Hanbell RC2-D, Technical Manual

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RC2-D Technical Manual
pressure gas return port of the compression chamber, and then install an economizer check valve to
reduce the vibration caused by the medium pressure gas return. For the connection between muffler and
check valve, please refer to the application system in Chapter 7
.
5.2.15 External Oil filter
For parallel connection system, an external oil filter must be installed on the return line to ensure the
cleanliness of the oil return. If the pipeline is too dirty, secondary filtration must be added to ensure the
compressor is in safe operation. The oil filter is of washable type, with the precision of 300 meshes. See
the following figure for the dimensions. The thread / welding ports of the inlet and outlet are connected
with 3 / 8 ", 5 / 8" and 1 "copper pipes.
Figure-External Oil filter
5.2.16 Oil flow switch
The oil flow switch should be installed in the system with external oil separator to prevent oil loss of the
compressor. The specifications and installation are as follows:
Installation diagram of oil flow switch
Type Connection
Pipe size
Applicable model
Thread weld
（
d
）
138
型
Thread/weld 3/8" Φ10 RC2-100~310D-P
138
型
Thread/weld 5/8" Φ16 RC2-340~620D-P
138 Weld 1" Φ25.5 RC2-710~930D-P
Size Connection
Model
3/8" Thread/Weld RC2-100~180D-P
5/8" Thread/Weld RC2-200~620D-P
1” Weld
RC2-710~930D-P