Russian translation: закачка с уровня ниже чем уровень где стоит насос
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12:32 Jul 24, 2005
English to Russian translations [PRO] Tech/Engineering - Mechanics / Mech Engineering
English term or phrase:suction lift
В словаре = высота всасывания, но перевод тогда корявый.КОНТЕКСТ:
НЕДОСТАТОЧНОЕ СОПРОТИВЛЕНИЕ НАГНЕТАНИЮ
A pump which is required to pump with a suction lift or with a fair length of suction pipe, but with practically
no resistance on the delivery side, (e.g. short, open-ended, discharge branch or nozzel), may pump briefly
then fail. The reason for this is that centrifugal pumps on open discharge need positive pressure on the
suction eye to prevent gross cavitation. If the installation does not provide sufficient positive pressure on the
suction side the pump will fail.
Brief Discharge Only
a) Air Lock
A pump with a suction lift and partial air lock will often start to pump at a greatly reduced rate after each
start, then give up altogether.
At the discharge end of the pipe this may appear as a brief surge followed by failure.
This problem can only be overcome by closer attention to the priming system.