Grundfos SMD User manual

SMD, SMG, SFG mixers and flowmakers
60 Hz, North America
Installation and operating instructions
SMD, SMG, SFG mixers and
flowmakers 60 Hz, North America
Installation and operating instructions
Other languages
http://net.grundfos.com/qr/i/99135312
GRUNDFOS INSTRUCTIONS

SMD, SMG, SFG mixers and flowmakers
English (US)
Installation and operating instructions ..........................................................4
Français (CA)
Notice d'installation et de fonctionnement ......................................................32
Español (MX)
Instrucciones de instalación y operación .......................................................62
Appendix A.............................................................................92
3
Table of contents

English (US) Installation and operating instructions
Original installation and operating instructions
Table of contents
1. Limited warranty ..........................4
2. General information ........................5
2.1 Hazard statements..........................5
2.2 Notes ..................................5
3. Product introduction........................6
3.1 Product description .........................6
3.2 Intended use .............................6
3.3 Applications ..............................6
3.4 Mixed liquids .............................6
3.5 Identification..............................8
4. Safety instructions ........................10
4.1 General safety instructions ....................10
4.2 Potentially explosive environments ...............10
4.3 Explosion-proof versions .....................10
4.4 Transporting the product .....................10
4.5 Electrical connection........................10
4.6 Priming the product ........................10
4.7 Maintenance ............................11
4.8 Fault finding .............................11
5. Receiving the product......................11
5.1 Transporting the product .....................11
5.2 Inspecting the product.......................11
6. Mechanical installation .....................12
6.1 Foundation .............................12
6.2 Mounting the product .......................12
6.3 Positioning of mixers and flowmakers .............12
7. Electrical connection ......................20
7.1 Wiring diagrams for SMG and SFG...............21
7.2 Wiring diagrams for SMD .....................23
7.3 Motor protection ..........................24
7.4 Gearbox or shaft seal housing protection ...........24
7.5 Starting method...........................24
7.6 Checking the direction of rotation ................25
7.7 Protection against electro-chemical corrosion ........25
7.8 Frequency converter operation .................25
8. Startup................................26
8.1 Priming the product ........................26
9. Service ...............................27
9.1 Maintenance ............................27
9.2 Repairing the product .......................27
9.3 Service chart ............................28
9.4 Oil ...................................28
10. Storing the product .......................29
11. Fault finding ............................30
12. Technical data ...........................31
12.1 Motor .................................31
12.2 Gearbox, SMG, SFG only ....................31
12.3 Shaft seals..............................31
12.4 Propeller ...............................31
12.5 Sound pressure level .......................31
13. Disposing of the product ....................31
1. Limited warranty
New equipment manufactured by seller or service supplied by seller
is warranted to be free from defects in material and workmanship
under normal use and service for a minimum of twelve (12) months
from date of installation, eighteen (18) months from date of
shipment, unless otherwise stated in product warranty guide
(available upon request). In the case of spare or replacement parts
manufactured by seller, the warranty period shall be for a period of
twelve months from shipment. Seller's obligation under this
warranty is limited to repairing or replacing, at its option, any part
found to its satisfaction to be so defective, provided that such part
is, upon request, returned to seller's factory from which it was
shipped, transportation prepaid. Parts replaced under warranty shall
be warranted for twelve months from the date of the repair, not to
exceed the original warranty period. This warranty does not cover
parts damaged by decomposition from chemical action or wear
caused by abrasive materials, nor does it cover damage resulting
from misuse, accident, neglect, or from improper operation,
maintenance, installation, modification or adjustment. This warranty
does not cover parts repaired outside seller's factory without prior
written approval. Seller makes no warranty as to starting
equipment, electrical apparatus or other material not of its
manufacture. If purchaser or others repair, replace, or adjust
equipment or parts without seller's prior written approval, seller is
relieved of any further obligation to purchaser under this paragraph
with respect to such equipment or parts, unless such repair,
replacement, or adjustment was made after seller failed to satisfy
within a reasonable time seller's obligations under this paragraph.
Seller's liability for breach of these warranties (or for breach of any
other warranties found by a court of competent jurisdiction to have
been given by seller) shall be limited to: (a) accepting return of such
equipment exw plant of manufacture, and (b) refunding any amount
paid thereon by purchaser (less depreciation at the rate of 15% per
year if purchaser has used equipment for more than thirty [30]
days), and canceling any balance still owing on the equipment, or
(c) in the case of service, at seller's option, redoing the service, or
refunding the purchase order amount of the service or portion
thereof upon which such liability is based. These warranties are
expressly in lieu of any other warranties, express or implied, and
seller specifically disclaims any implied warranty of merchantability
or fitness for a particular purpose, and in lieu of any other obligation
or liability on the part of the seller whether a claim is based upon
negligence, breach of warranty, or any other theory or cause of
action. In no event shall seller be liable for any consequential,
incidental, indirect, special or punitive damages of any kind. For
purposes of this paragraph, the equipment warranted shall not
include equipment, parts, and work not manufactured or performed
by seller. With respect to such equipment, parts, or work, seller's
only obligation shall be to assign to purchaser the warranties
provided to seller by the manufacturer or supplier providing such
equipment, parts or work. No equipment furnished by seller shall be
deemed to be defective by reason of normal wear and tear, failure
to resist erosive or corrosive action of any fluid or gas, purchaser's
failure to properly store, install, operate, or maintain the equipment
in accordance with good industry practices or specific
recommendations of seller, including, but not limited to seller's
installation and operation manuals, or purchaser's failure to provide
complete and accurate information to seller concerning the
operational application of the equipment.
4
English (US)

2. General information
Read this document before you install the product. Instal-
lation and operation must comply with local regulations
and accepted codes of good practice.
The use of this product requires experience with and
knowledge of the product.
Persons with reduced physical, sensory or mental capabil-
ities must not use this product, unless they are under su-
pervision or have been instructed in the use of the product
by a person responsible for their safety.
Children must not use or play with this product.
This booklet includes instructions for installation, operation and
maintenance of Grundfos SMD and SMG mixers as well as SFG
flowmakers in the non-explosion-proof version and SMD mixers in
the explosion-proof version. The Ex instructions must be followed
for the explosion-proof SMD. We recommend that you also follow
these instructions for standard mixers and flowmakers. These
products are designed for applications involving the mixing, i.e. the
homogenization and suspension of liquids of low to medium
viscosity ( ≤ 500 cP (500 mPas)).
There are separate installation and operating instructions
for the AMD.07.18.1410 mixer. See publication number
96526302 on www.grundfos.com.
2.1 Hazard statements
The symbols and hazard statements below may appear in Grundfos
installation and operating instructions, safety instructions and
service instructions.
DANGER
Indicates a hazardous situation which, if not avoided, will
result in death or serious personal injury.
WARNING
Indicates a hazardous situation which, if not avoided,
could result in death or serious personal injury.
CAUTION
Indicates a hazardous situation which, if not avoided,
could result in minor or moderate personal injury.
The hazard statements are structured in the following way:
SIGNAL WORD
Description of the hazard
Consequence of ignoring the warning
• Action to avoid the hazard.
2.2 Notes
The symbols and notes below may appear in Grundfos installation
and operating instructions, safety instructions and service
instructions.
FM
Observe these instructions for explosion-proof products.
A blue or gray circle with a white graphical symbol indi-
cates that an action must be taken.
A red or gray circle with a diagonal bar, possibly with a
black graphical symbol, indicates that an action must not
be taken or must be stopped.
If these instructions are not observed, it may result in mal-
function or damage to the equipment.
Tips and advice that make the work easier.
5
English (US)

3. Product introduction
3.1 Product description
The mixers are fitted with motors of 1.2 to 22 hp (0.9 to 16 kW).
The flowmakers are fitted with motors of 1 to 11 hp (0.7 to 8.0 kW).
2
5
20
4
3
7
11
9
10
TM065347
SMD Mixer
2
4
3
7
8
10
11
5
20
TM042710
SMG mixer
2
7
8
4
3
11
10
5
20
TM042755
SFG flowmaker
Pos. Description
2 Column profile
3 Depth blocker
4 Motor bracket
5 Top fixation bracket including safety wire
7 Motor housing
8 Gearbox
9 Clamping ring
10 Propeller
11 Hub
20 Wire clamp
3.2 Intended use
These mixers and flowmakers are designed for mixing in industrial
applications.
These products are designed for applications involving the mixing,
that is the homogenisation and suspension of liquids.
3.3 Applications
These mixers and flowmakers are intended to be used in the
following areas:
• municipal and industrial wastewater treatment
• industrial processes
• sludge treatment
• agriculture
• biogas plants.
3.4 Mixed liquids
Observe the following liquid limitations to avoid overloading and
exposing the mixers and flowmakers to corrosion.
Liquid temperature 41-104 °F (5-40 °C)
(140 °F (60 °C))1
pH value 4-10
Maximum dynamic vis-
cosity
SMD SMG,
SFG
250 cP (mPas)
500 cP (mPas)
Maximum density 66 lb/ft3 (1060 kg/m3)
Chloride content
≤ 200 ppm (200 mg/l) for
stainless steel 304
(1.4301)
Chloride content
≤ 1000 ppm(1000 mg/l)
for stainless steel 316
(1.4404)
1The liquid temperature range is stated on the nameplate.
For the mixing of liquids exceeding the values stated above, contact
Grundfos.
3.4.1 Mixers
Mixers are suitable for applications involving sludge with a typical
dry solids content as stated in the table below. Mixers are also
suitable for a wide range of other applications involving similar
liquids, such as slurry and paper pulp.
6
English (US)

% dry solid
SMD SMG, SFG
Activated sludge 0.5 %
Sludge in selector zones 0.5 %
Sludge in anoxic zones 0.5 %
Sludge in bivalent zones 0.5 %
Sludge in anaerobic zones 0.5 %
Primary sludge ≤ 3 %
Secondary sludge ≤ 4 % ≤ 6 %
Digested sludge ≤ 4 % ≤ 8 %
Sludge in wastewater tank with-
out screen ≤ 2 %
Sludge in wastewater tank with
sand ≤ 2 %
3.4.2 Flowmakers
Flowmakers are suitable for activated sludge with a typical dry
solids content of 0.5 to 1.0 % and for other liquids with a dry solids
content of maximum 1.5 %.
7
English (US)

3.5 Identification
3.5.1 Type key
Example: SMG.75.34.264.6.1H.
Code Explanation Designation
S SMD, SMG, SFG Type range
M Mixer Version
F Flowmaker
G Gear-driven Drive
D Direct-driven
75
Code from type designa-
tion / 10
7.5 hp
Motor output power P2
34 34 in Propeller diameter [in]
[ ] Standard
Application
M Mud, for high density
H Heavy duty, biogas plants
264 264 RPM Propeller speed [RPM]
[ ] Standard Installation method
T 2" thread connection
[ ] Non-explosion proof Explosion protection
Ex Explosion-proof
6 60 Hz Frequency [Hz]
0H 3 x 460 V, Y Supply voltage
1H 3 x 460 V, D
[ ] First generation
GenerationA Second generation
B Third generation
Z Custom-built product Customization
3.5.2 Nameplate
TM082520
Nameplate of SMD, SMG and SFG
3
TM082410
FM nameplate of SMD mixers
Pos. Description
1 Type designation
2 Product number and serial number
3 Liquid temperature range
4 Production site
5 Enclosure class according to IEC
6 Propeller diameter
7 Insulation class
8 Rated voltage
9 Rated speed (propeller)
10 Weight
11 Starting current
12 Frequency
13 Service factor
14 Number of poles
15 Rated current
16 Power factor
17 Motor power P1/P2
18 Production code
19 Maximum installation depth
20 Frequency range1
21 Switching frequency1
22 Torque application1
23 Ex markings and Ex certification number FM US
24 Ex markings and Ex certification number FM CA
1If a frequency converter is used.
At the installation site, fix the extra nameplate that is supplied with
the product. Make sure that the nameplate is visible.
8
English (US)

3.5.3 FM warning plate with restrictions
FM
Caution: For cord replacement, see instruction manual.
FM
Warning: To reduce the risk of ignition of hazardous at-
mospheres, do not open while circuits are live.
TM069369
FM warning plate
3.5.4 Approvals (cFMus)
The SMD mixers have been approved by FM, and the explosion-
proof versions hold FM Certificate of Conformity, numbers
FM17US0078X and FM17CA0043X.
3.5.5 Approval standards
The SMD mixers have been approved by FM according to:
Canadian standards
CSA-C22.2: No. 1, No. 0.4, No. 100, and No. 145, CAN/CSAC22.2:
No. 60079-0, No. 60079-1, and No. 60529.
United States standards
FM 3600, FM 3615, FM 3650, ANSI/ISA 60079-0, ANSI/UL
60079-1, and ANSI/IEC 60529.
Explanation of FM approval classification
The SMD mixers have the following explosion-protection
classification for the US market:
• Class I, Division 1, Groups C and D, T4, Ta = +5°C to +40°C,
IP68
• Class I, Zone 1, AEx db IIB T4 Gb Ta = +5°C to +40°C, IP68
The SMD mixers have the following explosion-protection
classification for the Canadian market:
• Class I, Division 1, Groups C and D, T4, Ta = +5°C to +40°C,
IP68
• Ex db IIB T4 Gb Ta = +5°C to +40°C, IP68
Code Description
Class I Explosive atmosphere caused by gas or va-
pors.
Division 1 Area classification: flammable material present
intermittently.
Zone 1 Area classification: flammable material present
intermittently.
Groups C and D Gas groups, ethylene and propane.
AEx Explosion protected based on American Na-
tional Standard.
Ex Explosion protected.
db Type of protection: flameproof.
IIB Gas groups: ethylene and propane.
T4 Maximum surface temperature is 275 °F (135
°C).
Gb Equipment protection level: gas atmosphere,
high level of protection.
Ta Ambient temperature.
IP68 Enclosure class according to IEC 60529.
9
English (US)

4. Safety instructions
4.1 General safety instructions
WARNING
Electric shock
Death or serious personal injury
‐Before starting any work on the product, make sure
that the fuses have been removed or the main switch
has been switched off. Make sure that the power sup-
ply cannot accidentally be switched on.
FM
To reduce the risk of ignition of hazardous atmospheres,
do not open while circuits are live.
Follow these safety instructions as well as the instructions
in each individual section when transporting, storing, han-
dling and operating the mixer or flowmaker.
The mixer or flowmaker must be installed, connected,
started up and serviced by qualified persons. Beware of
rotating parts.
DANGER
Fall hazard
Minor or moderate personal injury
‐Make sure that persons cannot accidentally fall into
the tank, e.g. by installing a cover or railing.
4.2 Potentially explosive environments
Use explosion-proof Grundfos mixers in potentially explosive
environments.
FM
The explosion protection classification of the installation
must be approved by the local authorities in each individu-
al case. See section 3.5.5 Approval standards.
FM
Special conditions for safe use of explosion-proof pumps:
• Make sure the moisture switch and thermal switches
are connected in two separate circuits, but have sepa-
rate alarm outputs (motor stop) in case of high humidi-
ty or high temperature in the motor.
• Contact the manufacturer for information on the di-
mensions of the flameproof joints.
FM
Additional conditions for safe use of explosion-proof
pumps
• Thermal protection in the stator windings guarantees
the disconnection of supply. Resetting of the supply
should be manual.
• The motor and connecting plug are provided with
property class A4-70 fasteners.
• The leakage system is electrically connected in ac-
cordance with the installation instructions.
• The mixer can be operated by an inverter.
4.3 Explosion-proof versions
FM
When using explosion-proof mixers, observe the following
safety regulations.
The motor temperature must always be monitored via the
built-in PTC or PTO (Klixon) sensors. The associated re-
lay must be certified for this use with safety level SIL 1. If
the relay is built in as part of a frequency converter, the
converter must also fulfil SIL.
Power cable
The factory-fitted power cable must not be shortened.
FM
Mixers must not be dismantled in an explosive atmos-
phere.
Soft starter and frequency converter
Only use soft starters and frequency converters if the FM
classification of these is higher than the one applying to the mixer,
and they are installed in accordance with the FM regulations.
Accessories
Only use the mixer together with accessories supplied and
approved by Grundfos.
Maintenance, service and repair
Only Grundfos or service workshops approved by Grundfos are
allowed to dismantle mixers. This also applies to the cable entry.
Use only components produced by Grundfos for repair purposes.
For inspection and maintenance, the standard ANSI/IEC 60079-17
must be considered and met.
Service log
Spare parts must be registered in a service log in order to have
100% traceability during the product life.
4.4 Transporting the product
Make sure that the mixer, flowmaker and accessories can-
not roll or fall over.
All lifting equipment must be rated for the purpose and
checked for damage before lifting the components. The
lifting equipment rating must under no circumstances be
exceeded.
Before lifting the components, make sure to comply with
any local regulations that set limits for the weights to be
lifted manually by individuals.
4.5 Electrical connection
DANGER
Electric shock
Death or serious personal injury
‐Mixers and flowmakers must be installed with an ex-
ternal “supply disconnecting device” that permits the
mixer or flowmaker to be locked in the OFF (isolated)
position. It must be manufactured and installed in a
position according to local requirements.
‐Before making any electrical connections, make sure
to remove the fuses or switch off the main switch.
Make sure that the power supply cannot be switched
on unintentionally.
4.6 Priming the product
CAUTION
Pressurized system
Minor or moderate personal injury
‐As pressure may have built up in the oil chamber, do
not remove the oil level screw until the pressure is re-
lieved.
Make sure that no persons can fall into the tank.
The mixer or flowmaker must always be submerged dur-
ing operation.
10
English (US)

4.7 Maintenance
CAUTION
Sharp element
Minor or moderate personal injury
‐Wear safety gloves when handling the product.
FM
Observe all regulations applying to mixers installed in po-
tentially explosive environments.
Make sure that no work is carried out in potentially explo-
sive environment.
Before starting work on the mixer or flowmaker make sure
that:
• the fuses are removed or the main switch is switched
off
• the power supply cannot be switched on unintentional-
ly
• all rotating parts have stopped moving.
CAUTION
Biological hazard
Minor or moderate personal injury
‐Flush the mixer or flowmaker thoroughly with clean
water and rinse the mixer or flowmaker parts in water
after dismantling.
4.8 Fault finding
Before starting work on the mixer or flowmaker,
• make sure that the fuses have been removed or the
main switch has been switched off
• make sure that the power supply cannot accidentally
be switched on
• make sure all rotating parts have stopped moving.
FM
All regulations applying to mixers installed in potentially
explosive environments must be observed.
Make sure that no work is carried out in potentially explo-
sive environments.
Keep a service log.
5. Receiving the product
5.1 Transporting the product
The individual components of the mixer or flowmaker must be
packed carefully to prevent any damage to the surface protection
during transportation.
Make sure that the mixer, flowmaker and accessories can-
not roll or fall over.
Before lifting the components, make sure to comply with
any local regulations that set limits for the weights to be
lifted manually by individuals.
All lifting equipment must be rated for the purpose and
checked for damage before lifting the components. The
lifting equipment rating must under no circumstances be
exceeded.
5.2 Inspecting the product
Do not install a damaged mixer or flowmaker.
Check the product and the accessories for any visible damage upon
delivery.
If the product or the accessories are damaged, contact Grundfos
immediately. Do not remove a damaged component, unless
instructed otherwise by Grundfos.
Make sure to comply with local regulations when disposing of the
package.
11
English (US)

6. Mechanical installation
6.1 Foundation
Lift the mixer or flowmaker by the suspension point. See figs
Mounting the lifting wire on the motor bracket and Mounting the
lifting wire on SMD.
15
4
TM042720
Mounting the lifting wire on the motor bracket
Pos. Description
4 Motor bracket
15 Lifting wire
TM065306
Mounting the lifting wire on SMD
Do not use the lifting equipment supplied with the unit nor
the wire used for lifting and lowering the mixer or flowmak-
er into the tank as universal lifting equipment.
Never hang the mixer or flowmaker by the power cable.
Never let the mixer or flowmaker run while hanging from
the lifting equipment.
Use the lifting equipment supplied with the unit only for lift-
ing the mixer or flowmaker.
For dimensions and weights, see A.1. Dimensions and weights.
6.2 Mounting the product
Make sure to use stainless steel nuts and bolts for installation.
Use grease or alu-paste with a locking nut for lubrication and
locking or, alternatively, use Loctite or a similar product.
Tighten all nuts and bolts to the following torques:
Bolts
ASTM F593 (V/W)
[lbf (Nm)]
1/4" (M6) 6.5 (8.8)
5/16" (M8) 15.8 (21.4)
7/16" (M10) 32.5 (44)
1/2" (M12) 54.6 (74)
5/8" (M16) 135 (183)
3/4" (M20) 273 (370)
6.2.1 Anchor bolts
Anchor bolts used for mounting components in concrete must have
the following pull-out strength:
Size Pull-out strength
[kipf (kN)]
1/2" (M12) 1.35 (6)
5/8" (M16) 3.15 (14)
6.3 Positioning of mixers and flowmakers
Correct positioning of mixers and flowmakers is essential to ensure
proper operation and long life.
6.3.1 Mixers
Submerge the mixer as deeply as possible.
• Place the mixer in such a way that you obtain a good mixing of
the liquid in the entire tank. If more mixers are installed in the
same tank, the mixers must not generate opposite flows.
• The distance between the propeller tip and the bottom of the
tank, HMIN in fig. Positioning sketch for mixers, must be half of
the propeller diameter.
•SMG: The distance from the propeller tip to the liquid
surface must be at least equal to the propeller diameter.
See HABOVE in fig. Positioning sketch for mixers.
•SMD: The distance from the propeller tip to the liquid
surface must be at least 1.5 times the propeller diameter.
See HABOVE in fig. Positioning sketch for mixers.
• The distance between the propeller tip and the wall behind the
mixer must be at least 1.5 times the propeller diameter. See
LMIN in fig. Positioning sketch for mixers
1
2
3
TM025917
Positioning sketch for mixers
12
English (US)

Pos. Description
1LMIN
2HABOVE
3HMIN
6.3.2 Flowmakers
Submerge the flowmaker as deeply as possible.
• The distance between the propeller tip and the bottom of the
tank must be 20 in (50 cm). See HMIN in fig. Positioning sketch
for flowmakers.
• The distance from the propeller tip to the liquid surface must be
at least 0.75 times the propeller diameter. See HABOVE in fig.
Positioning sketch for flowmakers.
• The distance between the propeller tip and the wall behind the
flowmaker must be at least twice the propeller diameter. See
LMIN in fig. Positioning sketch for flowmakers.
• The sideways distance between the propeller tip and the tank
wall must be at least 1.6 ft (0.5 m).
• If more flowmakers are to be installed in parallel, the distance
between their propellers must be larger than half the propeller
diameter.
• The distance from a channel bend to the propeller and from the
propeller to aeration areas must be at least the largest value of
the channel width and the liquid level.
1
2
4
3
TM025417
Positioning sketch for flowmakers
Pos. Description
1LMIN
2HABOVE
3HMIN
4HLIQUID
6.3.3 Installing a mixer
The mixer can be mounted in different ways depending on the
accessories:
• fixation bracket and tube for suspended mounting. See fig.
SMD.09 - 18.xx.xxxx.T.
• fixation bracket for wall mounting. See fig. SMD.09 -
18.xx.xxxx.T.
• fixation base for floor mounting. See fig. SMD.09 - 18.xx.xxxx.T.
• motor bracket for mounting on column profile. See fig. SMD and
SMG mixers.
TM065286
SMD.09 - 18.xx.xxxx.T
13
English (US)

13
12
5
18
20
2
19
4
3
1
15
17
TM042711
SMD and SMG mixers
Pos. Description
1 Bottom fixation bracket
2 Column profile
3 Depth blocker
4 Motor bracket
5 Top fixation bracket including safety wire
12 Crane foot
13 Crane with winch
15 Lifting wire including shackle and wire clamp
17 Cable clamp
18 Cable sock including shackle
19 Intermediate fixation bracket
20 Wire clamp
31 Hole for fastening the safety wire
See fig. SMD and SMG mixers.
Torques appear from section Mounting the product.
1. Drill the holes for the anchor bolts for the top fixation bracket.
2. Mount the anchor bolts, and fit the top fixation bracket.
3. Place the bottom fixation bracket in the right position, vertically
below the top fixation.
You can mount the bottom fixation bracket in any angle from
vertical to horizontal position.
4. Drill the holes for the anchor bolts for the bottom fixation
bracket.
5. Mount the anchor bolts, and fit the bottom fixation bracket.
6. Depending on the length of the column profile, weld the turnable
part of an intermediate fixation bracket (19, fig. SMD and SMG
mixers) to the column profile.
7. Position and align the column profile in the bottom fixation
bracket.
Shorten the column profile (2) to the correct length to match the
position of the insulator (C) at the top fixation bracket. A gap of
0.2 to 0.4 in (5 to 10 mm) between the collar of the insulator and
the column profile is optimal. See fig. Fixation.
A
20
C
B
2
31
3
TM042712
Fixation
Pos. Description
A, B Bolts
C Insulator
2 Column profile
3 Depth blocker
31 Hole for fastening a safety wire
8. Remove the insulator and the turnable metal part by removing
the center bolt (A) and the two fixation bolts (B).
9. Adapt the outside of the square insulator to the inside of the
column profile.
The insulator must fit tightly inside the column profile.
14
English (US)

10. Insert the column profile into the bottom fixation bracket, and
mount the top end with the insulator and the turnable metal part
on the already installed top fixation bracket.
Tighten the three bolts (A and B) in the desired position. You
can adjust the angle in steps of 7.5 °.
11. If you use an intermediate fixation bracket (19), fit it to the
turnable part welded on to the column profile in step 6.
Drill holes in the tank wall, fit bolts in the bracket and tighten the
bolts.
Make sure that the mixer cannot be turned so much
that the propeller touches the tank wall.
12. Fasten the depth blocker (3) in the right position.
13. Drill the holes for the anchor bolts for the crane foot (12, fig.
SMD and SMG mixers).
14. Mount the crane foot, and fit and tighten the bolts.
15. Mount the lifting wire (15) on the motor bracket using the
shackle. See fig. Attaching the power cable to the lifting wire.
16. Mount the top end of the safety wire to the hole (31) of the top
fixation bracket using a shackle.
The other end of the safety wire ends in a shackle through
which the lifting wire must run.
15
TM043932
Safety wire
17. Fix the power cable to the lifting wire by means of a cable clamp
approximately 2.6 ft (0.8 m) above the mixer.
This will prevent the cable from falling down and becoming
entangled in the propeller during operation. Connect the cable
clamp to the lifting wire above the wire clamp by means of a
snap hook. See fig. Attaching the power cable to the lifting wire.
Attach the power cable to the lifting wire by means of cable
clamps placed at 3.3 ft (1 m) intervals.
D
E
F
15
17
TM024938
Attaching the power cable to the lifting wire
Pos. Description
D Power cable
E Snap hook
F Wire clamp
15 Lifting wire
17 Cable clamp
18. Position the crane in the foot, and mount the lifting wire in the
drum of the winch.
At least three turns of wire must always remain on the
drum. Otherwise, the wire may break loose from the
drum fixation.
Follow the separate installation and operating instruc-
tions for cranes.
19. Lift the complete mixer and motor bracket with motor, using the
crane and slide it over the column profile.
20. Slowly lower the mixer into the tank and down to its position on
the depth blocker.
15
English (US)

21. Mount the cable sock (18) to the top fixation bracket using the
shackle, and pull the power cable through it to the desired
position.
See fig. Top fixation bracket with lifting and safety wires and
cable sock. The power cable must be slightly tightened.
20
18
31
B
TM043929
Top fixation bracket with lifting and safety wires and cable sock
Pos. Description
B Bolts
18 Cable sock
20 Fixation bracket
31 Hole for fastening a safety wire
Remove the lifting wire from the crane before starting
the mixer.
22. Remove the lifting wire from the winch and fit it to the wire
clamp (20, fig. Top fixation bracket with lifting and safety wires
and cable sock) on the top fixation bracket.
Use the lifting wire as a relief for the power cable. For this
reason, always tighten the lifting wire.
23. Check the distance between the propeller and the wall and the
propeller and the bottom of the tank when the motor bracket is
resting on the depth blocker.
The mixer must under no circumstances touch other
installations, the bottom or the wall. This also applies when the
mixer is turned. See section Positioning of mixers and
flowmakers.
DANGER
Electric shock
Death or serious personal injury
‐Before making any electrical connections, make
sure to remove the fuses or switch off the main
switch. Make sure that the power supply cannot be
switched on unintentionally.
24. Connect the power cable to the terminals in the control cabinet.
6.3.4 Installing a flowmaker
13
12
5
2
20
4
3b
1
3
3a
15
17
14
TM042714
SFG flowmaker
Pos. Description
1 Bottom fixation plate
2 Column profile
3 Depth blocker
3a Front support leg
3b Back support leg
4 Motor bracket
5 Top fixation bracket including safety wire
12 Crane foot
13 Crane with winch
14 Crane foot for vertical installation
15 Lifting wire including shackle and wire clamp
17 Cable clamp
20 Wire clamp
31 Hole for fastening a safety wire
Procedure
For torques, see section Mounting the product.
The propeller blades can be mounted before instal-
ling SFG.xx.71/91/102 or after the crane is installed.
16
English (US)

6.3.4.1 Mounting the propeller blades of SFG.xx.71 - 91
5
4
4
3
1
2
A
TM042715
SFG.xx.71 - 91
Pos. Description
A Blade position
1 Pin
2 Screw
3 Bolt
4 Washer
5 Nut
The fixation of the propeller blades is ensured by the pres-
sure of the clamping jaws which are tightened by the bolts
(3) and the nuts (5). The function of the pin (1) is to posi-
tion the blades in the right angle before tightening the
clamping jaws.
1. Check the premounted pins (1). These are only for positioning.
2. Tighten the screw (2) to widen the opening of the clamping jaws.
3. Insert the blade from above. Turn it slightly and let it rest on the
pin. Turn the blade back until the blade slides down and is flush
with the hub.
4. Remove the screw (2).
5. Put Loctite 243 threadlocker on the thread of the bolt (3).
6. Mount position 3, 4 and 5 in both holes and tighten by hand.
7. Tighten the nuts (5) with a torque wrench to 74 lbf (100 Nm)
(A4-80).
8. Check visually that the blade actually looks like position A in fig.
SFG.xx.71 - 91.
9. Apply silicone to the joint between the blade and the hub.
6.3.4.2 Mounting the propeller blades of SFG.xx.102
1
23
4
TM042716
SFG.xx.102
Pos. Description
1 Key
2 Screw
3 Cover plate
4 Washer
1. Drive the key (1) into the keyway for correct positioning of the
blades.
2. Apply a little oil to the blade shaft and the hole in the hub.
3. First put the cover plate (3) and then the washer (4) on the
screw (2).
4. Put Loctite 243 on the thread of the screw (2).
5. Turn the hub, and insert the blade from above.
6. Turn the blade to the correct position and let it slide into the hub.
7. Screw in the screw (2) by hand and tighten it with a torque
wrench to 135 lbf (183 Nm) (A2-70).
8. Carry out a visual check.
9. Apply silicone to the joint between the blade and the hub and
between the cover plate (3) and the hub.
6.3.4.3 All flowmakers
1. Weld the bottom fixation plate on the end of the column profile in
a workshop.
1
5
5
5
5
5
5
5
5
5
2
1
2a
a4
TM049089
Welding the column profile on to the bottom fixation plate
Pos. Description
1 Fixation plate
2 Column profile
5 Ribs
2a End of the column profile
The SFG.xx.51 bottom fixation plate does not have
ribs.
17
English (US)

2. SFG.xx.102: Place the depth blocker (3), the back support leg
(3b) and the front support legs (3a) in the right position, and
weld them on the column profile (2).
See position numbers in fig. SFG.xx.102, profile and support
legs, back view.
a4 x
3a
a4 αa4
TM063308
SFG.xx.102, profile and support legs, side view
Pos. Description
α min. 89.7 ° - max. 90 °
x 23.6"
3a front support legs
3a
a4
3b
1
2
3
TM063310
SFG.xx.102, profile and support legs, back view
Pos. Description
1 Fixation plate
2 Column profile
3 Depth blocker
3a, 3c Front support leg
3b Back support leg
3. SFG.xx.71 and SFG.xx.91: Place the depth blocker (3), the
back support leg (3b) and the front support legs (3a and 3c) in
the right position, and weld them to the column profile (2) in a
workshop.
See position numbers in fig. SFG.xx.71 - 91 profile and support
legs. Calculate the required height of the SFG depth blocker
according to the positioning rules for flowmakers. See section
Flowmakers.
3c
3a
a4
3b
1
2
3
TM063309
SFG.xx.71 - 91 profile and support legs
Pos. Description
1 Fixation plate
2 Column profile
3 Depth blocker
3a, 3c Front support leg
3b Back support leg
There must be a minimum overlap of 6 in (150 mm)
between the front support legs (3a and 3c). See fig.
SFG.xx.51 - 91 profile and support legs.
y
3c
3a
H
X
a4 β
α
a4
a4
TM063307
SFG.xx.51 37.8 in (960 mm) ≤ H ≤ 66.9 in (1700 mm)
SFG.xx.71 46.1 in (1170 mm) ≤ H ≤ 66.9 in (1700 mm)
SFG.xx.91 55.9 in (1420 mm) ≤ H ≤ 66.9 in (1700 mm)
Pos. Description
x 57.1"
α 45°
β min. 89.7 ° - max.90 °
3a, 3c front support leg
y 19.7"
H height
a4 β
TM063311
18
English (US)

a4
TM063312
SFG.xx.51 - 91 profile and support legs
4. SFG.xx.51: Place the depth blocker (3) and the front support
legs (3a and 3c) in the right position, and weld them to the
column profile (2) in a workshop.
See position numbers in fig. SFG.xx.71 - 91 profile and support
legs. Calculate the required height of the SFG depth blocker
according to the positioning rules for flowmakers. See section
Flowmakers.
The back support leg (3b) is not supplied for
SFG.xx.51.
There must be a minimum overlap of 6 in (150 mm)
between the front support legs (3a and 3c). See fig.
SFG.xx.51 - 91 profile and support legs.
5. Drill the holes for the anchor bolts for the top fixation bracket.
6. Mount the anchor bolts, and fit the top fixation bracket.
A
C
B
31
TM042719
Top fixation
Pos. Description
A, B Bolts
C Insulator
31 Hole for fastening a safety wire
7. Shorten the column profile (2 in fig. SFG.xx.102, profile and
support legs, back view and fig.SFG.xx.71 - 91 profile and
support legs) to the correct length to match the position of
insulator (C, fig. Top fixation) at the top fixation bracket.
A gap of 0.2 to 0.4 in (5 to 10 mm) between collar of insulator
and column profile is optimal. See fig. Top fixation.
8. Remove the insulator and the turnable metal part from the top
fixation bracket by removing the center bolt (A) and the two
fixation bolts (B).
See fig. Top fixation.
9. Adapt the outside of the square insulator to the inside of the
column profile. The insulator must fit tightly inside the column
profile.
10. Fit the turnable metal part, now fitted on top of the column
profile, to the already mounted top fixation bracket.
Tighten the three bolts (A and B in fig. Top fixation) in the
desired position. You can adjust the angle in steps of 7.5 °.
11. Drill the holes for the anchor bolts for the bottom fixation plates
in the bottom of the tank, and insert the bolts.
See fig. SFG.xx.102, profile and support legs, back view.
12. Tighten the anchor bolts in the bottom fixation plate.
13. Drill holes, mount and tighten the anchor bolts of the front and
back support legs as well.
14. Drill the holes for the anchor bolts for the crane foot in the
concrete.
15. Mount the crane foot, and fit and tighten the anchor bolts.
16. Mount the lifting wire (15) on the motor bracket (4) using the
shackle.
See fig. Mounting of the lifting wire on the motor bracket.
15
4
TM042720
Mounting of the lifting wire on the motor bracket
Pos. Description
4 Motor bracket
15 Lifting wire
17. Mount the top end of the safety wire to the hole (31 in fig. Top
fixation) of the top fixation bracket using a shackle.
The other end of the safety wire ends in a shackle through
which the lifting wire must run.
15
TM043932
Safety wire
19
English (US)

18. Fix the power cable to the lifting wire by means of a cable clamp
approx. 2.6 ft (0.8 m) above the flowmaker.
This will prevent the cable from falling down and becoming
entangled in the propeller during operation. Connect the cable
clamp to the lifting wire above the wire clamp by means of a
snap hook. See fig. Attaching the power cable to the lifting wire.
Attach the power cable to the lifting wire by means of cable
clamps placed at 3.3 ft (1 m) intervals.
D
E
F
15
17
TM024938
Attaching the power cable to the lifting wire
Pos. Description
D Power cable
E Snap hook
F Wire clamp
15 Lifting wire
17 Cable clamp
19. Position the crane in the foot, and mount the lifting wire in the
drum of the winch.
At least three turns of wire must always remain on the
drum. Otherwise, the wire may break loose from the
drum fixation.
Follow the separate installation and operating instruc-
tions for cranes.
http://net.grundfos.com/qr/i/96882862
20. Lift the complete flowmaker and the motor bracket with motor,
using the crane and slide it over the column profile.
21. Slowly lower the flowmaker into the tank and down to its
position on the depth blocker.
22. Mount the cable sock (18, fig. Top fixation bracket with lifting
and safety wires and cable sock) to the top fixation bracket
using the shackle, and pull the power cable through it, to the
desired position.
See fig. Top fixation bracket with lifting and safety wires and
cable sock. The power cable must be slightly tightened.
20
18
31
B
TM043929
Top fixation bracket with lifting and safety wires and cable sock
Pos. Description
B Bolts
18 Cable sock
20 Fixation bracket
31 Hole for fastening a safety wire
Remove the lifting wire from the crane before starting
the flowmaker.
23. Remove the lifting wire from the winch and fit it to the wire
clamp (20) on the top fixation bracket.
24. Use the lifting wire as a relief for the power cable. For this
reason, always tighten the lifting wire.
See fig. Attaching the power cable to the lifting wire.
25. Check the distance between the propeller and the wall and the
propeller and the bottom of the tank when the motor bracket is
resting on the depth blocker.
The flowmaker must under no circumstances touch other
installations, the bottom or the wall.
DANGER
Electric shock
Death or serious personal injury
‐Before making any electrical connections, make
sure to remove the fuses or switch off the main
switch. Make sure that the power supply cannot be
switched on unintentionally.
26. Connect the power cable to the terminals in the control cabinet.
7. Electrical connection
Electrical connections must be carried out by a qualified
electrician in accordance with local regulations.
Observe all national and local regulations relating to safety and
accident prevention.
DANGER
Electric shock
Death or serious personal injury
‐Mixers and flowmakers must be installed with an ex-
ternal “supply disconnecting device” that permits the
mixer or flowmaker to be locked in the OFF (isolated)
position. It must be manufactured and installed in a
position according to local requirements.
‐Before making any electrical connections, make sure
to remove the fuses or switch off the main switch.
Make sure that the power supply cannot be switched
on unintentionally.
20
English (US)