MIL'S EVISA Serie Manual De Utilización página 13

Ensure that the pump is not installed near heat-radiating equipment or pipes.
If the vacuum pump is to be incorporated in machinery assemblies, ensure that
ventilation is adequate.
The vacuum pump will operate correctly only on a horizontal surface capable of
supporting the total mass of the pump and its accessories. Any operation on an inclined
surface may damage the pump. Moreover, the oil level reading may prove to be
incorrect. Make sure to install the pump so that the brand plate, the GAS BALLAST (if
present) and one of the oil gauges is visible and accessible.
Pump performance is modified above an altitude of 1000 metres (flow rate and final output pressure).
Consult us for further information.
2.2. Installation diagram
See annex
2.3. Long-term shutdown
If the vacuum pump is to remain out of service for a fairly long period of time (more than 3 months) or is not
going to be put into service until a later date, empty the pump, fill it with rust-inhibiting oil, run it for 10
minutes then drain off the rust-inhibiting oil. Blank the openings with adhesive tape; close the gas ballast if
present, store the pump in a dry place. The pump must not be stored in a place that is damp and/or subject to
large temperature variations.
2.4. Shipping
The machines must be correctly packed in their original packaging before shipping. It is preferable to secure
the package to a European pallet so that it cannot overturn. The pump must be drained before being shipped.
2.5. Mounting
The vacuum pumps have four silentblocs with tapped holes in the base: 4 x M8 for the E17/E25/E40 models, 2
x M8 (under the exhaust unit) and 2 x M10 (under the motor) for the E65/E100 models, and 4xM10 for the
E150/E200/E300 models. We recommend that you use these tapped holes to mount the pump on a base
frame.
2.6. Handling
Use the lifting rings provided for that purpose. Never place slings under the pump.
514400.14
EVISA E17/E25/E40/E65/E100/E150/E200/E300
3. INSTALLATION AND PUTTING INTO SERVICE
3.1. Installation
The suction and discharge ports are protected during transportation by caps and stickers. Remove these
protections before commissioning the pump.
3.1.1. Suction
Connect the suction intake to the process, preferably using a hose, after inserting filters as required. The hose
must withstand the final pressure (0.05 mbar absolute). The hose diameter should at least match the
connection diameter. Remember to seal the connections.
To protect the pump, it is recommended to install a filter or a separator upstream, connected to the suction
port. This filter must be fixed on the pump so that no solid particle or liquid penetrates the pump when
replacing the filter element.
The pump is equipped with a non-return check valve enabling to avoid any upwelling of oil if the enclosure
upstream of the suction port remains vacuumised when the pump stops. However, this check valve is not a
safety device. It is recommended to isolate the pump from the vacuum network when it is stopped. Install an
automatic isolating valve that closes when the pump stops, or a non-return check valve between the pump and
the enclosure.
Never operate the vacuum pump with an open suction port.
Pump performance will be reduced if the suction pipe is of too small a diameter and/or
too long.
The inlet pressure must not exceed the atmospheric pressure.
3.1.2. Exhaust
Do not restrict or close the exhaust opening. If the discharge is canalized, the section of
the piping must have an inside diameter equivalent to at least that of the pump's
discharge port. The pipes must be sized so that the pressure in the piping connected to
the discharge never exceeds 100mbar relative.
If several pumps are connected to the same exhaust piping, the section of the latter must at least be
equivalent to that of the sum of sections of the pumps' discharge ports. The manifold must be designed so
that, if condensation forms in the exhaust piping, it cannot return by flow to one of the pumps. It is
recommended to place a draining system at the lowest point of the discharge piping.Use a hose that
withstands heat and oil vapour to connect to the pipe.
If the discharge is connected to an extraction system, the relative pressure at the pump discharge must not
drop below -50mbar.
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