AUTOMATIC
SPRINKLERSYSTEMS
FEUERSCHUTZ UND SICHERHEIT
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WATER:
FIRE PROTECTION FROM A NATURAL SOURCE
People have used water as an ex-
tinguishing agent since the dawn
of history, and today it is still the
preferred choice for modern fire
protection. It is reasonably priced,
and is always available in ad-
equate volumes. Since water is
compatible with most other sub-
stances, it is extremely versatile
when used as an extinguishing
agent.
The progressive modernization of
industry and commerce not only
calls for structural fire protection
and assistance from fire brigades;
there is also a need for automatic
fire protection systems which can
operate on the machinery or in the
factory.
Continuous innovation from
the earliest times until today...
It was the engineer Wilhelm
Walther who developed the very
first automatic sprinkler system in
Germany, as long ago as 1884.
His revolutionary extinguishing
concept was based on the idea of
fighting the fire quickly, reliably
and comprehensively as soon as it
developed. Today‘s modern sprink-
ler systems from TOTAL WALTHER
GmbH are still based on this prin-
ciple – all through the range, from
special fast-response sprinklers to
highly sensitive life safety sprink-
lers.
TOTAL WALTHER sprinkler systems
are successfully used as an alter-
native to passive fire protection,
and they allow enormous freedom
of design for commercial and indu-
strial buildings. In addition, special
fast response sprinklers are used to
protect people and property in
hotels and hospitals.
The intricate support-
ing structure of the
hall at Stuttgart
Airport is protected
by sprinkler systems
fromTOTAL WALTHER.
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SPRINKLER SYSTEMS
FOR FIRST CLASS EXTINGUISHING
The special extinguishing action of
a sprinkler system is based on the
principle of selective activation.
Sprinkler systems only operate
where they are needed.
Finely sprayed water
Because the water which emerges
from the sprinklers is separated in-
to a fine spray, it vaporizes quick-
ly, ensuring high coolingby ab-
sorbing the heatfrom hot fire
gases. This intensive vaporization
displaces some of the oxygen
needed to ”feed” the fire, giving
rise to an ”inerting” effect.
Targeted protection –
successful extinguishing
TOTAL WALTHER sprinkler systems
reliably confine fires to the initial
location where they arise. Materi-
als which have not yet been affec-
ted by the fire are moistened in
advance so that they are less likely
to ignite. In addition, the water
cools the structural elements of the
building, making them heat-resis-
tant. Without sprinkler systems
from TOTAL WALTHER, the striking
architectural design of the hall at
Stuttgart Airport would have been
impossible to implement. Modern
high-bay storage units also call for
special sprinkler protection. The
addition of film forming foam con-
centrates can extend the use of
sprinkler systems to virtually every
risk area in industry and large-
scale commerce.
The natural choice for
the environment
The high water solubility of smoke
and fire gases in the fine water
spray reduces harmful emissions.
The volume of extinguishing water
used in sprinkler systems is optimiz-
ed: a sprinkler will only go into
action if it is heated to its actuation
temperature. This ensures that un-
necessary extinguishing water and
residues are avoided. There are
also environment benefits from
sprinkler protection: harmful emis-
sions can largely be prevented by
confining a fire to the location
where it first arises, and by bond-
ing toxic gases to the extinguishing
water.
Innovative from
the very start: the
“Walther System”
automatic fire
extinguishing
sprinkler.
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PLAYING SAFE...
Sprinklers are specially developed
spray nozzles: they are sealed by
a glass bulb, and they react auto-
matically to the heat of a fire.
Sprinklers go into action when the
glass bulb bursts and the nozzle
closure is released. Water imme-
diately emerges from the nozzle,
and a spray plate effectively distri-
butes it over the entire seat of the
fire in the form of a fine shower of
water droplets. Depending on the
particular risk, the area protected
by each sprinkler varies between
9, 12 and 21m
2. The choice of
spray plate depends on the type
and position of the sprinkler in-
stallation. The experts at TOTAL
WALTHER GmbH attach particular
importance to the optimal ratio of
drop sizes for effective extinguish-
ing and uniform moistening of the
ground. Thanks to its wide range
of sprinklers, TOTAL WALTHER can
offer the correct sprinkler for every
location.
Spray sprinklers
can be mounted ”upright” or ”pen-
dent”. For normal risks in industry
and commerce, one sprinkler is
used for every 12 m
2. In warehou-
ses, 9 m
2are protected by one
sprinkler. Low hazard spray sprink-
lers can protect a maximum area
of 21m
2.
Conventional sprinklers
are fitted with a deflector which
can be installed both ”upright”
and ”pendent”. Since they spray
as much as 40% of the extinguish-
ing water upwards, they are espe-
cially suitable for installation under
combustible ceilings.
When the actuation temperature
of the sprinkler is reached, the
bulb bursts, the sealing element
is pushed out by the water
pressure, and the water flows
onto the deflector and is distri-
buted over the seat of the fire.
Upright and
pendent spray
sprinklers and
a conventional
sprinkler.
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...WITH THE RIGHT TYPE!
Side-wall sprinkler
This type of sprinkler is specially
for applications where for exam-
ple overhead clearance needs to
be ensured for vehicles. It can be
installed ”upright” or ”pendent”,
with different deflectors. For instal-
lation purposes, the maximum per-
mitted room width (both walls) is
7.5 m.
Horizontal extended coverage
side-wall sprinkler
A sprinkler which has been specifi-
cally developed to protect people
in hotels, hospitals, senior citizens‘
homes and nursing establishments.
The sprinkler‘s special design ena-
bles it to be installed at a later
stage, while keeping the building
costs down. This life safety sprink-
ler is fitted with a fast response ele-
ment.
ESFR sprinkler
A special sprinkler to protect high
bay warehouses where only the
ceiling can be equipped with
sprinklers. Its distinguishing feature
is a particularly high extinguishing
performance. ESFR stands for Early
Suppression Fast Response.
Optimal protection on your side
The effectiveness of sprinkler sy-
stems has been analysed over a
period of more than 100 years.
Regular investigations by the
Federal German Association for
Fire Extinguishing Equipment and
Systems (known as the BVFA) con-
firm that in most cases, only a few
sprinklers are needed to fight a fire
effectively.
An investment
that brings multiple benefits
TOTAL WALTHER’s sprinkler systems
offer reliable protection against
damage to property, and also
against the resultant production
stoppages and losses of business
in industry and commerce. Further-
more, insurers will grant discounts
of up to 65% on premiums for fire
insurance and business interruption
insurance. And thanks to sprinkler
systems, it is possible to depart
from the tight restraints of the con-
ditions imposed for structural fire
protection.
The ESFR sprinkler
is specially designed
for warehouse risks
which can only be
protected from the
ceiling.
This horizontal side-wall sprinkler
was specifically developed to protect
people. It can also be retrofitted,
with low costs for building work.
40%
30%
20%
10%
0%
1
2
3-4
5 or more
Sprinkler
41%
30%
15%
15%
The number of sprinklers
opened in the event of a fire
(Source: bvfa 1996)
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6
INTELLIGENT TECHNOLOGY
FOR SUCCESSFUL FIRE PROTECTION
The structure and handling of a
complex sprinkler system are ba-
sed on TOTAL WALTHER‘s exper-
tise and know-how in the devel-
opment of water extinguishing
systems. Our specialists will give
you professional advice on select-
ing the correct sprinkler, and on
how to choose the sprinkler sys-
tem which meets your particular
requirements for protection.
Wet systems
are suitable for fire protection in
rooms which are safe from frost.
Branchpipes with sprinklers are
arranged on the ceilings of the
rooms to be protected, and above
any locations at particular risk. The
pipe network is filled with water
up to the sprinklers. If the glass
bulb bursts, water will flow out im-
mediately. In wet systems, up to
1.000 sprinklers can be connected
to one alarm valve.
Dry systems
are used in rooms exposed to the
risk of frost. In the dry system, the
pipe network is pressurized from
compressed air upstream of the
alarm valve. If a sprinkler opens in
the dry system, the pressure is re-
leased. The alarm valve opens and
water flows to the open sprinkler.
In dry systems, up to 250 sprink-
lers can be connected to one
alarm valve.
If the dry valve station has a fast
opening device, 500 to 700
sprinklers can be used, depending
on the particular risk.
After a sprinkler has opened and
the alarm valve has opened, be-
tween 100 and 150 litres of water
per minute flow to the alarm bell
and the alarm pressure switch via
a bypass.
1
2
3
4
5
8
10
12
14
14
15
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From the water supply
to the point of use
Before a sprinkler system can be
commissioned, it must be connec-
ted to an industrial or public water
supply. The necessary volume of
water may be taken from a pres-
sure tank or a pump which draws
water from storage or intermediate
tanks.
Pre-Action: double protection
for better performance
Pre-action systems combine a fire
detection system with a sprinkler
system. They are used to ensure
reliable protection against false
alarms – for example, to protect
EDP systems against water dama-
ge. The pre-action valve is only
opened by a signal from the fire
detection system, not by a fall in
pressure after a sprinkler has open-
ed. If there is a fault on the fire
detection system, a pre-action sys-
tem is switched over to operate as
a normal dry system.
The specialist engineers and ex-
perts at TOTAL WALTHER GmbH
will give you professional advice
all the way through from the
design of your sprinkler system to
commissioning and maintenance -
a reliable team for every aspect of
fire protection.
6
7
9
11
13
16
Diagram of a sprinkler system
with an exhaustible water supply (pressure tank) and an inexhaustible water supply
(pump and tank with automatic in-fill)
1
Extinguishing water tank
2
Sprinkler pump
3
Dry alarm valve set
4
Wet alarm valve set
5
Dry pipe network for sprinklers (upright sprinklers, exposed pipe network)
6
Wet pipe network for sprinklers (pendent sprinklers, concealed pipe network)
7
Pressure tank
8
Pump test line with measurement device
9
Fire brigade hose connection
10
Tank filling pump
11
Compressor
12
Mechanical alarm bells
13
Fire detection panel
14
Alarm pressure switch
15
Pressure switch to start pump
16
Electrical switch cabinet
Pre-action
control
valve set
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FEUERSCHUTZ UND SICHERHEIT
TOTAL WALTHER GmbH
Feuerschutz und Sicherheit
Telephone 0049/221/6785-427
Telefax0049/221/6785-207
Waltherstra?e 51
D – 51069 Koln
A
International Ltd. Company
Please contact:
With its team of approximately 150
service employeesTOTALWALTHER
GmbH is on hand to look after your
safety and security right 24 hours
a day. You can reach us on our
Hotline day and night and at week-
ends for immediate service assist-
ance.
Fire extinguishing and security
systems have a name:
TOTAL WALTHER GmbH.
AND OUR MAINTENANCE
AND SERVICE TECHNICIANS ARE
AT YOUR DISPOSAL ALL DAY, EVERY DAY
Kaltenkirchen
Hannover
Berlin
Dresden
Dortmund
Koln
Frankfurt
Karlsruhe
Stuttgart
Erlangen
Munchen
Branches all over Germany make
it easy for you: our specialists and
technicians are nearby ready to
help you personally on site.
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