5.1
[en] 02/2014
Installation and operating manual - NK 31
5 Installation/Assembly
5.1 Connection thread/assembly
5.1.1 Fastening screws
Female threads are provided on the NK housing
which must be used for fastening. Only suit
-
able screws with a METRIC THREAD are to be
screwed into this female thread.
5.1.2 Pipe connections
Pipe connections with a female thread for a
compressed- air outlet, oil circulation, draining
and control lines are provided on the NK housing.
Only fittings or screw connections with a CYLIN
-
DRICAL INCH THREAD suitable for these female
threads may be screwed in.
CONICAL THREADS must be avoided, as dam-
age to the NK housing can occur when screwing
in (see installation drawing).
Attention
The maximum permissible tightening torque for
all screw connections may not be exceeded.
VDI 2330 (see chapter
9.2
“Tightening torques”)
Only screws suitable for fastening the compres
-
sor housing may be used for this purpose.
Consult ROTORCOMP beforehand if necessary.
5.2 Safety precautions for installation
and assembly
Attention
– To lift the compressor module, suitable lifting
equipment must be used which complies with
the local safety regulations.
– All blind flanges, plugs, caps and bags with
desiccant must be removed before mounting
the pipes. Screw fittings and pipe connections
must be of the correct size and must be suit-
able for the respective operating pressure.
– The air drawn in may not contain any flam
-
mable, caustic, toxic or aggressive vapors or
gases whatsoever.
– Make sure that the pressure line from the
compressor to the recooler or air system can
expand as a result of the heat and does not
come into contact with flammable materials.
– The air intake opening must be positioned so
that objects, e.g. loose clothing of passersby,
cannot be drawn in.
– No external force may be exerted on the air
outlet valve; the connected pipe connection
must be mounted torque-free.
The compressor block must be provided with a
sufficiently dimensioned ground.
