Gorman-Rupp Pumps T6A65S-B /F,/FM - Manual (Page 13)

OM-05453 SUPER T SERIES
PAGE B - 6 INSTALLATION
pump can cause parts being disen­
gaged to be ejected with great force. Af­
ter the pump completely cools, drain the
liquid from the pump by removing the
casing drain plug. Use caution when re­
moving the plug to prevent injury to per­
sonnel 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 3). 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 3. 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.