Liquid ring compressors LOH 20103, LOH 201070 pages

Liquid ring compressors
LOH 20103, LOH 20107
VACUUM TECHNOLOGY KPH K 2
133.72110.53.01 E 03/2002
Compression pressures: 0,2 to 1 bar
Suction volume flow: 18 to 51 m³/h
CONSTRUCTION TYPE
Sterling SIHI liquid ring compressors are displacement
compressors of simple and robust construction. They have the
following important features:
Handling of nearly all gases and vapours
non-polluting due to nearly isothermal compression
oil-free, as no lubrication in the working chamber
additional liquid can be handled with the gas flow
easy in maintenance and reliable operation
low noise and nearly free of vibrations
wide choice of material, therefore applicable nearly
everywhere
no metallic contact of the rotating parts
The Sterling SIHI liquid ring compressors LOH 20103 and
LOH 20107 are single-stage compressors. They can be applied
without modification as vacuum pump up to a suction pressure of
150 mbar see catalogue part LI).
APPLICATION
Handling and compressing of dry and humid gases; entrained liquid
can be handled during normal duty. The compressors are applied
in all fields where a compression over pressure of up to 1 bar has
to be created by robust compressors and only a small increase in
temperature is admissible during compression.
Fields of application are e.g.:
- the plastics industry, for the recovery of process gases
as vinyl chloride
- the petrochemical industry, for the compression of
combustible gases as gasoline vapours or hydrogen
- transport of gases in general, e.g. to a reactor
NOTE
During operation the compressor must continuously be supplied
with service liquid, normally water, in order to eliminate the heat
resulting from the gas compression and in order to replenish the
liquid ring, because part of the liquid is leaving the compressor
together with the gas. This liquid can be separated from the gas in
a pressure liquid separator ( see catalogue part accessories).
It is possible to reuse the service liquid.
The direction of rotation is clockwise, when looking from the drive
on the pump.
GENERAL TECHNICAL DATA
Pump type unit LOH 20103 LOH 20107
Speed 50 Hz
60 Hz rpm 2800
3400
2800
3400
Max. compression over pressure bar 1
Hydraulic test (over pressure) bar 3
Moment of inertial of the rotating pump
parts and the water filling kg . m² 0,0033 0,005
Sound pressure level of measuring area dB (A) 70
71
70
71
Min. pulley diameter permissible
in case of V-belt drive mm 80 90
Max. gas temperature dry
saturated
°C
°C
200
100
Service liquid
max. admissible temperature
max. viscosity
max. density
°C
mm²/s
kg/m³
80
90
1200
volume up to shaft level litre 0,9 1,0
The combination of several limiting values is not admissible.