Operations & maintenance manual – ASTRA evo (DDE)
ARGALAIR 2020 | Rev. 6
24
2. SAFETY RISKS
2.0 GENERAL PRESCRIPTION
The pump must be installed according to local and national safety rules.
The pumps are constructed for particular applications. Do not use the pump on applications
different from that for which it was sold without consulting ARAGL to ascertain its suitability.
WARNING! CHEMICAL RISK.
Pumps are intended for operation with different types of fluids and
chemical solutions. Follow the specific internal instructions for decontamination during the
inspection or maintenance operations. If the pump has been used to pump aggressive,
dangerous or toxic liquids, in case of diaphragm rupture the fluid may enter and damage the
pneumatic circuit, and emerge from the discharge port.
Therefore, it is necessary to pipe the
air discharge to a safe area.
ARGAL recommends to use appropriate individual safety
equipment and protection equipment for the environment.
WARNING! ELECTRICAL RISK:
The pump installed in an explosive atmosphere must always be
earthed independently from other members connected to it. Connect a suitable earth wire to
the stainless steel earth connection that is placed on the inside of two pump casings. Connect
the other end of the earth wire to earth and also make sure that other equipment like
hoses/pipes/containers are properly earthed/connected. To avoid ignition hazards the
formation of dust deposits on the pumps must be prevented. In explosion proof areas,
maintenance/repair operations must be carried out only after a careful evaluation of the
practicability and with appropriate tools.
WARNING!
Safety requirements and explosion risk prevention,
in case the pump was installed in
an explosive atmosphere
are not fulfilled if the pump is not earthed or is incorrectly earthed or
the other equipment like hoses/pipes/containers are properly earthed/connected.
WARNING!
The diaphragms (in contact with the fluid pumped) are components highly
subjected to wear. The diaphragm service life is strongly affected by the operating conditions
and chemical and physical stresses. From the tests carried out on thousands of pumps installed
with temperature value from 0° to 18°C, the ordinary life of a diaphragm exceeded a lot of
million cycles. For safety reasons, in environment with explosion risk, it is necessary to
disassemble and check the diaphragms every 5 million cycles and replace them every 15
million cycles.
WARNING!
In situations where the user foresees the possibility of exceeding the temperature
limits indicated in this manual, it is necessary to install a protection device on the equipment to
prevent exceeding the maximum operating temperature allowed. If exceeded, respect to the
maximum marked temperature is not guaranteed.
CAUTION!
Safety risks to persons are mainly caused by improper usage or accidental damage
of the pump. These risks may be personal injury caused by operators working on an open
pump, or the nature of the fluids pumped by this type of pump. Therefore, it is extremely
important to diligently carry out all the instructions contain in this manual in order to eliminate
Summary of Contents for ASTRA Evo DDE 030
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