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ky Powerful tank cleaning at a range of pressures and flows Alfa Laval A20 tank cleaning device Application The field-proven Alfa Laval A20 is part of the world-renowned range of Gamajet high impact tank cleaning devices. This tank cleaning device is designed to be flow-through, meaning no lubricant can pass through the gear train. It has been proven to provide companies with up to 85% in water, time, energy, and resource savings compared to static spray balls. This device is capable of cleaning tanks with capacities between 18.9 m³ - 94.6 m³ (5,000-25,000 gallons). The Alfa Laval A20 fits through openings as small as 10 cm (4”) and operates at low pressures and flows. By implementing this device into their tank cleaning process, companies spend less time cleaning and more time producing. Working principle The Gamajet range of high impact tank cleaning devices combine pressure and flow to create high impact cleaning jets. Cleaning occurs at the point at which the concentrated stream impacts the surface. It is this impact and the tangential force that radiates from that point which blasts contaminants from the surface, scouring the tank interior. In conjunction with this impact, the device is engineered to rotate in a precise, repeatable and reliable, 360° pattern. This fullcoverage, global indexing pattern ensures the entire tank interior is cleaned, . very time. e TECHNICAL DATA PHYSICAL DATA Lubricant
. . . . . . . . . . . . . . . . . . . Self-lubricating with the cleaning fluid Max. throw length . . . . . . . . . . . . . 14 - 20 m (45-65 ft.) Pressure Working pressure . . . . . . . . . . . . . . 3 - 28+ bar (40 - 400+ PSI) Recommended pressure . . . . . . . . . 4 - 20 bar (50 - 300 PSI) Cleaning Pattern
Materials 316L, PPS, PTFE, EPDM (FKM and FFKM available). Temperature Max. working temperature Max. ambient temperature
Weight . . . . . . . . . . . . . . . . . . . . . 4.5kg (10 lbs.) Surface finish . . . . . . . . . . . . . . . . 0.8 µm (32 Ra) Connections Standard thread Available option
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 pattern represents the number of additional cycles available to increase the density of the cleaning. Certificate 2.1 material certificate
. . . . . . . . 90°C (195°F) . . . . . . . . 140°C (284°F)
. . . . . . . . . . . . . . . 1½” Rp (BSP) or NPT, female . . . . . . . . . . . . . . . 1.5” weld, 1.5” tri-clamp, 1.5” ISO 2037 slip fit, 1.5” DIN R1 slip fit, 1.5” DIM R2 slip fit
Options Electronic rotation sensor to verify 3D coverage. Caution Do not use for gas evacuation or air dispersion.
Disclaimer: Information in this product data leaflet is intended for general guidance purposes. Specific data for device selection and sizing is available upon request. Flow Rate 2-nozzle
Flow Rate 4-nozzle
m 3/h USgpm
m 3/h USgpm
Nozzle 19.4
17.4
85
9.5mm (3/8")
26
115
Nozzle 9.5mm (3/8")
24
105 7.9mm (5/16")
75
7.9mm (5/16")
22
95
15.4 65 13.4
6.4mm (1/4") 55
85 18 75
11.4
16
45
65
9.4
7.4
5.4
3.4
6.4mm (1/4")
20
14
35 12
25
10
45
8
35
15 15
45
75
1
3
5
105 135 165 195 225 255 285 7
9
11
13
15
17
19
55
psi
15
45
75
105 135 165 195 225 255 285
psi
bar
1
3
5
7
bar
9
11
Inlet pressure
69 65
18
15
49
13.5
45
12 10.5
m.
ft.
11.5
38
10.5
35
9.5
2x ø6.4mm (1/4") 2x ø7.9mm (5/16") 2x ø9.5mm (3/8")
8.5
25
26 23 20 5.5 4.5
21 17 13
3
9
1.5
5
29
6.5
33 29
32
7.5
37
9
4.5
2x ø7.9mm (5/16") 2x ø9.5mm (3/8")
41
7.5 6
2x ø6.4mm (1/4")
57 53
19
Nozzle
61
16.5
17
Impact 4-nozzle
m. ft. 27 89 85 25.5 81 24 77 22.5 73 21
15
Inlet pressure
Impact 2-nozzle
19.5
13
0 0
25 1
2
50 3
75 4
5
100 6
7
125 8
9
150
175 psi
10 11 12
bar
Inlet pressure - - - Wetting, — Impact cleaning Custom inlets available. Contact your local Alfa Laval representative for details.
17 14
3.5
11
2.5
8
1.5
5 30
45
60
75
90
105 120 135 150 165 180 psi
2
3
4
5
6
7
8
9
10
11
Inlet pressure - - - Wetting, — Impact cleaning
12
bar
Cleaning Time rpm
min.
13.4 1.2
50
12.4 11.4
Dimensions 2-nozzle Stator
46 42 38
10.4
34
9.4 2
30
8.4
26
7.4 6.4
22 18 14
5.4 6
10
4.4 10
6
30 3.4
2
LM MV SML STD LP 20
30
4.5
6.5
40
50
8.5
60
70
80
90
100
10.5 12.5 14.5 16.5 18.5 20.5 22.5
USgpm m 3/h
Dimensions 4-nozzle
Dimensions low-profile
&
$
%
127(
' (
)
*
+
,
Dimensions 2-nozzle A B C D mm 272 204 175 44 in 10.70 8.01 6.88 1.73 NOTE 1: 1-1/2" FNPT/2" CAMLOCK OR 1-1/2" BSP/2" CAMLOCK
E 94 3.69
F 176 6.90
G 202 7.95
H 98 3.83
I 129 5.05
E 94 3.69
F 176 6.90
G 202 7.95
H 134.47 5.29
I 160.35 6.31
E 94 3.69
F 97 3.82
G 129 5.05
H 97 3.82
I 129 5.05
Dimensions 4-nozzle A B C D mm 272 204 175 44 in 10.70 8.01 6.88 1.73 NOTE 1: 1-1/2" FNPT/2" CAMLOCK OR 1-1/2" BSP/2" CAMLOCK Dimensions low-profile version A B C D mm 272 204 76 42 in 10.70 8.01 2.98 1.64 NOTE 1: 1-1/2" FNPT/2" CAMLOCK OR 1-1/2" BSP/2" CAMLOCK
Standard Design The choice of nozzle diameters can optimize jet impact length and flow rate at the desired pressure. As standard documentation, the Alfa Laval A20 can be supplied with a “Declaration of Conformity” for material specifications. TRAX simulation tool TRAX is a unique software that simulates how the Alfa Laval A20 performs in a specific tank or vessel. The simulation gives information on wetting intensity, pattern mesh width and cleaning jet velocity. This information is used to determine the best location of the tank cleaning device and 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 a reference and documentation for tank cleaning applications. The TRAX demo is free and available upon request. . Wetting Intensity
(US gallon/ft2)
0.06
2.5
0.07
2.9
0.08
3.4
0.09
3.9
0.11
4.5
0.13
5.3
0.15
6.1
0.17
7.1
0.20
8.3
0.24
9.6
0.27
11
0.32
13
0.37
15 TD 523-208
D9.1m (360”), H14.7m (580”), 2xØ7.94mm (2xØ5/16”) Time
D9.1m (360”), H14.7m (580”), 2xØ7.94mm (2xØ5/16”) Time
= 4.25 min.
= 17 min.
.
Alfa Laval reserves the right to change specifications without prior notification. ALFA LAVAL is a trademark registered and owned by Alfa Laval ESE03008EN 1015
How to contact Alfa Laval Contact details for all countries are continually updated on our website. Please visit www.alfalaval.com to access the information direct.
Corporate AB.
© Alfa Laval
