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• The Sterimixer/Sanimixer operates with a fluid

having too high viscosity reducing the flow
through the bearings.

Chemical compatibility

To prevent hazardous reaction

between processed fluid and materials of construc-
tion the materials of construction shall be ensured
to be suitable for the application.

The Sterim-

ixer/Sanimixer incorporates different materials of
construction being specified in the technical docu-
mentation.

Start-up

Before start-up of the Sterimixer/Sanimixer the

following shall be controlled and verified:

• The Sterimixer/Sanimixer being correctly in-

stalled as per section 3.

• Materials of construction chosen are suitable for

the application.

• The application is within operating parameters

originally specified.

Assembly

The Sterimixer/Sanimixer shall be assembled

as per section 3.

Disassembly

The Sterimixer/Sanimixer shall be disas-

sembled as per section 3.

Maintenance

In addition to section 5 the following

should be observed:

Frequency

Action

Zone 1 daily, Zone 2

weekly

Verify the function of any
alarms applied.

Check

for unusual noise or vibra-
tions.

Every

two

years

or

9000 hours of operation,

whichever comes first

Replace

the

Sterim-

ixer/Sanimixer

with

a

new

or

professionally

refurbished

Sterim-

ixer/Sanimixer.

A used

Sterimixer/Sanimixer can
usually be refurbished,
it is therefore essential
to handle the mixer with
care to prevent unneces-
sary damage. Life time of
the Sterimixer/Sanimixer
depends on the applica-
tion, so shorter service
intervals may apply.

4.7.7. Special conditions which by experience have

proven likely to occur

• If the Sterimixer/Sanimixer is to be used within an-

other application than originally intended there will
be a risk of chemical incompatibility in between the

processed fluid and the materials of construction cre-

ating a possible hazard. Each and every application
shall be assessed individually to ensure the safety
conditions are maintained.

• If the Sterimixer/Sanimixer is subjected to poor lu-

brication this will create excessive wear and heat and
subsequently premature failure.

• If the Sterimixer/Sanimixer is incorrectly installed

conditions could very likely be similar to poor lubri-
cation creating excessive wear and heat and subse-
quently premature failure. It is therefore important
that the operator is properly trained and familiar with
all procedures.

• If the Sterimixer/Sanimixer is operated beyond its

operating limits severe damage might occur subse-
quently creating a failure. It is essential that the oper-
ator has received specific training together with the
full understanding of the Sterimixer/Sanimixer and
the education related thereto.

• If the weld plate has been incorrectly fitted to the ves-

sel, deformation can cause contact with the impeller
and/or magnetic rotor.

• Worn out bearings will cause physical contact in be-

tween the impeller and the weld plate. Specified
maintenance shall be performed.

• Through poor handling the magnetic rotor can be mis-

aligned causing physical contact between magnetic
rotor and weld plate. Always ensure the magnetic
rotor to be correctly aligned upon installation.

• If the impeller is subjected to excessive torque it might

uncouple the magnetic coupling. Ensure compliance

with operational limits and set-up specification.

• Fluids with high viscosity and/or containing parti-

cles can possibly clog the impeller’s flow channels
reducing the cooling and lubricating flow. The appli-
cations shall therefore be validated to ensure proper
function.

• Incorrect direction of rotation can cause the impeller

to decouple from the magnetic coupling. Ensure

proper direction of rotation as described in section

3.6.1.

4.7.8. Essential accessories

There are no additional important accessories required for

the use of Sterimixer/Sanimixer apart from those being

presented in this installation and operation manual.

4.7.9. Drawings and diagrams

No special drawings or diagrams are required for the safe
operation of the Sterimixer/Sanimixer apart from those
being presented in this installation and operation manual.

4.7.10. Maintenance and service

The Sterimixer/Sanimixer requires a minimum of mainte-

nance. Regular inspection of all parts, and any consequent
action is usually sufficient. See section 5.

5. MAINTENANCE

A used Sterimixer/Sanimixer can usually be refurbished,

it is therefore essential to handle the mixer with care to

prevent unnecessary damage. Life time of the Sterim-

ixer/Sanimixer depends on the application, so shorter
service intervals may apply.

12

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© Steridose

www.steridose.com

Содержание Sanimixer

Страница 1: ...4 Mounting and dismounting the drive unit 5 3 5 Connection to main power 6 3 6 Installation check and calibration 6 4 Operation 7 4 1 Allowed operating temperature range 7 4 2 Allowed pressure range 7 4 3 Chemical compatibility 7 4 4 Operational limits 7 4 5 Further operational advice 9 4 6 Guidance for sterilizing Sterim ixer Sanimixer 10 4 7 Specific information for the use of Sterim ixer Sanimi...

Страница 2: ... or indirectly create risks to the safety and health of the person undertaking the work or the Sterim ixer Sanimixer and or its components while the work is being undertaken It is the responsibility of the user to ensure that appro priate controls and precautions are identified and applied in relation to the work covered by this document in ac cordance with relevant statutory legal and industry re...

Страница 3: ...er is not to be in stalled immediately the Sterimixer Sanimixer should be repacked in the original package and stored in a suit n Figure 1 Mounting the bearing unit on the weld plate in the vessel The figure shows the bearing unit and the PTFE washer Use a torque wrench refer to table 2 for recommended torque able storage after receipt and inspection The following should be considered with regards...

Страница 4: ...ve unit and the magnet rotor are installed Failure to do so will cause a sudden attraction between the mounted rotor and the impeller causing the latter to violently hit the bearing assembly with likely bearing damage to occur CAUTION Before mounting the impeller make sure that the drive unit is NOT mounted on the vessel NOTICE To facilitate mounting and dismounting the impeller Steridose has deve...

Страница 5: ... driven gearbox flange and rotor some differences occur depending on type of drive and size Be certain that you can handle the weight of the drive unit Take a firm grip of the gearbox to balance the weight of the drive unit and to minimize the risk of damage caused by crushing when dismounting Use appropri ate lifting device for the larger models SM 120 190 and larger 3 4 1 Mounting the drive unit...

Страница 6: ...For AC drive applications The Sterim ixer Sanimixer starts at low speed 5 Visually check the direction of rotation for the im peller which should be clockwise when seen from above If the Sterimixer Sanimixer rotates counter clockwise refer to section 6 6 Stop the Sterimixer Sanimixer immediately after completed verification CAUTION Dry operation of the Sterimixer Sanimixer will damage the bearings...

Страница 7: ...Allowed pressure range Weld plate size Design pressure range All sizes 1 7 bar g 14 5 101 5 psig 4 3 Chemical compatibility The impeller and bearing are not to be exposed to strong chemicals Nominal pH range for tungsten carbide TC n Figure 6 Sterimixer Sanimixer should never be allowed to run dry n Figure 7 The bearing lubrication principle of the SMA type impeller bearings is 2 14 but silicon ca...

Страница 8: ...s IEC ATEX NEMA XP NEMA Stainless Steel etc this may vary Bearing materiala Tungsten Carbide Silicion Carbide Dri amond Chemical compatibility pH range 2 14b Best inert Same as silicon carbide Ease of installation and handling Best Harder than tungsten car bide but more brittle Somewhat better than sili con carbide Survivability under dry running conditions Good Poor Best lowest coefficient of fri...

Страница 9: ...optimum performance in cleaning in place CIP without any need for dismounting n Figure 9 Succesful cleaning of the impeller relies on a combination of the self cleaning flow through design of the SMA type impeller the cleaning agent used and respecting the prescribed time and temperature The flow channels in the impeller provide a process fluid flow through the bearings In order to achieve this th...

Страница 10: ...e drive unit and gearbox shall not be exposed to ambient temperatures above 40 C NOTICE Use caution when exposing to temperatures over 135 C as this may decrease the life expectancy of the elastomeres used in the bearing assembly A certain delay in the rise of temperature between the inside of the impeller and the vessel is caused by the mass of the impeller head This delay is influenced by Sterim...

Страница 11: ...nverter s set value speed exceeds 10 the drive is to be disabled interlocking In this case the magnetic field between the inner and outer magnetic rotor is broken indicating a malfunction 4 7 4 Assessment Components outside of the tank are in Ex zone 1 or 2 and are delivered with the corresponding ATEX declaration of conformity from the manufacturer Ex II 2G b c de IIC T4 The machine mixer tank wi...

Страница 12: ... lubri cation creating excessive wear and heat and subse quently premature failure It is therefore important that the operator is properly trained and familiar with all procedures If the Sterimixer Sanimixer is operated beyond its operating limits severe damage might occur subse quently creating a failure It is essential that the oper ator has received specific training together with the full unde...

Страница 13: ...e a year Note that the interval will be highly dependant on the application Remove and check the bearing and the impeller for signs of surface damage and general wear of the bear ings Change the bearing and the impeller if the surface is coarse or uneven scratched or if fragments have been knocked out from the bearing The impeller can be sent to Steridose for refurbishment Change the PTFE washer w...

Страница 14: ... female bear ing b Worn out bearings c Missing male bearing d Mechanical interference con tact between impeller and weld plate e Mechanical interference con tact between magnet rotor and weld plate a Stop the mixer Do not restart un til the fluid level covers the impeller b Replace the bearing and the im peller c see b d Reinstall the weld plate correctly e Realign the magnet rotor Noise from the ...

Страница 15: ...www steridose com Installation Operation 15 ...

Страница 16: ...sk for process interference Steridose partners with the best distributors and repre sentatives in the industry all over the world Together we become the perfect mix a premium product with global references combined with local presence for product and application support Steridose AB Himmelsbodavägen 7 SE 147 39 Tumba Sweden Phone 46 8 449 9900 info steridose com www steridose com Steridose Inc 502...

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