Gorman-Rupp Pumps 86A52-B 1329204 and up - Manual (Page 12)

80 SERIES OM−00941
PAGE B − 6 INSTALLATION
Air Release Valve Installation
The Automatic Air Release Valve must be inde-
pendently mounted in a horizontal position and
connected to the discharge line of the self-priming
centrifugal pump (see Figure 5).
NOTE
If the Air Release Valve is to be installed on a staged
pump application, position the air release valve as
close as possible to the discharge check valve.
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 5. Typical Automatic Air Release Valve Installation
The valve inlet line must be installed between the
pump discharge port and the non-pressurized side
of the discharge check valve. The valve inlet is at
the large end of the valve body, and is provided
with standard 1-inch NPT pipe threads.
The valve outlet is located at the opposite end of
the valve, and is also equipped with standard
1-inch NPT pipe threads. The outlet should be con-
nected to a bleed line which slopes back to the wet
well or sump. The bleed line must be the same size
as the inlet piping, or larger. If piping is used for the
bleed line, avoid the use of elbows whenever pos-
sible.
NOTE
It is recommended that each Air Release Valve be
fitted with an independent bleeder line directed
back to the wet well. If multiple Air Release Valves
are installed in a system, do not direct bleeder lines
to a common manifold 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 its power source is
critical for trouble-free mechanical operation. In
either a flexible coupling or V-belt driven system,
the driver and pump must be mounted so that their
shafts are aligned with and parallel to each other. It
is imperative that alignment be checked after the
pump and piping are installed, and before opera-
tion.