DA Series
Operation Manual
8
of Labor of the People’s Republic of China.
(9)
The indication stickers on the control panel and this operation manual shall be carefully read
according to each standard operation before starting up the air compressor.
(10) Various cover plates and casings shall be re-installed after completing daily maintenance.
Notice: when the shield plate of the unit is open, the air compressor shall not be started up.
Warning
Not taking such safety advice abovementioned may result in mechanical faults, property damages,
severe personal injuries and even death. Such factors as vibration, pulse, temperature, maximum
pressure, corrosion resistance and chemical resistance shall be considered for any air inlet pipe and
exhaust pipeline connected to inlet/outlet joints, and it should also be noted that there may be a little
lubricating oil in the compressed air generated by the oil air compressor, therefore reasonable allocation
and compatibility shall be ensured between exhaust pipeline and system post treatment device and filed
air demand.
3.6 Suggestions for Pipeline
3.6.1 Pipeline
The air cooler in the unit may sharply reduce the exhaust temperature below the dew point temperature
(under most environmental conditions), so there will be a large amount of condensate separating out. The
condensate valve (drainage device) shall be installed near the exhaust outlet of the air compressor and a
length of exhaust pipe shall be connected to the drainage device of condensate water.
Key point
:
The drainage device shall be inclined downward in order to work normally.
Notice
:
A length of drain pipe (transparent hose) shall be placed in the drain pipeline for ease of
inspecting the operation of the automatic drain valve. If the posterior pipeline further cools
the air, it may regenerate the condensate water. Therefore, the release valve and the
drainer of condensate water shall be installed at the lower place of the piping system.
Key point
:
The diameter of the exhaust pipeline shall be kept at least the same big with that of exhaust
connection pipeline in the casing of the air compressor. All pipelines and joints shall apply to
the maximum operating temperature of the unit, and the nominal pressure shall be kept at
least the same high with that of the oil-gas separator of the air compressor. It is important to
check over each joint dimension of the air compressor, and proper length and dimension of
the pipe, the number and category of the joints and valves shall be considered to reach the
maximum efficiency of the air compressor. It is important to comprehensively consider the
air system of the whole plant to ensure the safety of the entire system while installing new
air compressors. Condensate water will be necessarily produced in the air pipeline during
