Bell & Gossett P2000452 Series 580 - Manual (Page 14)

Guideline Explanation/comment
Take into consideration the occurrence of unwanted
noise and vibration.
The best pump location for noise and vibration
absorption is on a concrete floor with subsoil
underneath.
If the pump location is overhead, undertake special
precautions to reduce possible noise transmission.
Consider a consultation with a noise specialist.
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.
Check Explanation/comment Checked
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 suction diffuser is installed.
This reduces suction turbulence by
straightening the flow of liquid before it
enters the pump.
Check that the suction and discharge pipes are
supported independently by use of pipe hangers
near the pump.
This eliminates pipe strain on the pump.
Check that there is a strong, rigid support for the
suction and discharge lines.
As a rule, ordinary wire or band hangers are
not adequate to maintain proper alignment.
For pumps with flanges, check that the bolt holes
in the pump flanges match the bolt holes in the
pipe flanges.
—
For pumps mounted in vertical piping with the
motor in the horizontal position, check that
adequate support is provided.
This prevents strain on the pump parts and
piping. Do not mount the pump with the
motor vertically downward. Do not use
motor lift rings to suspend the pump.
Check that the suction or discharge lines are not
forced into position.
Coupling and bearing wear will result if
suction or discharge lines are forced into
position.
The code for Pressure Piping (A.S.A.B.
31.1) lists many types of supports available
for various applications.
Check that fittings for absorbing expansion are
installed in the system when considerable
temperature changes are expected.
This helps to avoid strain on the pump.
Check that you have a foot valve of equal or
greater area than the pump suction piping when
you use an open system with a suction lift.
Prevent clogging by using a strainer at the
suction inlet next to the foot valve. Make
sure that the strainer has an area three times
that of the suction pipe with a mesh hole
diameter of no less than 0.25 in. (0.64 cm).
Check that flexible piping is used on both the
suction and discharge sides of the pump when
you use an isolation base.
—
Check that a properly sized suction strainer
conforming to NSF/ANSI Standard 50 is
installed in the suction line.
Prevents clogging. Make sure the strainer
has an area three times that of the suction
pipe with a mesh hole diameter of no less
than 0.25 in. (0.64 cm).
Installation
12 Series 580 Installation, Operation, and Maintenance Manual