Xylem Flygt Top 50 User manual

Installation, Operation, and
Maintenance Manual
894192_14.0
Flygt Top

Table of Contents
1 Introduction and Safety........................................................................................................ 3
1.1 Introduction....................................................................................................................3
1.2 Safety terminology and symbols....................................................................................3
1.3 User safety.................................................................................................................... 4
1.4 Special hazards............................................................................................................. 4
1.4.1 Confined spaces..................................................................................................... 4
1.4.2 Biological hazards...................................................................................................4
1.4.3 Wash the skin and eyes..........................................................................................5
1.5 Protecting the environment............................................................................................5
1.6 Spare parts.................................................................................................................... 5
1.7 Warranty........................................................................................................................ 5
2 Transportation and Storage................................................................................................. 6
2.1 Precautions....................................................................................................................6
2.2 Position and fastening................................................................................................... 6
2.3 Examine the delivery..................................................................................................... 6
2.3.1 Examine the package............................................................................................. 6
2.3.2 Examine the unit..................................................................................................... 6
2.4 Transportation guidelines.............................................................................................. 7
2.4.1 Lifting...................................................................................................................... 7
2.5 Lift the unit..................................................................................................................... 7
2.6 Long-term storage......................................................................................................... 8
3 Product Description..............................................................................................................9
3.1 Products included.......................................................................................................... 9
3.2 Design........................................................................................................................... 9
3.2.1 Parts........................................................................................................................9
3.2.2 Intended use........................................................................................................... 9
3.2.3 Application limits................................................................................................... 10
3.2.4 Dimensions........................................................................................................... 10
3.2.5 Weight...................................................................................................................10
3.2.6 Materials............................................................................................................... 10
3.2.7 External loads....................................................................................................... 11
3.3 Pump versions.............................................................................................................11
3.4 Monitoring equipment.................................................................................................. 11
3.5 The data plate..............................................................................................................11
4 Installation.......................................................................................................................... 12
4.1 Precautions..................................................................................................................12
4.1.1 Underground utilities............................................................................................. 12
4.1.2 Excavations...........................................................................................................12
4.1.3 Inspect the work area before permit-required hot work........................................ 13
4.2 Installing the unit..........................................................................................................13
4.2.1 Prepare the site.....................................................................................................13
4.2.2 Prepare the pit base..............................................................................................14
4.2.3 Install the unit........................................................................................................14
4.2.4 Anchorage.............................................................................................................14
4.2.5 Connect the external piping.................................................................................. 15
4.2.6 Make the electrical connections............................................................................15
4.2.7 Installing the level sensors....................................................................................15
4.2.8 Install the control panel......................................................................................... 16
Table of Contents
Flygt Top Installation, Operation, and Maintenance Manual 1

4.2.9 Equipotential bonding........................................................................................... 16
4.2.10 Backfill.................................................................................................................16
4.2.11 Installing the access cover in vehicular traffic areas...........................................17
4.3 Install the pump........................................................................................................... 18
5 Operation........................................................................................................................... 20
5.1 Precautions..................................................................................................................20
5.2 Before commissioning................................................................................................. 20
5.3 Start the pump............................................................................................................. 21
6 Maintenance.......................................................................................................................22
6.1 Precautions..................................................................................................................22
6.1.1 Inspect the work area before permit-required hot work........................................ 23
6.2 Maintenance guidelines...............................................................................................23
6.3 Preventive maintenance.............................................................................................. 23
7 Declaration of Conformity...................................................................................................25
7.1 Declaration of Conformity............................................................................................ 25
Table of Contents
2 Flygt Top Installation, Operation, and Maintenance Manual

1 Introduction and Safety
1.1 Introduction
Purpose of the manual
The purpose of this manual is to provide the necessary information for working with the unit.
Read this manual carefully before starting work.
Read and keep the manual
Save this manual for future reference, and keep it readily available at the location of the unit.
Intended use
WARNING:
Operating, installing, or maintaining the unit in any way that is not covered in this manual
could cause death, serious personal injury, or damage to the equipment and the
surroundings. This includes any modification to the equipment or use of parts not provided
by Xylem. If there is a question regarding the intended use of the equipment, please contact
a Xylem representative before proceeding.
Other manuals
See also the safety requirements and information in the original manufacturer's manuals for
any other equipment furnished separately for use in this system.
1.2 Safety terminology and symbols
About safety messages
It is extremely important that you read, understand, and follow the safety messages and
regulations carefully before handling the product. They are published to help prevent these
hazards:
• Personal accidents and health problems
• Damage to the product and its surroundings
• Product malfunction
Hazard levels
Hazard level Indication
DANGER:
A hazardous situation which, if not avoided, will
result in death or serious injury
WARNING:
A hazardous situation which, if not avoided, could
result in death or serious injury
CAUTION:
A hazardous situation which, if not avoided, could
result in minor or moderate injury
NOTICE:
Notices are used when there is a risk of equipment
damage or decreased performance, but not
personal injury.
Special symbols
Some hazard categories have specific symbols, as shown in the following table.
1 Introduction and Safety
Flygt Top Installation, Operation, and Maintenance Manual 3

Electrical hazard Magnetic fields hazard
Electrical Hazard: CAUTION:
1.3 User safety
All regulations, codes, and health and safety directives must be observed.
The site
• Observe lockout and tagout procedures before starting work on the product, such as
transportation, installation, maintenance, or service.
• Pay attention to the risks presented by gas and vapors in the work area.
• Always be aware of the area surrounding the equipment, and any hazards posed by the
site or nearby equipment.
Qualified personnel
This product must be installed, operated, and maintained by qualified personnel only.
Protective equipment and safety devices
• Use personal protective equipment as needed. Examples of personal protective
equipment include, but are not limited to, hard hats, safety goggles, protective gloves and
shoes, and breathing equipment.
• Make sure that all safety features on the product are functioning and in use at all times
when the unit is being operated.
1.4 Special hazards
1.4.1 Confined spaces
DANGER: Inhalation Hazard
The chamber or tank where the equipment is installed should be treated as a confined
space. Always follow the applicable safety laws, regulations and guidelines for confined
spaces.
Never work alone in a confined space. Before entering the space, check that the following
requirements are complied with:
• The atmosphere contains sufficient oxygen
• The atmosphere contains no explosive or toxic gases
• If there is a risk of insufficient oxygen or toxic or hazardous gases, then use an airline
respirator or self-contained breathing apparatus.
• All energy sources are locked out and tagged out
• Adequate ventilation is in place
• There is a clear path of retreat
• Monitoring is in place for hazards which can develop after entering the confined space
• The applicable safety laws, regulations, and guidelines for confined spaces are
understood and followed.
1.4.2 Biological hazards
The product is designed for use in liquids that can be hazardous to your health. Observe
these rules when you work with the product:
• Make sure that all personnel who may come into contact with biological hazards are
vaccinated against diseases to which they may be exposed.
• Observe strict personal cleanliness.
1 Introduction and Safety
4 Flygt Top Installation, Operation, and Maintenance Manual

WARNING: Biological Hazard
Infection risk. Rinse the unit thoroughly with clean water before working on it.
1.4.3 Wash the skin and eyes
Follow these procedures for chemicals or hazardous fluids that have come into contact
with your eyes or your skin:
Condition Action
Chemicals or hazardous
fluids in eyes
1. Hold your eyelids apart forcibly with your fingers.
2. Rinse the eyes with eyewash or running water for at least
15 minutes.
3. Seek medical attention.
Chemicals or hazardous
fluids on skin
1. Remove contaminated clothing.
2. Wash the skin with soap and water for at least 1 minute.
3. Seek medical attention, if necessary.
1.5 Protecting the environment
Emissions and waste disposal
Observe the local regulations and codes regarding:
• Reporting of emissions to the appropriate authorities
• Sorting, recycling and disposal of solid or liquid waste
• Clean-up of spills
Exceptional sites
CAUTION: Radiation Hazard
Do NOT send the product to Xylem if it has been exposed to nuclear radiation, unless Xylem
has been informed and appropriate actions have been agreed upon.
1.6 Spare parts
CAUTION:
Only use the manufacturer’s original spare parts to replace any worn or faulty components.
The use of unsuitable spare parts may cause malfunctions, damage, and injuries as well as
void the warranty.
1.7 Warranty
For information about warranty, see the sales contract.
1 Introduction and Safety
Flygt Top Installation, Operation, and Maintenance Manual 5

2 Transportation and Storage
2.1 Precautions
DANGER: Electrical Hazard
Before starting work on the unit, make sure that the unit and the control panel are isolated
from the power supply and cannot be energized. This applies to the control circuit as well.
CAUTION:
The operator must be aware of safety precautions to prevent physical injury.
Tip risk if pallet straps are removed
If the straps securing the unit to its pallet have been removed, then the unit must be secured
from tipping or falling.
CAUTION: Crush Hazard
Make sure that the unit cannot roll or fall over and injure people or damage property.
2.2 Position and fastening
The unit is delivered in a horizontal or vertical position, depending on the size and length.
2.3 Examine the delivery
2.3.1 Examine the package
1. Examine the package for damaged or missing items upon delivery.
2. Record any damaged or missing items on the receipt and freight bill.
3. If anything is out of order, then file a claim with the shipping company.
If the product has been picked up at a distributor, make a claim directly to the distributor.
2.3.2 Examine the unit
1. Remove packing materials from the product.
Dispose of all packing materials in accordance with local regulations.
2. To determine whether any parts have been damaged or are missing, examine the
product.
3. If applicable, unfasten the product by removing any screws, bolts, or straps.
Use care around nails and straps.
4. If there is any issue, then contact a sales representative.
2 Transportation and Storage
6 Flygt Top Installation, Operation, and Maintenance Manual

2.4 Transportation guidelines
2.4.1 Lifting
Always inspect the lifting equipment and tackle before starting any work.
WARNING: Crush Hazard
Always lift the unit by its designated lifting points.
Use suitable lifting equipment and ensure that the product is properly harnessed.
Wear personal protective equipment.
Stay clear of cables and suspended loads.
NOTICE:
Never lift the unit by its cables or hose.
Lifting equipment
Lifting equipment is always required when handling the unit. It must fulfill the following
requirements:
• The minimum height (contact your local sales and service representative for information)
between the lifting hook and the floor must be sufficient to lift the unit.
• The lifting equipment must be able to hoist the unit straight up and down, preferably
without the need for resetting the lifting hook.
• The lifting equipment must be securely anchored and in good condition.
• The lifting equipment must support weight of the entire assembly and must only be used
by authorized personnel.
• Two sets of lifting equipment must be used to lift the unit for repair work.
• The lifting equipment must not be oversized.
CAUTION: Crush Hazard
Improperly-dimensioned lifting equipment can lead to injury. A site-
specific risk analysis must be done.
Separate handling of pump and unit
The unit and the pump are delivered separately. Never install a pump prior to lifting the unit.
Empty the unit before lifting
The unit must be emptied of liquid before lifting.
2.5 Lift the unit
1. Unload the unit from the truck and put it carefully on a rigid, horizontal surface.
WS007150A
Figure 1: Horizontal position
WS007149A
Figure 2: Vertical position
2. Remove the strapping around the horizontal tank.
Make sure that it cannot roll over.
3. Lift the unit to an upright position:
a) Attach a sling.
2 Transportation and Storage
Flygt Top Installation, Operation, and Maintenance Manual 7

WS007151A
Figure 3: Lifting eyes for sling
b) Lift the unit straight up.
The unit may jolt or sway near the end of the lifting operation.
WARNING: Crush Hazard
Always lift the unit by its designated lifting points.
Use suitable lifting equipment and ensure that the product is properly
harnessed.
Wear personal protective equipment.
Stay clear of cables and suspended loads.
WS007152A
2.6 Long-term storage
If the unit is stored for some time before installation, then make sure that it is placed in a
horizontal position or supported securely in a vertical position.
2 Transportation and Storage
8 Flygt Top Installation, Operation, and Maintenance Manual

3 Product Description
3.1 Products included
This document includes the following products:
• Top 50, 9050.010
• Top 65, 9065.010
• Top 80, 9080.010
• Top 100S, 9100.010
• Top 150S, 9150.010
• Top 150L, 9150.020
3.2 Design
The pump station unit is delivered complete with prefabricated inlet and outlet pipe
connections and a connection for an overflow pipe, if ordered. The pump is delivered
separately.
The unique design of the sump and the integrated pump discharge connections is
hydraulically optimized to improve the flow over the sump floor during pumping. This
increases turbulence and causes settled solids to become suspended again, maximizing
removal from the sump.
The pump is installed with twin guide bars with an automatic connection to the permanently
installed discharge connection at the bottom of the sump.
The unit is anchored also in subsoil water tables.
3.2.1 Parts
WS007148B
7
5
4
8
3
12
6
9
10
11
Figure 4: Installation example
1. Control panel
2. Access cover
3. Cable entry
4. Overflow
5. Level sensors
6. Outlet
7. Inlet
8. Pump
9. Shutoff valve
10. Check valve
11. Tank
3.2.2 Intended use
The unit is intended for pumping of raw or clean water, or wastewater.
3 Product Description
Flygt Top Installation, Operation, and Maintenance Manual 9

3.2.3 Application limits
For pump limitations, read the Installation, Operation, and Maintenance manual for the
pump.
The unit must be installed underground, outside of the building.
Data Description
Media (liquid) temperature Maximum 40°C (104°F)
pH of the pumped media 5.5–9
Unit depth Maximum 6 m (20 ft)
Other For other applications, contact the local sales and
service representative for information.
If installed according to this instruction, then the unit functions in a subsoil water table up to
the ground level.
3.2.4 Dimensions
Drawings
TOP 50 65 80 100 S 150 S 150 L
9050 9065 9080 9100.010 9150.010 9150.020
800 1000 1200 1400 1600 1800
1.5 - 6.0 m
WS007628B
∅ (mm)
Figure 5: Dimensional drawing. Diameter unit: mm. Length unit: m.
3.2.5 Weight
Approximate total weight, excluding the pump:
Table 1: Approximate total weights, excluding the pump
Model Weight, kg (lb)
2 m 4 m 6 m
Top 50 170 (375) 270 (595) 360 (794)
Top 65 320 (705) 470 (1036) 550 (1212)
Top 80 420 (926) 600 (1323) 820 (1808)
Top 100S 520 (1146) 700 (1543) 910 (2006)
Top 150S 760 (1676) 990 (2183) 1260 (2778)
Top 150L 830 (1830) 1080 (2381) 1360 (2998)
3.2.6 Materials
The unit is made of glass-fiber reinforced polymer, GRP.
3 Product Description
10 Flygt Top Installation, Operation, and Maintenance Manual

Polymer resin
The thermosetting resin that is used is unsaturated polyester and phenyl acrylate (vinyl
ester) resins of commercial grade.
Glass fiber reinforcement
The reinforcing material is glass fiber of a grade that complies with the technical
requirements of the application. It can be chopped or continuous roving strands, chopped
strand mat or woven roving.
Table 2: Glass fiber material standards
Material Standard
Roving of glass fiber ISO 2797
Chopped strand mat ISO 2559
Woven roving ISO 2113
Pipes
The unit is available with pipings in stainless steel.
The guide rails are stainless steel.
3.2.7 External loads
A unit with a GRP access cover must be installed so that traffic is kept at least 1 m (3.3 ft)
from the tank edge.
3.3 Pump versions
Depending on the type of unit, different pumps can be used.
For more information, please contact your local sales and service representative.
3.4 Monitoring equipment
Several pump protection and monitoring functions are available as options depending on the
version of equipment. For more information, please contact your local sales and service
representative.
3.5 The data plate
WS007147B
1234
5
1. Country of origin
2. Manufacturer
3. Size
4. Sales company prefix + product code + consecutive number
5. Production year and month
3 Product Description
Flygt Top Installation, Operation, and Maintenance Manual 11

4 Installation
4.1 Precautions
Before starting work, make sure that the safety instructions in the chapter Introduction and
Safety on page 3 have been read and understood.
DANGER: Inhalation Hazard
The chamber or tank where the equipment is installed should be treated as a confined
space. Always follow the applicable safety laws, regulations and guidelines for confined
spaces.
WARNING: Electrical Hazard
Risk of electrical shock or burn. A certified electrician must supervise all electrical work.
Comply with all local codes and regulations.
WARNING: Fall Hazard
Check that suitable barriers for the work area are in place.
Tip risk if pallet straps are removed
If the straps securing the unit to its pallet have been removed, then the unit must be secured
from tipping or falling.
CAUTION: Crush Hazard
Make sure that the unit cannot roll or fall over and injure people or damage property.
Sewage station tank ventilation
Vent the tank of a sewage station in accordance with local plumbing codes.
4.1.1 Underground utilities
Before starting excavation work, determine whether any utility installations such as sewer,
telephone, fuel, electric, or water lines, may be encountered. Utility companies and owners
must be contacted to locate utility installations.
When the excavation operations approach the estimated location of the underground
installation, the exact location must be determined by safe and acceptable means.
While the excavation is open, any underground installation must be protected, supported or
removed as necessary to safeguard employees.
4.1.2 Excavations
Before entering trenches, pits or other excavations, the following conditions must be met:
• The applicable safety laws, regulations, and guidelines for excavations are understood
and followed.
• Be aware that site conditions can change rapidly, for example due to heavy rain, rapid
thaw, vibrations or other factors.
• Do not work in an excavation or trench unless it is properly protected against collapse.
Examples of protection systems are shown in the following figures.
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12 Flygt Top Installation, Operation, and Maintenance Manual

WS007564A
Figure 6: Bracing and shoring
WS004325A
Figure 7: Shield box
• Regularly check the walls of an excavation or trench for cracks, bulges and spalling.
Check the shoring for signs of distress, especially after a rainstorm.
• Do not work in an excavation that is filled or partially filled with water. Remove personnel
from the excavation during a rainstorm, and inspect the excavation carefully before re-
entry.
• Do not store excavated material and equipment along the edge of the trench or
excavation. Do not drive or park vehicles along the edge of an excavation.
4.1.3 Inspect the work area before permit-required hot work
WARNING: Explosion/Fire Hazard
Before starting any permit-required hot work such as welding, gas cutting, grinding, or using
electrical handtools, do the following: 1. Check the explosion risk. 2. Provide sufficient
ventilation.
4.2 Installing the unit
• The contractor is responsible for ensuring that the installation follows the local regulations
and EN 976-2:1997.
• The unit must be installed underground, outside of the building.
• Dimensions in installation figures must be regarded as minimum dimensions.
4.2.1 Prepare the site
• Check that the following requirements are complied with:
– The excavation method of the pit must be adapted to the current soil conditions.
Considerations include slope stability and possible water drainage.
– Complicated soil conditions must be investigated by a geotechnical engineer.
• If the unit is installed in filled material of stony material, silt and clay, or in organic soil,
attach a separating layer of geotextile to the pit walls and bottom before backfilling and
compaction.
The geotextile prevents any material transportation from the backfill material into the soil.
• Refer to EN 976-2:1987 for demands on the quality of geotextile and installation method.
• Excavate in accordance with the minimum values.
Table 3: Approximate minimum diameter of excavation
Top version Ø (mm)
50 1500
65 1900
80 2300
100S 2700
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Flygt Top Installation, Operation, and Maintenance Manual 13

Top version Ø (mm)
150S 2900
150L 3200
4.2.2 Prepare the pit base
• Check that the pit bottom is even before preparing the base.
• Check that the base is flat, evenly compacted, and horizontally leveled before installing
the unit.
• Prepare a pit base as per the applicable requirement.
WS007153A
Figure 8: Pit base design
1. Compacted fill
2. Flange
3. Backfill
4. Concrete base, cast at site
5. Prefabricated concrete base
Top version Pit base requirement
50-65-80 Compacted sand
100–150 Prefabricated concrete base or concrete footing
case at site. See Anchorage on page 14.
4.2.3 Install the unit
1. Before installing the unit, visually check that the tank and the internal pipework are
undamaged.
2. Lift the unit on to the pit base in a vertical position and align it.
NOTICE:
Never lift the unit with a pump inside it.
Use both lifting eyes when lifting the unit.
WS007151A
3. Check that the unit is in level.
4.2.4 Anchorage
TOP 50-65-80 units are equipped with a horizontal flange at the bottom. The weight of
backfill material on the flange prevents the unit from floating up.
For TOP 100–150 units, the anchoring bars that are fixed to the unit must either be bolted to
a prefabricated concrete base or secured by a concrete footing cast at site.
Requirements for concrete footing:
• The minimum concrete quality is ENV 206, C30/37.
• To make sure sufficient anchorage, use concrete footing dimensions according to the
table.
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WS007153A
Table 4: Required dimensions for concrete footing
TOP version Minimum diameter F,
mm
Approximated concrete
volume, m3Height h: Minimum - Maximum, mm
100 S 2100 1.2 -1.6 450–550
150 S 2300 1.5–2.0 450–550
150 L 2600 2.0–2.5 450–550
Filling the unit with water up to a height of minimum 1500 mm (4.9 ft) gives sufficient
counterweight during casting.
4.2.5 Connect the external piping
Observe local regulations for frost penetration depth.
The unit is delivered complete with prefabricated inlet and discharge pipe connections as
well as connection for over-flow pipe, if ordered.
4.2.6 Make the electrical connections
Before making the electrical connections, read the Installation, Operation, and Maintenance
manual for the control panel carefully.
1. Check that the following requirements are complied with:
– The fuse in the power supply system must agree with the maximum permissible fuse
rating.
– The main voltage and frequency must agree with the specifications on the pump data
plate.
– When connecting inside the unit, remember that the environment is damp. Make sure
that suitable electrical protection is chosen accordingly.
– Do not allow the ends of the cable to be submerged in water. The water can be
sucked into the cable by capillary action.
– Appropriate support grips must be used for the cables inside the unit.
2. Install the level sensors.
See
Installing the level sensors on page 15.
3. Install the control panel.
See Install the control panel on page 16.
4.2.7 Installing the level sensors
NOTICE:
It is essential to ensure the proper functioning of level regulators in the unit.
Install the ENM-10
Make sure that there are two ENM-10 level sensors available for start and alarm.
Before installing the level sensor, read the level sensor manual carefully.
1. Hang the level sensors on the cable holder inside the tank.
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Flygt Top Installation, Operation, and Maintenance Manual 15

Use applicable support grips.
2. Adjust the height of the level sensors according to the installation drawing.
NOTICE:
It is essential to ensure the proper functioning of level regulators in the unit.
4.2.8 Install the control panel
1. Run the cables through the cable entry to the start and control panel.
The pump motor cable must be long enough to enable removal of the pump from the unit.
2. Connect the leads.
See the wiring diagram supplied with the control panel.
3. Install and connect the main supply cable to the control panel.
See the wiring diagram supplied with the control panel.
4.2.9 Equipotential bonding
The unit is prepared for protective equipotential bonding.
• Connect the upper guide bar holder and the protective grid or grids, if mounted, with a
separate earth wire.
• Connect the earth wire from the cabinet to the upper guide bar holder.
WS007154A
Figure 9: Upper guide bar holder with earth connection
4.2.10 Backfill
Compaction of the backfill must be thoroughly done to make sure that the surrounding
material provides support to the structure of the unit.
NOTICE:
Do not allow soil or gravel to get inside the unit.
Counteractive loads are achieved by dead load of the concrete footing and vertical earth
pressure on the concrete footing.
1. Check that the following requirements are fulfilled:
– The unit must be level after backfilling.
– Backfilling must be correctly made around inlet pipes, outlet pipes, and the unit
bottom.
– The pipe work and the electrical connections must be protected and supported during
backfilling so that no load is applied to them by the compaction operation.
– The backfill must not contain any contamination, such as snow or ice of significant
importance.
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Table 5: Physical properties of backfill material
Physical property Requirement
Grain size, diameter 0.06–20 mm (0.002–0.79 in)
Organic content < 2% by weight
Content of grains sized <0.06 mm (0.002 in) <15% by weight
Uniformity coefficient, CU = d60/d10 5–10
Water content, w 3–8%
2. Execute filling and compaction layer by layer around the unit, up the unit wall and up the
pit wall.
Minimum thickness of backfill around the unit 0.7 m (2.3 ft)
Layer thickness 0.15 m (6 in)
Table 6: Minimum thickness of backfill around the unit
Top version Thickness (mm)
50 300
65 400
80 500
100S, 150S 650
150L 700
Equipment Weight (kg) Layer thickness (mm) Number of passes for
each layer
Vibrating rammer 70 300 4
Vibrating plate
compactor
50 200 3
a) Start the compaction on the first layer by driving a light, vibrating machine around the
unit.
Cover the whole surface.
b) When the first pass is completed, then start the second pass.
c) When all the passes for a layer are completed, then fill the next layer.
d) Repeat the compaction procedure until all layers have been compacted.
4.2.11 Installing the access cover in vehicular traffic areas
In vehicular traffic areas, a concrete slab with access cover and frame must be used. The
design of the concrete slab and the purchase of the access cover with frame are the
responsibilities of the local consultant or contractor. The design of the concrete slab depends
on the type of load it will be exposed to.
Examples:
• Pedestrians, cyclists: 5 kN
• Private cars: 15 kN
• Light traffic: 80 kN
• Heavy traffic: 400 kN
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Concrete slab design
1
2
3
4
5
WS007155A
1. Concrete slab
2. Concrete ring stiffener
3. Ground level
4. Flexible sealing
5. Backfill
Recommended minimum dimensions
1
2
WS007156A
1. Pump
2. Slab
Pump type Circular Ø mm Rectangular (L x W) mm
• C/D 3057
• C/D/M 3068
• C/D/N 3085 HT, MT
• M 3085, 3102, 3127
600 600 x 350
• C 3085 LT
• C/D/N 3102 HT, MT, LT
• C/D/N 3127 HT, MT, SH
• C/D/N 3140 HT, MT
• C/D/N 3152 HT, MT
• N 3153 HT, MT
• N 3171 HT, MT
850 850 x 550
4.3 Install the pump
Before installing and using the pump, read the pump manual carefully.
Make sure that the impeller rotates in the correct direction before installing a 3-phase pump.
NOTICE:
Do not allow soil or gravel to get inside the unit.
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