WDM NE Series, Руководство по эксплуатации

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Operation Manual.
6
Always use the handle, and never the cord, to lift the pump.
Discharge (outlet) piping.
The discharge pipe should be as short as possible and fitted with
either a check or gate valve for each pump that uses the same line.
This valve is used to prevent backflow into the pump which can cause
excessive flooding and damage to the pump. The valve may also be
used to stop flow into the pump to help with priming and starting,
shutdown, maintenance, and pump removal.
•
The discharge gate valve should be closed before the pump
is shut down if check valves are used.
•
If the piping is short then it may be the same diameter as the
discharge opening.
•
Like the suction piping, discharging piping’s diameter should
be 1 - 2 sizes larger the longer the pipe.
•
If the discharge piping is horizontal, it is best to have an even
gradient.
•
Air or gas may get trapped in high points along the piping
which retards the pump’s operation.
The NE pump is designed to allow installation or removal without
requiring personal to enter the well. If need it you can use WDM slide
rail system (Sold separately, does not includes rails).
ATTENTION.
WDM does not supply all the accessories (valves, gauges,
pipes, extensions, etc.) mentioned in this manual.
WARNING.
.
Pumps and pipes should be supported independently and their
connections must never be forced. Doing so will generate
stress on the pump and cause the pump to fail.