PUMP HANDBOOK
50 Hz
Welcome to Grindex Pump handbook!
With this handbook we want to share some of our wide experience in pumping with sub-mersible pumps. You will find an overview of all Grindex pumps with technical details and a pump school, intended to help pump users with common matters in pumping with sub-mersible pumps. The handbook also contains more sophisticated technical information, like pH tables and graphs that show friction losses in pipes and hoses.
We are sure you will find this handbook handy. This handbook is also available for download from our website, www.grindex.com. If you need more copies, please contact Grindex.
INDex
Drainage pumps 4-16 Mini, Minex, Minette, Minor, Major, Master, Master SH, Matador, Maxi, Magnum, Mega
Sludge pumps 18-23 Solid, Salvador, Senior, Sandy
Drainage pumps made of stainless steel, INOx 24-29 Minette Inox, Major Inox, Master Inox
Sludge pumps made of stainless steel, INOx 30-35 Salvador Inox, Senior Inox, Sandy Inox
Slurry pumps 36-47 Bravo 200, 300, 400, 500, 600, 700, 800, 900
Accessories 48-49
Grindex Pump School 50-55
Limitations 56
More technical information 57-62 Calculating friction losses in hoses 57 Formulas for calculating friction losses in hoses and tubes 58 Friction factor 58 Sludge/slurry solids concentration 58 pH tables 59 Salt tables 59 Translation charts 60
Recommended generator sizes 61-62
Notes 63-66
4 | DRAINAGE PUMPS
Drainage pumpsGrindex drainage pumps are designed for professional use in tough applications like mines, construction sites, tunnel sites and other demanding industries.
They are designed for:
✔ Pumping water that may contain solids – up to the size of the strainer holes
✔ Pumping water with abrasive solids
✔ Pumping ground water
✔ Pumping raw water
✔ Pumping spillage water
Grindex drainage pumps are designed for continuous, unattended operation. They have proven their reliability and dependable performance in demanding areas like building and construction, mining, tunnelling, quarries, industries and rental applications.
DRAINAGE PUMPS | 5
MINI
0 1 2 3 4 5 6Q (l/s)
0
P (kW)1.2
00,20,40,60,8
11,2
5
10
15
20(m)H
Mini
Technical data 1~
Discharge connection 2”
Rated output 0,9 kW
Max power consumption 1,2 kW
Shaft speed 2800 RPM
Rated current at 230 V 5,2 A
Throughlet: 5x11 mm Weight: 14,5 kg Height: 440 mm Diameter: ∅ 185 mm
Specifications can be changed without notice.
6 | DRAINAGE PUMPS
MINex
Technical data Minex Lite 1~ 3~
Discharge connection 2” 2” 2”
Rated output 0,85 kW 1,4 kW 1,2 kW
Max power consumption 1,1 kW 1,8 kW 1,6 kW
Shaft speed 2755 RPM 2870 RPM 2740 RPM
Rated current at 230 V 5,1 A 7,8 A 4,7 A
Rated current at 400 V - - 2,6 A
Throughlet: ∅ 7,5 mm Weight: 21,5 kg (Lite, 3~), 25 kg (1~)
Height: 616 mm (Lite, 3~), 646 mm (1~) Diameter: ∅ 200 mm
Specifications can be changed without notice.
3~5
0
1,2
0,8
0,4
0
10
15
H (m)20
P (kW)1,6
0 2 4 6 8 10 12Q (l/s)
Minex Lite
Minex Lite 1~
1~3~
DRAINAGE PUMPS | 7
MINeTTe
Technical data 1~ 3~
Discharge connection 3” 3”
Rated output 1,5 kW 2,2 kW
Max power consumption 1,9 kW 2,7 kW
Shaft speed 2830 RPM 2800 RPM
Rated current at 230 V 8,4 A 8,1 A
Rated current at 400 V - 4,5 A
Throughlet: ∅ 9 mm Weight: 29 kg Height: 676 mm Diameter: ∅ 240 mm
Specifications can be changed without notice.
3~
1~
0
1~
3~
2 4 6 8 12 1410 16Q (l/s)
5
0
2,0
1,0
10
15
20
H (m)25
0
P (kW)3,0
8 | DRAINAGE PUMPS
MINOR
Technical data N H
Discharge connection 4” 3”
Rated output 3,7 kW 3,7 kW
Max power consumption 4,4 kW 4,4 kW
Shaft speed 2885 RPM 2885 RPM
Rated current at 400 V 7,3 A 7,3 A
Rated current at 500 V 5,4 A 5,4 A
Throughlet: ∅ 10 mm Weight: 50 kg Height: 768 mm Diameter: ∅ 286 mm
Specifications can be changed without notice.
N
H
NH
10
0
43
12
0
20
30
H (m)40
P (kW)5
0 5 10 15 20 3025 35Q (l/s)
DRAINAGE PUMPS | 9
MAjOR
Technical data N H
Discharge connection 4” 3”
Rated output 5,6 kW 5,6 kW
Max power consumption 6,6 kW 6,6 kW
Shaft speed 2895 RPM 2895 RPM
Rated current at 400 V 11 A 11 A
Rated current at 500 V 8,7 A 8,7 A
Throughlet: ∅ 10 mm Weight: 50 kg Height: 768 mm Diameter: ∅ 286 mm
Specifications can be changed without notice.
N
H
10
0
56
43
12
0
20
40
30
H (m)50
P (kW)7
0 5 10 15 20 30 3525 40Q (l/s)
H
N
10 | DRAINAGE PUMPS
MASTeR
Technical data N H
Discharge connection 6” 4”
Rated output 10 kW 10 kW
Max power consumption 11,7 kW 11,7 kW
Shaft speed 2855 RPM 2855 RPM
Rated current at 400 V 21 A 21 A
Rated current at 500 V 15 A 15 A
Throughlet: ∅ 10 mm Weight: 80 kg Height: 832 mm Diameter: ∅ 346 mm
Specifications can be changed without notice.
N
H
10
0
1086
24
0
20
50
40
30
H (m)60
P (kW)12
0 10 20 40 5030 60Q (l/s)
HN
DRAINAGE PUMPS | 11
MASTeR SH
Technical data SH
Discharge connection 3”
Rated output 10 kW
Max power consumption 11,7 kW
Shaft speed 2855 RPM
Rated current at 400 V 21 A
Rated current at 500 V 15 A
Throughlet: ∅ 10 mm Weight: 98 kg Height: 887 mm Diameter: ∅ 346 mm
Specifications can be changed without notice.
0 5 10 15 20
Q (l/s)
0
20
40
60
80
100H (m)
12P (kW)
02468
10
12 | DRAINAGE PUMPS
MATADOR
Technical data N H
Discharge connection 6” 4”
Rated output 18 kW 18 kW
Max power consumption 20 kW 20 kW
Shaft speed 2905 RPM 2905 RPM
Rated current at 400 V 33 A 33 A
Rated current at 500 V 26 A 26 A
Throughlet: ∅ 12 mm Weight: 133 kg Height: 954 mm Diameter: ∅ 395 mm
Specifications can be changed without notice.
10
0
15
5
10
0
20
60
50
40
30
H (m)70
P (kW)20
0 20 40 8060 100Q (l/s)
N
N
H
H
DRAINAGE PUMPS | 13
MAxI
80
0
30
10
20
0
20
60
40
H (m)100
P (kW)40
0 50 100 200150 250Q (l/s)
N L
NL
H
H
Technical data N H L
Discharge connection 8” 4” 8”
Rated output 37 kW 37 kW 30 kW
Max power consumption 41 kW 41 kW 33 kW
Shaft speed 2950 RPM 2950 RPM 1465 RPM
Rated current at 400 V 65 A 65 A 57 A
Rated current at 500 V 52 A 52 A 45 A
Throughlet: ∅ 12 mm Weight: 285 kg Height: 1345 mm Diameter: ∅ 510 mm
Specifications can be changed without notice.
14 | DRAINAGE PUMPS
MAGNUM
80
0
30
1020
60
4050
0
20
60
40
H (m)100
P (kW)70
0 50 250 300150 200100 350Q (l/s)
N
L
N
L
H
H
Technical data N H L
Discharge connection 8” 6” 10”
Rated output 57 kW 57 kW 57 kW
Max power consumption 62 kW 64 kW 62 kW
Shaft speed 1475 RPM 2950 RPM 1475 RPM
Rated current at 400 V 107 A 98 A 107 A
Rated current at 500 V 85 A 79 A 85 A
Throughlet: ∅ 12 mm Weight: 540 kg Height: 1475 mm Diameter: ∅ 750 mm
Specifications can be changed without notice.
DRAINAGE PUMPS | 15
MeGA
Technical data N H
Discharge connection 6” (DN150) 4” (DN100)
Rated output 90 kW 90 kW
Max power consumption 95 kW 95 kW
Shaft speed 2965 RPM 2965 RPM
Rated current at 400 V 148 A 148 A
Rated current at 500 V 117 A 117 A
Weight: 900 kg (N), 985 kg (H) Height: 770 mm (N), 1245 mm (H)
Width: 1180 mm (N), 680 mm (H) Diameter: ∅ 610 mm Throughlet: 10x10 mm
Specifications can be changed without notice.
150
0
20
6040
80
0
50
100
H (m)200
P (kW)100
0 20 120100 14060 8040 160Q (l/s)
N
HN
HN
H
16 | DRAINAGE PUMPS
MaterialUpper seal
Tungsten carbide - Tungsten carbide
● ● ● ●
Tungsten carbide - Aluminium oxide
● ● ● ● ● ●
Carbon - Aluminium oxide ●
Lower seal
Tungsten carbide - Tungsten carbide
● ● ●
Silicon carbide - Silicon carbide
● ● ● ● ● ● ● ●
Casted parts
Aluminium ● ● ● ● ● ● ● ● ● ●
Cast iron ●
Stator housing
Aluminium ● ● ● ● ● ● ● ● ● ●
Cast iron ●
Outer casing
Stainless steel ● ● ● ● ● ● ● ● ●
Aluminium ●
Cast iron ●
Specifications can be changed without notice.
Min
i
Min
ex
Min
ette
Min
or
Maj
or
Mas
ter
Mas
ter
SH
Mat
ado
r
Max
i
Mag
num
Meg
a
Materials in drainage pumps
DRAINAGE PUMPS | 17
Material
Motor shaft
Stainless steel ● ● ● ● ● ● ● ● ● ● ●
Impeller
Hard-Iron™ ● ● ● ● ● ● ● ● ● ●
Polyurethane ●
Suction cover
Hard-Iron™ 3~ ● ● ● ● ●
Lower diffuser
Nitrile rubber ○ ●
Polyurethane ● ● ● ○
Diffuser ring
Nitrile rubber ● ● ● ● ● ● ● ○ ●
Polyurethane ● ○ ○ ○ ○ ○ ● ● ○
Screws and nuts
Stainless steel ● ● ● ● ● ● ● ● ● ● ●
O-rings
Nitrile rubber ● ● ● ● ● ● ● ● ● ● ●
Specifications can be changed without notice. ● Standard ○ Option
Min
i
Min
ex
Min
ette
Min
or
Maj
or
Mas
ter
Mas
ter
SH
Mat
ado
r
Max
i
Mag
num
Meg
a
18 | SlUDGE PUMPS
Sludge pumpsGrindex sludge pumps are designed for professional use in tough applications like mines, construction sites, tunnel sites and other demanding industries.
They are designed for:
✔ Pumping water with high content of solids, up to the size of 80 mm.
✔ Pumping water which contains abrasive particles
✔ Pumping different types of mud and sludge
✔ Pumping light slurry
The pumps are designed for continuous, unattended operation. They have proven their reliability and dependable performance in demanding areas like building and construction, mining, tunnelling, quarries, industries, car washes and rental applications.
SlUDGE PUMPS | 19
SOLID
Technical data 1~
Discharge connection 2”
Rated output 0,9 kW
Max power consumption 1,2 kW
Shaft speed 2800 RPM
Rated current at 230 V 5,2 A
Throughlet: ∅ 38 mm Weight: 17 kg Height: 510 mm
Width: 280 mm Diameter: ∅ 200 mm
Specifications can be changed without notice.
10
8
0
0,4
0,81,0
0,2
0,6
0
4
2
6
H (m)12
P (kW)1,2
0 3 6541 2 7Q (l/s)
20 | SlUDGE PUMPS
SALVADOR
Technical data 1~ 3~
Discharge connection 3” 3”
Rated output 1,5 kW 2,2 kW
Max power consumption 1,9 kW 2,7 kW
Shaft speed 2830 RPM 2800 RPM
Rated current at 230 V 8,4 A 8,1 A
Rated current at 400 V - 4,5 A
Throughlet: ∅ 50 mm Weight: 33 kg Height: 782 mm
Width: 360 mm Diameter: ∅ 249 mm
Specifications can be changed without notice.
15
0
1,0
2,0
0
5
10
H (m)20
P (kW)3,0
0 2 10 126 84 14Q (l/s)
1
3
1
3
SlUDGE PUMPS | 21
SeNIOR
Technical data N
Discharge connection 4”
Rated output 3,2 kW
Max power consumption 4,2 kW
Shaft speed 1400 RPM
Rated current at 400 V 7,6 A
Rated current at 500 V 6,0 A
Throughlet: ∅ 80 mm Weight: 56 kg Height: 867 mm
Width: 480 mm Diameter: ∅ 320 mm
Specifications can be changed without notice.
8
0
2
4
1
3
0
4
2
6
H (m)10
P (kW)5
10 5 205 1 20 5Q (l/s)
22 | SlUDGE PUMPS
SANDY
Technical data N H
Discharge connection 3" 3"
Rated output 5,6 kW 5,6 kW
Max power consumption 6,6 kW 6,6 kW
Shaft speed 2895 RPM 2895 RPM
Rated current at 400 V 11 A 11 A
Rated current at 500 V 8,7 A 8,7 A
Throughlet: ∅ 46 mm (N), ∅ 32 mm (H) Weight: 56 kg
Height: 867 mm Width: 460 mm (N), 430 mm (H) Diameter: ∅ 320 mm
Specifications can be changed without notice.
N
H
10
0
456
3
12
0
20
30
H (m)40
P (kW)7
0 5 10 15 20Q (l/s)
H
N
SlUDGE PUMPS | 23
MaterialUpper seal
Tungsten carbide - Aluminium oxide ● ● ●
Carbon - Aluminium oxide ●
Lower seal
Silicon carbide - Silicon carbide ● ● ● ●
Stator housing
Aluminium ● ● ● ●
Outer casing
Stainless steel ● ● ●
Aluminium ●
Motor shaft
Stainless steel ● ● ● ●
Impeller
Hard-Iron™ ● ● ●
Polyurethane ●
Pump housing
Polyurethane ●
Aluminium with polyurethane lining ● ● ●
Screws and nuts
Stainless steel ● ● ● ●
O-rings
Nitrile rubber ● ● ● ●
Casted parts
Aluminium ● ● ● ●Specifications can be changed without notice.
Materials in sludge pumps
Solid
Salv
ador
Seni
or
Sand
y
24 | DRAINAGE PUMPS MADE oF STAINlESS STEEl, INoX
Drainage pumps made of stainless steel, INoXThese pumps are designed to meet the tough requirements from mines, construction sites, landfill sites and other applications that deal with corrosive water. one application is in mines where the water becomes caustic and destroys conventional pumps in matter of days. The pumps may also be used in applications where saltwater is pumped, like shipyards, fish farms, construction works in harbours and offshore projects. All INoX pumps can handle pH values from 2 - 10. They can also be equipped with zinc anodes for extra protection.
DRAINAGE PUMPS MADE oF STAINlESS STEEl, INoX | 25
26 | DRAINAGE PUMPS MADE oF STAINlESS STEEl, INoX
MINeTTe INOx
Technical data N
Discharge connection 3”
Rated output 2,0 kW
Max power consumption 2,6 kW
Shaft speed 2715 RPM
Rated current at 400 V 4,4 A
Throughlet: ∅ 7,5 mm Weight: 44 kg Height: 535 mm
Width: 295 mm Diameter: ∅ 240 mm
Specifications can be changed without notice.
15
0
1
2
0
5
10
H (m)20
P (kW)3
0 15105 20Q (l/s)
DRAINAGE PUMPS MADE oF STAINlESS STEEl, INoX | 27
MAjOR INOx
Technical data N H
Discharge connection 4” 3”
Rated output 6,3 kW 6,3 kW
Max power consumption 7,3 kW 7,3 kW
Shaft speed 2840 RPM 2840 RPM
Rated current at 400 V 12 A 12 A
Throughlet: ∅ 8,5 mm Weight: 65 kg Height: 665 mm
Width: 330 mm Diameter: ∅ 280 mm
Specifications can be changed without notice.
40
0
123456
0
10
20
30
H (m)50
P (kW)7
0
H
N
3020 4010 50Q (l/s)
H
N
28 | DRAINAGE PUMPS MADE oF STAINlESS STEEl, INoX
MASTeR INOx
50
60
40
0
2468
0
10
20
30
H (m)70
P (kW)10
0
H
N
N
403020 5010 60Q (l/s)
H
Technical data N H
Discharge connection 4” 3”
Rated output 8,0 kW 8,0 kW
Max power consumption 9,2 kW 9,2 kW
Shaft speed 2855 RPM 2855 RPM
Rated current at 400 V 15 A 15 A
Throughlet: ∅ 8,5 mm Weight: 77 kg (N), 81 kg (H)
Height: 720 mm Width: 330 mm Diameter: ∅ 280 mm
Specifications can be changed without notice.
DRAINAGE PUMPS MADE oF STAINlESS STEEl, INoX | 29
MaterialUpper seal
Carbon - silicon carbide ● ● ●
Lower seal
Silicon carbide - silicon carbide ● ● ●
Casted parts
Stainless steel (EN 10283-1.14412) ● ● ●
Outer casing
Stainless steel (EN 10088-3-1.14436) ● ● ●
Motor shaft
Stainless steel (EN 10088-3-1.14460) ● ● ●
Impeller
Stainless steel (EN 10283-1.14412) ● ● ●
Screws and nuts
Stainless steel (A4) ● ● ●
O-rings
Viton rubber ● ● ●
Diffusers
Nitrile rubber ● ● ●Specifications can be changed without notice.
Materials in drainage pumps made of stainless steel
Min
ette
IN
Ox
Maj
or
INOx
Mas
ter
INOx
30 | SlUDGE PUMPS MADE oF STAINlESS STEEl, INoX
Sludge pumps made of stainless steel, INoXour sludge pumps in stainless steel are used for pumping corrosive fluids with solids in harsh environment. The solids can be up to the size of 50 mm. These pumps are designed to meet the tough requirements from mines, construction sites, landfill sites and other applications that deal with corrosive water. one application is in mines where the water becomes caustic and destroys conventional pumps in matter of days. The pumps may also be used in applications where saltwater is pumped, like shipyards, fish farms, construction works in harbours and offshore projects. All INoX pumps can handle pH values from 2 - 10. They can also be equipped with zinc anodes for extra protection.
SlUDGE PUMPS MADE oF STAINlESS STEEl, INoX | 31
32 | SlUDGE PUMPS MADE oF STAINlESS STEEl, INoX
SALVADOR INOx
10
12
8
0
0,51,01,52,0
0
2
4
6
H (m)14
P (kW)2,5
0 1286 1042 14Q (l/s)
Technical data
Discharge connection 3”
Rated output 2,0 kW
Max power consumption 2,7 kW
Shaft speed 2800 RPM
Rated current at 400 V 4,4 A
Throughlet: ∅ 50 mm Weight: 47 kg Height: 645 mm
Width: 375 mm Diameter: ∅ 240 mm
Specifications can be changed without notice.
SlUDGE PUMPS MADE oF STAINlESS STEEl, INoX | 33
SeNIOR INOx
8
0
1234
0
2
4
6
H (m)10
P (kW)5
0 302015 25105 35Q (l/s)
Technical data
Discharge connection 4”
Rated output 4,1 kW
Max power consumption 5,2 kW
Shaft speed 1350 RPM
Rated current at 400 V 8,8 A
Throughlet: ∅ 80 mm Weight: 86 kg Height: 755 mm
Width: 480 mm Diameter: ∅ 280 mm
Specifications can be changed without notice.
34 | SlUDGE PUMPS MADE oF STAINlESS STEEl, INoX
SANDY INOx
20
0
123
6
45
0
5
10
15
H (m)25
P (kW)7
0 14108 12642 16Q (l/s)
Technical data
Discharge connection 3”
Rated output 6,3 kW
Max power consumption 7,3 kW
Shaft speed 2840 RPM
Rated current at 400 V 12 A
Throughlet: ∅ 46 mm Weight: 86 kg Height: 755 mm
Width: 480 mm Diameter: ∅ 280 mm
Specifications can be changed without notice.
SlUDGE PUMPS MADE oF STAINlESS STEEl, INoX | 35
MaterialUpper seal
Carbon - silicon carbide ● ● ●
Lower seal
Silicon carbide - silicon carbide ● ● ●
Casted parts
Stainless steel (EN 10283-1.14412) ● ● ●
Outer casing
Stainless steel (EN 10088-3-1.14436) ● ● ●
Motor shaft
Stainless steel (EN 10088-3-1.14460) ● ● ●
Impeller
Stainless steel (EN 10283-1.14412) ● ● ●
Screws and nuts
Stainless steel (A4) ● ● ●
O-rings
Viton rubber ● ● ●
Pump housing
Nitrile rubber ● ● ●Specifications can be changed without notice.
Materials in sludge pumps made of stainless steel
Salv
ador
IN
Ox
Seni
or
INOx
Sand
y IN
Ox
36 | SlURRY PUMPS, BRAVo
Slurry pumps, BRAVoGrindex slurry pumps are designed for use in quarries, mines, dredging, cleaning of settling ponds, other abrasive and other applications and industries that require pumps with very high durability. Each part of the BRAVo pump is designed for maximum endurance and reliability – an absolute must when pumping slurry.
All BRAVo pumps can handle liquids with pH values from 5.5 up to 14.
The Bravo 400 to 900 are equipped with agitator beneath the pump intake to stir up settled material toward the pump intake. The Bravo 400 to 900 can also be fitted with an optional cooling jacket for use in dry pit applications.
SlURRY PUMPS, BRAVo | 37
38 | SlURRY PUMPS, BRAVo
BRAVO 200
0
1
2
3
0
5
10
15
H (m)20
P (kW)4
0 252015105 30Q (l/s)
Technical data Bravo 200
Discharge connection 4”
Rated output 4,7 kW
Max power consumption 5,7 kW
Shaft speed 1445 RPM
Rated current at 400 V 9,6 A
Rated current at 500 V 7,7 A
Throughlet: 50 mm Weight: 157 kg Height: 760 mm Width: 460 mm
Specifications can be changed without notice.
Also available in Explosion Proof version
SlURRY PUMPS, BRAVo | 39
BRAVO 300
0
12345
0
5
10
15
20
H (m)25
P (kW)6
0 20 25 30 3515105 40Q (l/s)
Technical data Bravo 300
Discharge connection 4”
Rated output 5,9 kW
Max power consumption 7,1 kW
Shaft speed 1450 RPM
Rated current at 400 V 12 A
Rated current at 500 V 9,5 A
Throughlet: 50 mm Weight: 157 kg Height: 760 mm Width: 460 mm
Specifications can be changed without notice.
Also available in Explosion Proof version
40 | SlURRY PUMPS, BRAVo
BRAVO 400
0
2468
0
5
10
15
H (m)20
P (kW)10
70Q (l/s)
0 40 50 60302010
Technical data Bravo 400/7 Bravo 400/9 Bravo 400/14
Discharge connection 4” 4” 4”
Rated output 7 kW 9 kW 13,5 kW
Max power consumption 9 kW 11 kW 16 kW
Shaft speed 1455 RPM 970 RPM 1455 RPM
Rated current at 230V 28 A 36 A 47 A
Rated current at 400 V 16 A 21 A 28 A
Rated current at 500 V 13 A 17 A 21 A
Throughlet: 30 mm Weight: 231 kg Height: 1148 mm Width: 595 mm
Specifications can be changed without notice.
Also available in Explosion Proof version
SlURRY PUMPS, BRAVo | 41
BRAVO 500
0
369
1215
0
5
10
15
20
25
H (m)30
P (kW)18
0 40 50 60302010 70Q (l/s)
Technical data Bravo 500/15 Bravo 500/18 Bravo 500/22
Discharge connection 4” 4” 4”
Rated output 15 kW 18 kW 22 kW
Max power consumption 17 kW 21 kW 25 kW
Shaft speed 1460 RPM 1460 RPM 1460 RPM
Rated current at 230V 53 A 62 A 73 A
Rated current at 400 V 31 A 36 A 41 A
Rated current at 500 V 24 A 29 A 33 A
Throughlet: 40 mm Weight: 293 kg Height: 1273 mm Width: 595 mm
Specifications can be changed without notice.
Also available in Explosion Proof version
42 | SlURRY PUMPS, BRAVo
BRAVO 600
0
10
15
0
5
10
15
20
25
30
H (m)35
P (kW)20
0 40 50 60 70302010 80Q (l/s)
Technical data Bravo 600
Discharge connection 4”
Rated output 22 kW
Max power consumption 25 kW
Shaft speed 1460 RPM
Rated current at 400 V 41 A
Rated current at 500 V 33 A
Throughlet: 40 mm Weight: 293 kg Height: 1273 mm Width: 595 mm
Specifications can be changed without notice.
Also available in Explosion Proof version
SlURRY PUMPS, BRAVo | 43
BRAVO 700
0
1015
5
2025
0
5
10
15
20
25
30
H (m)35
P (kW)30
0 80 100 120604020 140Q (l/s)
Technical data Bravo 700/30 Bravo 700/37 Bravo 700/45
Discharge connection 6” 6” 6”
Rated output 30 kW 37 kW 45 kW
Max power consumption 33 kW 40 kW 49 kW
Shaft speed 1475 RPM 1475 RPM 1475 RPM
Rated current at 400 V 54 A 66 A 82 A
Rated current at 500 V 43 A 54 A 63 A
Throughlet: 36 mm Weight: 613 kg Height: 1652 mm Width: 875 mm
Specifications can be changed without notice.
Also available in Explosion Proof version
44 | SlURRY PUMPS, BRAVo
BRAVO 800
0
10
20
30
0
5101520253035
H (m)40
P (kW)40
0 80 100 120604020 140Q (l/s)
Technical data Bravo 800
Discharge connection 6”
Rated output 45 kW
Max power consumption 49 kW
Shaft speed 1475 RPM
Rated current at 400 V 82 A
Rated current at 500 V 63 A
Throughlet: 36 mm Weight: 613 kg Height: 1652 mm Width: 875 mm
Specifications can be changed without notice.
Also available in Explosion Proof version
SlURRY PUMPS, BRAVo | 45
BRAVO 900
0
10203040
0
10
20
30
40
H (m)50
P (kW)50
0 80 100 120604020 140Q (l/s)
Technical data Bravo 900/55 Bravo 900/70
Discharge connection 6” 6”
Rated output 55 kW 70 kW
Max power consumption 60 kW 75 kW
Shaft speed 1475 RPM 1475 RPM
Rated current at 400 V 103 A 132 A
Rated current at 500 V 82 A 102 A
Throughlet: 36 mm Weight: 845 kg Height: 1779 mm Width: 875 mm
Specifications can be changed without notice.
Also available in Explosion Proof version
46 | SlURRY PUMPS, BRAVo
Pumping slurryPumping fluids with high solids concentrations is more complicated than pumping water. To avoid sedimentation in the system you need to choose the right pump size and dimensions of hoses and pipes. The concentration of solids together with their size and shape may also affect pump performance and power requirements and therefore pump choice. Remember that settled solids might need external agitators, water jets or mixers to get them back in suspension and allow them to be pumped.
As each application requires its own calculation, we recommend you to contact your Grindex dealer for more information about slurry pumping.
SlURRY PUMPS, BRAVo | 47
MaterialDrive unit
Cast iron ● ● ● ● ● ● ● ●
Suction cover
Nitrile rubber ● ●
Pumphousing
Cast iron ● ●
Hard-Iron™ ● ● ● ● ● ●
Discharge connection type
Thread or hose connection ● ●
Victualic connection ○ ○ ○ ○ ○ ○
Agitator
Hard-Iron™ ● ● ● ● ● ●
Impeller
Hard-Iron™ ● ● ● ● ● ● ● ●
Lifting handle
Galvanised steel ● ●
Stainless steel ● ● ● ● ● ●
Motor shaft
Stainless steel ● ● ● ● ● ● ● ●
Studs, screws and nuts
Stainless steel ● ● ● ● ● ● ● ●Specifications can be changed without notice. ● Standard ○ Option
Brav
o 20
0
Brav
o 30
0
Brav
o 40
0
Brav
o 50
0
Brav
o 60
0
Brav
o 70
0
Brav
o 80
0
Brav
o 90
0
Materials in slurry pumps
48 | ACCESSoRIES
AccessoriesSome applications require the use of additional devices. Here is a list of Grindex accessories and what pump they can be used with.
● Available○ Not an optimal choicex Not available
□ Together with external starter( ) letter in parentheses refer to
pump model
Drainage pumpsMini x ● ● x ●Minex ● ● ● x ●Minette ● ● ● x ●Minor ● ● ● ● ●Major ● ● ● ● ●Master ● x ● ● ●Master SH ● x ● ● ●Matador ● x ● ● ●Maxi ● x □ ● ●Magnum ● x □ ● (H) ●Mega ● x □ x ●Specifications can be changed without notice.
Zinc
ano
des
Low
suc
tion
co
llar
Floa
t sw
itch
Tand
em
conn
ecti
on
Pum
p ra
ft
| 49ACCESSoRIES ACCESSoRIES
Sludge pumpsSolid x x ● x ○Salvador ● x ● x ○Senior ● x ● x ○Sandy ● x ● x ○
Drainage pumps made of stainless steel
Minette Inox ● ● □ x ○Major Inox ● ● □ x ○Master Inox ● ● □ x ○
Zinc
ano
des
Low
suc
tion
co
llar
Floa
t sw
itch
Tand
em
conn
ecti
on
Pum
p ra
ft
Sludge pumps made of stainless steel
Salvador Inox ● x □ x ○Senior Inox ● x □ x ○Sandy Inox ● x □ x ○
Slurry pumpsBravo 200 x x □ x ●Bravo 300 x x □ x ●Bravo 400 x x □ x ●Bravo 500 x x □ x ●Bravo 600 x x □ x xBravo 700 x x □ x xBravo 800 x x □ x xBravo 900 x x □ x xSpecifications can be changed without notice.
50 | GRINDEX PUMP SCHool
Grindex Pump SchoolThe school consists of technical articles, intended to help pump users with common matters in pumping with submersible pumps.
A drainage pump is the most commonly used pump type at construction sites. It is used for pumping water with less abrasive solids, like clay. Sand and solids in suspension can also be pumped, up to the size of the strainer holes (normally 7-12 mm). As sand is quite abrasive to the pump, it must not be too concentrated.
Sludge pumps are suitable for pumping water with solids, as well as for pumping sludge. The solids can be up to the size of the pump inlet diameter (normally 32-80 mm).
Pumps made of stainless steel are often used in copper mines, gold mines and other applications with corrosive fluids. An aluminium pump can handle water with pH values from 5-8, while a stainless steel pump can cope with pH values from 2-10.
Slurry pumps are designed to handle abrasive solids in suspension, like sand, gravel and concrete, in high concentration. They are also frequently used to move sand in suspension, i.e. at a dredging operation. To cope with the abrasives, the hydraulic parts of a slurry pump are often made of a very hard metal alloy. For improved performance, bigger slurry pumps can be equipped with agitator.
Part 1: Choosing the right pump type for the job
| 51GRINDEX PUMP SCHool GRINDEX PUMP SCHool
Plug and pumpAn electrical submersible pump is easy to use, just plug it in and pump. Several small pumps, placed where the need is for the moment, can pump the water to a dedicated collecting pit through long hoses. As the smaller pumps only weights 10-25 kg, you can carry the pump with you as the works moves to different spots at the site.
In the collection pit, a bigger pump is installed and pumps the water away from the site. By connecting hoses from several pumps to the pit, you can easily dewater a large area with just a few pumps.
52 | GRINDEX PUMP SCHool
Despite the simplicity, there are a few details to consider for optimizing the pumping:
Arrange the pump so it doesn’t burrow itself into sand or clay. This is a common problem at construction sites. It can be avoided quite simple by placing the pump on a bed of coarse gravel or a plank. The pump can also be hung freely by a rope or chain, or put into a cut-down and perforated oil drum.
Avoid sharp bend on the hoseAs sharp bends, kinks and pinching of the hose are reducing the capacity of the pump, a lot is won by avoiding those circumstances. Turning the pumps discharge connection so the hose doesn’t begin with at kink is easily arranged; it can be fitted vertical or horizontal on almost all Grindex pumps.
Part 2: Pump arrangement
| 53GRINDEX PUMP SCHool GRINDEX PUMP SCHool
Tandem connectionIn order to achieve higher pumping heads, two or more drainage pumps can be connected in series. For this purpose, a series connecting flange is available as an accessory. It is important that the hoses are equipped with check valves, preventing the pumps from suffering from wear when the water runs back from high heads uncontrolled if a power failure should occur.
Long distance pumping Tandem connection of pumps can also be used when the water needs to be pumped a longer distance. A simple arrangement can be pumping the water to a dedicated collection pit. The pit should be equipped with another pump, passing the water on. This technique can also be used for dewatering a greater area with several pumps spread out, pumping the water to a collection pit. The pit is then equipped with a greater pump, that pumps the water away from the site.
54 | GRINDEX PUMP SCHool
The pumped water is often containing solids that cause wear to pumps, valves and other dewatering equipment. This problem is very common in mines and tunnel construction sites. When pumping water that contains solids (like drill cuttings and sand), there is a risk of sedimentation in the system. A typical symptom is pipes and/or hoses that get filled with sediment, resulting in capacity losses. When the amount of solids increases, there is also an increase of wear on the pump.
one way to prevent this is by using sedimentation tanks where the drill cuttings may settle while the rest of the water is pumped away. The tank needs to be as close to the source as possible, ensuring that the solids are pumped as short distance as possible where the solids can settle in peace. To ensure the efficiency of the sedimentation tank, it needs to have as big surface area as possible. The more solids present in the water, the more care should be taken in the design of the sedimentation system.
Part 3: Sedimentation
| 55GRINDEX PUMP SCHool GRINDEX PUMP SCHool
For applications where solids can not be avoided, there are recom-mendations for the velocity of the medium in the discharge line: Mixture Min. velocity in discharge line
1. Water + coarse gravel 4 m/s (13.1ft/s)
2. Water + gravel 3 m/s (11.5 ft/s)
3. Water + sand
Sand particles < 0.1 mm (0.004 in) 1.5 m/s (8.2 ft/s)
Sand particles < 0.6 mm (0.024 in) 2.5 m/s (4.9 ft/s)
56 | lIMITATIoNS
limitations for Grindex pumps
Limitations Drainage pumps Sludge pumpsMax. submersion depth (IP68) 20 m
(Mini: 10 m,Mega: 75 m)
20 m(Solid 10 m)
Max. liquid temperature 40°C 40°C
Max. liquid density 1100 kg/m3 1100 kg/m3
pH of the liquid 5-8 (Mega: 6-13) 5-8
Limitations Stainless steel pumps Slurry pumps
Max. submersion depth (IP68) 20 m 20 m
Max. liquid temperature 40°C 40°C *
Max. liquid density 1100 kg/m3 1300-1700 kg/m3
pH of the liquid 2-10 5.5 - 14
* 70°C version as option
| 57lIMITATIoNS MoRE TECHNICAl INFoRMATIoN
All pump capacities are measured for clean water, directly at the discharge outlet. When connecting a hose you need to consider the friction losses that come from the size and length of the hose. The chart below shows this.
Chart for calculating friction losses in hoses
0,1
0,2
0,4
0,60,8
1
2
4
68
10
20
40
6080
100
1 2 3 4 5 6 7 8 9 10 20 30 40 50 60 80 100 200 300
Fric
tion
loss
es (
met
ers
/ 10
0 m
eter
of h
ose)
Flow (l/s)
8"
10"
4 m/s
2 m/s
2" (50mm) 3" (75mm) 4" (100mm) 6" (150mm)
58 | MoRE TECHNICAl INFoRMATIoN
Formulas for calculating friction losses in hoses and tubesThe chart on page 57 was created using the following formulas:
Friction factor
Sludge/slurry solids concentration
Material Cast iron Stainless PVC HDPe Concrete Hose
ε new (mm) 0,25 0,10 0,05 0,05 0,50 0,25
ε used (mm) 1,00 0,25 0,25 0,25 3,00 1,00
By volume(CV)
By mass/weight(Cm)
V solids
V solids + water
Vsolids = volume of
solids
Vsolids+water = total
sludge volume
m solids = mass of solids
m solids+water = total sludge mass
Cv =m solids
m solids + water
Cm =
Mixture
SV mixture Cv
SV solids Cm
SV = Specific weight
=
Friction loss(meters)
Velocity(m/s)
Reynoldsnumber
Friction factor(Swamee & jain formula)
f = friction factor
L = length (m)
v = avg. velocity
g = 9.81 m/s2
D = pipe ∅ (mm)
Q = flow (l/s)
D = pipe ∅ (mm)
v = velocity
D = pipe ∅ (mm)
μ = viscosity = 1,161 x 10-6 m2/s = 1 cSt
ε = roughness factor (mm)
D = pipe ∅ (mm)
Re = Reynolds number
H =friction
V = Re = f =
1000 x f x L x v2 1274 x Q v x D
2 x g x D D2 1000 x μ
0,25
10log +ε 5,74
3,7 x D Re 0,9
2
| 59MoRE TECHNICAl INFoRMATIoN MoRE TECHNICAl INFoRMATIoN
pH tables
Salt tables
Aluminium + zinc anodes
Cast iron and carbon steel
Stainless steel AISI 316 + zinc anodes
Stainless steel AISI 304 + zinc anodes
Sintered aluminium oxide
Cemented carbide + zinc anodes
Silicon carbide
Nitrile rubber
Flourocarbon rubber (viton)
1 10 102
200
0,04
500
0,1
18 000
3,2 27
Saturated
ppm
chl
orid
es%
sal
t
103 104 105
+ zinc anodes and epoxy
Salt water
0 1 2 3 4 5 6 7 8 9 10 11 12 1413
PH
Aluminium
Cast iron and carbon steel
Zinc anodes and epoxy
Stainless steel
Sintered aluminium oxide
Cemented cabide
Silicon carbide
Nitrile rubber
Flourocarbon rubber (viton)
60 | MoRE TECHNICAl INFoRMATIoN
Translation charts
F °
F°
-40
-20
0
20
40
60
80
100
120
140
160
180
200
220
240
260
280
302
C °
C °
-40
-20
0
20
40
60
80
100
120
140
150
US gpm
US gpm
0
500
1000
1500
2000
2500
3000
3500
4000
4500
5000
5500
6000
6341
m3/h
m3/h
0
100
200
300
400
500
600
700
800
900
1000
1100
1200
1300
1400
1440
l/min
400
50
100
150
200
250
300
350
0
l/s
l/min l/s
24000
22000
20000
18000
16000
14000
12000
10000
8000
6000
4000
2000
0
HP
HP
0
10
20
30
40
50
60
70
80
90
100
110
120
130
134
kW
kW
0
10
20
30
40
50
60
70
80
90
100
0
20
40
60
80
100
120
140
160
180
200
220
240
260
280
300
320
334,6
ft H2O
ft H2O
m H2O
m H2O
0
10
20
30
40
50
60
70
80
90
102100
PSI
PSI
0
145
10
20
30
40
50
60
70
80
90
100
110
120
130
140
2
3
4
5
6
7
8
9
10
1
0
BAR
Pressure Effect Flow Temperature
BAR
| 61MoRE TECHNICAl INFoRMATIoN RECoMMENDED GENERAToR SIZES
Recommended generator sizes
Pump model
Max. power consump-tion
Rated current
Permis-sible cable length**
Delayed fuse Generator set
Minex 1,6 kW 2,7 A 220 m 10 A 5 KVA
Minette 2,7 kW 4,7 A 150 m 10 A 8 KVA
Minor N H 4,4 kW 7,3 A 160 m 16 A 13 KVA
Major N H 6,6 kW 11,0 A 110 m 25 A 18 KVA
Master N H SH 11,7 kW 19,0 A 100 m 32 A 25* / 30 KVA
Matador N H 20,0 kW 32,0 A 90 m 63 A 40* / 50 KVA
Maxi N H 41,0 kW 65,0 A 120 m 100 A 85* / 105 KVA
Maxi L 33,0 kW 57,0 A 120 m 100 A 70* / 85 KVA
Magnum 62,0 kW 107,0 A 120 m 190 A 125* / 155 KVA
Mega 95,0 kW 148,0 A 120 m 230 A 225* / 270 KVA
Minette Inox 2,6 kW 4,7 A 150 m 10 A 8 KVA
Major Inox 7,3 kW 12,0 A 110 m 25 A 20 KVA
Master Inox 9,2 kW 15 A 80 m 32 A 25 KVA
Salvador 2,7 kW 4,7 A 150 m 10 A 8 KVA
Senior 4,2 kW 9,0 A 130 m 25 A 13 KVA
Sandy 6,6 kW 11,0 A 110 m 25 A 18 KVA
Salvador Inox 2,7 kW 4,7 A 150 m 10 A 8 KVA
Senior Inox 5,2 kW 8,8 A 130 m 16 A 10 KVA
Sandy Inox 7,3 kW 12,0 A 110 m 25 A 18 KVA
*Y/D start **Valid for standard cable sizes
Voltages 3~400 V, 50 Hz
62 | RECoMMENDED GENERAToR SIZES
Pump model
Max. power consump-tion
Rated current
Permis-sible cable length*
Delayed fuse Generator set
Mini 1,2 kW 5,2 A 80 m 10 A 4 KVA
Minex Lite 1,1 kW 5,1 A 80 m 10 A 4 KVA
Minex 1,8 kW 7,8 A 50 m 16 A 5 KVA
Minette 1,9 kW 8,4 A 50 m 16 A 5 KVA
Solid 1,2 kW 5,2 A 80 m 10 A 4 KVA
Salvador 1,9 kW 8,4 A 50 m 16 A 5 KVA
*Valid for standard cable sizes
Voltages 1~230 V, 50 Hz
Note
• In general, delayed fuse shall be dimensioned by rated current x 1,75
• TheabovegivenkVAvaluesaremeantasguidelinestosimplify the choice of generator size.
Regarding size of generator set, each different type has different charac-teristic; therefore it is always recommended to consult the manufacturer of generator to find out if the actual generator is capable of operating the pump.
Make sure that the cable is sized to allow a voltage drop of max. 5% of the nominal voltage.
RECoMMENDED GENERAToR SIZES
Price: €3
9005
392
ENG
50H
z. P
rinte
d 20
14.0
6
Grindex ABBox 7025 SE- 174 07 SundbybergSweden
Phone: +46 8 606 6600www.grindex.com