Voith IPC 4, Operating Instructions Manual

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45
Voith
Turbo H + L
Hydraulic GmbH & Co. KG
25000057510-TED-ENX-04
17.1.4 Coupling
Torsionally flexible couplings are suitable for high-performance drives. When used
in variable-speed drives (servo pump), we recommend fixed shaft couplings with
frictionally-engaged power transfer and minimal inertia. The permitted remaining
imbalance as specified by the manufacturer must not be exceeded.
17.1.5 Noise emissions of the Voith internal gear pumps
The values listed in the technical data sheets for the sound pressure level are
measured in accordance with DIN 45 635, Sheet 26, i.e., only the sound emissions
of the pump are given. Environmental influences such as the installation site, design
of the overall system (reflective surfaces), piping, etc. are not taken into account.
Sound level measurements
The sound pressure curves given were determined using series pumps in the Voith
sound measuring room (low-noise room). Compared with the measurements in an
anechoic room in accordance with DIN 45 635, the results in the Voith sound measu-
ring room were 5 dB(A) higher.
Due to the low delivery and pressure pulsation of the Voith internal gear pumps, the
stimulation of pipelines, machine parts, containers, and valves is very low. With non-
standard installation and piping conditions, the sound pressure level of the system
may be 5 to 10 dB(A) above the value for the pump.
17.2 Pump combinations
Voith internal gear pumps of the same size or different sizes can be combined to
create multi-flow pumps.
Fig. 17.1: Examples of pump combinations
a c m c e
a c m c m c e
Internal gear pumps
Pump combinations - configuration
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