied with blank-
ing plates on the pipe connections. These must be re-
moved before performing the strength pressure and
tightness tests and commissioning the system.
NOTICE
!
!
For systems with rather long pipelines or for
welding operations without protective gas:
Install the suction-side cleaning filter (mesh size
< 25 μm).
Information
The blanking plates are only designed to serve
as a transport protection. They are not suitable
as a separation between different system sec-
tions during the strength pressure test.
SB-520-1