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Scope of supply
Scope of supply
Scope of supply
Scope of supply
Scope of supply
GB GB
GB GB
GB
BWT Avanti HWS, consisting of:
BWT Avanti HWS
BWT Avanti HWS
BWT Avanti HWS
BWT Avanti HWS
1 1 1 1 1 Top in brass with non-return valve
2 2 2 2 2 Connection joint with test screw and/or
connection possibility for supply pressure
gauge
3 3 3 3 3 Transparent cylinder with filter element
4 4 4 4 4 Hose connection for flushing water
5 5 5 5 5 Rotary button for backwashing element
6 6 6 6 6 Back-pressure gauge
7 7 7 7 7 Spring hood
8 8 8 8 8 Indicator for back-pressure setpoint
9 9 9 9 9 Locking screw
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10 Rotary button for pressure reducing valve
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Purpose
Purpose
Purpose
Purpose
Purpose
The domestic water station BWT Avanti HWS
a combination of valves and installations
containing in series (according to DIN 1988) a
non-return valve, backwashing filter and pressu-
re reducing valve.
The non-return valve prevents water from being
sucked back out of the domestic water installation
into the piping network.
The filter is intended for the filtration of drinking
and service water. It protects the water lines and
the water-carrying system parts connected to
them from functional disturbances and corrosion
damage caused by impurities particles such as
rust particles, chippings, sand, hemp, etc.
The filter cannot be used for chemically treated
circulating water, process water and cooling wa-
ter for continuous cooling systems.
For water with coarse dirt particles a coarse dirt
separator is to be arranged upstream.
The filter is not suitable for oils, greases, solvents,
soaps and other lubricating fluids. It is not suitable
either for separating substances soluble in water.
The pressure reducing valve is used for pressu-
re reduction and setting of the desired back pres-
sure in the domestic water supply unit.
Caution: The installation of the unit must be carried
out by the public water-supply company in
accordance with the installation and operating
instructions according to AVB Wasser V, Art. 12.2
or by an installation company included in the
approved list of plumbing companies of a public
water-supply company.
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BWT Avanti HWS
BWT Avanti HWS
BWT Avanti HWS is
BWT Avanti HWS
Function
Function
Function
Function
Function
The raw water flows through the raw water inlet
into the domestic water station. The non-return
valve opens when water is taken off only in flow
direction. It is tightly closed in rest position or with
counter-pressure.
The raw water flows into the filter and there from
the inside to the outside through the filter element
to the clear water outlet. At the same time
impurities larger than 90/125 µm are held back on
the inside of the filter fabric. The filter element can
be cleaned by backwashing at regular intervals.
The backwashing is carried out manually. At the
same time, after opening of the backwashing lever,
first the coarse dirt particles are washed out and
then by turning the backwashing element the
particles adhering to the filter fabric are sucked
off and washed out.
The pressure reducing valve keeps the adjusted
back pressure almost constant, even if the supply
pressure fluctuates. A uniform and not excessively
high pressure is less harmful to the valves and
equipment of the entire domestic water installation.
Installation requirements
Installation requirements
Installation requirements
Installation requirements
Installation requirements
Observe local installation regulations, general
guidelines, general hygiene conditions and the
technical specifications.
A connection to the sewage system (drain) with min.
DN 40 should be available.
Fit the domestic water station in cold water lines
before the objects to be protected (see installation
diagram). Always provide shut-off valves. The
shut-off valve after the pressure reducing valve
must be equipped with a drain valve.
Caution: The place of installation must be free from
frost and avoid disturbing influences (e.g. solvent
vapours, fuel oil, lyes, chemicals of all kinds, UV
radiation and heat sources above 40 °C).
The transparent plastic part must be replaced after
hard shocks and impacts (e.g. with an unsuitable
tool, or after falling onto a stone floor, etc.) even if
there is no visible damage (danger of bursting).
Caution: Keep the plastic part free from oil and
grease. Avoid extreme pressure surges by installing
a solenoid valve downstream, etc.
Pressure-sensitive
downstream must be secured with safety valves.
equipment
arranged
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