Operations & maintenance manual – ASTRA evo (DDE)
ARGALAIR 2020 | Rev. 6
22
1.7 FIRST START UP
•
Check the correct execution indicated in the INSTALLATION paragraph.
•
It is essential that the suction pipe is leak-proof for the pump self-priming operation.
•
Clean the system before connecting the pump.
•
The pump must not contain foreign bodies and all seals on the hydraulic connections must be
removed.
•
Check that all the screws are tightened.
•
The fluid discharge manifold must always be positioned at the upper part, considering the pump is
anchored with the feet on a horizontal plane.
•
Fasten securely the pump onto the floor.
•
Position the pump as close as possible to the point of suction.
•
It is recommended to start the pump
slowly
, especially if it is not filled with liquid at the beginning.
Remember that the suction capacity is greater when the pump runs slowly.
•
if the pump has been filled with liquid, the air pressure/flow may be raised in order to increase the
suction capacity of the pump. Remember that suction capacity is higher when pump runs slowly.
•
Check that the intake and discharge pipes of the hydraulic circuit are correctly connected.
•
Open the intake and discharge valves of the pump hydraulic circuit.
•
Open the 3-way valve of the air circuit.
•
The performance of the pump can be adjusted by using the air flow regulator valve and the
pressure reducer, supplied with the air regulation KIT. The performance can also be adjusted by the
two way valve on the discharge side of the system.
•
With supply pressure value below 2 bar, the pump may not work properly; with pressure value above
8 bar, the pump may breakdown and/or yields with consequential spillage of the pumped fluid.
•
To solve any deadlock situations:
1.
adjust the supply pressure above the 4 bar;
2.
stop the pneumatic supply via a three-way valve;
3.
supply the pneumatic supply again;
4.
the pump start again its regular functioning.
•
For pump with split manifold, the two fluids pumped must have the same viscosity; pumping fluids
with different viscosity may stall the pump and/or break the diaphragms. Different viscosities require
the pump rated point to be adjusted considering the most viscous fluid.
•
Do not operate at the limits of the operation curves: the maximum head or maximum flow.
•
Check that there are no anomalous vibrations or noise due to the too elastic support structure,
unsuitable fastening or cavitation.
•
After 2 hours of operation stop the pump correctly and check the tightening of all the screws on the
pump.
•
When installation is new or the pump is reinstalled, it is better to check the pump screws tightening
torque and to conduct a run test on the pump with water (to make sure that there are no leaks).
Summary of Contents for ASTRA Evo DDE 030
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Page 33: ...Operations maintenance manual ASTRA evo DDE ARGALAIR 2020 Rev 6 33 WR_ FC_ AL_ SS_ SP_ ...
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Page 53: ...Operations maintenance manual ASTRA evo DDE ARGALAIR 2020 Rev 6 53 SS_ SP_ WR_ FC_ AL_ K1 K3 ...
Page 55: ...Operations maintenance manual ASTRA evo DDE ARGALAIR 2020 Rev 6 55 DDE 030 DDE 060 DDE 100 ...
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