vacuubrand ME 16 NT, Инструкция по эксплуатации

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page 13 of 70
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Due to the high compression ratio, the pump may gen-
erate overpressure at the outlet. Check pressure com-
patibility with system components (e.g., exhaust pipe-
line or exhaust valve) at the outlet.
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Do not permit any
uncontrolled pressurizing
. Make
sure that the exhaust pipeline cannot become blocked.
If there is an exhaust isolation valve, make sure that you
cannot operate the equipment with the valve closed to
avoid a risk of bursting!
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Operation with silencer at the outlet
:
Use the silencer only in case of low gas throughput.
Operating the pump at a high inlet pressure or pump-
ing dusty gases for a long time may cause clogging of
the silencer. Check the silencer regularly for perme-
ability and replace if necessary, or install a hose nozzle
instead.
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Keep the electrical power cord away from heated sur-
faces.
• Provide a firm, level platform for the equipment. Check
that the system which you are going to evacuate is
mechanically stable. Check that all fittings are secure.
Ensure a stable position of the pump without any me-
chanical contact other than the pump feet.
• Comply with maximum permissible pressures at in-
let and outlet and with maximum permissible pres-
sure differences
between inlet and outlet. See sec-
tion “Technical data”, pg. 23”. Do not operate the
pump with overpressure at the inlet.
• Avoid overpressure of more than 17.5 psi absolute (1.2
bar absolute) in the event that inert gas is connected to
the pump, or to a venting valve.
• Note : Flexible elements will shrink when evacuated.
• Connect hoses gas tight at inlet and outlet of the pump.
• Ensure that no foreign objects can be drawn into the
pump.