Gorman-Rupp Pumps T4B61S-B /F,/FM User Manual

Page 13

OM-05601

SUPER T SERIES

PAGE B - 6

INSTALLATION

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

_ 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.

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.