Gorman-Rupp Pumps 112D60-B-TCD914L6 1520501 and up - Manual (Page 13)

OM-06592 10 SERIES
PAGE B - 6 INSTALLATION
Consult the manual accompanying the Air Release
Valve for additional information on valve installation
and performance. Air Release Valve Installation
The Automatic Air Release Valve must be inde­
pendently mounted in a horizontal position be­
tween the pump discharge port
and the inlet side of
the discharge check valve (see Figure B-2). The
inlet opening in the Air Release Valve is equipped
with standard 1‐inch NPT pipe threads.
DISCHARGE PIPE
DISCHARGE
CHECK VALVE
PUMP DISCHARGE
SELF‐PRIMING
CENTRIFUGAL
PUMP
SUCTION
LINE
SUPPORT
BRACKET
CLEAN‐OUT
COVER
INSTALL AIR RELEASE VALVE
IN HORIZONTAL POSITION
90 _ LONG
RADIUS
ELBOW
WET WELL
OR SUMP
BLEED LINE 1”
(25,4 MM) DIA. MIN.
(CUSTOMER FUR­
NISHED) EXTEND 6”
(152 MM) BELOW
PUMP OFF LIQUID
LEVEL
Figure B-2. Typical Automatic Air Release Valve Installation
Connect the valve outlet to a bleed line which
slopes back to the wet well or sump. The bleed line
must be the same size as the outlet opening or
larger, depending on which Air Release Valve is be­
ing used. If piping is used for the bleed line, avoid
the use of elbows whenever possible.
NOTE
For multiple pump installations, it is recommended
that each Air Release Valve be fitted with an inde­
pendent bleeder line directed back to the wet well.
If multiple Air Release Valves are installed in a sys­
tem, do not direct bleeder lines to a common mani­
fold pipe. Contact your Gorman‐Rupp distributor or
the Gorman‐Rupp Company for information about
installation of an Automatic Air Release Valve for
your specific application.
ALIGNMENT
The alignment of the pump and engine is critical for
trouble‐free mechanical operation. The driver and
pump must be mounted so that their shafts are
aligned with and parallel to each other.
When mounted at the Gorman‐Rupp factory, driver
and pump are aligned before shipment. Misalign­
ment can occur in transit and handling. Pumps
should be checked, and realigned if necessary, be­
fore being put into operation. Before checking
alignment, tighten the hardware securing the
pump to the base.
The axis of the drive unit must be aligned to the axis
of the pump shaft in both the horizontal and vertical
planes. Most couplings require a specific gap or
clearance between the driving and the driven