Argal ASTRA Evo DDE 030, Руководство оператора и по техническому обслуживанию

Страница: 25 / 62

Operations & maintenance manual – ASTRA evo (DDE)
ARGALAIR 2020 | Rev. 6 25
the causes of accidents that may lead to the pump failure. The consequential spillage of fluid
may be hazardous to persons and the environment.
It is essential to wear protective clothing and safety goggles when operating, and/or
working in the vicinity of ARGAL pumps.
WARNING! The maximum air pressure for ASTRA EVO pumps is
8 bar
. Higher air pressure than 8
bar can damage the pump and may cause injury to the machinists in proximity of the pump.
The air supply pressure must also never be below
2 bar
.
CAUTION! ARGAL declares that the pump NOISE LEVEL does not exceed 85 dB(A) . ARGAL
performed the noise test with the source undergoing a characteristic work cycle under defined
conditions. The noise level of the pump is influenced by the different modes of operation. So
under different modes of operation, for example if the pump is operating under high air
pressure at low discharge head, the noise can be hazardous for the operators working for long
periods near the equipment.
WARNING! You must wear adequate ear protection in case of exceeding the Sound Pressure
value equal to 85 dB (A). Alternatively lower the air pressure and/or increase the discharge
head.
When installation is new or reinstalled, check the pump casing screws tightening torque. After
one week operation, the torque should be checked again. This is important to prevent
leakage.
CAUTION! The increase in temperature can cause damage to the pump and/or pipes.
DANGER for the personnel in vicinity of the plant (pump and piping)!
Avoid rapid temperature variations and do not exceed the maximum temperature specified
when ordering the pump.
RESPECT THE MAX TEMPERATURE VALUES (BASED ON WATER) WITHIN
THIS MANUAL. If a hot or cold (temperature below 0°C) product is pumped, the pump must not
remain still, having the fluid inside it. We recommend to empty and clean the pump
thoroughly.
WARNING! For installation and operation of pump in a potentially explosive environment ,
comply with these general precautions:
• ascertain that the pumped fluid does not contain large solids and/or abrasives (see the technical
features)
•
ensure that the intake or discharge ports are not obstructed nor limited to avoid cavitation and
decrease in pump efficiency
•
check that the piping weight, including the internal fluid weight, will not damage the pump
connections
• if the pump is not in use for a long period of time, clean it carefully by running non-flammable liquid
detergent that is compatible with the construction materials through it
•
if the pump must be turned off for a long period of time, circulate clean water in it for some minutes
to avoid incrustations
• after the pump is not in use for a long period of time, clean the internal and external surfaces with a
damp cloth before starting, after eliminating any deposits
•
check the efficiency of the grounding; grounding provides an escape wire for the electrical current;
use only grounded hoses with a minimum length and having a cross-section of not less than 4 mm
2