MODE OF DISCHARGE
Bell & Gossett Pumps can be installed to discharge up, down,
left or right. The oiling ports must always be in the twelve
o’clock position (on top) with motor and bearing assembly in a
horizontal position. THE ARROW ON THE PUMP BODY MUST
POINT IN THE DIRECTION OF THE FLOW. If it becomes nec-
essary to change the mode of discharge, refer to B&G
Instruction Manual HS-105-SM for specific instructions in
removing the motor and bearing assembly from the pump
body.
NOTE:
The position of the conduit box is determined by the
model of the motor used. The oiling ports must always be in
the up position.
3
WARNING: WATER LEAKAGE HAZARD
To prevent leakage, make certain that the flange
bolts have been adequately torqued. Failure to follow these
instructions could result in serious personal injury and/or
property damage.
PUMP LOCATION
Bell & Gossett Booster Pumps should be installed where there
will be sufficient room for future inspection, maintenance and
service. It is highly recommended that service valves (shut-off)
also be installed on each side of circulator pumps to facilitate
servicing or replacing the pump without draining the system.
IMPORTANT:
In closed systems, do not install and operate
Bell & Gossett pumps, 3D valves, suction diffusers, etc., with-
out properly sized safety and control devices. Such devices
include the properly sized and located pressure relief valves,
expansion tanks and pressure, temperature, and flow con-
trols. If the system is not equipped with these devices, consult
the responsible engineer or architect before operating.
PUMP SUPPORTING AND PIPING
Install the suction and discharge flanges on the pipe ends
using Teflon
®
* tape sealer or high quality thread sealant.
Minimize strain on the pump by supporting the suction and
discharge piping with pipe hangers near the pump. Line up the
vertical and horizontal piping so that the bolt-holes in both the
pump and pipe flanges are aligned. DO NOT ATTEMPT TO
SPRING THE SUCTION OR DISCHARGE LINES INTO POSI-
TION. THIS MAY RESULT IN UNWANTED STRESS IN THE
PUMP BODY, FLANGE CONNECTIONS AND/OR PIPING. The
code for pressure piping, ANSI B31.1, lists types of supports
for various applications.
Ordinary wire or band hangers are not adequate to maintain
alignment. It is very important to provide strong, rigid support
for the suction and discharge lines.
IMPORTANT:
Do not support the pump by its power pack. To
function properly, the motor power pack must not be strained.
PUMP FLANGES
New Bell & Gossett flanges gaskets must be installed between
the flanges of the pump body and suction and discharge
pipes. The gaskets should be clean and grease-free; old gas-
kets should never be reused.
Apply torque in even increments to both flange bolts until the
value listed in the table below is reached. Both the suction and
discharge flanges must be torqued in this manner.
PUMP INSTALLATION
WARNING: HOT WATER HAZARD
When disassembling a gasketed joint, always use
a new gasket upon reassembly. NEVER RE-USE OLD
GASKETS. Failure to follow these instructions could result
in serious personal injury, death and/or property damage.
OIL PORTS
*Teflon
®
is a registered trademark of E.I. DuPont de Nemours and Company.
100 With
Full Face
100 With Ring
Pump Series
Flange Gasket*
Flange Gasket
PR
HV
2"
Bolt Torque
150-180 in. lbs.
96-132 in. lbs.
96-132 in. lbs.
96-132 in. lbs.
96-132 in. lbs.
12.5-15 ft. lbs.
8-11 ft. lbs.
8-11 ft. lbs.
8-11 ft. lbs.
8-11 ft. lbs.
Full turns of
the nut from
1-1/4
1
1
3/4
3/4
finger tight
* No longer used.
WARNING: HOT WATER HAZARD
Make sure that each flange gasket remains seated in
the flange groove during and after installation. Failure to fol-
low these instructions could result in serious personal
injury, death and/or property damage.
