TM 5-813-9
CHAPTER 5
PUMPING STATION LAYOUTS
5-1. General.
Pumps, piping, and equipment
which will be either a pipe penetration or a joint in
must be protected from the weather as dictated by
the concrete. Usually ground water should be at
local climatic conditions. In cold climates pumps
least one foot below the lowest point of entry. The
and piping must be protected from freezing and are
structural design layout will show design of pipe
usually completely housed in structures. In warm
anchors and pipe supports under pump operating
climates portions of stations may be located in
conditions, and foundations under heavy
outside enclosures which must provide protection
equipment. Structural steel will be provided to
from moisture and other weather related conditions.
support piping and conduit. Reinforced concrete
The impact of noise on the surrounding area and
bases raised above the floor will be provided for
the need for security fencing will be considered for
pumps, engine drives, large meters, large valves and
all stations. Structures will be fire-resistive
control devices, and floor mounted electric
construction, usually of reinforced concrete, steel,
equipment. Centrifugal pumps and driver will have
and masonry wall construction. Standard windows
common foundation and base plate. Refer to TM 5-
for unattended remote located stations may be
805-4 for noise and vibration control for equipment
deleted for security reasons, if other provisions
installations. Floors will slope to floor drains
such as skylights or high windows are made for
located around all pumps. Floor loading will
natural lighting or if artificial lighting is provided to
consider moving large equipment in and out for
assist periodic maintenance. The pumping
repair, maintenance, and replacement. Crane rails
equipment must be located so as not to be subject
and traveling overhead hoists will be provided in
to flooding. The site will be graded to drain surface
large pump station buildings where use of
water away from structures. Roadway access for
temporary or portable hoisting equipment is not
maintenance vehicles will be provided at all
practical for maintenance, repair, and equipment
equipment locations with space provided for vehicle
removal operations. Sufficient headroom must be
turn around. Buildings will be designed in
provided to allow equipment being removed to
compliance with local codes and regulations.
clear other equipment. A removable hatch, hinged
Building layouts must be designed logically
hatch, or removable roof panel may be considered
considering the sequence of installation of initial
for removal of vertical long stem equipment. Split
and future equipment if future expansion is planned.
floor levels will be avoided where possible. Where
Space will be provided for removing equipment for
different floor levels are necessary, standard stair
repair without interrupting other equipment.
design will be used and safety railing provided in
Equipment layouts must provide vertical and
accordance with OSHA standards.
horizontal clearances and access openings for
maintenance and repair operations. Usually, main
5-3. Mechanical Equipment. Equipment layout
aisles will be four feet minimum. Work place safety
will provide space for safe maintenance and opera-
of operating and maintenance personnel and
tion of equipment. A typical pumping piping layout
security of the facility will be considered in the
of a main pump station is shown in figure 5-1.
overall pump station design.
Valves, meters, gauges and control devices will be
located to be accessible without use of ladders, or
5-2. Structural Systems. The foundation design
use of chain wheels. Floors, gratings, and plates
will be based upon a soils analysis and recommen-
will be nonslip. Floor drains and pump gland drains
dations of a geotechnical engineer experienced in
will be provided in pump areas. Below grade
the field of soils mechanics and foundation design.
equipment structures which cannot be drained by
Information on ground water conditions and the
gravity piping will be provided with sump pumps.
classification of soil types will be obtained through
Engines may be located in separate buildings or in
borings at the pump station location. For below
outdoor enclosures in warmer climates. Engines
grade structures the soils survey will be performed
will be provided with adequate combustion air.
during the time of year when ground water is at its
Engines will have a cooling system, fueling system,
highest. Conditions to be considered in the design
lubrication system, electric starting system with
will be not only soil bearing qualities, but also soil
battery charging, safety controls, and instrument
swell potential and ground water infiltration into
and control panel as required for system operation.
the structure through the lowest point of entry
Fuel tanks will be located above ground where
5-1
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