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.
(
)
Na
Nr
857
,
0
1
f
x
x
=
(
)
Na
Nr
857
,
0
1
f
x
x
=
(
)
Na
Nr
545
,
0
03
,
1
f
x
x
=
(
)
Na
Nr
727
,
0
8
,
0
f
x
x
=
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
Summary of Contents for Lowara Scuba SC205C
Page 1: ...Cod 191005661 Rev A Ed 06 2017 50 Hz SCUBA Series CLOSE COUPLED SUBMERSIBLE ELECTRIC PUMPS ...
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Page 13: ...13 TECHNICAL APPENDIX ...
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