Piping Checklist - Xylem Bell & Gossett e-80 Series Instruction Manual

4 Installation
Guideline
Keep the pump as close to the liquid source as practically
possible.
If the pump is not on a closed system, locate the pump so
that the fewest number of bends or elbows in the suction
pipe are needed.
Make sure that the space around the pump is sufficient.
If you require lifting equipment such as a hoist or tackle,
make sure that there is enough space above the pump.
Protect the unit from weather and water damage due to
rain, flooding, and freezing temperatures.
Do not install and operate the equipment in closed
systems unless the system is constructed with properly-
sized safety devices and control devices.
Take into consideration the occurrence of unwanted noise
and vibration.
If the pump location is overhead, undertake special
precautions to reduce possible noise transmission.
When possible, locate the pump below the fluid level.

4.1.3 Piping checklist

WARNING:
• The heating of water and other fluids causes volumetric expansion. The associated
forces can cause the failure of system components and the release of high-
temperature fluids. In order to prevent this, install properly sized and located
compression tanks and pressure-relief valves. Failure to follow these instructions can
result in serious personal injury or death, or property damage.
• Avoid serious personal injury and property damage. Make sure that the flange bolts
are adequately torqued.
NOTICE:
Never force piping to make a connection with a pump.
Check
Check that a section of straight pipe, with a length that
is five times its diameter, is installed between the
suction side of the pump and the first elbow, or that a
B&G Suction Diffuser Plus is installed.
Check that the suction and discharge pipes are
supported independently by use of pipe hangers near
the pump .
Check that there is a strong, rigid support for the
suction and discharge lines.
12
Explanation/comment
This minimizes the friction loss and keeps the suction
piping as short as possible.
This facilitates ventilation, inspection, maintenance, and
service.
This makes it easier to properly use the lifting
equipment and safely remove and relocate the
components to a safe location.
This is applicable if nothing else is specified.
Acceptable devices:
• Pressure relief valves
• Expansion tanks
• Pressure controls
• Temperature controls
• Flow controls
If the system does not include these devices, consult the
engineer or architect in charge before you operate the
pump.
The best pump location for noise and vibration
absorption is on a concrete floor with subsoil
underneath.
Consider a consultation with a noise specialist.
This facilitates priming, ensures a steady flow of liquid,
and provides a positive suction head on the pump.
Explanation/comment
This reduces suction turbulence by
straightening the flow of liquid before it enters
the pump.
This eliminates pipe strain on the pump .
As a rule, ordinary wire or band hangers are not
adequate to maintain proper alignment.
Series e-80 INSTRUCTION MANUAL
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