Installation And Connections - Liberty Pumps PROVORE 380 Serie Manuel D'installation

3. Installation and Connections

A. Discharge: Using an adapter, connect the discharge pipe to the
threaded 2" port provided on the cover (or the 2 inch PVC stub in
side discharge models). IMPORTANT: NOTE: This ProVore
system is supplied with a 2" discharge outlet. Do not increase
the pipe size above 2" as adequate flow rates may not be
achieved for proper operation. Discharge sizes may be
reduced to 1-1/2" or 1-1/4". Contact Liberty Pumps if you have
questions regarding proper pipe sizes and flow rates.
Install the remaining discharge line.
applications, a union should be installed just above the cover to
facilitate pump removal. Side discharge applications have a
union pre-installed in the basin. A check valve is recommended
after the union to prevent the backflow of liquid after each
pumping cycle. A gate or ball valve should follow the check
valve to allow periodic cleaning of the check valve or removal of
the pump. The remainder of the discharge line should be as
short as possible with a minimum number of turns, to minimize
friction head loss. Contact Liberty Pumps or other qualified
person if there are questions regarding proper pipe size and flow
rates.
Vent: In vertical discharge models, a threaded 2" or 3"
B.
connection is provided on top of the cover on a vertical discharge
P380 SYSTEM or a 2" or 3" slip type Uni-Seal on a P680
SYSTEM; the vent must be piped to the existing building vent, or
extended outside on its own standpipe. The vent size should be
in accordance with applicable codes, but not less than the
discharge size. Side discharge models require venting per local
code.
Inspection /
Access Cover
In vertical discharge
P380 SIDE DISCHARGE SYSTEM
Discharge – 2" PVC Stub
INLET
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P380 SYSTEM
®
P680 SYSTEM
NAME PLATE
Model and serial number
2" PVC Hub Cord Exit
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