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kyAlfa Laval MultiJet 25Rotary jet head for high-impact tank cleaning for industrial application

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IntroductionThe Alfa Laval MultiJet 25 is a rotary jet head tank cleaning machine foruse in industrial environments. Built to clean tanks with capacities from15 and 150 m3, it combines pressure and flow to create high-impactcleaning jets rotate in a repeatable and reliable 360-degree cleaningpattern.

.The MultiJet 25 minimizes the consumption of water and cleaningmedia. Easy to customize to meet customer requirements, it allowscompanies to spend less time cleaning and more time producing.

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ApplicationThe Alfa Laval MultiJet 25 is designed for the removal of the toughestresidues from industrial tanks across a broad range of industries, suchas the home care, chemical, pulp and paper, ethanol, starch, and oilindustries.

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Benefits• 60% faster cleaning = more time for production• Saves up to 70% of your cleaning cost• Eliminates the need for confined space entry for manual tank

cleaning• High-impact cleaning in a 360° repeatable cleaning pattern• Cleaning process can be validated using Alfa Laval Rotacheck

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Standard DesignThe choice of nozzle diameters can optimize jet impact length andflow rate at the desired pressure. A 2.1 material certificate and anATEX certification are available.

.Alfa Laval offers a wide range of tank cleaning machines suitable fordifferent duties and industries. An alternative that offers performancesimilar to the Alfa Laval MultiJet 25 is the Alfa Laval GJ PF, which isideal applications that require a small tank inlet opening.

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Working principleThe high-impact jet stream from the Alfa Laval MultiJet rotary jethead covers the entire surface of the tank interior in a successivelydenser pattern. This achieves a powerful mechanical impact with alow volume of water and cleaning media.

.The flow of the cleaning fluid makes the nozzles perform a gearedrotation around the vertical and horizontal axes. In the first cycle, thenozzles lay out a course pattern on the tank surface.

The subsequent cycles gradually make the pattern denser until at fullcleaning pattern is reached. Once the full cleaning pattern is reached,the machine will start over again and continue to perform the nextfull cleaning pattern.

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Certificates2.1 material certificate and ATEX.

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TECHNICAL DATA

Lubricant: Self-lubricating with the cleaning fluidMax throw length: 9 - 14 mImpact throw length: 4 - 8 m

PressureWorking pressure: 3 - 8 barRecommended pressure: 5 - 6.5 bar

Cleaning Pattern

First cycle Full pattern

The above drawings show the cleaning pattern achieved on a cylindrical horizontal vessel. The difference between the first cycle and the full patternrepresents the number of additional cycles available to increase the density of the cleaning.

PHYSICAL DATA

Materials316L (UNS S31603), Duplex steel (UNS N31803), Duplex steel (UNS S 21800), EPDM*, PEEK*, PVDF*, PFA** FDA compliance 21CFR§177

Surface finish: Exterior finish: Glass blasted

TemperatureMax. working temperature: 95°CMax. ambient temperature: 140°C

Weight: 5.1 kg.

ConnectionsStandard female thread: 1” Rp (BSP) or NPT

CautionAvoid hydraulic shock, hard and abrasive particles in the cleaning liquid, as this can cause increased wear and/or damage of internal mechanisms. Ingeneral, a filter in the supply line is recommended. Do not use for gas evacuation or air dispersion. For steaming we refer to the manual.

Flow Rate Impact Throw Lengthm3/h

5

10

2 3 4 5 6 7 8 bar

4xø5.5

4109

-000

0

15

l/min

250

200

150

100

50

4xø4.6

4xø3.9

Nozzles mm

Inlet pressure

m

5

10

2 3 4 5 6 7 8 bar

4xø5.5

4109

-000

1

15

4xø4.6

4xø3.9

4xø5.54xø4.64xø3.9

A

B

A

A

B B

Nozzles mm

Inlet pressureA: Wetting - B: Impact cleaning

Cleaning Time, Complete Pattern

5

10

2 3 4 5 6 7 8 bar

4xø5.5

4109

-000

2

15

4xø4.64xø3.9

8.07.0

RPM

6.0

5.04.5

4.0

3.5

3.0

2.5

Nozzles mmMin. RPM of machine bodyPTM (Pattering time minutes)

Inlet pressure

Dimensions

C E

D

A

F

G H

B

4108-0002

A B C D E F G Hmm 173 230 75 133 ø110 max. 25 ø150 ø200

TRAX simulation toolTRAX is a unique software that simulates how the Toftejorg MultiJet 25 performs in a specific tank or vessel. The simulation gives information onwetting intensity, pattern mesh width and cleaning jet velocity. This information is used to determine the best location of the tank cleaning machineand the correct combination of flow, time and pressure to implement.

A TRAX demo containing different cleaning simulations covering a variety of applications can be used as reference and documentation for tank cleaningapplications. A TRAX simulation is free and available upon request.

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Wetting Intensity

2.5

2.9

3.4

3.9

4.5

5.3

6.1

7.1

8.3

9.6

11

13

15

0.06

0.07

0.08

0.09

0.11

0.13

0.15

0.17

0.20

0.24

0.27

0.32

0.37

TD 523-208

(USgallon/ft2)

D4.6m H5.5m, Toftejorg MultiJet 25. 4 x ø5.5 mm, Time =2.08 min., Water consumption = 403 l

D4.6m H5.5m, Toftejorg MultiJet 25. 4 x ø5.5 mm, Time = 8.3min., Water consumption = 1612 l

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Alfa Laval reserves the right to change specifications without prior notification.

How to contact Alfa LavalContact details for all countriesare continually updated on our website.Please visit www.alfalaval.com toaccess the information direct.

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