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FOAM EXTINGUISHING SYSTEMS AND FOAM CONCENTRATES

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					FOAM EXTINGUISHING
SYSTEMS AND
FOAM CONCENTRATES
FOAM EXTINGUISHING:
FIRST-CLASS TECHNOLOGY,
MADE TO MEASURE
      TOTAL WALTHER GmbH has been
      a leading manufacturer of first-
      class foam extinguishing systems
      for more than 50 years.

      When it comes to fixed fire protec-
      tion systems, success depends on the
      highest quality standards. Innovati-
      ve research, development, manu-
      facture and installation of foam
      systems are your guarantee of qua-
      lity, safety and reliability – to protect                      Foam in action
      people, industrial plants, produc-                             on a liquid fire
      tion facilities and warehouses, and
      to protect the environment.

      No matter what you want to pro-
      tect against the hazards of fire –
      we can develop the best possible
                                                                     Aircraft hangars
      made-to-measure fire protection
                                                                     are protected
      concept for you. Our advisers, spe-
                                                                     against fire
      cialist engineers and technicians                              hazards by foam
      are always glad to place their                                 sprinkler systems
      know-how at your disposal.                                     and monitors.




                                                  Foam systems
                                                  protect storage
                                                  tanks and pro-
                                                  cessing units in
                                                  refineries and
                                                  chemical plants.




                                                                                        2
EXTINGUISHING FOAM:
THE SECRET OF ITS STRENGTH


Extinguishing foam consists of
three effective components: water,
foam concentrate and air.

Water and foam concentrate are
mixed to create a foam solution.
The addition of air creates the
foam bubbles which are so effec-
tive at extinguishing fire. Because
the bubbles are lighter than oil,
gasoline or water, they have out-
standing flow characteristics, and
they can float on liquid surfaces.

The temperature - resistant foam
forms a stable blanket over com-
bustible liquids. It cuts the flames
                                                                                   Testing foam in a
off from the supply of oxygen, and        Ignitable gases
                                                                                   hazardous goods
suppresses the development of fire        In liquid fires, the foam blanket hin-   warehouse, with
gases – to protect people as well         ders the generation of combustible       the formation of
as the environment.                       gases which might combine with           an 80 cm - high
                                          the air to form an ignitable mixture     foam blanket

Fire is made powerless                    again.
Foam is the most reliable extin-
guishing agent to protect combus-         Solids
tible liquids against the hazards of      The low surface tension of the
fire.                                     foam solution enables the water to
                                          penetrate deep into the burning
Combustible liquids                       substances.
The foam cuts the combustible li-
quids off from the heat of the fire,
and this prevents the fire from
spreading.




                  Foam spreading out
                   during a liquid fire
                    in a storage tank




3
THE RIGHT FOAM
FOR EVERY RISK


                                                                  Fluoroprotein foam concentrates
                                                                  combine hydrolysed protein, stabili-
                                                                  sing agents and preservatives with
                                                                  hydrocarbon surfactants. Thanks to
                                                                  their optimal extinguishing capabi-
                                                                  lity, their outstanding flow charac-
                                                                  teristics and their high resistance
                                                                  to contamination from fuels, they
                                                                  are ideal for protecting refineries
                                                                  and plant in the petrochemical sec-
                                                                  tor.

                                                                  Synthetic foam concentrates to
                                                                  produce high-expansion foams
                                                                  consist of hydrocarbon surfactants,
                                                                  making them particularly suitable
                                                                  for foaming large areas and for
                           TOTAL WALTHER GmbH offers a            room flooding: they are effective
                           range of foam concentrates to          extinguishing agents for warehou-
                           cope with every risk – a reliable      ses, cargo holds on ships and
                           and effective basis for made-to-       mine shafts.
                           measure fire protection, from air-
                           ports to tank farms.

                           Protein foam concentrates
                           are based on hydrolysed protein,
                           stabilising agents and preservati-
                           ves. They produce a highly stable
                           mechanical foam with good ex-
                           pansion properties and high resis-
                           tance to reignition. Protein foam
                           concentrates are the preferred
                           choice to protect storage, transport
                           and processing facilities for easily
      Foam is a tried-                                                            Foam extinguishing
                           ignitable and combustible liquids.
      and-tested                                                                  systems protect
      extinguishing                                                               offshore platforms.
      agent for protect-
      ing chemical
      plants and refi-
      neries.




                                                                                                        4
Aqueous film forming                                           Tank farms are
foam concentrates (AFFF)                                       a typical area of
                                                               application for
consist of a combination of fluoro-
                                                               foam-based fire
surfactants and hydrocarbon sur-                               extinguishing
factants. Low energy is used to ge-                            systems.
nerate a high quality foam which
can be used effectively in a wide
range of systems including sprink-
ler systems. This is why AFFF con-
centrates are included in the stan-
dard equipment for fire brigades,
airports, refineries, production faci-
lities and many other application
areas.

Alcohol-resistant
foam concentrates (AFFF-ARC) are
AFFF concentrates to which a wa-         For the sake of the environment
ter-soluble polymer is added, mak-       Our foam concentrates are com-
ing it possible to extinguish water-     pletely biodegradable. Since the
soluble fuels such as methanol.          foam can absorb toxic substances
Alcohol-resistant foam concentrates      during a fire, TOTAL WALTHER
are mainly used for fire protection      GmbH also takes care of disposal
when leaded and unleaded petrol          in accordance with environmental
is being loaded.                         considerations.

Standards and Quality Assurance
                                         Foam sprinkler
The production of TOTAL WALTHER
                                         systems protect
foam concentrates is subject to a        tank loading
strict quality assurance procedure.      stations against
All the foam concentrates conform        fire and explo-
to the European and American             sion hazards.

standards of the following instituti-
ons: UL, DIN, Norske Veritas, US
Coastguard, VdS, FM and other
                                         Our new foam
independent test authorities.
                                         disposal unit is a
                                         practical contribu-
                                         tion towards
                                         active environ-
                                         mental protection.




5
MIXING IS THE SECRET OF SUCCESS:
PROPORTIONERS AND FOAMING EQUIPMENT

                                            Foam test
                                            on a liquid
                                            storage tank




                                            Sprinkler systems
                                            with foam proportioning
                                            are mainly used in practical appli-
                                            cations involving hazardous goods
                                            stores with combustible liquids, or
                                            a high proportion of plastics. Wet
                                            systems, dry systems and pre-
                                            action extinguishing systems are
                                            suitable for this purpose. To ensure
                                            the successful coordination of the
                                            sprinkler system and the foam ex-
      In a foam extinguishing system,       tinguishing system, only recogniz-
      water and foam concentrate are        ed specialist companies are allow-
      mixed together in a proportioner.     ed to undertake these installations.
      The choice between a balanced
      pressure system and in-line pro-      Perfect foaming
      portioners depends on the energy      depends on choosing a suitable
      supply and the range of adjust-       foaming device. It supplies the air
      ment which is required.               to the foam solution, and distributes
                                            the foam thus formed over the fire.
      Balanced pressure
      proportioning systems
      equalize the foam concentrate
      pressure with the water pressure at
      the intake of the foam proportio-
      ner. The foam concentrate pressure
      can be provided either by a pump,
      or from the system water pressure.

      In-line proportioners
      use the water flow to generate low
      pressure in a constriction in the
      proportioner, through which the
      foam concentrate is induced. They
      are reasonably priced, but unlike
                                            Foam sprinkler system
      proportioners with automatic ad-
                                            in high rack storage
      justment, they have a fixed flowra-
      te and a small operating range.




                                                                                    6
The experts at TOTAL WALTHER                                                   This horizontal
GmbH recommend:                                                                pressure tank
                                                                               (bladder tank)
                                                                               contains an
Foam sprinklers                                                                elastic bladder
A low-viscosity film-forming con-                                              from which the
centrate is suitable for foaming.                                              foam concentrate
This supplies low- expansion foam                                              is pressed out
with good surface coverage.                                                    by the water
                                                                               pressure, and
                                                                               then fed to the
Foam nozzles                                                                   proportioner.
feed the foam solution on to a de-
flector plate or a screen streaming
water jet sucks in the air that is      Generators
needed for foaming.                     produce high-expansion foam by
                                        feeding the mixture of foam con-
Monitors                                centrate and water to a screen         Foam proportio-
                                                                               ner based on the
are fixed-installed devices for long-   which is located in the airflow of a
                                                                               Venturi principle
distance foam projection. They can      blower.
be swivelled horizontally and verti-
cally – by hand, by remote control      Everything from one source
or by automatic programming.            TOTAL WALTHER GmbH is your
They are ideal for reaching distant     professional partner for all aspects
fire objects, and as a complement       of foam extinguishing technology,
to fixed sprinkler installations, for   from design and system enginee-
example in aircraft hangars.            ring to the foam concentrates them-
                                        selves.
Foam branchpipes
are air-aspirating devices to pro-
tect combustible liquids storage
tanks. When used in conjunction
with foam chambers, the foam is
fed into the storage tank from
above, onto the combustible liquid.
In the “Sub - Surface Method”, the
foam is fed from the base of the
tank so that it rises through the
liquid to the surface, where it is
evenly distributed.

                                        Foam monitor (bottom left)
                                        and medium-expansion foam nozzle
                                        (bottom right) in test operation




7
Tyco Integrated Systems Sp. z o.o.
Fire Extinguishing Division
Telephone 0048/22/54 58 - 317
Telefax 0048 / 22 / 54 58 - 300
ul. Pulawska 469
02-844 Warszawa

A       International Ltd. Company

				
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