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


11
SCUBA SERIES
OPERATING CHARACTERISTICS AT 50 Hz
These performances are valid for liquids with density ρ= 1.0 Kg/dm3 and kinematic viscosity ν= 1 mm2/sec.
SC2 - SC4 ~ 2850 [rpm] ISO 9906:2012 - Grade 3B
0 5 10 15 20 25 30
0 20 40 60 80 100 120 140
Q [Imp gpm]
Q [l/min]
SC411
SC409
SC407
SC211
SC209
SC207
SC205
0 5 10 15 20 25 30 35
0
50
100
150
200
250
0
10
20
30
40
50
60
70
80
90
Q [US gpm]
H[ft]
H[m]
30
40
50
60
0123456789
η[%]
Q [m
3
/h]
η
ηηηpSC2
η
ηηηpSC4
04451A_E_CH

12
SCUBA SERIES
PUMP - PANEL COMBINATION TABLE
PUMP TYPE ABSORBED CAPACITOR
CURRENT*
THREE-PHASE 380-415 V
kW HP A µF / 450 V QTD/… Q3D/…
SC205T 0,55 0,75 1,62 - …11 …05
SC207T 0,75 1 2,38 - …11 …11
SC209T 0,9 1,2 2,54 - …15 …11
SC211T 1,1 1,5 2,70 - …15 …11
SC407T 0,75 1 2,40 - …11 …11
SC409T 0,9 1,2 2,60 - …15 …11
SC411T 1,1 1,5 2,85 - …15 …11
*Maximum values within operating range. scuba-sc2-sc4-2p50-en_b_tp
For different voltage (e.g. 220-240 V) please contact our network.
POWER
RATED PANEL TYPE

13
TECHNICAL
APPENDIX

14
TECHNICAL APPENDIX
SUBMERSIBLE ELECTRIC PUMP INSTALLATION
DIAGRAM
1 - Submersible electric pump.
2 - Cable clamp.
3 - Level sensors for protection
against dry running.
4 - Non-return valve.
5 - Support bracket.
6 - Delivery pipe.
7 - Electrical cable for
motor power.
8 - Electric pump bleed/
priming cap.
9 - Pressure gauge.
10 - Diaphragm tank.
11 - Gate valve.
12 - Control panel.
13 - PTC/PT100 cable.
14 - Pressure transducer.
A - Distance between the clamps
that secure the drop cable
to the delivery pipe.
B - Distance from the bottom of
the well to the electric pump.
COMPONENTS REQUIRED FOR
CORRECT INSTALLATION
•Control panel equipped with a main switch and thermal
relay for overload protection.
•Non-return valve at 10 meters’ distance from the delivery
ports, plus an additional non-return valve every 30÷50
meters of piping.
•Gauge and gate valve at well mouth.
•Electronic probes or floats for protection against dry
running.
•Secure the drop cable to the pipe every 2÷3 meters of
piping.
•Make sure the electric pump is installed at a safe
distance from the bottom of the well.
•Make sure there is a minimum distance of 3 mm
between the diameter of the pump and the internal
diameter of the well.
•During operation, make sure that the water circulation
speed around the motor is at least 8 cm/sec.
•Make sure that the minimum dynamic level of the water
in the well is at least 1 m above the pump’s delivery port.
A0033_B_SC
7
4
6
3
2
2
2
10 m
3 m (A)
1 m (B)
2
1
13
10
5
12
9
4
8
1114

15
TECHNICAL APPENDIX
EXAMPLE OF INSTALLATION OF A SUBMERSIBLE
ELECTRIC PUMP CONTROLLED BY AN INVERTER
1 - Submersible electric pump.
2 - Cable clamp.
3 - Level sensors for protection against
dry running.
4 - Non-return valve.
5 - Support bracket.
6 - Delivery pipe.
7 - Electrical cable for motor power.
8 - Electric pump bleed/priming cap.
9 - Pressure gauge.
10 - Diaphragm tank.
11 - Gate valve.
12 - Control panel.
13 - PTC/PT100 cable
14 - Pressure transducer.
15 - Inverter (Hydrovaror ResiBoost).
16 - Filter (suggest for cable lenghts
exceeding 20 meters.
N.B. For correct Inverter-Motor coupling,
contact our sales network.
A0034_B_SC
16
7
9
4
2
3
1
4
15
5
8
10
12
2
2
2
13
1 m (B)
10 m
3 m (A)
6
1114

16
SCUBA, 50 Hz: SIZING OF ETHYLENE-PROPILENE
(EPR) CABLES, DOL (DIRECT ON LINE) STARTING




  ϕ
ϕϕϕ         
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



























 

  ϕ
ϕϕϕ        
           
      
     























































































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



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




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




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
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















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



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




 










 

 
 


  
  
  


  
  
 
  
  
  
TECHNICAL APPENDIX

17
TECHNICAL APPENDIX
CALCULATING THE SPEED OF THE FLUID
THAT FLOWS AROUND A SUBMERGED MOTOR
AND SIZING OF THE COOLING SLEEVE
The following formula is used to verify whether the speed of
the fluid that flows around the motor of a submersible pump
is high enough to guarantee the proper cooling of the motor:
Where: Q in [m3/s] is the operating flow rate of the electric pump; only half of this flow is taken into account,
because the fluid which is sucked into the area of the filter (2), comes from the motor side (3)
as well as from the pump side (1);
D in [m] corresponds to the diameter of the well;
d in [m] corresponds to the diameter of the motor (3);
v in [m/s] is the calculated speed of the fluid that flows around the motor.
Now, compare the speed thus calculated (v) with the minimum speed required for correct cooling of the motor
(vm): if v ≥vmit means that the motor is properly cooled, if v < vmwill be necessary to mount a cooling sleeve (4).
Example:
An electric pump OZ630/12 (motor diameter d = 0.144 m) operates in an 8” well (well diameter D = 0.203 m)
with flow rate
Q = 20 m3/h = 0.0055 m3/s.
Speed of fluid v = (0.0055/2) / {π·[(0.203)2/4 – (0.144)2/4]} = 0.17 m/s.
The minimum speed required for proper motor cooling is vm= 0.20 m/s.
Because v < vm, it will be necessary to mount a cooling sleeve.
--------------------------------------------------------------------------------------------------------------------------------------------------------------
The following formula is used to determine the maximum
diameter of a cooling sleeve to be mounted on a submersible motor:
Where: Q in [m3/s] is the operating flow rate of the electric pump; the entire flow is taken into account
because the fluid comes from the motor side (3) only;
D in [m] corresponds to the diameter of the cooling sleeve (4);
d in [m] corresponds to the diameter of the motors(3);
vmin [m/s] is the minimum speed of the fluid that flows around the motor.
If the electric pump operates at different flow rate, the minimum flow rate must be taken into account for
calculating the diameter of the cooling sleeve.
Example:
A motor coupled to the electric pump OZ615/24 (motor diameter d = 0.144 m), which operates with flow rate
Q = 15 m3/h = 0.0042 m3/s, requires a minimum speed of the fluid of vm= 0.20 m/s.
Cooling sleeve diameter D = {4·[(0.0042/(0.2·π)+(0.144)2/4] }0.5 = 0.217 m.
)
44
(
2
2
2dD
Q
v
−⋅
=
π







+
⋅
⋅= 4 4
2
d
v
Q
D
π

18
TECHNICAL APPENDIX
ASYNCHRONOUS MOTOR STARTING SYSTEMS
72
Direct
Suitable for low-power motors.
The starting current (Is) is much higher than the rated
current (In).
Starting current Is = In x 4 ÷ 8
Starting torque Ts = Tn x 2 ÷ 3
Indirect
• Star/Delta
The starting current (Is) is three times less than the direct
starting current.
Starting current Is = In x 1.3 ÷ 2.7
Starting torque Ts = Tn x 0.7 ÷ 1
In the star to delta changeover phase (approx. 70 ms) the
motor is not supplied and tends to reduce its rotation
speed.
In the case of submersible electric pumps with power
above 10 HP, the modest mass of the rotor causes a
slowdown at changeover, so that the initial Star supply
phase is rendered partially useless.
In such cases we recommend using impedance panels or
an autotransformer.
• Impedances
The motor is started with a voltage which is lower than
the rated one, and which is obtained by means of
impedances.
The Lowara panels use impedances which cut down to
70% the starting voltage.
The switch to the rated voltage takes place without any
interruptions of the power supply.
Rated voltage Un = 400 V
Starting voltage Us = Un x 0,7 = 280 V
Starting current
Us
Is = In x 4÷8 x = In x 3÷6
Un
Starting torque
Us
Ts = Tn x 2÷3 x
2
= Tn x 1÷1,5
Un
DIAGRAM OF STARTING INPUTS
1 = Direct SPEED’
2 = Star-Delta
3 = Impedances
4 = Autotransformer
Autotransformer
The pump is started with a voltage which is lower than
the rated one.
The Lowara panels use an autotransformer with a voltage
that is 70% the value of the line voltage.
The switch to the rated voltage occurs without any
interruptions of the power supply.
Rated voltage Un = 400 V
Starting current
Us
Is = In x 4÷8 x = In x 3÷6
Un
Starting torque
Us
Ts = Tn x 2÷3 x
2
= Tn x 1÷1,5
Un
(
(
)
)
(
(
)
)
ASYNCHRONOUS MOTOR STARTING SYSTEMS
Ia
TECHNICAL APPENDIX
Direct
Suitable for low-power motors.
The starting current (Is) is much higher than the
rated current (In).
Starting current Is = In x 4 ÷ 8
Starting torque Ts = Tn x 2 ÷ 3
Indirect
• Star/Delta
The starting current (Is) is three times less than the
direct starting current.
Starting current Is = In x 1.3 ÷ 2.7
Starting torque Ts = Tn x 0.7 ÷ 1
In the star to delta changeover phase (approx. 70
ms) the motor is not supplied and tends to reduce
its rotation speed.
In the case of submersible electric pumps with
power above 10 HP, the modest mass of the rotor
causes a slowdown at changeover, so that the initial
Star supply phase is rendered partially useless.
In such cases we recommend using impedance
panels or an autotransformer.
• Impedances
The motor is started with a voltage which is lower
than the rated one, and which is obtained by means
of impedances.
The Lowara panels use impedances which cut down
to 70% the starting voltage.
The switch to the rated voltage takes place without
any interruptions of the power supply.
Rated voltage Un = 400 V
Starting voltage Us = Un x 0,7 = 280 V
Autotransformer
The pump is started with a voltage which is lower
than the rated one.
The Lowara panels use an autotransformer with a
voltage that is 70% the value of the line voltage.
The switch to the rated voltage occurs without any
interruptions of the power supply.
Rated voltage Un = 400 V

19
TECHNICAL APPENDIX
109
TECHNICAL APPENDIX
WATER REQUIREMENTS IN CIVIL USERS
Determination of the water requirement depends on the type of users and contemporaneity factor. The calculation
may be subject to regulations, standards or customs that may vary from country to country. The calculation method
shown below is an example based on practical experience, designed to provide a reference value and not a substi-
tute for detailed analytical calculation.
Water requirements in condominiums
The consumption table shows the maximum values for each delivery point, depending on the plumbing amenities.
MAXIMUM CONSUMPTION FOR EACH DELIVERY POINT
TYPE CONSUMPTION (l/min)
Sink 9
Dishwasher 10
Washing machine 12
Shower 12
Bathtub 15
Washbasin 6
Bidet 6
Flush tank WC 6
Controlled flushing system WC 90
G-at-cm_a_th
The sum of the water consumption values of each delivery point determines the maximum theoretical re-
quirement, which must be reduced according to the contemporaneity coefficient, because in actual fact the
delivery points are never used all together.
The table of water requirements in civil users shows the maximum contemporaneity flow-rate values
based on the number of apartments and the type of WC for apartments with one bathroom and two bath-
rooms. As regards apartments with one bathroom, 7 drawing points have been taken into consideration, while 11
points have been considered for apartments with two bathrooms. If the number of drawing points or apartments is
different, use the formulas to calculate the requirement.
()NaNr857,0
1
f
xx
=
()NaNr857,0
1
f
xx
=
()NaNr545,0
03,1
f
xx
=
()NaNr727,0
8,0
f
xx
=
Coefficient for apartments with one bathroom and flush tank WC
Coefficient for apartments with one bathroom and controlled flushing system WC
Coefficient for apartments with two bathrooms and flush tank WC
Coefficient for apartments with two bathrooms and controlled flushing system WC
f= coefficient; Nr= number of delivery points; Na= number of apartments
WATER REQUIREMENTS IN CIVIL USERS
Determination of the water requirement depends on the type of users and contemporaneity factor. The
calculation may be subject to regulations, standards or customs that may vary from country to country.
The calculation method shown below is an example based on practical experience, designed to provide a
reference value and not a substitute for detailed analytical calculation.
Water requirements in condominiums
The consumption table shows the maximum values for each delivery point, depending on the plumbing
amenities:
MAXIMUM CONSUMPTION FOR EACH DELIVERY POINT
The sum of the water consumption values of each delivery point determines the maximum theoretical
requirement, which must be reduced according to the contemporaneity coefficient, because in actual fact
the delivery points are never used all together.
The table of water requirements in civil users shows the maximum contemporaneity flow-rate values
based on the number of apartments and the type of WC for apartments with one bathroom and two bathro-
oms. As regards apartments with one bathroom, 7 drawing points have been taken into consideration, while
11 points have been considered for apartments with two bathrooms. If the number of drawing points or
apartments is different, use the formulas to calculate the requirement.
MAXIMUM CONSUMPTION FOR EACH DELIVERY POINT
TYPE CONSUMPTION (l/min)
Sink 9
Dishwasher 10
Washing machine 12
Shower 12
Bathtub 15
Washbasin 6
Bidet 6
Flush tank WC 6
Controlled flushing system WC 90
G-at-cm-en_a_th

20
TECHNICAL APPENDIX
110
TECHNICAL APPENDIX
NUMBER OF
APARTMENTS 1212
1 32 40 60 79
2 45 56 85 111
3 55 68 105 136
4 63 79 121 157
5 71 88 135 176
6 78 97 148 193
7 84 105 160 208
8 90 112 171 223
9 95 119 181 236
10 100 125 191 249
11 105 131 200 261
12 110 137 209 273
13 114 143 218 284
14 119 148 226 295
15 123 153 234 305
16 127 158 242 315
17 131 163 249 325
18 134 168 256 334
19 138 172 263 343
20 142 177 270 352
21 145 181 277 361
22 149 185 283 369
23 152 190 290 378
24 155 194 296 386
25 158 198 302 394
26 162 202 308 401
27 165 205 314 409
28 168 209 320 417
29 171 213 325 424
30 174 217 331 431
35 187 234 357 466
40 200 250 382 498
45 213 265 405 528
50 224 280 427 557
55 235 293 448 584
60 245 306 468 610
65 255 319 487 635
70 265 331 506 659
75 274 342 523 682
80 283 354 540 704
85 292 364 557 726
90 301 375 573 747
95 309 385 589 767
100 317 395 604 787
120 347 433 662 863
140 375 468 715 932
160 401 500 764 996
180 425 530 811 1056
200 448 559 854 1114
For seaside resorts, a flow rate increased by at least 20% must be considered. G-at-fi_a_th
FLOW RATE (l/min)
WITH FLUSH TANK WC WITH CONTROLLED FLUSHING SYSTEM WC
TABLE OF WATER REQUIREMENTS IN CIVIL USERS
TABLE OF WATER REQUIREMENTS IN CIVIL USERS