Elkhart Brass FLX-20G - Manual (Page 6)

6
Warning:
The reaction force of this nozzle is dependent on the pressure and flow that is supplied to the nozzle.
Elevated nozzle pressure may create an unsafe reaction force for the user. The nozzle reaction
formula for water is as follows:
NR = 1.5*d
2
*NP
NR = Nozzle Reaction (Pounds)
D = Nozzle Diameter (Inches)
NP = Nozzle Pressure (psi)
*Formula only valid for water application.
D. Wet CAF Setting
The Wet CAF setting on the Flex Attack
®
has been designed to enable the user to apply a wet
solution of CAF. The discharge size of the nozzle in this setting is 1-1/8”. The CAF flow
characteristics of the nozzle in this setting will depend upon pump panel settings, but will
exhibit the similar characteristics to a 1-1/8” smooth bore tip. Each department should
thoroughly test the nozzle to determine the characteristics based on their foam system.
E. Dry CAF Setting
The Dry CAF setting on the Flex Attack
®
has been designed to enable the user to apply a dry
solution of CAF. This application is generally used for exposure protection. It should be noted
that a wet solution of CAF can be flowed through the nozzle in this setting. The discharge size
of the nozzle in this setting is 1-3/8”. The CAF flow characteristics of the nozzle in this setting
will depend on pump panel setting, but will exhibit similar characteristics to a 1-3/8” smooth
bore tip. Each department should thoroughly test the nozzle to determine the characteristics
based on their foam system.
IV. F
LEX
A
TTACK
®
M
AINTENANCE
The following maintenance procedures should be followed in order to reduce to possibility of
field difficulty or failure.
A. Inspections
Weekly visual inspections and monthly operational checks will promote proper nozzle function.
These inspections may be done daily in busy companies. All nozzles should be flow tested
before entering any hazardous environment to ensure equipment is operating properly.