Xylem Lowara Scuba Series User manual

Cod. 191005661 Rev. A Ed.06/2017
50 Hz
SCUBA
Series
CLOSE-COUPLED SUBMERSIBLE ELECTRIC PUMPS

3
CONTENTS
Specifications................................................................................................................................... 5
Identification code and rating plate.............................................................................................. 8
Hydraulic performance range....................................................................................................... 9
Dimensions and weights............................................................................................................ 10
Motor - control panel combination table................................................................................ 12
Technical appendix..................................................................................................................... 13

4
SCUBA SERIES
HYDRAULIC PERFORMANCE RANGE AT 50 Hz
01723_A_CH
Q [m3/h] 1,5 2,5 3,5 4,5 5,5 6,5 7,5
1,02,03,04,05,06,07,08,0
H [m]
15
25
35
45
55
65
75
20
30
40
50
60
70
80
Q [US gpm]
4 6 8 12 14 16 18 22 24 26 28 32 3410 20 30
H [ft]
60
80
120
140
160
180
220
240
260
100
200
Q [l/min] 22,1 27,7 38,7 44,3 55,3 60,9 71,9 77,5 88,5 94,1 105,1 110,7 121,7 127,317 33 50 66 83 100 116 133
Q [Imp gpm]
3 4 6 7 8 9 11121314 16171819 21222324 262728295 10 15 20 25

5
Close-coupled
submersible
electric pumps
SCUBA Series
MARKET SECTORS
RESIDENTIAL, AGRICULTURE, INDUSTRY.
• Self cooling motor
• Double seal
• Built-in capacitor
and motor
protection
• Easy to install
• Silent operation
APPLICATIONS
• Water supply from primary water supply tanks or
reservoirs, 6” wells, basins and watercourses.
• Sprinkler irrigation systems.
• Pressure boosting with pump directly inserted in
tank or well, to avoid suction problems and noise.
• Rain water harvesting
• Car washing system
SPECIFICATIONS
PUMP
•Delivery:
up to 7,5 m3/h at 2850 rpm.
•Head:
up to 80 m at 2850 rpm.
•Maximum overall diameter of
elec tric pump: 128 mm.
•Maximum immersion depth: 20 m.
•Maximum permissible quantity of
suspended sand: 25 g/m3.
•Passes solids: up to 2,5 mm.
•Delivery port: Rp 1 1/4.
•Motor power : 0,55 to 1,1 kW.
MOTOR
•Single-phase version:
220-240 V, 50 Hz 2 poles (2850 rpm).
•With built-in automatic reset
overload ad protection.
•With built-in capacitor.
•Three-phase version:
380-415 V, 50 Hz 2 poles (2850 rpm);
overload protection to be provided
by user and installed in the control
panel (see electric panel section).
•Maximum supply voltage
variations: ±5%.
•Classe F insulation.
•Can also operate in horizontal
position.
•Maximum number of starts per
hour, evenly distributed:
25 for motors up to 0,9 kW.
20 for motors 1,1 kW.
•Maximum temperature of water
in contact with the motor: 40°C
(continuos use).
CONTRUCTION
CHARACTERISTICS
•Close-coupled, multiple impeller
submersible electric pump.
The liquid end is located
underneath the electric motor,
which is cooled by the pumped
liquid.
•Impellers are radial centrifugal type,
made of technopolymer.
•AISI 304 stainless steel diffusers.
•Outer sleeve, motor casing, suction
screen and shaft extension are
made of AISI 304 stainless steel.
•Dry motor.
The electric motor is protected by a
double seal system with an oil
chamber. The silicon carbide
mechanical seal, highly resistant to
abrasion and wear, together with the
second mechanical seal, lubricated
thanks to the special configuration of
the oil chambers, guarantee
long-lasting reliability.
OPTIONAL FEATURES
- Pre assembled float switch
- Kit with inverter ResiBoost
- External capacitor

6
SCUBA SERIES
PUMP SECTION AND LIST OF MAIN COMPONENTS
04453B_C_DS
1
2
3
4
5
6
7
8
9
10
11
12
13
14
16
15
17
17
17
17
17
18
17
19
20
24
21
23
22
25
26

7
SCUBA SERIES
TABLE OF MATERIALS
EUROPE
EUROPEEUROPE
EUROPE USA
USAUSA
USA
1 Sleeve with head Stainless steel EN 10088-1-X5CrNi18-10 (1.4301) AISI 304
2 Diffuser Stainless steel EN 10088-1-X5CrNi18-10 (1.4301) AISI 304
3 Initial bowl Stainless steel EN 10088-1-X5CrNi18-10 (1.4301) AISI 304
4 Final diffuser Stainless steel EN 10088-1-X5CrNi18-10 (1.4301) AISI 304
5 Final bowl Stainless steel EN 10088-1-X5CrNi18-10 (1.4301) AISI 304
6 Impeller Tecnopolymer PPO
7 Bearing spider Tecnopolymer PPS
8 Lower head Tecnopolymer PPS
9 Lower bearing support Die-cast aluminium
10 Motor head Polymer PPS
11 Sleve with wound stator Stainless steel EN 10088-1-X5CrNi18-10 (1.4301) AISI 304
12 Upper head Tecnopolymer PPS
13 Bearing support upper Stainless steel EN 10088-1-X5CrNi18-10 (1.4301) AISI 304
14 Complete falnge
15 Filter Stainless steel EN 10088-1-X5CrNi18-10 (1.4301) AISI 304
16 Connection container
17 Elastomers Nitrile rubber (NBR)
18 External mechanical seal Silicon carbide
19 Bush bearing Tecnopolymer PU
20 Internal mechanical seal (fixed part) Steatite
21 Cable entry complete parts
22 Capacitor housing spacer PA66-GF35
23 Capacitor
24 Internal mechanical seal (rotary part) Carbo-graphite
25 Motor shaft Acciaio inox EN 10088-3-X17CrNi16-2 (1.4057) AISI 431
26 Pump shaft Acciaio inox EN 10088-1-X5CrNi18-10 (1.4301) AISI 304
scuba-sc2-sc4-2p50-en_c_tm
REFERENCE STANDARD
REFERENCE STANDARDREFERENCE STANDARD
REFERENCE STANDARD
NAME
NAMENAME
NAME MATERIAL
MATERIALMATERIAL
MATERIALN°
N°N°
N°

8
S C 2 0 7 T C G L 2 7
SCUBA SERIES
IDENTIFICATION CODES
Name
[SC] = SCUBA Series
Flow rate
[2] = 2 m3/h
[4] = 4 m3/h
Motor power
kW x 10
Frequency
[Null] = 50 Hz
[6] = 60 Hz
Capacitor
[Null] = without capacitor
[C] = with capacitor
Float
[Null] = without float
[G] = with float
EXAMPLE: SC207CGL27
SC = SCUBA series pump
2 = Flow rate 2 m3/h
07 = Motor power 0,75 kW
Null = 50 Hz
Null = Single-phase
C = With capacitor
G = Float
L27 = 20 m cable H07.
Cable
[L27] = 20 m cable H07
Power supply
[M] = Single-phase
[T] = Three-phase
04466_C_SC
04467_C_SC
SINGLE-PHASE RATING PLATE THREE-PHASE RATING PLATE
LEGEND
1 - Electric pump type
2 - Code
3 - Delivery range
4 - Head range
5 - Characteristics motor
6 - Manufacturing data and serial number
7 - Maximum immersion depth
8 - Minimum head
9 - Rated output

9
SCUBA SERIES
HYDRAULIC PERFORMANCE RANGE AT 50 Hz
2 3 4 5 6 781
H [m]
20
30
40
50
60
70
80
10
5 6 7 8 9 20 3010
H [ft]
40
50
60
70
80
90
200
100
4 5 6 7 8 9 2010
20 30 40 50 60 70 80 90 100
SC2 - SC4 ISO 9906:2012 - Grade 3B
Q [Imp gpm]
∼ 2850 [rpm]
04456_C_CH
Q [l/min]
Q [m3/h]
SC2
SC4
Q [US gpm]

10
SCUBA SERIES
DIMENSIONS AND WEIGHTS AT 50 Hz
HYDRAULIC PERFORMANCE TABLE AT 50 Hz
DIMENSIONI E PESI SERIE SCUBA SC2-SC4 2poli 50 Hz
DIMENSIONS WEIGHT
N°
SINGLE- THREE- OF L
PHASE PHASE STAGES mm kg
SC205C SC205T 4 526 13,5
SC207C SC207T 5 566 15
SC209C SC209T 6 591 16
SC211C SC211T 7 636 18
SC407C SC407T 4 541 14,5
SC409C SC409T 5 566 15,5
SC411C SC411T 6 611 17,5
scuba-sc2-sc4-2p50-en_c_td
Denominazione : TABELLA DIMENSIONI E PESI SERIE SC2-SC4 2 poli 50 Hz
Codice :scuba-sc2-sc4-2p50-en_c_td
Revisione : C
Compilato : Romagnolo Saverio Modificato : Casarotto Luciano
Data : 11 Ottobre 2004 Data : 30 Luglio 2007
PUMP TYPE
TABELLA DI PRESTAZIONI IDRAULICHE SERIE SCUBA SC2-SC4 2 poli 50 Hz
PUMP TYPE
l/min 0 20 30 40 50 60 75 80 100 125
m3/h 0 1,2 1,8 2,4 3 3,6 4,5 4,8 6 7,5
kW HP
SC205C - SC205T 0,55 0,75 47,7 43,4 40,5 36,8 32,3 26,7 15,9
SC207C - SC207T 0,75 1 61,2 56,7 52,7 47,6 41,5 34,3 21,7
SC209C - SC209T 0,9 1,2 72,4 66,3 61,8 56,3 49,6 41,8 27,4
SC211C - SC211T 1,1 1,5 84,5 77,6 72,6 66,3 58,6 49,2 31,7
SC407C - SC407T 0,75 1 49,4 42,8 40,6 38,1 34,0 32,5 25,9 16,5
SC409C - SC409T 0,9 1,2 62,5 52,3 49,6 46,7 41,8 40,1 32,2 19,9
SC411C - SC411T 1,1 1,5 75,5 63,4 60,0 56,4 50,6 48,5 39,3 25,4
scuba-sc2-sc4-2p50-en_c_th
RATED
POWER
Q = DELIVERY
H = TOTAL HEAD METRES COLUMN OF WATER
DATI ELETTRICI SERIE SCUBA SC2-SC4 2 poli 50 Hz
PUMP TYPE ABSORBED ABSORBED CAPACITOR PUMP TYPE ABSORBED ABSORBED ABSORBED
POWER* POWER* POWER* POWER* POWER*
SINGLE-PHASE 220-240 V THREE-PHASE 220-240 V 380-415 V
kW A µF / 450 V kW A A
SC205C 0,93 4,37 16 SC205T 0,86 2,81 1,62
SC207C 1,15 5,19 25 SC207T 1,09 4,12 2,38
SC209C 1,32 5,88 25 SC209T 1,27 4,40 2,54
SC211C 1,63 7,25 30 SC211T 1,45 4,68 2,70
SC407C 1,18 5,28 25 SC407T 1,12 4,16 2,40
SC409C 1,38 6,17 25 SC409T 1,33 4,50 2,60
SC411C 1,76 7,85 30 SC411T 1,59 4,94 2,85
*Maximum values within operating range- scuba-sc2-sc4-2p50-en_c_te
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scuba-sc2-sc4-2p50-en_c_tc
Single-phase range available with pre-assembled float (SCUBA G)
Versions with10 meter cable available on request
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