OM-07116
SUPER T SERIES
PAGE B - 8
INSTALLATION
A manual shut‐off valve should not be installed
in any bypass line. A manual shut‐off valve may
inadvertently be left closed during operation. A
pump which has lost prime may continue to op
erate without reaching prime, causing danger
ous overheating and possible explosive rupture
of the pump casing. Personnel could be severe
ly injured.
Allow an over‐heated pump to completely cool
before servicing. Do not remove plates, covers,
gauges, or fittings from an over‐heated pump.
Liquid within the pump can reach boiling tem
peratures, and vapor pressure within the pump
can cause parts being disengaged to be ejected
with great force. After the pump completely
cools, drain the liquid from the pump by remov
ing the casing drain plug. Use caution when re
moving the plug to prevent injury to personnel
from hot liquid.
AUTOMATIC AIR RELEASE VALVE
When properly installed, a Gorman‐Rupp Auto
matic Air Release Valve will permit air to escape
through the bypass line and then close automati
cally when the pump is fully primed and pumping
at full capacity.
Some leakage (1 to 5 gallons [3.8 to 19
liters] per minute) will occur when the
valve is fully closed. Be sure the bypass
line is directed back to the wet well or
tank to prevent hazardous spills.
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 5). 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) DO NOT EX
TEND BELOW PUMP
OFF LIQUID LEVEL
Figure 5. Typical Automatic Air Release Valve Installation
