Operations & maintenance manual – ASTRA evo (DDE)
ARGALAIR 2020 | Rev. 6
13
SSN-SSX
-40 (-104)
+40 (+104)
SPN-SPX
-40 (-104)
+40 (+104)
Table 3
Note:
For different temperatures consult the ARGAL technical department.
CAUTION:
To optimize the pump lifetime we recommend to run at
70% of the maximum
performance
of the pump. Running at maximum air pressure/flow continuously may cause
premature wear of the components.
CAUTION:
To ensure the operation of the pump in the absence of cavitation must be respected the
following conditions:
•
Avoid heavy hydraulic load losses in the suction line, increasing the pipe diameter
and/or decreasing the length of the suction.
•
In the presence of high prevalence, hydraulic head losses can be divided on two
pumps, placed in series with appropriate distances depending on the losses of each
length.
•
Use the pump by positioning it as low as possible, if there is a high difference in level
between pump and free surface of the fluid to be sucked.
The pumped fluid may contain particles suspended in different dimensions in accordance with the
constructive materials of pump:
MODEL
030
060
100
160
400
650
MATERIAL
WR_-FC_- AL_ SS_-SP_ WR_-FC_- AL_ SS_-SP_ WR_-FC_- AL_
SS_-SP_
WR_-FC_- AL_
SS_-SP_
WR_-FC_- AL_
SS_-SP_
WR_-FC_- AL_
SS_-SP_
MAX
DIMENSION
(mm)
3
3,5
3,2
3,8
5,5
6
7
9
Table 4
0.6.2 AIR TREATMENT SYSTEM
WARNING:
the pneumatic supply of
ASTRA evo
series pumps must be carried out with
oil-free
,
filtered
,
dry and un lubricated air.
Avoid pressure drops by using pipes and controlling elements
having characteristics suitable for the pump.
In case of installation in ATEX zone, the compressor must suck air from outside the area classified as ATEX or
use inert gas.
We recommend to use an appropriate
air treatment system
in order to maintain the pump’s efficiency.
If the air humidity is high, it can be used an air dryer, to lower the dew point. Otherwise, ice may form at the
silencer, causing the narrowing of the air expelling surface. The possible formation of ice on the muffler
Содержание ASTRA Evo DDE 030
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