©Copyright Task Force Tips LLC 1999-2020
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LIA-025 September 2, 2020 Rev19
1.0 MEANING OF SAFETY SIGNAL WORDS
A safety related message is identified by a safety alert symbol and a signal word to indicate the level of risk involved with a particular
hazard. Per ANSI Z535.6, the definitions of the four signal words are as follows:
2.0 SAFETY
3.0 GENERAL INFORMATION
In order to produce the best quality low and medium expansion foam for firefighting, the foam solution must be aerated by some means.
The FoamJet, MX-FoamJet, and FoamJet-LX series of nozzle attachments and foam nozzles provide a simple and lightweight means to
aerate the foam as it exits the nozzle. The foam attachments are quickly attached or removed from the nozzle as the situation demands.
The attachments are available for a variety of TFT hand held & master stream nozzles. See the following pages for a listing of available
models and compatible nozzles. The label on each attachment also lists compatible nozzles.
4.0 FOAM TYPE, CONCENTRATION, AND PROPORTIONING
The FoamJet, MX-Foamjet, Foamjet-LX, and Foam Nozzle can be used with most types of concentrate including protein, fluoroprotein,
AFFF, and AR-AFFF (alcohol resistant foam).
The foam concentrate must be proportioned into the water before the nozzle by some means, such as batch mixing, eductors or direct
injection systems.
The nature of the fire hazard will determine the type of foam used, the concentration, and the desired expansion ratio. Finished foam
expansion and longevity (life) are largely dependent on the type and quality of foaming agents used in foam chemical formulations.
Some foams will perform better than others when used with these devices.
5.0 ATTACHMENT TO THE NOZZLE
The FoamJet, MX-FoamJet, and FoamJet-LX Series are attached to the nozzle by three different methods. Each of the three methods is
shown in the following pages. Each method clamps onto the bumper of the nozzle. Assure that bumper of nozzle is in good condition (no
nicks or abrasions) to positively latch and seal to FoamJet attachment.
6.0 USE OF FOAM ATTACHMENTS
Refer to fire service training and foam concentrate manufacturer’s recommendations for the proper use of foam.
6.1 LX FOAMJET
LX aspirators are intended to be used with the nozzle in the straight stream position only. Failure to do so will cause blow-back through
the air intakes of the foam attachment.
6.2 MX FOAMJET
Foam expansion ratios from the MX Foamjet series may be adjusted by changing the bumper position of the nozzle. As the nozzle
bumper is rotated back to the wide fog position, higher expansion ratios will be produced, but with reduced stream reach. Rotating the
nozzle bumper into straight stream will produce lower expansion ratios, but with longer reach.
DANGER
DANGER indicates a hazardous situation which, if not avoided, will result in death or serious injury.
WARNING
WARNING indicates a hazardous situation which, if not avoided, could result in death or serious
injury.
CAUTION
CAUTION indicates a potentially hazardous situation which, if not avoided, could result in minor
or moderate injury.
NOTICE
NOTICE is used to address practices not related to physical injury.
DANGER
Lack of foam can place operator at risk of injury or death. Establish foam flow and adequate supply
of concentrate for the task before advancing into hazardous situations.
WARNING
Improper use of agent could result in death or serious injury, including damage to the eyes. To
reduce the risk of injury, avoid directing agent onto the faces of yourself and other personnel.
Always wear PPE, including eye protection, as directed by the AHJ.
WARNING
Improper use of foam or using the wrong type of foam can result in illness, injury, or damage to the
environment. Follow foam manufacturer’s instructions and fire service training as directed by the
AHJ.
